Paeds 1 🫁 🫀🚽 Flashcards

Renal, Resp, Cardo, GI

1
Q

causes of UTI?

A
E.coli
enterobacter 
klebsiella 
Proteus (phosphate stones)
pseudomonas (indicates structural defect)
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2
Q

symptoms of UTI in infants

A

poor feeding, vomiting, irritability, failure to thrive, diarrhoea

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3
Q

symptoms of UTI in children (4)

A

abdominal pain, fever, dysuria, increased frequency, haematuria

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4
Q

lower UTI symptoms (5)

A
urgency 
frequency 
nocturia 
dysuria
suprapubic pain 
fever
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5
Q

upper UTI symptoms (3)

A

abdominal pain
nausea and vomiting
rigors

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6
Q

UTI investigations (3)

A

urine collection
bloods - cultures, FBC, U&E, ESR, CRP
urine dip MC and S
USS - check for abnormalities

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7
Q

management of UTI in children?

A

General: fluid, analgesics, antiemetics
<3 months –> refer to specialist
>3 months
upper UTI - cephalosporin or co-amoxiclav 7-10 days
lower UTI - trimethoprim, nitrofurantoin, cephalosporin or co-amoxiclav for 3 days

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8
Q

what are the clinical features of pyelonephritis?

A

fever
loin pain
vomiting
white cells in urine

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9
Q

what is enuresis?

A

involuntary discharge of urine by day or night or both in children aged 5 years or older in the absence of congenital or acquired defects of the nervous system or urinary tract.

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10
Q

what is primary nocturnal enuresis?

A

the child had never achieved continence

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11
Q

what is nocturnal secondary enuresis?

A

the child has been dry for at least 6 months before

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12
Q

what is the management of nocturnal enuresis?

A

look for possible underlying causes/triggers (constipation, DM, UTI)
advise of fluid intake, diet and toilet behaviour
rewards systems

first line treatment for children under the age of 7 is an enuresis alarm

first line treatment for children over the age of 7 - desmopressin.

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13
Q

what can cause daytime enuresis? (4)

A
lack of attention to the bladder sensation 
detrusor instability
bladder neck weakness 
UTI, constipation
neuropathic bladder 

secondary - may be due to emotional upset, UTI, polyuria from DM

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14
Q

what are the classifications of acute kidney injury?

A

pre-renal - most common in children
renal - there is salt water retention
post renal - urinary obstruction

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15
Q

management of acute kidney injury? (3)

A

metabolic acidosis –> sodium bicarbonate
hyerkalaemia –> calcium gluconate if ECG changes, salbutamol, calcium change resin, glucose and insulin, dietary restriction

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16
Q

how would you treat pre-renal AKI?

A

suggested by hypovolaemia - needs to be corrected with fluid replacement

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17
Q

how would you treat renal AKI?

A

if fluid overload - restrict fluids, emergency management of metabolic abnormalities

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18
Q

how would your treat post-renal AKI?

A

relief of obstruction with nephrostomy or catheterisation

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19
Q

what is acute kidney injury?

A
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20
Q

what are pre-renal causes of AKI

A
  • most common cause in children - hypovolaemia (burns, sepsis, gastroenteritis, haemorrhage, nephrotic syndrome), circulatory failure
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21
Q

what are renal causes of AKI

A

vascular (haemolytic uraemia syndrome (HUS), vasculitis, embolus, renal vein thrombosis)
Tubular (acute tubular necrosis, ischaemic, toil, obstructive)
glomerular - glomerulonephritis
interstitial - interstitial nephritis, pyelonephritis

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22
Q

what are post renal causes of AKI?

A

obstruction

congenital or acquired

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23
Q

what is the presentation of chronic kidney disease? (4)

A
anorexia 
lethary 
polydipsia 
polyuria 
failure to thrive 
body deformities 
hypertension 
acute on chronic renal failure 
unexplained normochromic normocytic anaemia
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24
Q

management of chronic kidney disease (5)

A

Reduce CV risk - Control BP, statin
Potassium control - Dietary restriction
Prevention osteodystrophy - Calcium carbonate, vit D
Treat anaemia - Subcut EPO
Treat acidosis - Sodium bicarbonate
Prophylaxis - Influenza and pneumococcal vaccinations

