Paediatrics Flashcards
Is bronchiolitis an upper or lower RTI?
Lower
Most common viral cause of bronchiolitis
RSV
Age group affected by bronchiolitis
Age 1-9 months
RF for bronchiolitis
- Brest fed <2 months
- Smoke exposure
- Siblings
- Chronic lung disease due to prematurity
Bronchiolitis pathophysiology
- Proliferation of goblet cells –> excess mucus production
- Inflammation, bronchiolar constriction
- Lymphicytes –> submucosal oedema
- Mucus, oedema and increased cells in bronchioles –> hyperinflation, increased airway resistance, atelectasis and VP mismatch
S+S of bronchiolitis
- Coryzal Sx precede cough and breathlessness
- Dry wheezy cough
- Cyanosis
- Tachypnoe and tachycardia
- Recession
- Hyperinflation
Ix bronchiolitis
- Swabs
- Urine and blood if pyrexic
- Examination
When to admit with bronchiolitis
- Apnoea
- <92%
- <70% normal drinking volume
- Severe resp distress
Bronchiolitis Mx
- Supportive
- Oxygen
- Fluids if dehydrated
- CPAP if struggling to breathe
Croup
Common viral childhood illness
Age of croup
6 months to 6 years
Most common croup organism
Parainfluenza virus
S+S croup
- Few days onset
- Coryza preceding
- Severe barking cough
- Harsh rasping stridor
- Worse at night
- Temperature
Ix croup
CLinical diagnosis
Mx croup
- All children with mild, moderate or severe - single dose or oral dexamethasome
- Can be managed at home if mild
- Severe upper airway obstruction = nebulised epinephrine with oxygen facemask
mild croup
occasional barking cough
no audible stridor at rest
no recession
moderate croup
Frequent barking cough
Audible stridor at rest
- Retraction at rest
Severe croup
Frequent cough
Priminent inspiratory stridor at rest
Sternal wall retractions
agitated child
Neonates pneumonia organisms
GBS
E coli
Klebsiella
S aureus
Infants pneumonia organisms
S pneumoniae
Chlamydia
School age oneumonia causes
S pneumoniae
S aureus
GAS
M pneumoniae
Intussusception definition
Invagination of proximal bowel into distal segment
S+S intussusception
- Paroxysmal severe colicky pain with pallor
- Pale around mouth, draw up legs
- Recovery but increased lethargy between episodes
- Vomit may be bile stained
- Sausage shaped palpable mass
- Redcurrant jelly = blood stained mucus
Mx intussucpetion
Fluid resus
Air insufflation
Surgery
Pyloric stenosis S+S
Non bilious vomiting after feed, increasing in frequency and forcefullness until projectile
- Keep feeding
- Gastric peristalsis
-Pyloric mass = palpable during feed in RUQ
Pyloric stenosis Ix
- Test feed with NG tbe to aspirate stomach and exam
- USS
- hypochloremic hypokalaemic metabolic alkalosis
Mx pyloric stenosis
- Fix acid base electrolyte imbalances before surgery
- Pyloromyotomy
GORD definition
Involuntary passage of gastric contents into the oesophagus
Aetiology GORD
functional immaturity of lower oesophageal sphincter = inappropriately relaxed
RF for GORD
Prematurity
CP
Obesity
HH
S+S GORD
- Faltering growth from severe vomiting
- Oesophagitis
- Aspiration, wheezing, hoarseness
- Dystonic neck posturing
- Apnoea
Ix GORD
- Ph monitoring
- Endoscopy
- Barium swallow
Mx GORD
- Feed thickening
- PPI
- Antacid, H2 blocker
- Fundoplication
Kawasaki definition
Systemic vasculitis with a predisposition to involving coronary arteries
Kawasaki ep
- Japan
- 6months - 4YO
- Peak at end of 1st year
Diagnostic criteria Kawasaki
Fever >5 days and 4/5 of
- Bilateral, bulbar, non purulent conjunctivitis
