Paeds Flashcards
what are 3 characteristic signs of pneumonia on examination?
bronchial breath sounds
focal coarse crackles
dullness to percussion
what is the most common cause of pneumonia in children?
streptococcus pneumonia
what is the most common viral cause of pneumonia?
respiratory syncytial virus (RSV)
what is the typical x-ray finding in s. aureus pneumonia?
pneumatocoeles (round air filled cavities) and multilobe consolidation
what are 2 bacteria that are more likely to cause pneumonia in pre/un-vacinated children?
GBS
Haemophilus influenza
which bacterial pneumonia can cause extrapulmonary manifestations and what are they?
Mycoplasma pneumonia
Can cause erythema multiforme
what is the management of pneumonia?
1st - amoxicillin
+/- macrolide (erythro, clarithro, azithro) for atypicals or allergy
what is the name of the condition where people cannot convert IgM to IgG so cannot form long term immunity?
immunoglobulin class-switch recombination deficiency
VACCINES DONT WORK!
what age group is typically affected by croup?
6 months - 2years
what is the pathophysiology of croup?
upper resp tract Ix causing oedema of the larynx
what is the most common pathogenic cause of croup?
parainfluenza virus
what are 2 key features of croup caused by parainfluenza virus?
improves in <48 hours
responds well to dexamethasone
what are 3 other common pathogenic causes of croup
influenza
adenovirus
RSV
what is a possible cause of croup especially in pre/unvaxinated children?
diphtheria - leads to epiglottitis!!! high mortality!
what are 5 symptoms of croup?
increased work of breathing
barking cough in clusters
hoarse voice
stridor
low grade fever
what is the treatment for croup?
supportive
oral dexamethasone - single dose 150 mcg/Kg (can repeat at 12 hours)
what is the stepwise management of severe croup?
oral dexamethasone
O2
Neb budesonide
Neb adrenaline
Intubation and ventilation
what can be seen on x-ray in croup?
Steeple sign - tracheal narrowing
what age is virally induced wheeze typical in?
<3 years
what is the pathophysiology of viral induced wheeze?
viral infection causes inflammation and oedema which reduces space for air flow in a greater proportion due to small size of child’s airways- Poiseuilles law
what is the management of viral induced wheeze?
same as acute asthma
what kind of wheeze is heard in asthma and viral wheeze?
expiratory wheeze throughout
what is moderate asthma?
peak flow >50% predicted
normal speech
otherwise well
what is severe asthma? (6)
peak flow <50% predicted
sats <92%
unable to complete sentences
signs of respiratory distress
RR >40 1-5years, >30 5+ years
HR >140 1-5 years, >125 5+ years
what is life threatening asthma?
peak flow <33% predicted
sats <92%
exhaustion and poor resp effort
hypotension
silent chest
cyanosis
altered consciousness/confusion
what is a physical finding on the chest wall in severe chronic asthma?
harrison sulus - indentation in chest wall along 6th rib can be bilateral or unilateral
what is the acute management of asthma/viral wheeze?
Escalating Bronchodilators - Salbutamol, ipratropium bromide, magnesium sulphate, aminophylline
PLUS - Steroids - prednisone (oral) or Hydrocortisone IV
ABx - if suspected
what is the stepwise progression of bronchodilators in acute asthma?
IHR/Neb salbutamol (10 puffs every 2 hours or repeat nebs every 20-30 mins)
IHR/Neb ipratropium bromide
IV magnesium sulphate
IV aminophylline
what on spirometry suggests an obstructive picture?
reversibility
FEV1 <80%, FEV1:FVC <0.7
what are 4 investigations for asthma?
spirometry
direct bronchial challenge
fractional exhaled nitric oxide
peak flow variability
what is the long term management of asthma over 5?
Reliever - SABA (salbutamol)
Preventer
1 - ICS
2 - ICS + LTRA (leukotriene receptor antagonist - montelukast)
3 - ICS + LABA (-LTRA)
4 - MART (maintenance and reliever therapy, steroid + (S)LABA)
which LABA can be used as a short acting agonist also?
folmeterol
can ICS cause restricted growth?
can reduced adult hight with long term use by up to 1cm . dose dependent effect
what is the most common cause of bronchiolitis?