Calorie supplements
NG feeding
Fluid correction
Hormonal abnormalities

Dialysis and transplant

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25
what causes chronic kidney disease? (4)
``` hypertension diabetes glomerular sclerosis lupus RA HIV NSAIDS toxins - tobacco ```
26
what can uraemia cause? (3)
``` nausea loss of appetite encephalopathy (tremor) pericarditis increase bleeding uremic frost - crystals in skin ```
27
what happens to potassium levels in CKD?
less potassium is excreted which leads to build up in blood | hyperkalemia - can cause arrhythmias
28
what happens to calcium levels in CKD?
low - hypocalcemia | kidneys activate vitamin D which aids the absorption of calcium
29
What happens when calcium levels are low due to kidney dysfunction?
parathyroid hormone is released which causes the bones to lose calcium this leads to bone being brittle which is called renal osteodystrophy
30
how is CKD diagnosed (3)
changes in GFR less than 60ml/kg/1.73m2 Proteinuria (ACR >3mg/ml) kidney biopsy to look for changes such as glomerular sclerosis.
31
what are the three manifestations of nephrotic syndrome?
proteinuria (>3+ on dipstick) hypoalbuminaemia oedema
32
what is the most common cause of nephrotic syndrome in children ?
minimal change disease can also be caused by focal glomerulosclerosis and post stept nephritis
33
what happens in nephrotic syndrome?
there is damage and inflammation to the podocytes which normally help prevent protein loss from the glomerulus. As a result of this, increased protein is lost through the nephron tubules.
34
How is nephrotic syndrome treated?
90% of proteinuria resolves with corticosteorid therapy (prednisolone for 4 weeks then a smaller dose every other day for 4 weeks)
35
what are the complications of nephrotic syndrome? (3)
hypovolaemia thrombosis infection hypercholesteroleamia
36
how does minimal change disease present?
nearly always presents as nephrotic syndrome
37
What are the causes of minimal change disease? (3)
the majority are idiopathic drugs - NSAIDS, rifampicin Hodgkin's lypmhoma, thymoma infectious mononucleosis
38
what are the features of nephrotic syndrome?
Oedema Proteinuria Hypoalbuminaemia Hyperlipidemia
39
how is minimal change disease managed?
80% of cases are steroid responsive | cyclophoshphamide in the next step for steroid-resistant cases
40
what is congenital nephrotic syndrome?
when nephrotic syndrome presents within the first 3 months of life. it is rare commonest kind is recessively inherited associated with high mortality usually due to complications of hypoalbuminaemia
41
what are the causes of acute nephritis? (3)
post infectious (including streptococcus) Vasculitis (HSP, SLE, wegener granulomatosis) IgA nephropathy and mesangiocapillary glomerulonephritis anti-glomerular basement membrane disease (good pasture syndrome)
42
what are the clinical features of nephritic syndrome? (3)
decreased urine output and volume overload hypertension which may cause seizures oedema, characteristically around the eyes haematuria and proteinuria
43
how is nephritic syndrome managed?
water and electrolyte balance and the use of diuretics when necessary
44
what are the features of henoch-schonlein purpura? (4)
``` characteristic palpable purpuric rash on buttocks and extensor surfaces of arms and legs arthralgia periarticular oedema abdominal pain glomerulonephritis ```
45
what are the common factors for HSP to occur? (3)
``` between 3 and 10 years more common in boys peaks during winter months often preceded by a response infection cause is unknown ```
46
what is Alport syndrome
it is a familial nephritis usually an X-linked recessive disorder that progresses to end-stage renal failure by early adult life in males and is associated with sensorineural deafness and ocular defects.
47
what is hypospadias?
congenital abnormality of the penis which occurs in approx 3/1000 male infants an abnormal opening below the urethra can also happen in girls but way way more common in boys
48
what is hypospadias characterised by? (3)
a ventral urethral meatus a hooded prepuce chord (ventral curvature of the penis) in more severe form the urethral meatus may open proximally in the more severe variants
49
How is hypospadias treated?
corrective surgery is performed before 2 years of age
50
what are the investigations for nephrotic syndrome (4)
Urine dipstick: proteinuria and check for microscopic haematuria MSU to exclude urinary tract infection. Quantify proteinuria using an early morning urinary protein:creatinine ratio or albumin:creatinine ratio. FBC and coagulation screen Urea and electrolytes CXR
51
what are the investigations for HSP?
bloods (raised IgA, raised ESR, ASO titre (check for PSG) | urine dip
52
what is the management for HSP?
Supportive care- rest, rehydration, analgesia for MSK pain | prednisolone if severe
53
what is the presentation of post streptococcal glomerulonephritis?
URTI or pharyngitis then 1-3 weeks later haematuria oliguria proteinuria odema hypertension signs of CV overload
54
what are the investigations for post streptococcal glomerulonephritis? (5)
``` bloods - FBC - anaemia - U&Es - increased urea and creatinine, increased potassium, acidosis - antistreptolysin O increased anti DNAase B titre low C3 urinalysis - haematuria, proteinuria renal biopsy ```
55
what is the management of post streptococcal glomerulonephritis? (3)
penicillin - 10 days treat hypertension and fluid overload correct metabolic imbalances
56
what is vesicoureteric reflux?
there is abnormal back flow of urine from the bladder to the ureter and kidneys there is abnormal vesicoureteric junction where the ureters enter the bladder - the ureters are displaced laterally, entering the bladder in a more perpendicular fashion than at an angle therefore shortened ureter, and the junction cannot function adequately
57
what is the grading of vesicoureteric reflux?
I - Reflux into the ureter only, no dilatation II -Reflux into the renal pelvis on micturition, no dilatation III-Mild/moderate dilatation of the ureter, renal pelvis and calyces IV - Dilation of the renal pelvis and calyces with moderate ureteral tortuosity V - Gross dilatation of the ureter, pelvis and calyces with ureteral tortuosity
58
what are the investigations (2) and management (3) for vesicoureteric reflux?
micturating cystourethrogram for diagnosis (MCUG) | DMSA (dimercapto succinic acid) scan should also be performed to check for scarring (4-6 months after illness) Management: Avoid constipation Avoid an excessively full bladder Prophylactic Abx Surgical input from paediatric urology
59
what are the triad of features of haemolytic uraemia syndrome (HUS)?
acute renal failure microangiopathic haemolytic syndrome thrombocytopenia
60
what is typical HUS
secondary HUS | classically caused by shiga toxin producing E.coli (STEC)
61
what is atypical HUS?
primary HUS due to complement dysregulation
62
What investigations would you perform for HUS? (3)
FBC (anaemia, thrombocytopenia, fragmented blood film) U&E (acute kidney injury) stool culture (Shiga toxin-producing Escherichia coli) LDH (non specific sign for haemolytic anaemia)
63
What is the management of HUS?
supportive treatment - fluids, blood transfusion and dialysis if required.
64
what are the most common viral causes of respiratory infections? (3)
``` respiratory syncytial virus (RSV) rhinoviruses parainfluenza influenza metapneumovirus adenovirus ```
65
what are the most common bacterial causes of respiratory infections? (3)
``` streptococcus pneumoniae streptococci haemophilus influenzae bordetella pertussis mycoplasma pneumoniae ```
66
what increases the risk of respiratory infection? (3)
``` parental smoking overcrowded housing, damp housing poor nutrition underlying lung disease male gender haemodynamically significant congenital heart disease immunodeficiency ```
67
whar are the classifications of respiratory infections?
upper respiratory tract infection (common cold, sore throat (pharyngitis including tonsilitis), acute otitis media, sinusitis) Laryngeal tracheal infection (croup, bacterial tracheitis, acute epiglottitis) bronchiolitis pneumonia
68
what are the symptoms of a common cold? (5)
``` acute onset rhinitis sore throat sneezing post-nasal drainage/drip cough fever non-specfic red pharynx nasal mucosal oedema ```
69
what are the common causes of the common cold (coryza)?
rhinoviruses, coronaviruses, RSV
70
what is pharyngitis?
pharynx and soft-palate are inflamed and local lymph nodes are enlarged and tender
71
what are the different types of sore throat?
pharyngitis tonsilitis laryngitis
72
what is tonsilitis?
intense inflammation of the tonsils often with a purulent exudate
73
what are common causes of tonsilitis? What is the most common cause?
Usually viral - most commonly caused by rhinovirus, coronavirus and adenovirus group A beta-haemolytic streptococci, and EBV
74
what are the symptoms and signs of tonsilitis?
pain on swallowing fever >38 tonsillar exudate cervical lymphadenopathy
75
how do you treat bacterial tonsilitis?
1st line - Phenoxymethylpenicillin | 2nd line - clarithromycin
76
what is the criteria used for antibiotic prescription in tonsilitis?
the centor criteria - presence of tonsilar exudate - tender anterior cervical lymphadenopathy or lymphadenitis - history of fever - absence of cough 3 must be present
77
what test can be used to detect group A streptococcus pharyngitis?
rapid antigen detection test | should be used routinely in patients with sore throat to allow immediate point-of-care assessment
78
What is bronchiolitis? What is the most common cause?
it is a condition characterised by acute bronchiolar inflammation and a build up of mucus in the small airways of the lungs. usually caused by RSV virus - 75-80% of cases
79
what age group does bronchiolitis usually affect, when is the common time for it to occur?
it is almost exclusively an infantile disease - commonly affecting children under 2 most common cause of serious RTU in children under one maternal IgG provides protection to neonates higher incidence in winter months
80
what can cause bronchiloitis other than RSV?
rhinovirus influenza virus may be secondary to a bacterial infection
81
what are the symptoms of bronchiolitis? (4)
coryzal symptoms, including virus precede: Dry cough increasing breathlessness wheezing, fine inspiratory crackles feeding difficulties tachypnoea increased work of breathing may be present - retractions, grunting, nasal flaring
82
what are the features of bronchiolitis that NICE recommend immediate referral for? (3)