- Changes in lips/oral mucosa = cracked, strawberry tongue, erythema
- Changes in extremities = Oedema, erythema, desquamination
- Polymorphous rash
- Cervical lymphadenopathy
Kawasaki associated features
- Urethritis
- Arthralgia and arthritis
- Aseptic meningitis
- D+V
- Congestive HF
- Leucocytosis
Ix Kawasaki
- CLinical findings
- High inflam maekers
- Platelet count rises in 2nd week
Mx kawasaki
- IVIG 2g/kg 12hr apart
- IV methylprednisolone and infliximab
- Aspirin
- Antiplatelet agents of risk of thrombus
- Cardiology follow up
Measles features
- Temperature
- Rash = behind ears to body
- Kolpik spots
- Conjunctivitis and coryza
- Cough and malaise
Measles treatment
- Supportive
- Immunocompromised = ribavirin
Nephrotic syndrome definition
- Proteinuria, hypoalbuminaemia, oedema
Nephrotic pathophysiology
- Podocytes flattened so allow leaking
S+S nephrotic syndrome
Oedema = initially on waking, periorbital
- Ascites, labial and scrotal swelling
- Pleural effusions and breathlessness
Nephrotic Ix
- Urinalysis
- Microscopy
- Serum albumin
- U+E/creatinine
Nephrotic Mx
- Oral corticosteroids (60mg/m2 per day pred) –> 4 weeks change to 40 on alternate days
- Resistant = diuretics, salt restriction, NSAIDs
Nephrotic indications for biopsy
- <12 months or >12 years
- Increased BP
- Macroscopic haematuria
- Impaired renal function
- Decreased C3/C4
- Failure to respond after 1 month daily steroid therapy
what direction does blood flow in VSD
Left to right
- pressure in LV greater than RV so L to R
S+S VSD
- Small = asymptomatic
- Pan systolic murmur lower left sternal edge
- HF after 1 week if large (diuretics and captopril)
- Tachycardia, pnoea and hepatomegaly
VSD radiograph findings
- Cardiomegaly
- Large pulmonary arteries
- Increased pulmonary vascular markings
What direction is the shunt in transposition of the great arteries
- Right to left
- Aorta connected to RV and PA to LV
- Blue blood therefore returned to body and pink blood to lungs
What direction is shunt in TOF
- Right to left
4 cardinal features of TOF
- Large VSD
- Overriding aorta
- Right ventricular hypertrophy
- Sub pulmonary stenosis causing RV outflow tract obstruction
S+S TOF
- Cyanosis
- Paroxysmal hyper cyanotic spells
- Ejection systolic murmur
Radiograph findings TOF
- SMall heart
- Uptilted apex
- Pulmonary artery bay
- Oligaemic lung fields
What to do if a hypercyanotic spell >15 minutes
- Sedation
- IV propranolol
- Bicarbonate
- Knees to chest position
Management of cyanosed neonate
- Prostaglandin E infusion 5ng/kg per minute for ductal patency
- ABCDE
Definition of rheumatic fever
Multisystem autoimmune response to a group A strep infection
Major criteria for RF
- Subcutaneous nodules
- Erythema marginatum
- Chorea (sydenham)
- Migratory arthrotos = ankles, knees, wrists
- Carditis
Minor criteria for RF
- Fever
- Polyarthralgia
- Raised CRP/ESR
- Prolonged PR
need 2 makor or 1 major and 2 minor
Rheumatic Fever Mx
- NSAIDs
- Glucocorticoids if severe carditis
- Penixillin
- Assess for emergency valve replacement
Direction of shunt in PDA
- Left to right
- Flow of blood from aorta to PA following fall in PV resistance after birth
S+S PDA
- Continuous murmur below left clavicle
- Collapsing/bounding pulse
- If large = poor growth, feeding difficulty, resp difficulty, tachypnoea
- Thrill/gallop
Pathological triad required in infective endocarditis
- Endothelial damage
- Platelet adhesion
- Microbial adherence
S+S IE