Respiratory syncytial virus (RSV)
in what age group does bronchiolitis occur?
<1 year, most common <6 months can be up to 2 years
what are 5 risk factors for bronchiolitis?
Underlying respiratory disease
congenital heart defects
seasonal
immunodeficiency
prematurity
what are 8 typical signs of bronchiolitis?
coryzal symptoms - URTI
signs of resp distress
dyspnoea
tachypnoea
poor feeding
mild fever
apnoea
wheeze and crackles
what are 8 signs of respiratory distress?
raised RR
use of accessory muscles
intercostal and subcostal recession
nasal flaring
head bobbing
tracheal tugging
cyanosis
abnormal airway noise
what is the typical course of RSV bronchiolitis?
coryzal symptoms
chest symptoms 1-2 days later
worst day 3-4
symptoms usually last 7-10 days
what are reasons for admission in bronchiolitis?
<3 months, pre-existing conditions
<50-70% of normal milk intake
clinical dehydration
RR >70
O2 <92% OA
resp distress
apnoea
parent not able to manage/access medical help at home
what is the management of bronchiolitis?
ensure adequate intake - NG, IVs
saline nasal drops, nasal suctioning
O2
ventilation support
2 signs of poor ventilation of a cap gas?
rising pCO2
falling pH
what can be given as prevention of RSV infection?
Palivizumab
monthly injection as prevention of bronchiolitis caused by RSV given to high risk babies. Provides passive protection
what are 4 indications for RSV prophylaxis in babies?
Chronic lung disease - requiring O2 post 28 days
Respiratory disease
Congenital heart disease
Severe combined immunodeficiency syndrome
what age does laryngomalacia occur at?
infants peaking at 6 months - inspiratory stridor exacerbated by lying, feeding, upset => no coinciding resp distress
problem resolves as larynx matures - around 1.5 years
what infection typically causes epiglottitis?
HiB
what are 8 symptoms of epiglottitis?
sore throat/pain swallowing
stridor
drooling
tripod position
high fever
muffled voice
scared and quiet
septic and unwell
what investigation can be done in suspected epiglottitis?
lateral xray of neck
what is the management of epiglottitis?
alert senior paediatrician and anaesthetist
ABx - cefriaxone
steroids - dexamethasone
what is a complication of epiglottitis?
epiglottic abscess
what is chronic lung disease of prematurity (bronchopulmonary dysplasia)?
typically <28 weeks gestation suffer from resp distress syndrome and require O2 or intubation and ventilation at birth. Diagnosed on CXR when infant required O2 >36 weeks gestational age
what are 5 features of chronic lung disease of prematurity?
low O2 sats
increased work of breathing
poor feeding and weight gain
crackles and wheeze
increased susceptibility to infection
what can reduce risk of chronic lung disease of prematurity?
corticosteroids (betamethasone) in premature labour mothers <36 weeks
CPAP rather than intubation
Caffeine to stimulate resp effort
avoid over-oxygenating
what is the most common pathogen of otitis media?
strep pneumoniae
what is the typical presentation of otitis media?
ear pain
reduced hearing
symptoms of URTI
what is the first line Abx for otitis media?
1 - amoxicillin 5 days
erythro, clarithro
what is glue ear?
otitis media with effusions - middle ear become full of fluid due to a blockage in the eustacion tube causing loss of hearing
what can be seen on otoscopy in glue ear?
dull tympanic membrane with air bubbles or a visible fluid level
can look normal
what is the natural course of glue ear?
usually resolves within 3 months without treatment
how long does it usually take grommets to fall out?