``` apnoea child looks seriously unwell to health care professional severe resp distress central cyanosis persistant oxygen sats less than 92% ```
83
what are the features of bronchiolitis that NICE recommend consider referral for?
a resp rate over 60BPM difficulty breast feeding or inadequate oral fluid intake clinical dehydration
84
how would you diagnose bronchiolitis?
largely clinical nasopharyngeal aspirate or throat swab - RSV rapid testing and viral cultures blood and urine cultures if child is pyrexic FBC ABG if severely unwell
85
what is the treatment for bronchiolitis?
supportive care, supplemental oxygen and mechanical ventiliation
86
what is the prophylaxis for bronchiolitis and who is it given to?
monthly IM injection of palivizumab given to preterm babies born before 29 weeks, or babies born with chronic lung disease of prematurity before 32 weeks also can be given to those who are severely immunocompromised
87
what is croup?
Viral URTI | croup is also known as laryngotracheobronchitis - common respiratory disease of childhood
88
what are the causes of croup?
usually parainfluenza | other causes include RSV adenovirus, rhinovirus, enterovirus
89
what age group does croup commonly affect? | what time of year is it common?
commonly children who are between 6 months and 3 years | Autum
90
what are the features of croup? (3)
stridor (high pitched, wheezing sound caused by disrupted airflow) barking seal like cough, which is typically worse at night fever coryzal symptoms if severe there may be signs of resp distress
91
what are the red flag signs of rep failure? (3)
cyanosis lethargic/decreased level of consciousness labored breathing tachycardia
92
what are the differentials of croup? (3)
``` epiglottitis inhaled foreign body acute anaphylaxis bacterial tracheitis diptheria ```
93
what is pseudomembranous croup? What bacteria is it caused by?
aka bacterial tracheitis rare but very dangerous similar to viral croup but child has high fever, appears toxic and has rapidly progressive aiway obstruction with copious amounts of thick airway secretions it is caused by staphylococcus aureus treatment is with IV Abx, intubation and ventilation if needed
94
what is mild, moderate and severe croup defined as?
mild: Occasional barking cough No audible stridor at rest No or mild suprasternal and/or intercostal recession The child is happy and is prepared to eat, drink, and play moderate: Frequent barking cough Easily audible stridor at rest Suprasternal and sternal wall retraction at rest No or little distress or agitation The child can be placated and is interested in its surroundings severe: Frequent barking cough Prominent inspiratory (and occasionally, expiratory) stridor at rest Marked sternal wall retractions Significant distress and agitation, or lethargy or restlessness (a sign of hypoxaemia) Tachycardia occurs with more severe obstructive symptoms and hypoxaemia
95
when should you consider admission for croup? (3)
moderate or severe croup < 6 months of age known upper airway abnormalities (e.g. Laryngomalacia, Down's syndrome) uncertainty about diagnosis (important differentials include acute epiglottitis, bacterial tracheitis, peritonsillar abscess and foreign body inhalation)
96
how should you diagnose and manage croup?
clinical diagnosis mild croup - single dose of oral dexamethasone moderate - single dose of oral dexamethasone plus nebulised adrenaline severe - single dose oral dexamethasone plus nebulized adrenaline plus oxygen
97
what are causes of stridor in children? (4)
croup acute epiglotittis inhaled foreign body laryngomalacia
98
what is asthma?
a chronic respiratory condition characterised by reversible and paroxysmal constriction of the airways secondary to type 1 hypersensitivity
99
what are the risk factors for the development of asthma? (5)
``` personal or family history of atopy antenatal factors: maternal smoking, viral infection during pregnancy low birth weight not being breastfed maternal smoking around the child exposure to high concentrations of allergens (e.g. house dust mite) air pollution premature birth ```
100
what other atopic conditions are associated with asthma?
IgE-mediated atopic conditions such as eczema alleric rhinitis (hay fever)
101
what are the precipitating factors for asthma? (4)
cold air atmospheric pollution NSAIDs and beta-blockers exposure to allergens Exercise
102
what are the clinical features of asthma? (5)
symptoms worse at night and early morning (diurnal variation) symptoms that have a non-viral trigger cough dyspnoea wheeze, chest tightness- episodic triggers increased work of breathing there may be expiratory wheeze on auscultation reduced peak expiratory flow rate
103
what investigations would you perform for asthma? (5)
spirometry - FEV1 and FVC (FEV1 will be reduced, FVC normal ) peak expiratory flow response to bronchodilator on spirometry CXR ``` also consider skin prick testing fractional expired nitic oxide - elevated sputum culture exercise testing ```
104
what are the differentials for asthma? (3)
``` bronchiolitis episodic viral wheeze inhaled foreign body recurrent aspiration cardiac failure CF primary ciliary dyskinesia ```
105
how is asthma managed in children?
SABA when required add a regular preventer - very low dose ICS or LTRA if less than 5. Initial add on therapy - very low dose ICS plus inhaled LABA or LTRA next consider increasing ICS dose or add LTRA or LABA if no response to LABA consider stopping
106
what are the two clinical patterns of preschool wheeze?
viral episodic wheeze - wheezing only in response to viral infection and no interval symptoms. Usually resolves by 5 years. Triggered by viruses that can cause the common cold. Multiple trigger wheeze - wheeze in response to viral infection but also to another trigger such as exposure to aeroallergens and exercise. A significant proportion go on to have asthma
107
what would finger clubbing suggest?
CF or bronchiectasis
108
how do you manage viral episodic wheeze?
treatment is symptomatic only first-line - SABA second line - LTRA - montelukast
109
how do you manage multiple trigger wheeze?
trial of either ICS or LTRA - typically for 4-8 weeks
110
when should you consider hospital admission for children with asthma?
if after a high dose of bronchodilator therapy they: - have not responded adequately clinically - if they are becoming exhausted - have decreased oxygen sats less than 92% - if CXR is indicated - if there are unusual features or signs of severe infection
111
what are the classifications of a mild, moderate, severe and life threatening acute asthma attack? Give 5 features of a LT asthma attack
MILD: : SaO2 >92% in air, vocalizing without difficulty, mild chest wall recession and moderate tachypnoea MODERATE: SpO2 >92%, PEF>50% best or predicted, no clinical features of severe asthma SEVERE: SaO2 <92% PEFR 33-50%, cannot complete sentences in one breath or too breathless to feed or talk. Heart rate >125 (if over 5 years) or >140 (2-5 years) RR > 30 (over 5 years) or >40 (2-5 years) LIFE THREATENING: SaO2 <92% ,PEFR <33%, silent chest, poor resp effort, cyanosis, hypotension, exhaustion, confusion, normal C02
112
how do you manage a mild to moderate acute asthma attack?
- give beta-2 agonist via a spacer - one puff every 30-60 seconds up to a max of 10 puffs if symptoms not controlled repeat and refer to hospital
113
how should severe asthma attacks be managed?
if low oxygen sats give high flow oxygen SABA via nebuliser ipratropium bromide can be added if no response to SABA steroid therapy should be given for 3 days 2nd line IV salbutamol - essential to monitor for salbutamol toxicity magnesium sulphate can be considered
114
what are the common causes of pneumonia in different age groups?
Newborn - organisms from the mother's genital tract particularly group B streptococcus, E.coli, klebsiella, staph aureus infants and young children - RSV most common, streptococcus pneumoniae, chlamydia trachomatis Children over 5 - mycoplasma pneumoniae, streptococcus pneumoniae and chlamydia pneumoniae ar the main causes at all ages mycobacterium tuberculosis should be considered
115
what are the clinical features of pneumonia in children? (3) and what would examination show? (5)
fever and difficulty breathing = the most common presenting symptoms usually preceded by an upper RTI cough lethary poor feeding unwell child localised chest, abdo or neck pain is a feature or pleural irritation and suggests bacterial infection examination will show signs of resp distress, desaturation and cyanosis tachypnoea, nasal flaring and chest indrawing end inspiratory coarse crackles over the affected area classical signs of consolidation - dull percussion, decreased breath sounds and bronchial breathing oxygen sats may be decreased
116
what are the investigations you would perform for pneumonia?
CXR - may confirm diagnosis but cannot differentiate between viral and bacterial Nasopharageal aspirate - viral immunoflourenence identify viral causes blood tests - FBC and acute phase reactants blood cultures
117
how should you treat pneumonia in children?
first line treatment is amoxicillin for all children with pneumonia for children under 5 alternatives include co-amoxiclav for tyical pneumonia (steptococcus oneumoniae) or clarithromycin for atypial pneumonia (mycoplasma pneumoniae and chlamydia trachomatis) if over 5 years - consider macrolide (clarithromycin) if mycoplasma or chlamydia is suspected, if staoh aureus suspected the consider macrolide or flucloxacillin with amoxicillin severe pneumonia: co-amoxiclav , cefotaxime or cefuroxime IV
118
when would you consider admission for pneumonia? (4)
most cases can be managed at home, admission is indicated if: - oxygen sats less than 92% - severe tachypnoea - difficulty breathing - grunting - apnoea - not feeding
119
what is cystic fibrosis?
an autosomal recesive disorder which leads to a defect in the CF transmembrane receptor protein which causes defective ion transport in exocrine glands. causes thickening of respiratory mucus - the lungs therfore prone to inadequate mucociliary clearance, chronic bacterial infections
120
what is the screening for CF?
all newborn babies are screened for CF | blood spot analysis on the Gurthrie card
121
what are the presentations of CF at different age groups (6)