- Sustained fever, malaise, raised ESR, unexplained anaemia or haematuria = suspect
- Murmur/changing cardiac signs
- Anaemia and pallor
- Nail signs
- Necrotic skin lesions
- Splenomegaly
- Neuro signs from cerebral infarction
Major Dukes criteria
- +ve blood culture = 2 seperate
- Evidence of endocardial involvement = +ve echo fidnings
Minor dukes criteria
- Predisposition
- FEver
- Vascular phenomena
- Immunologic phenomena
- Microbiological evidence
- ECHO
IE treatment
- High dose enicillin and aminoglycoside
- 6 weeks OV
Causes of HF in neonates
- Hypoplastic left heart syndrome
- Critical aortic valve stenosis
- Severe aorta coartctation
-Interruption aortic arch
Causes HF in infants and older
- VSD
- ASD
- Persistent PDA
- Eisenmenger
RHD - Cardiomyopathy
S+S HF
- Breathless on feeding or exertion
- Sweating
- CHest infections
- Poor gain
- Tachys
- Murmur and gallop
- Hepatomegaly
- Cool peripheries
HF Mx
- Underlying cause
- Oxygen
- Diet
- Diuretics
- ACEi
- Resp support
- Inotropic support
Patho of complete AVSD
- L to R shunting
- Excessive pulmonary blood flow= HF
Patho partial AVSD
- L to R at ASD level
- Volume overload of RA and RV
Aortic stenosis
- AV leaflets partly fused together = restrictive exit from LV
- ES murmur UR sternal edge
- Carotid thrill
- Slow rising pulses
- Severe = reduced exercise tolerance, chest pain, syncope
>64 = balloon valvotomy
Pulmonary stenosis
-Restrictive exit from RV
- ES at UL sternal edge
- Severe = RV heave
- >64 = transcatheter balloon dilatation
Direction of ASD
- L to R
- Septum between left and right atrium nor formed completely
S+S ASD
= Recurrent chest infections
- Srrhythmia
- Palpitation, fatigue, syncope in older
- ES murmur
- Fixed split 2nd HS
HSP definition
Small vessel non-granulomatous IgA leukocytoclastic vasculitis
RF HSP
- URTI
- Winter
- 2-11
HSP patho
Circulating IgA levels increase and IgG synthesis disrupted. IgG and A produce complexes that activate complement and are deposited in affected organs
HSP S+S
- Maculopapular purpuric palpable rash = legs, buttock, arms- Trunk spared
- Oedema
- Abdo colic pain (haem and melaena)
- Arthralgia
- Macrscopic haematuria
- Severe = intussuception
HSP Tx
- Steroids
- Benign and self limiting = most recover in 8 weeks
HTN Tx
1 = A drugs ACEi or ARB
2 = A drug plus BB or CCB or diuretics
3 = triple therapy = ACD or BCD
Glomerulonephritis definition
Acute renal failure due to damage/injury of glomeruli
Causes GN
- Postinfectious
- Vasculitis
- IgA nephropathy
- Goodpastures
S+S GN
- HTN –> seizures
- Oedema
- Reduced UO and volume overload
- Haematuria and proteinuria
Ix GN
- Urine dip
- Microscopy = RBC and protein casts
- USS
Mx Gn
- Treat hyperK, HTN, acidosis, an hypoca
Poststrep GN
- Throat or skin infection
- Low complement C3 levels return normal after 4w
- Culture to prove
IgA GN
- Macroscopic haematuria
- URTI
Alport syndrome
- Abnormalities of collagen in BM
- X linked recessive
- Nerve deafness and ocular defects
Triad for nephrotic
- Heavy proteinuria
- Low plasma albumin
- Oedema
S+S nephrotic
- Initial periorbital oedema
- Pitting
- Ascites, labial and scrotal swelling
- Pleural effusions and breathlessness
Ix nephrotic
- Urinalysis
- Microscopy (haem)
- Serum albumin
- U+E, creatinine
Mx nephrotic
- Pred 60mg/m2
- After 4 weeks reduce to 40 on alternate dats
- No response = biopsy
- Steroid resistant = diuretics, salt restriction, ACEi, NSAID
- Diuretics