1 year
what are 3 common congenital causes of deafness?
maternal rubella or CMV
genetic deafness
associated syndromes - downs
what are 2 common perinatal causes of deafness?
prematurity
hypoxia during or after birth
what are 4 common post natal causes of deafness?
jaundice
meningitis and encephalitis
otitis media or glue ear
chemo
what is the range of normal hearing on an audiogram?
all readings between 0-20 dB
what are 3 symptoms additional to tonsillitis symptoms that can indicate quinsy?
trismus - unable to open mouth
change in voice (hot potato voice)
swelling and erythema surrounding tonsils
what is the most common pathogen in quinsy?
strep pyogenes (A) and Haemophilus influenzae
what is the management of quinsy?
drainage and Abx (co-amox)
?dex
what is preorbital cellulitis?
infection of upper and lower eyelid which causes red how skin swelling around eyelid and eye - distinguish from orbital cellulitis with CT scan
usually no pain or reduction in eye movements, no change in vision or abnormal pupillary response
what is the management of preorbital cellulitis?
systemic Abx
what is squint also known as?
strabismus - misalignment of the eyes causing double vision
what are 5 causes of squint?
idiopathic
hydrocephalus
cerebral palsy
space occupying lesion
trauma
what are 2 tests for squint?
cover test
herschberg’s test
what is the management of squint?
occlusive patch or atropine drops in good eye
what are the 3 foetal circulation shunts?
ductus venosus
foramen ovalae
ductus arteriosus
what is the ductus venosus?
shunt connecting umbilical vein to inferior vena cava allowing foetal blood to bypass liver
what is the foramen ovale?
shunt connecting R to L atrium which allows blood to bypass R ventricle and pulmonary circulation
what is the ductus arteriosus?
shunt connecting pulmonary artery and aorta which allows blood to bypass the pulmonary circulation
are atrial septal defects cyanotic?
no - unless R sided pressure becomes so great due to pulmonary hypertension the shunt reverses - EISENMENGER SYNDROME
what is eisenmenger syndrome?
when a shunt reverses due to pulmonary HTN causing R sided pressure > L sided pressure leading to pulmonary circulation bypass and cyanosis. develops after 1-2 years with large shunts and in adulthood with small
what are 4 complications of atrial septal defects?
stroke - with DVT - clot bypasses lungs
AF or atrial flutter
Pulmonary hypertension and r sided HF
Eismenger syndrome
what are 3 types of atrial septal defect?
Ostium secondum - septum secondum fails to fully close
patent foramen ovale
ostium primum - septum primum fails to close - tends to causes Av valve defects also
what is the murmur in ASD?
mid systolic crescendo-decrescendo murmur loudest at upper left sternal border with a fixed split second heart sound
what are 5 typical ASD symptoms?
SOB
difficulty feeding
poor eight gain
LRTIs
complications - heart failure, stroke
what is the management of ASD?
Referral to paediatric cardio
Watchful waiting if small
Transvenous catheter closure or open heart surgery
what can be seen on examination in eisenmengers syndrome?
cyanosis
clubbing
dyspnoea
plethoric complection (due to polycythaemia)
what is the management of eisenmengers syndrome?
Heart lung transplant
Management of pulmonary HTN, polycythaemia and thrombosis
what 2 genetic conditions are associated with VSDs?
Downs
Turners
what 3 defects can cause eisenmenger’s syndrome?
ASD
VSD
patent duct arteriosus
what is the murmur is VSD?
pan-systolic more prominent at left lower sternal border in 3/4 intercostal space. May be systolic thrill
what are the 3 causes of pan-systolic murmur?
VSD
mitral regurg
tricuspid regurg
what is the management for VSD?
Watch and wait if small
Surgical repair - transvenous catheter closure or open heart surgery
what are 4 complications of VSD?
Eisenmenger syndrome
Heart failure
endocarditis
pulmonary hypertension
how long does it usually take for the ductus arteriosus to close?
1-3 days to stop functioning, 2-3 weeks to fully close
what kind of shunt is patent duct arteriosus?
left to right - from aorta to pulmonary vessels
what murmur is heard in patent duct arteriosus?
continuous crescendo -decrescendo machinery murmur
what causes an ejection systolic murmur? (3)
aortic stenosis
pulmonary stenosis
hypertrophic obstructive cardiomyopathy
what 2 conditions that cause cyanotic heart disease?
transposition of the great arteries
Tetralogy of fallot
Also Eisenmengers transformation
what 4 conditions are coarctation of the aorta associated with?
turners syndrome
bicuspid aortic valve
berry aneurysm
neurofibromatosis
what is the presentation of coarctation of the aorta?