infancy - meconium ileus, prolonged neonatal jaundice Childhood - recurrent lower respiratory chest infection, bronchiectasis, poor appetite, rectal prolapse, nasal polyps, sinusitis Adolescence: bronchiectasis, DM, cirrhosis and portal hypertension, distal intestinal obstruction, pneumothorax, haemoptyysis, male infetiltiy short stature delayed puberty female subfertility weight loss or poor weight gain 90% of children with CF have pancreatic exocrine insuficiency (lipase, amylase and proteases) resulting in maldigestion and malabsorption
122
how do you diagnose CF? (4)
sweat test - abnormally high sweat chloride immunoreactive trypsinogen test (new born screening) CXR glucose tolerance test LFT faecal elastase to assess pancreatic function genetic analysis
123
what could cause a false positive sweat test for CF ? (3)
``` malnutrition adrenal insufficiency glycogen storage disease nephrogenic diabetes insupidus hypothyroidism G6PD ectodermal dysplasia ```
124
How do you manage CF? (6)
MDT approach annual review in specialist center For ongoing respiratory disease: twice daily physiotherapy to clear airway secretions and postural drainage, inhaled bronchodilator (salbutamol), inhaled mucolytic (dornase alpha), if they have chronic pseudomonas infection give inhaled tobramycin GI disease: monitoring and optimising nutrion pacreatic insuficiency - pancreatic enzyme replacement (pancreatin), H2 antagonist or PPI (ranitidine or omeprazole), fat soluble vitamin supplementation (A, D, K and E) liver disease - ursodeoxycholic acid
125
What is epiglottitis? What causes it? What age group is it most common in?
A cellulitis of the supraglottis it is a life threatening emergency due to high risk of respiratory obstruction caused by haemophilus influenzae type B (HiB) - Hib immunisation has led to a 99% reduction in the incidence most common in the age group 1-6 years but can affect all age groups **** important to distinguish between epiglottitis and croup
126
what are the symptoms of epiglottitis? (5)
``` the onset is very acute/rapid high fever and generally unwell - toxic looking child stridor drooling of saliva increasing resp difficulty over hours sore throat tripod position ```
127
what investigations would you perform for suspected epiglottitis? (3)
lateral neck radiograph (thumb print sign) FBC blood cultures Direct visualisation by senior (diagnosis)
128
how do you treat epiglottitis? (3)
secure airway and supplemental O2 IV Abx (cefotaxime or ceftriaxone or ampicillin or clindamycin) dexamethasone can be added to reduce inflammation inhaled adrenaline - if upper airways are compromised intubation once stable - oral Abx - amoxicillin or cefaclor
129
what are the differences in presentation between croup and epiglottitis? (5)
Epiglottitis is rapid onset (hours), croups is days croups has coryza prior to onset croup has barking cough, epiglottitis usually has no cough croup they can drink/feed epiglottitis will have drooling saliva epiglottitis will have a high fever croup has rasping stridor epiglottitis is a soft stridor in epiglottitis their voice will be weak or silent
130
what can cause stridor in children? (5)
Croup – harsh loud stridor (mostly viral, 6 months to 6 years of age, harsh loud stridor, coryza, mild fever and hoarse voice) Epiglottitis – (caused by H. influenzae type b, rare since Hub immunisation Bacterial tracheitis – harsh loud stridor, higher fever, toxic Inhaled foreign body – chocking on peanut, sudden onset of cough or respiratory distress Laryngomalacia – recurrent or continuous since birth.
131
what is surfactant deficient lung disease?
AKA respiratory distress sydrome caused by inadequate production of surfactant type 2 from the pneumocytes in the lungs low surfactant leads to alveoli collapsing on expiration and this increases the energy needed for breathing
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what are the risk factors for surfactant deficient lung disease? (3)
``` Premature maternal DM at term multiple pregnancy fam history of RDS csection hypothermia male>female ```
133
what are the causes of secondary surfactant deficiency? (3)
* Intrapartum asphyxia * RTI: GB-BHS pneumonia * Meconium aspiration pneumonia * Pulmonary haemorrhage * Pulmonary hypoplasia * Congenital diaphragmatic hernia
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what is the presentation of surfactant deficient lung disease? (5)
``` Early signs • Tachypnoea >60 • laboured breathing • grunting • recession: subcostal and intercostal • Nasal flaring • Cyanosis • Diminished breathing sounds Late signs • Fatigue • Apnoea • Hypoxia ```
135
how do you manage surfactant deficient lung disease?
1. surfactant replacement therapy: endotracheal tube 2. antibiotics 3. O2 : SaO2 85-93% • Mild: via a hood • Moderate: CPAP • Severe : endotracheal tube 4. Nutrition • If the infant is stable: IV nutrition: amino acids and lipids • If resp status is stable: small volume of gastic feed via a tube
136
what causes whooping cough?
bordetella pertussis
137
what are the symptoms of whooping cough? What are the three phases of whooping cough?
One week of coryza (Catarrhal phase), then the child develops a characteristic paroxysmal or spasmodic cough followed by a characteristic inspiratory whoop (paroxysmal phase). Often worse at night Often vomiting can occur In infants the whoop may be absent, but apnoea may occur at this age Epistaxis and subconjunctival haemorrhage may occur vigorous coughing Paroxysmal phase may last 3-6 weeks and symptoms gradually decrease but may persist for many months (convalescent phase)
138
how is whooping cough diagnosed?
nasal swab | PCR and serology
139
how is whooping cough managed? (3)
under 6 month - admit - notifiable disease - oral macrolide - clarithromycin - household contacts - prophylaxis - school exclusion for 48 hours following commencing antibiotics
140
what are the complications of whooping cough? (3)
subconjunctival haemorrhage pneumonia bronchiectasis seizures
141
how should inhaled drugs be administered in children under 3?
face masks
142
what are the risks associated with long term use of inhaled steroids? (3)
adrenal suppression growth suppression osteoporosis high dose steroids may cause adrenal crisis
143
what are some upper RTI? (3)
``` rhinitis otitis media pharyngitis tonsilitis larygitis Epiglottitis ```
144
what are some lower RTI? (3)
``` bronchitis croup tracheitis bronchiolitis pneumonia ```
145
what can pneumococcus cause/ what is it course of infection?
consolidation of the nasopharynx - -> upper airways mucosa infection - otitis media, sinusitis - ->lower airway mucosal infection - bacterial bronchitis, pneumonia - -> occult septicaemia, pneumonia with septicaemia, meningitis
146
what is pneumonia?
resp disease characterised by inflammation of the lung parenchyma (excluding the bronchi) with congestion caused by viruses, bacteria or irritants
147
what is the bronchiectasis vicious circle hypothesis?
infection --> inflammation --> impaired muco-ciliary clearance --> infection
148
who would be in the MDT team for CF? (5)
``` paediatric pulmonologist physio dietician nurse liason primary care team teacher psychologist ```
149
what are some causes of wheeze in children? (5)
pneumonia, pulmonary oedema, bronchogenic cyst enlarged left atrium compressing left mainstem bronchus chest deformity asthma brochiolitis bronchitis CF polyps airway obstruction - foreign body, mucus, pus, blood
150
what can cause a congenital left to right shunt? | how would they present?
ventricular septal defect patent ductus arteriosus atrial septal defect they present as breathless
151
what can cause right to lefts shunts? | how would they present?
tetralogy of Fallot transposition of the great arteries they would present as blue
152
what are the circulatory changes at birth?
first breath = a fall in resistance to pulmonary blood flow - -> blood flow through the lungs increases six fold - ->this results in a rise in left atrial pressure. - -> mean while the blood returning to right atrium falls as the placenta is excluded from the circulation - -> the changes in the pressure difference causes the foramen ovale to close - the DA will normally close within the first few hours or days of life
153
what are the symptoms (3) and signs (3) of heart failure?
symptoms - breathlessness (particularly on feeding or exertion), sweating, poor feeding, recurrent chest infection signs: poor weight gain or faltering growth, tachypnoea, tachycardia, heart murmur, gallop rhythm, enlarged heart, hepatomegaly, cold peripheries.
154
what usually causes heart failure in the first week of life?
left heart obstruction e.g. coarctation of the aorta *if obstruction is very severe then arterial perfusion may be predominantly by right to left flow of the blood via the ductus arteriosus (duct dependant circulation) - closure of the duct = severe acidosis, collapse and death unless duct patency is restored
155
after the first week of life what is the most common cause of progressive heart failure?
left to right shunt | this eventually causes pulmonary oedema and breathlessness due to decreased pulmonary vascular resistance
156
what happens if a left to right shunt is left untreated?
children will develop Eisenmenger syndrome which is irreversibly raised pulmonary vascular resistance resulting from chronically raised pulmonary arterial pressure and flow. this lead the shunt reversing to a right to left shunt and results in a blue child. If this develops the only surgical option is a heart-lung transplant if available.
157
what might cyanosis in the new-born infant in the new born be due to? (3)
- cardiac disorders - cyanotic congenital heart disease - resp disorders - surfactant deficiency, meconium aspiration, pulmonary hypoplasia - persistent pulmonary hypertension of the new born - failure of the pulmonary vascular resistance to fall after birth - infection - septicaemia from group B streptococcus and other organisms - metabolic disease - metabolic acidosis and shock
158
what are the different types of ASD?
secundum ASD partial/primum ASD
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what are the symptoms of ASD? (2)
often asymptomatic may have recurrent chest infections from the fourth decade they may develop arrhythmias
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what are the signs of ASD? (2)
an ejection systolic murmur best heard at the upper left sternal edge - due to increased flow across the pulmonary valve because of the left-to-right shunt a fixed and widely split second heart sound
161
what investigations would you perform for ASD and what would they show? (3)
CXR - cardiomegaly, enlarged pulmonary arteries and increased pulmonary vascular markings ECG - right bundle branch block Echo
162
how do you manage ASD? (2)