- Frequent relapse = levamisole, mycophenolate, tacrolimus, rituximab
Indications for biopsy in nephrotic
- <12 months or >12 years
- Increased BP
- Macro haem
- Impaired renal function
- Decreased C3 and 4
- Failure to respond after 1 months daily steroids
Predisposing causes renal calculi
- UTI
- Structural abnormalities
- Metabolic abnormalities
Vesicoureteric reflux
Ureters displaced laterally and enter directly into bladder rather than at an angle
Long term impact vesicoureteric reflux
- Urine returning to bladder from ureters after voiding = incomplete empyting = infection
- Pyelonephritis
- Bladder voiding rpessure = transmitted to renal papillae = renal damage
Pre renal AKI
- Most common children
- Hypovolaemia
- HF
- Circulatory failure
- Urinary Na <10mmol, FeNa <1% and osmolality >500
Renal AKI
- Salt and water retention
- Vascular
- GN
- pyelonephritis
AKI Ix
- USS
- Urine biochemisty
- Coag screen
- Cultures
Mx AKI
- Pre = fluid replacement and circulatory support
- Renal = restrict fluids, diuretic
- Post = nephrostomy, surgery, catheter
When dialysis
- Failure of conservative Mx
- HyperK
- HypoNa or hyper Na
- Pulmonary oedema or sever HTN
- Severe metabolic acidosis
Triad of HUS
- Microangiopathic haemolytic anaemia
- Thrombocytopenia
- AKI
HUS S+S
- D+V = bloody
- Rectal prolapse
- CNS distrubance
- DM
- CM
Mx HUS
- Eculizumab
- Early supportive therapy and dialysis
Colic
- Inconsolable crying
- Drawing up knees
- Excessive wind
- Evening
- Benign
- > 2 weeks = cows milk allergy
Toddlers diarrhoea
- ‘Peas and carrots’
- Well and thriving children
- Adequate fat and fibre
Whooping cough
- Bordetella pertussis
- 1 week of coryza develop paroxysmal or sporadic cough
- Inspiratory whoop
- Night worse
- Vomiting
- Red or blue in face and mucus
- 3-6 weeks
- PCR = marked lymphocytosis on blood film
- Immunisation
polio
- most asymptomatic
- aseptic memingitis
- <1% paralytic polio
Diphtheria
- Local disease with membrane formation affecting nose, pharynx or systemic disease with myocarditis
Slapped cheek
- Erythema infectiosum
- viraemic phase of fever, malaise, headache and myalgia
- rash on face turns to lace like maculopapular rash on trunk and limbs
Candida
- May cause and often complicates napkin rashes
- Erythematous
- Skin flexures and may be satellite lesions
- Topical antifungal
Breath holding episodes
- Toddler
- Precipitated by anger
- Goes blue then limp
- Rapid recovery
Reflex anoxic seizures
- Toddler
- Precipitated by pain
- Stops breathing
- Goes pale
- Brief seizure
- Rapid recovery
Juvenile myoclonic epilepsy
- Myoclonic seizures shortly after waking
- Throwing drinks or cornflakes
West syndrome
- Infantile spasms
- 6 months age
- Clusters of full body spasms
- Prednisolone and vigabatrin
Primary adrenal insufficiency
- Addison’s disease
- Adrenal glands damaged = reduced secretion of cortisol and aldosterone
Secondary adrenal insufficiency
- Inadequate ACTH stimulating adrenal glands = low levels of cortisol released
- Loss or damage to pituitary gland
Tertiary adrenal insufficiency
- Inadequate CRH release by hypothalamus
- Long term oral steroids cause hypothalamus suppression
Adrenal insufficiency S+S babies
- Lethargy
- Vomiting
- Poor feeding
- Hypoglycaemia
- Jaundice
- Failure to thrive
S+S adrenal insufficiency older children
- N+V
- Poor weight gain or weight loss
- Reduced appetite
- Abdo pain
- Muscle weakness/cramps
- Developmental delay