weak femoral pulses - upper limb BP higher than lower limb - radiofemoral delay
Systolic murmur below left clavicle, may radiate to scapula
tachypnoea
poor feeding
grey, floppy baby
what is the management of coarctation of the aorta?
surgery
in high risk - prostaglandin E to keep ductus arteriosus open till surgery
what cardiac condition causes cyanosis at birth?
transposition of the great arteries
what is transposition of the great arteries?
the attachments of the aorta and pumonary trunk are swapped so R ventricle pumps blood into aorta and L ventricle into pulmonary artery
what is the management of transposition of the great arteries?
prostaglandins E1 - maintain ductus arteriosus
Balloon septostomy - insert balloon catheter into foramen ovale to create largeASD
open heart surgery - arterial switch
what are the 4 pathologies in tetralogy of fallot?
Pulmonary valve stenosis
Right ventricular hypertrophy
Overriding Aorta
VSD
PROVe
what kind of shunt is there in tetralogy of fallot?
left to right - cyanotic
what are 4 risk factors for tetralogy of fallot?
rubella infection
increased age of mother
alcohol in pregnancy
diabetic mother
what investigations can be used for septal defects?
echo + doppler flow studies
what can be seen on chest x-ray in tetralogy of fallot?
boot shaped heart due to right ventricular hypertrophy
what are 6 manifestations of tetralogy of fallot?
cyanosis
clubbing
poor feeding
poor weight gain
ejection systolic murmur loudest in pulmonary area
tet spells
what are tet spells?
seen in tetralogy of fallot where shunt becomes temporarily worse causing cyanotic episode - usually during waking, exertion, crying
what is the management of tet spells?
squatting or pulling knees to chest - increases systemic vascular resistance
O2
beta blockers - relax R ventricle
IV fluids
morphine - decrease resp drive
sodium bicarb - buffer metabolic acidosis
phenylephrine infusion - increase systemic vascular resistance
what is the management of tetralogy of fallot?
Prostaglandin E1 - maintain ductus arteriosus
Beta blockers - may be used for tet spells
total surgical repair at 3-6 months
what is ebstein’s anomaly?
R tricuspid valve lower than normal causing R ventricle to be smaller causing poor flow to pulmonary vessels - usually presents after closing of ductus arteriosus
what 4 conditions are associated with pulmonary valve stenosis?
tetralogy of fallot
william syndrome
noonan syndrome and turners syndrome
congenital rubella syndrome
what is rheumatic fever?
autoimmune condition triggered by antibodies to group A beta-haemolytic strep - typically strep pyogenes causing tonsilitis. The process usually occurs 2-4 weeks after initial infection
what is the presentation of rheumatic fever? (7)
fever
joint pain - migratory of large joints
erythema marginatum rash
shortness of breath
chorea
firm painless nodules
carditis - tachy/brady, murmurs, pericardial rub, heart failure
what are 3 investigations for rheumatic fever?
throat swab and culture
Anti streptococcal antibodies (ASO) titres
ECHO, ECG, CXR
what criteria is used to diagnose rheumatic fever?
jones criteria
what is the jones criteria?
for diagnosing rheumatic fever
TWO of JONES
Joint arthritis
Organ inflammation (carditis)
Nodules
Erythema marginatum rash
Sydenham chorea
OR
One JONES and TWO FEAR
Fever
ECG changes (prolonged PR)
Arthralgia
Raised inflammatory markers
what is the management of rheumatic fever?
Abx - Benzathine benzylpenicilin or phenoxymethylpenicillin
NSAIDs or salicates (joint pain)
Aspirin and steroids - carditis
Heartfailure - Diuretics +/- ACEi
Chorea - carbamazepine
what are 3 complications of rheumatic fever?
recurrence
valvular heart disease - mitral stenosis
chronic heart failure
what are 6 signs of problematic reflux in babies?
chronic cough
hoarse cry
distress after feeding
reluctance to feed
pneumonia
poor weight gain
what advice can be given for GORD in babies?
small frequent meals
burping regularly
not overfeeding
keep baby upright after feeding
what kind of vomiting is present in GORD?