Management options include: Active monitoring (small defects may close on their own) Percutaneous transvenous catheter closure (via the femoral vein) Open-heart surgery
163
what is a small VSD?
smaller than the aortic valve in diameter - up to 3mm
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how would a small VSD present ? what would you hear when auscultating a small VSD? what investigations would you perform and how would you manage one?
often asymptomatic a loud pan-systolic murmur at lower left sternal edge (loud murmur = smaller defect) quiet pulmonary second sound CXR and ECG will be normal echo will demonstrate precise anatomy of defect management - often will close spontaneously
165
what is a large VSD? how would a large VSD present ? what would you hear when auscultating a large VSD? what investigations would you perform and how would you manage one?
- bigger than the size of the aortic valve - symptoms of heart failure with breathlessness and FTT after 1 week old, recurrent chest infections, tachypnoea, tachycardia and enlarged liver from heart failure, active precordium. - there may be a soft or no murmur = large defect - there will be a loud pulmonary second sound from raised pulmonary pressure - CXR - cardiomegaly, enlarged pulmonary arteries, increased pulmonary vascular markings, pulmonary oedema - ECG - biventricular hypertrophy by 2 months of age - ECHO - demonstrated anatomy of defect - Management: diuretic for heart failure (furosemide) often combined with captopril. Surgery should be performed at age 3-6 month
166
what is patent ductus arteriosus?
a form of congenital heart defect generally classed as 'acyanotic'. However, uncorrected can eventually result in late cyanosis in the lower extremities, termed differential cynaosis. connection between the pulmonary trunk and descending aorta usually the ductus arteriosus closes within the first 24 hrs of life due to increased pulmonary flow which enhances prostaglandins clearance more common in premature babies, born at high altitude or maternal rubella infection in the first trimester
167
what are the signs of patent ductus arteriosus? (4)
``` left subclavicular thrill continuous 'machinery' murmur large volume, bounding, collapsing pulse wide pulse pressure heaving apex beat ```
168
how do you manage a PDA?
1st line - IV indomethacin (inhibits prostaglandin synthesis ) - closes the duct in the majority of the cases *if it is associated with another congenital heart defect amenable to surgery then prostaglandin E1 is usefull to keep the duct open until after surgical repair use a percutaneous catheter device closure if baby too small or large duct then use surgical ligation
169
what test can be used in cyanosed infants to test for heart disease?
``` the hypoxia (nitrogen washout) test place them in 100% oxygen for 10 mins and then if right radial artery PaO2 from blood gas remains low then it Is cyanotic congenital heart disease ``` It works on the assumption that if there is right to left shunting in cyanotic heart disease, no amount of oxygenation in the pulmonary circulation will alter the desaturating effect of the shunt. However, if there is a pulmonary defect causing cyanosis this may be corrected by increasing the inspired oxygen.
170
what are the 4 cardinal anatomical features of tetralogy of Fallot?
- ventricular septal defect (VSD) - right ventricular hypertrophy - pulmonary stenosis (right ventricular outflow tract obstruction) - overriding aorta
171
what are the signs and symptoms of TOF? (3)
cyanosis - hypercyanotic episodes ‘tet’ spells a loud harsh ejection systolic murmur in older children there may be clubbing may have tachypnoea
172
what investigations would you perform for TOF and what would they show? (3)
CXR - boot shaped heart ECG - will show right ventricular hypertrophy when older ECHO - will show the cardinal features.
173
how do you manage TOF?
complete surgical repair to close VSD and relieve RV outflow obstruction
174
what is transposition of the great arteries?
the aorta is connected to the right ventricle and the pulmonary arteries are connected to the left ventricle - this means there is two parallel circulation *incompatible with life unless there is a mixing of blood - often there is naturally occurring VSD, ASD, PDA which can achieve mixing short term leads to right to left shunt
175
what are the symptoms of transposition of the great arteries?
neonatal cyanosis usually appears on day 2 when ductal closure leads to reduced mixing of desaturated and saturated blood often a loud, single heart sound
176
how do you manage transposition of the great arteries? (3)
maintain ductus arteriosus with prostaglandin infusion a balloon atrial septostomy all patients will require surgery, arterial switch procedure in the neonatal period
177
what is an AVSD? how does it present how is it managed? What condition is it common in?
atrioventricular septal defect common in down-syndrome may be complete or partial it will present on antenatal USS screening cyanosis at birth or heart failure at 2-3 weeks of life manage heart failure and fix surgically at 3-6 months
178
what is aortic stenosis?
Aortic stenosis is the most common valvular heart disease and the most common indication for valve replacement surgery. It refers to narrowing of the aortic valve, restricting blood flow from the left ventricle to the aorta.
179
what are the symptoms (3) and signs (3) of aortic stenosis?
Symptoms: chest pain, syncope/presyncope, dyspnoea Signs: slow rising pulse, narrow pulse pressure, ejection systolic murmur that radiates to the carotids, thrill
180
How do you manage aortic stenosis and pulmonary stenosis ?
balloon dilatation
181
what are the clinical features of pulmonary stenosis? (3) | what would investigations show?
mainly asymptomatic small number of neonates have critical pulmonary stenosis and have duct- dependant circulation ejection systolic murmur best heard at the upper left sternal edge ejection click there may be a ventricular heave when stenosis is severe CXR - normal or post stenotic dilation of the pulmonary artey ECG - evidence of right ventricular hypertrophy
182
what is coarctation of the aorta?
Coarctation of the aorta is a congenital heart defect in which your baby's aorta (the largest artery in their body) is pinched in or narrowed in one spot. This restricts normal blood flow to their lower body
183
what are the clinical features of coarctation of the aorta? (3)
``` often asymptomatic sometimes when the DA closes the aorta also constricts, causing severe obstruction of the LV outflow systemic hypertension ejection systolic murmur radiofemoral delay ```
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what would you see on CXR and ECG in coarctation of the aorta? (3)
CXR - rib notching due to the development of large collateral intercostal arteries running under the ribs posteriorly to bypass the obstruction, 3 sign - visible notch in the descending aorta at the site of the coarctation ECG- LV hypertrophy
185
how do you manage coarctation of the aorta?
insertion of a stent | sometimes surgical repair is required
186
what is interruption of the aortic arch?
Interrupted aortic arch is a very rare heart defect in which the aorta is not completely developed. There is a gap between the ascending and descending thoracic aorta. In a sense it is the complete form of a coarctation of the aorta. usually VSD is present presentation is with shock in the neonatal period - circulatory collapse with absent femoral pulses and absent left brachial pulse
187
how do you manage an interruption of the aortic arch?
maintain ABC prostaglandin infusion complete correction with closure of VSD and repair of the aortic arch is usually performed within the first few days of life
188
what is hypoplastic left heart syndrome?
underdevelopment of the left side of the heart small or atretic mitral valve left ventricle is diminutive and there is usually aortic valve atresia small ascending aorta circulatory collapse - all peripheral pulses absent sometimes detected antenatally no flow through the left side of the heart, so ductal constriction leads to profound acidosis and rapid CV collapse
189
what is a sinus arrhythmia?
it is normal in children and it detectable as a cyclical change in heart rate with respiration (acceleration during inspiration)
190
what is the most common childhood arrhythmia?
supraventricular tachycardia
191
what are the clinical features of supraventricular tachycardia? (2)
rapid HR between 250-300BPM can cause poor CO and pulmonary oedema it will typically present as heart failure
192
what will an ECG show in supraventricular tachycardia?
narrow complex tachycardia (QRS less than 100ms)
193
management of supraventricular tachycardia (3)
``` circulatory and respiratory support vagal stimulation manoeuvres e.g. carotid sinus massage IV adenosine electrical cardioversion flecainide ```
194
What is congenital complete heart block? What will all children with symptoms require?
rare condition usually related to the presence of anti-RO or anit-LA antibodies in maternal serum - this mothers will either manifest or latent connective tissue disorders the antiboides appear to prevent the normal development of the conduction system in the developing heart with atrophy and fibrosis of the AV node all children with symptoms will require the insertion of an endocardial pacemaker
195
How does long QT syndrome present in children? What is the inheritance of long QT syndrome?
associated with sudden loss of consciousness during exercise, stress or emotion usually in late childhood may be mistakenly diagnosed as epilepsy inheritance is AD
196
what is rheumatic fever?
there is an abnormal immune response to a streptococcal infection usually develops 2-4 weeks following the infection it is usually a pharyngeal infection - then polyarthritis, mild fever and malaise develop
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what is the evidence for a recent streptococcal infection?
raised ASO titre or other streptococcal antibodies positive throat swabs positive rapid group A strep antigen test
198
what are the major (4) and minor criteria (4) for rheumatic fever?
Two major or one major and two minor MAJOR: erythema marginatum - uncommon early manifestation rash on trunk and limbs, Sydenham's chorea - a late feature - involuntary movements and emotional liability, polyarthritis, pancarditis (endocarditis, myocarditis, pericarditis), subcutaneous nodules MINOR: fever, raised ESR or CRP, arthralgia, prolonged PR interval
199
what are the symptoms of chronic rheumatic fever?