- Bronzed skin (addisons)
Addisons blood results
- Low cortisol
- High ACTH
- Low aldosterone
- High renin
Secondary adrenal blood results
- Low cortisol
-Low ACTH - Normal aldosterone
- Normal renin
Adrenal insufficiency Ix
- Short synacthen test
Mx adrenal insufficiency
- Hydrocortisone
Adrenal crisis
- Reduced consciousness, hypotension, hypoglyc, hypona, hyperka
- IV steroids and fluids
- Correct hypo
presentation of growth hormone deficiency
- Micropenis
- Hypoglycaemia
- Severe jaundice
- Poor growth
- Slow development of movement and strength
- Delayed puberty
undescended testes
- 4% at birth
- Preterm more common
- Retractacile = can be manpulated but then retracts
- Palpable = can feel but not manipulate
- Impalpable = no testis felt
Ix = USS, measure testosterone after HCG injections, laparosciopy
Mx = surgery
testicular torsion
- Atypical presentation if young with lower or inguinal abdo pain of sudden onset
- Surgical exploration mandatory
Definition haemolytic disease of new-born
- Caused by incompatibility between rhesus antigens on surface of RBCs of mum and foetus
- Mum Rh- and baby Rh+. 1st pregnancy mum will become sensitised to RhD antigens so subsequent pregnancies = anti D abs cross placenta = haemolysis = anaemia and high bilirubin levels
- DCT
Microcytic anaemia causes
Thalassaemia
Anaemia chronic disease
Iron def
Lead poisoning
Sideroblastic
TAILS
Thalassaemia definition
- A thal = defect in A globin chains
B thal = defect in B globin chains - Autosomal recessive
Why is there a susceptibility to fractures in thalassaemia?
- bone marrow expands to produce extra RBCs to compensate for chronic anaemia
- Causes susceptibility
S+S thalassaemia
- Microcytic anaemia
- Fatigue and pallor
- Jaundice
- Gallstones
- Splenomegaly
- Pronounced forehead
- Poor growth
Thalassaemia diagnosis
- FBC = microcytic anaemia
- Hb electrophoresis
- DNA test
Thalassaemia iron overload Sx
- fatigue
- liver cirrhosis
- infertility
- impotence
- HF
- DM
- arthritis, OP and joint pain
Mx alpha thalassaemia
- Monitor FBC
- Monitor complications
- Blood transfusions
- Splenectomy
- BM transplant
Beta thalassaemia
- Minor = carriers of abnormally functioning BG gene = mild microcytic anaemia
- Intermedia = 2 abnormal copies = significant MA = transfusions and chelation
- Major = homozygous = severe MA, splenomegaly, bone deformities
G6PD deficiency
- X linked
- Neonatal jaundice
- Acute haemolysis = fever, malaise, dark urine
diagnosis and Mx G6PD
- Measuring G6PD activity in RBC
- Avoid precipitants
Sickle cell inheritance
- Autosomal recessive
- 1 abnormal = trait
- 2 abnormal = disease
- Sickle cell anaemia = homozygous
Paeds diagnosis SCD
- Heelprick test newborn at 5 days old
manifestations of SCD
- Anaemia and jaundice
- Increased susceptibility to infection
- Vaso-occlusive crises
- Acute anaemia
- Splenomegaly
Long term problems SCD
- Short stature and delayed puberty
- Stroke and cognitive problems
- Adenotonsillar hypertrophy
- Cardiomegaly
- HF
- Renal dysfuncton
SCD Mx
- Antibiotic prophylaxis
- Folic acid
-Hydration - Crises = analgesia, hydration, abx, exchange of transfusion
Haemophilia definition
- X linked recessive
- A = FVIII deficiency
- B = FIX
S+S haemophilia
- Recurrent spontaneous bleeding into joints and muscles
- Neonates = IC haemorrhage, prolonged bleeding from heel stick
Haemophilia management
- Recombinant FVIII or FVIX concentrate IV infusion if bleeding