effortless mainly after feeding
what 3 treatments can be given in babies with GORD?
gaviscon mixed with feeds
thickened milk or anti-reflux formula
PPIs
what is a key feature of pyloric stenosis?
projectile vomiting
when does pyloric stenosis present?
first few weeks (4-6 weeks) of life baby failing to thrive with projectile vomiting 30 mins after feeding
what 3 things can be found on examination of a baby with pyloric stenosis?
observation of stomach peristalsis
firm round ‘olive like’ mass in upper abdomen
hypochloric (low Cl-), hypokalaemia metabolic alkalosis on blood gas
how is pyloric stenosis dianosed?
Abdo USS
what is the management of pyloric stenosis?
laparoscopic pyloromyotomy - Ramstedt’s operation
what are 2 common viral causes of gastroenteritits?
rotavirus
norovirus
which e.coli produces shiga toxin?
E.coli 0157
what does shiga toxin cause?
abdo cramps, bloody diarrhoea, vomiting - can lead to haemolytic uraemic syndrome
what is the most common cause of bacterial gastroenteritis?
campylobacter jejuni
where does campylobacter come from?
raw/improperly cooked poultry
untreated water
unpasteurised milk
what is the treatment of campylobacter?
azithromycin or ciprofloxacin
which bacteria causes gastroenteritis after food has not been refrigerated quickly (rice)?
bacillus cereus - diarrhoea resolving in 24 hours
what is the treatment of Giardiasis?
metronidazole
what are 4 possible complications of gastroenteritis?
lactose intolerance
IBS
reactive arthritis
GBS
what is toddlers diarrhoea?
chronic watery diarrhoea in well <5 year olds which can often be helped by changes in diet
what are the 4fs of toddler’s diets?
fat - shouldnt have low fat diet
Fluid - not sugary drinks, not too much water
Fruit + fruit juice - gut cannot absorb fructose or sorbitol easily
Fibre - 12-18g per day
what is persistent diarrhoea?
> 2 weeks
what is chronic diarrhoea?
> 4 weeks
what is encopresis?
foecal incontinence
at what age does faecal incontinence become pathological?
4 years
what are 6 causes of faecal incontinence?
spina bifida
hirschprungs disease
cerebral palsy
overflow incontinence - stress, abuse
Constipation with overflow
Learning disability
what are 5 lifestyle factors that may contribute to constipation in children?
habitual not opening bowels
low fibre diet
poor fluid intake
sedentary lifestyle
psychosocial problems
what are 8 secondary causes of constipation in children?
hirschprungs disease
CF
Hypothyroid
Spinal cord lesions
sexual abuse
Intestinal obstruction
anal stenosis
cow milk intolerance
what are 8 red flag symptoms of constipation in children?
Failure to pass meconium
neurological signs or symptoms
Vomiting
Ribbon stool
Abnormal anus
Abnormal lower back/buttocks - spina bifida
Failure to thrive
Acute sever abdo pain/bleeding
what is the first line laxative in children?
1 - Macrogol (movicol)
1-11 months - 0.5 sachets
1-5 years - 1 sachet
6-11 years - 2 sachets
MAX 4 sachets
2 - add stimulant laxitive
what is meckel’s divertculum?
malformation of distal ileum present in 2% of population that can bleed, become inflamed, rupture or cause volvutus, intussusception or obstruction
what is the presentation of Meckel’s diverticulum?
abdo pain mimicking appendicitis
Rectal bleeding - most common cause of massive GI bleed in 1-2 year olds
Intestinal obstruction - volvulus and intussusception
what investigations can be used for meckel’s diverticulum?
Meckels scan - technetium-99m pertechnetate
Mesenteric arteriography
what is the management of symptomatic Meckel’s diverticulum?
surgical resection or diverticulectomy
what are the 5 key features of Crohn’s? (mneumonic)
NESTS
No blood or mucus (less than UC)
Entire GI tract
Skip lesions
Terminal ileum most affected + Trans mural
Smoking risk factor
weight loss, strictures, fistulae
what are the 7 key features of UC? (mneumonic)
CLOSEUP
Continuous inflammation
Limited to colon and rectum
Only superficial mucosa
Smoking protective
Excrete blood and mucus
Use aminosalicylates
Primary sclerosing cholangitis
what is one stool test that can be used for IBD but only in adults?
faecal calprotectin
Aged 16-40 years
what is the most common congenital abnormality of the small bowel?
meckel’s diverticulum
when do people usually present with meckel’s diverticulum?