the most common long-term damage is mitral stenosis from scarring and fibrosis.
200
How should you manage rheumatic fever? How is recurrence prevented? (3)
Outline of management antibiotics: oral penicillin V anti-inflammatories: NSAIDs are first-line treatment of any complications that develop e.g. heart failure recurrence should be prevented with monthly injections of benzathine penicillin
201
what are risk factors for infective endocarditis? (3)
congenital heart disease rheumatic fever valve disease prosthetic valves IVDU
202
when should you suspect infective endocarditis?
it should be suspected in any child or adult with fever, malaise, raised ESR, unexplained anaemia or haematuria
203
what are the most common causes of infective bacterial endocarditis?
``` streptococcus viridans - linked to poor dental hygiene staphylococcus aureus (common in IVDU) ```
204
what are the clinical signs of infective endocarditis? (7)
205
how should you diagnose infective bacterial endocarditis ?
blood cultures should be taken before starting Abx detailed cross-section echo may confirm diagnosis but will not exclude diagnosis acute phase reactants are raised
206
how should you treat bacterial endocarditis?
high dose IV Abx -Amoxicillin plus gentamicin or vancomycin for a min of 4-6 weeks
207
what are some causes of heart failure in children? (4)
``` large left to right shunt left sided obstructive lesion cardiomyopathy myocarditis endocarditis Kawasaki disease tachyarrhythmias ```
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what are the clinical features of heart failure in children? (5)
``` sweating breathless, tachypnoea, coughing, lung creps poor feeding, poor weight gain and FTT hepatomegaly cardiomegaly tachycardia, gallop heart rhythm ```
209
what are some causes of acyanotic heart disease? (5)
``` VSD ASD PDA pulmonary valve disease coarctation of the aorta aortic stenosis hypoplastic left heart syndrome hypertrophic obstructive cardiomyopathy dextrocardia ```
210
what are some causes of cyanotic heart disease? (2)
tetralogy of fallot transposition of the great arteries tricuspid atresia
211
what are the principle causes of pericardial inflammation? (3)
- Infections (coxsackie B , EBV, strept, TB, toxoplasmosis - connective tissue (RA, rheumatic fever, SLE, sarcoidosis - metabolic - hyperuricaemia, hypothyroidism - malignancy - radiotherapy
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what would an ECG show when there is pericarditis?
213
what are the clinical features of pericarditis? (2)
typically sharp pain which is exacerbated and exaggerated by lying down and relieved by sitting or leaning forward. Pain is often referred to left shoulder
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how is pericarditis managed?
analgesia anti-inflammatory drugs (colchicine, aspirin, ibuprofen) pericardiocentesis for pericardial effusion
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what might myocarditis be due to? (3)
infections Kawasaki drugs - Adriamycin connective tissue disease: SLE, RA, rheumatic fever, sarcoidosis
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what are the classifications of cardiomyopathy?
hypertrophic dilated restrictive
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what are the causes of dilated cardiomyopathy?
inherited secondary to metabolic disease direct result from a viral infection
218
what is GORD?
gastro-oesophageal reflux disease - when there is the inappropriate effortless passage of gastric contents into the oesophagus
219
what are the causes of reflux in infancy? (3)
it is associated with slow gastric emptying, liquid diet, horizontal position, and low resting lower oesophageal sphincter pressure. ``` lower oesophageal sphincter dysfunction (hiatus hernia) may cause reflux increased gastric pressure external gastric pressure gastric hypersecretion of acid food allergy cerebral palsy ```
220
what age group is GORD common in?
common in the first 5 years of life but usually all symptoms clear by 12 months.
221
how does GORD present? (3)
typically develops before 8 weeks vomiting/regurgitation milky vomits after feeds may occur after being laid flat excessive crying, especially while feeding
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what are the complications of GORD? (3)
``` oesophageal stricture barrett's oesophagus (squamous to columnar epithelium) faltering growth anaemia lower resp disease ```
223
how is GORD managed in children?
usually diagnosed clinically nurse infants on a head up slope of 30 degrees thicken milk feeds in infants, small frequent meals, avoid food before sleep, avoid fatty foods, cirtus juices, caffeine and fizzy drinks add drugs if severe - ranitidine or omeprazole
224
what causes pyloric stenosis in children?
idiopathic hypertrophic pyloric stenosis | hypertrophy of the pylorus muscle causing outlet obstruction
225
when does pyloric stenosis usually present?
usually in the third or fourth week of life | ** it is more common in boys
226
what is the presentation of pyloric stenosis in infants?
projectile vomiting, non-bilious, may contain altered blood (coffee ground) or fresh blood from oesophagitis. Vomiting will occur within an hour of feeding and the baby is immediately hungry. If they present early (2nd/3rd week) then vomiting may not be projectile. weight loss constipation dehydration, malnutrition and jaundice are late sings palpable mass in the upper abdomen
227
what tests would you perform to diagnose pyloric stenosis? What would biochemistry show?
test feed - peristalsis seen during feed, the pyloric tumour is usually easiest felt early in the feed or after the baby has vomited US - if tumour cannot be felt, USS will confirm or exclude the diagnosis biochemistry - hypochloraemic, hypokalaemic metabolic alkalosis
228
how is pyloric stenosis managed in children?
rehydrate and correct the alkalosis before surgery IV fluids withold feeds - the stomach should be emptied with an NGT Ramstedt's pyloromyotomy
229
what is Crohn’s disease?
it is a type of inflammatory bowel disease that may affect any part of the GI tract but terminal ilium and proximal colon are commonest sites of involvement bowel involvement is non-continuous (skip lesions)
230
how does crohns disease present? (5)
``` abdominal pain diarrhoea +/- blood/mucus weight loss lethary fever oral lesions perianal skin tag uveitis erythema nodosum ```
231
what investigations would you perform for crohns disease? (5)
FBC - anaemia may be present, leukocytosis is associated with acute or chronic inflammation, thrombocytosis is a useful marker for active inflammation iron studies, B12, and folate there may be hypoalbuminaemia, hypocholesterolaemia, and hypocalcaemia raised ESR and CRP stool sample - to rule out and infectious cause (faecal calprotectin- inflam) endoscopy CT or MRI - helps to localise disease
232
How do you induce and maintain remission in crohns disease?
Glucocorticoids (prednisolone) are generally used to induce remission. Budesonide is an alternative. 5-ASA (mesalazine) are used second line but are not as effective. Azathioprine and mercaptopurine may be used as add on therapy. Methotrexate is an alternative azatioprine. infliximab useful in refractory disease or fistulating disease. Azathioprine or mercaptopurine are used first line to maintain remission. surgical management: local surgical resection for severe localised disease e.g. strictures, fistula, may be indicated
233
what is ulcerative colitis?
a form of inflammatory bowel disease, inflammation always starts at the rectum and never spreads beyond the ileocaecal valve and is continuous.
234
What is the presentation of UC? (4)
``` bloody diarrhoea urgency tenesmus abdominal pain, particularly in the lower left quadrant weight loss growth failure ``` in children it is usually pancolitis where as in adults it is usually confined to the distal colon
235
how is UC managed?
amino salicylates are used to induce remession (mesalazine) oral corticosteroid can also be used more agressive disease may need immunomodulator therapy (azathioprine) to maintain remission if severe - manage in hospital *methotrexate is not recommended in UC
236
how is UC diagnosed? (5)
``` colonoscopy biopsies stool studies FBC ESR CRP barium enema - will show loss of haustrations, superficial ulceration and in long-standing disease - the colon is narrow and short ```
237
what are the viral causes of gastroenteritis? (3)
rotavirus (most common) caliciviruses (norovirus and sapovirus) adenovirus astrovirus
238
what is the presentation of gastroenteritis?
``` vomiting non-bloody diarrhoea cramping abdominal pain low grade fever dehydration ```
239
what are the risk factors for dehydration in gastroenteritis? (3)
- infants under the age of 6 months or those born with a low birth weight - if they have passed more than 6 diarrhoeal stools in the previous 24 hours - if they have vomited three times of more in the past 24 hours - if they have been unable to tolerate/not been offered extra fluids - if they have malnutrition
240
what are the different classifications of dehydration?
mild: (less than 5% loss of body weight): skin turgor may be dcreased, dry mucous membranes, low urine output, HR increased, BP normal, perfusion normal, pale, may be irritable moderate: (5-10% loss of body weight): skin turgor decreased, very dry mucous membranes, oliguric, HR increased, BP may be normal, prolonged cap refil, grey skin colour, lethargic severe: (10-15% loss of body weight): poor skin turgor with tenting, parched mucous membranes, anuric, increased HR, BP decreased, prolonged cap refil, mottled skin, comatose
241
what are the red flag signs of hypovolaemic shock? (3)
appears unwell or deteriorating, altered responsiveness, tachycardia, tachypnoea, skin turgor reduced
242
what is isonatraemic and hyponatraemic dehydration?
Isonatraemic - losses of sodium and water are proportional and the plasma sodium levels remains within a normal range hyponatraemic - if the child with diarrohea drinks large quantities of water, it leads to a fall in plasma sodium - this leads to a shift of water from extra cellular to intracellular compartments which increases cellular volume - may result in convulsions
243
what is hypernatraemic dehydration?
water losses exceeds the relative sodium loss and the plasma sodium concentration increases the extracellular fluid becomes hypertonic with respect to intracellular fluid and this leads to a shift of water into the extracellular space from the intracellular compartments this form of dehydration is hard to see as there is not signs of extracellular fluid delpetion. This type of dehydration occurs when there is high insensible water loss (when water is lost through the skin - high fever or hot dry enviroment) or from perfuse, low sodium diarrhoea. water is drawn out of the brain and cerebral shrinkage within rigid skull may lead to jittery movement, increased muscle tone with hyperreflexia, altered consciousness, seizures and multiple small cerebral haemorrhages
244
how do you treat viral gastroenteritis?
fluids - oral rehydration solution mild dehydration - less than 5% loss of body weight give 50mls/kg plus maintenance fluids moderate (less than 10%) - 100ml/kg plus maintenece if shock add fluid bolus
245
what are some common causes of bacterial gastroenteritis? (4) What age group is it most common in?
it is most common in children under 2 ``` salmonella campylobacter jejuni shigella E. coli clostridium difficile Bacillus cereus ``` sources of infection include contaminated water, poor food hygiene, faecal-oral route
246
what is the presentation of bacterial gastroenteritis? (5)
``` watery diarrhoea vomiting cramping abdo pain fever dehydration electrolyte disturbance malaise blood and mucus in diarrhoea abdo pain may mimic appendicitis or IBD tenesmus ```
247
what are the complications of bacterial gastroenteritis? (3)
``` bacteraemia secondary infections - pneumonia, osteomyelitis, meningitis Reiter's syndrome GBS haemolytic-uraemic syndrome reactive arthropathy haemorrhagic colitis ```
248
what investigations would you perform for bacterial gastroenteritis?
stool +/- culture stool clostridium difficile toxin sigmoidoscopy
249
what are the classical symptoms of appendicitis? (3)
anorexia abdominal pain - initially central but localises to the RIF low-grade fever nausea diminished bowel signs *younger children or children with a retrocaecal/pelvic appendix may present atypically it is uncommon in children under the age of 4 - however if these children do get it, it often presents when perforated
250
what investigations would you order for appendicitis? (3)
FBC - mild neutrophil predominant leukocytosis (increase in WCC) pelvic or abdominal CT USS urinalysis - to rule out other causes
251
how do you treat appendicitis?
appendectomy plus supportive care | IV antibiotics - cefoxitin
252
What is a congenital diaphragmatic hernia? What can this result in?
it is characterised by the herniation of abdominal viscera into the chest cavity due to incomplete formation of the diaphragm - this can result in pulmonary hypoplasia and hypertension which can cause respiratory distress shortly after birth
253
what is the most common type of congenital diaphragmatic hernia?
left-sided posterolateral Bochdalek hernia (85%) | - there is left sided herniation of abdominal contents through the posterolateral foramen of the diaphragm
254
on physical examination what signs would you find suggesting a congenital diaphragmatic hernia? (2)
the apex beat and the heart sounds will be displaced to the right side of the chest wall, with poor air entry to the left side
255
how are congenital diaphragmatic hernias diagnosed?
usually diagnosed on antenatal USS, but the prognosis for the foetus is poor if the diagnosis is not made antenataly and the baby present at birth, clinical finding may include resp distress, scaphoid abdomen and apparent dextrocardia. diagnosis can be confirmed with x-ray
256
how is a congenital diaphragmatic hernia managed? What is the mortality rate and what is the primary reason for this?
initial management: sedation, paralysis, endotracheal intubation and mechanical ventilation with 100% oxygen. NGT placement avoid bag mask valve ventilation after stabilisation the hernia is repaired surgically - however often the more pressing problem is lung hypoplasia - where the pressing of the herniated viscera has prevented the lungs developing - lung hypoplasia =high mortality *only around 50% of newborn survive
257
what is a hiatus hernia and what are the two types of hiatus hernia?
herniation of the stomach into the chest wall through the oesophageal hiatus in the diaphragm sliding rolling
258
how is a hiatus hernia diagnosed?
radiologically by barium swallow test/barium meal
259
what are the features of an inguinal hernia?
a reducible swelling in the groin, often extending to the scrotum more common in boys and preterm babies most commonly on the right side due to later descent of the right testis 15% are bilateral symptoms are rare
260
what is the treatment of an inguinal hernia?
reduce following opioid analgesia and sustained compression. Surgery is delayed for 24-48 hours to allow resolution of oedema. If reduction is impossible, emergency surgery is required because of the risk of strangulation of bowel and damage to the testis
261
what is the definition of constipation?
infrequent passage of stool associated with pain and difficulty or delay in defaecation
262
what are the nice diagnosis criteria for constipation in children under the age of 1 and children older than 1?
children less than 1: - fewer than 3 complete stools per week (type 3 or 4 on bristol stool chart - rabbit dropping or hard large stools) - this does not apply for children who are exclusively breastfed as these infants may not pass stools for several days - distress on passing stools, bleeding associated with stool straining children older than 1: - fewer than 3 complete stools per week, overflowing soiling, rabbit dropping, large infrequent hard stools that can block the toilet - poor appetite that improves with the passage of a large stool, waxing and wining of abdominal pain with passage of stool, straining, anal pain
263
what are some causes of constipation? (6)
``` often idiopathic other causes: low fibre diet lack of mobility and exercise poor colonic motility medications - opiates and anticholinergics anal fissure Hirschsprung's disease hypothyroidism hypercalcaemia sexual abuse UTI ```
264
what is the presentations of constipation? (5)
``` difficult or painful defecation long interval between passing stools faecal incontinence overflow faecal incontinence palpable faecal mass in abdomen otherwise healthy child abdominal distension abdominal pain ```
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what are the reg flag symptoms with constipation? (3)
- failure to pass meconium within 24 hours of life - indicates hirschsprung disease - failure to thrive/grow - indicates hypothyroidism or coeliac disease - gross abdominal distension -> indicated hirschprung disease or other gastrointestinal dysmotility - abnormal lower limb neurology deformity -> lumbosacral pathology - sacral dimple over the natal cleft, over the spider naevus, hairy patch, central pit or discoloured skin -> spina bifida - abdnormality of appearance or postion of anus --> abnormal anatomy - bruising -> sexual abuse - fistulae, abscesses or fissures -> perianal crohn disease
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how do you treat constipation? (3)
dietary modification (increase fluids and fibre) start with a osmotic laxative (lactulose/ movicol) add a stimulant laxative (senna) if they are over one year of age a stool softener can be added - macrogol laxitive - polyethylene glycol lus electrolytes * if they are under 4 years old had have faecal impactation a stimulant laxative should not be used occasionally retention is so severe that evacuation is only possible using enemas or by manual evacuate under an anaesthetic
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what is Hirschsprung disease?
the absence of ganglionic cells from the myenteric plexus (Auerbach’s plexus) and submucosal plexus of part of the large bowel results in a narrow, contracted segment. The abnormal bowel extends from the rectum for a variable distance proximally, ending in a normally innervated dilated colon. in most cases it is confined to the rectum or sigmoid - short segment disease however sometimes it involves the entire colon - long segment disease
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how do hirschsprung's disease present?
usually withing the first few days of life with intestinal obstruciton - failure to pass meconium in the first 24 hours later abdominal distension and later bile stained vomiting develop * sometimes children with short segment disease will represent later on in childhood with chronic constipation.
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how is hirschsprung's disease diagnosed?
abdominal x-ray will show intestinal obstrucion anorectal manometry or barium studies may be useful in giving the surgeon an idea of the length of the aganglionic segment but are unreliable for diagnostic purposes rectal biopsy will show no ganglionic cells in the submucosa
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who is hirschsprung's disease common in?
male and down syndrome
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How is hirschsprung's disease managed?
Initially, bowel irrigation/rectal washouts management is surgically, initially colostomy followed by anastomosing normally innervated bowel to the anus (pull-through procedure)
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what is the most important complication of hirschsprung's disease? What toxin is it associated with and what is the mortality rate?
hirschsprung's enterocolitis - a dramatic gastroenteric illness characterised my abdominal distension, bloody watery diarrhoea, circulatory collapse and septicaemia. usually associated with clostridium difficile toxin in the stools - mortality is 10%
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what is coeliac disease?
autoimmune disease triggered by dietary gluten peptides | is an enteropathy due to lifelong intolerance to gluten
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what part of gluten causes coeliac disease?
the gliadin fraction of gluten provokes a damaging response in the proximal small intestine mucosa
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what are the risk factors for coeliac disease? (3)
``` a positive family history type 1 diabetes down syndrome IgA deficiency autoimmune thyroid disease ```
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how does coeliac disease present?
the classical initial features include: - pallor - diarrhoea - pale, bulky floating stools - anorexia - failure to thrive - irritibilty later there is apathy, gross motor developmental delay, ascites, peripheral oedema, anaemia, delayed puberty, arthralgia, hypotonia, muscle waisting, specific nutrtional disorders
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how is coeliac disease diagnosed?
often is it diagnosed on screening of children at increased risk diagnosis suggested by positive serology, conformation depends upon the demonstration of mucosal changes - jejunal biopsy showing subtotal villous atrophy, increased intraepithelial lymphocytes, crypt hypertrophy -anti-endomysial IgA antibodies - tissue transglutaminase IgA antibody - anti-gliadin antibodies
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how do you manage coeliac disease?
gluten free diet | calcium and vitamin D deficiency
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how do you manage a coeliac crisis? (3)
rehydration correction of electrolyte abnormalities corticosteroids
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what is failure to thrive?
suboptimal weight gain in infants and toddlers growth falls away from standardized wight or height centile weight is the most sensitive indicator in infants and young children, height is the best indicator in older children *under stress - head circumfrance growth is more preserved than linear growth
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what are the classifications of failure to thrive?
mild - falls across two centile lines | severe - falls across three centile lines
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sometimes after birth the infants birth may drop, what does this mean?
birth weight reflects intrauterine enviroment - it is a poor guid to the childs correct genetic potential and weight may naturally fall until the correct level is attained.
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what are some causes of failure to thrive?
usually classified as organic or non-organic organic include: impaired suck/swallow - oro-motor dysfunction, neurological disorder e.g. cerebral palsy, chronic ilness, malabsorption, inadequate retention - vomiting or severe GORD, failure to utilise nutrients , increased requirements - thyrotoxicosis non-organic - broad spectrum of psychosocial and enviromental deprivation - neglect, socioeconomic deprivation, mothers poor mental health
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What is marasmus?
severe macronutrient malnutrition
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what is Kwashiorkor?
severe protein malnutrition where there is generalised oedma as well as wasting
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what measurements do WHO reccomend for nutritional status?
weight for age (a measurement of wasting and an index of acute malnutrition) mid upper arm circumference height for age - a measurment of stunting and an index of chronic malnutrition
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What are some signs of kwashiorkor? (5)
bilateral pitting oedema a flacky-paint skin rash with hyperkeratosis (thickened skin) and desquamation distended abdomen and enlarged liver angular somatitis hair which is sparse and depigmented diarrhoea, hypothermia, bradycardia and hypotension low plasma albumin, potassium, glucose and magnesium
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how would you treat kwashiorkor?
uncomplicated: community based therapy with ready to use therapeutic food and also a broad spectrum antibiotic - amoxicillin complicated: empirical antibiotic therapy (gentamicin and ampicillin) vitiman A supplementation shock - oxygen and fluids dehydration - rehydration solution for malnutrition (ReSoMal) hypoglycaemia - supplemental glucose or sucrose correct electrolyte imbalance hypothermia - gentle waming - especially at night
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what is intussusception?
common cause of intestinal obstruction in young children and is defined as the prolapse of one part of the intestine into the lumen of the adjoining distal part.
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what is the most common region for intussusception to occur and at what age does it commonly occur?
the ileocaecal region | most commonly occuring in infants aged between 3 and 12 months
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What is the presentation of intussusception? (4)
paroxysmal severe colicky pain and pallor, during episodes the child becomes pale they initially recover between painful periods but subsequently become increasingly lethargic Inconsolable crying During paroxysm infant will characteristically draw knees up vomiting red current jelly stool (late sign) Sausage-shaped mass in RUQ
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what investigations would you perform for intussusception?
x ray USS - will show target sign/doughnut sign diagnostic enema
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how do you manage intussusception?
fluid resuscitation unless there are signs of peritonitis, contrast enema reduction should be tried first antibiotics should be given - clindamycin and gentamicin if fails or contraindicated surgical reduction will be required
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What is Meckel's diverticulum?
Meckel's diverticulum is the most common congenital anomaly of the gastrointestinal tract. It results from incomplete obliteration of the vitelline duct leading to the formation of a true diverticulum of the small intestine contains ectopic ileal, gastric or pancreatic mucosa occurs in 2% of the population is 2 feet from the ileocaecal valve is 2 inches long
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how does Meckel's diverticulum present? (3)
usually asymptomatic abdominal pain which may mimic appendicitis rectal bleeding intestinal obstruction
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what investigations would you consider for Meckel's diverticulum? Which is most useful for diagnosis?
FBC technetium scan - most useful to diagnose meckel's diverticulum USS abdominal Xray
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how do you manage meckel's diverticulum?
only treat if symptomatic | excision of the diverticulum
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what is toddlers diarrhoea?
chronic non-specific diarrhoea that occurs from 6 months to five years stools vary in consistency and often contain undigested food affected children are often well and thriving and there are no precipitating dietary factors
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how do you treat toddlers diarrhoea?
reassurance, dietary (increase fat intake, normalise fibre intake, reduce milk, fruit juice and sugary drink intake), loperamide (Imodium) may sometimes be needed.
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What is infant colic?
a common set of benign symptoms seen in young children typically occurs in infants less than three months characterised by excessive cry and pulling up of the legs which is often worse in the evening often accompanied by excessive flatus occurs in upto 40% of infants and usually the cause is unknown if it is persistant then it may be due to cow's milk protein allergy or gasto-oesophageal reflux
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what is biliary atresia?
is a progressive idiopathic, necroinflammatory process that may involve a segment or the entire biliary tree. there is destruction or absence of the extrahepatic biliary tree and intrahepatic biliary ducts
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what are the features of biliary atresia? (3)
neonatal jaundice babies have a normal birth weight but fail to thrive as disease progresses pale stools and dark urine bruising - due to vitamin k deficiency related to chronic cholestasis hepatomegaly - not until disease has progressed, splenomegaly will often develop secondary to portal hypertension there is obstruciton of the bile ducts which causes bile to go to the liver and cause increase of conjugated bilirubin in the blood
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how is biliary atresia diagnosed? (3)
serum total and conjugated bilirubin (high) prothrombin time, INR FBC - in advanced disease - low platelets and low WBC LFTs abdominal USS - will demonstrate contracted or absent gallbladder liver biopsy will show extrahepatic biliary obstruction - although features may overlap with neonatal hepatitis
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How is biliary atresia treated?
kasai procedure AKA hepatoportoenterostomy - although even when successful can progress to cirrhosis and portal hypertension
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What is wilson's disease? What gene is mutated and what chromosome is this located on? | what is it caused by?
an autosomal recessive disorder caused by a defect in the ATP7B gene located on chromosome 14 reduced synthesis of ceruloplasmin (the copper binding protein) and defective excretion of copper in the bile, which leads to an accumulation of copper in the liver, brain, kidney and cornea.
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how does wilson's disease present? (3)
- Kayser Fleischer rings - blue nails - Hepatitis/liver cirrhosis - Neuro and psych (basal ganglia degeneration)
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how do you diagnose wilsons disease?
low serum ceruloplasmin LFTs 24 hour urine copper liver biopsy - elevated liver copper Genetic testing
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how do you treat wilson's disease?
with penicillamine or trientine - both promote urinary copper excretion zinc - to reduce copper absorption can be fatal from hepatic complications if left untreated
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What are choleductal cysts?
cystic dilations of the extrahepatic biliary system
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how do choleductal cysts present? (4)
25% present in infancy with cholestasis, in the older age group they present with abdominal pain, a palpable mass and jaundice or cholangitis
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how do you diagnose and treat choleductal cyst?
diagnosis with USS or radionuclide scanning | treatment is with surgical excision of the cyst
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List 5 red (high risk) signs/symptoms of serious according to the nice traffic light system in under 5s.
- Tachypnoea >60 - Grunting - Pale/mottled/blue - Looks ill to a healthcare professional - Weak, high-pitched or continuous cry - Age <3 and temp >38 - Non-blanching rash - Focal seizures - Neck stiffness - Moderate or severe chest indrawing