<2 years
what is faltering growth?
fall in weight across:
1+ centiles if birth weight below 9th
2+ centiles if birth weight between 9th-91st
3+ centiles if birth weight 91+ centiles
what are 5 causes of failure to thrive?
inadequate nutritional intake
difficulty feeding
malabsorption
increased energy requirements
inability to process nutrition
what are 5 causes of inadequate nutritional intake in children failing to thrive?
maternal malabsorption if breastfeeding
IDA
family or parental problems
neglect
availability of food
what are 4 causes of difficulty feeding?
poor suck (cerebral palsy)
cleft lip/palate
genetic conditions w/ abnormal face structure
pyloric stenosis
what are 5 causes of malabsorption in children failing to thrive?
CF
coeliac disease
cows milk intolerance
chronic diarrhoea
IBD
what are 4 causes of increased energy requirements in children failing to thrive?
Hyperthroidism
chronic disease - CF, CHD
malignancy
chronic infections - HIV, immunodeficiency
what are 2 causes of inability to process nutrients in children failing to thrive?
inborn errors of metabolism
T2DM
how do you calculate mid-parental height?
average of parents height
what is anthropometry?
in nutritional assessment - includes weight, height mid-upper arm circumference and skinfold thickness
what is Hirschprungs disease?
congenital condition where nerve cells of the myenteric (auerbach’s) plexus are absent causing a lack of peristalsis of the large bowel
what innervation is responsible for motor supply to the bowel?
Auerbach plexus
located between circular and longitudinal muscle layers of gut - responsible for peristalsis - in muscularis propria
what plexus is responsible for innervation of gastric absorption, secretion and blood flow as well as ion and water transport and sensory stimuli?
Meissner’s plexus
In submucosa
what is the key pathopysiology of hirschprungs disease?
absence of parasympathetic ganglion cells in the colon
what are 4 syndrome that can be associated with hirschprung’s?
downs
neurofibromatosis
waardenburg syndrome
multiple endocrine neoplasia type II
what are 5 presentations of hirschprungs disease?
delay in passing meconium
chronic constipation since birth
abdo pain and distention
vomiting
poor weight gain and failure to thrive
what is hirschsprung associated enterocolitis?
inflammation and obstruction of the intestines in 20% of neonates with hirschprungs presenting usually between 2-4 weeks with fever, abdo distension, diarrhoea (w/ blood usually) and features of sepsis
what is the management of hirschsprungs associated enterocolitis?
Abx
fluid resuscitation
decompression of obstruction
how is hirschsprungs disease diagnosed?
rectal biopsy + histology for absence of ganglionic cells
what is the management of hirschsprungs disease?
surgical resection of aganglionic bowel - usually anorectal pull-through
what age group does intussusception occur most commonly in?
6 months - 2 years
more common in boys
what is intussusception?
when the bowel invaginates into itself usually causing bowel obstruction
what 5 conditions are risk factors for intussusception?
concurrant viral illness
henoch-schonlein purpura
CF
intestinal polyps
meckel diverticulum
what are 6 presentations of intussusception?
sever colicky abdo pain
pale, lethargic unwell child
Inconsolable crying
drawing knees up and turning pale
redcurrant jelly stool
sausage shaped RUQ mass
vomiting
intestinal obstruction
what is the first line investigation for intussusception?
US abdo
what can be seen on abdo US in intussusception?
Target like mass
what is the treatment for intussusception?
1 - therapeutic enema (air insufflation) - contrast, water or air
2- surgery
what are 4 complications of intussusception?
obstruction
gangrenous bowel
perforation
death
what are 8 causes of bowel obstruction in children?
meconium ileus
hirschprungs
oesophageal atresia
duodenal atresia
intussusception
imperforate anus
malrotation of the intestines + volvulus
strangulated hernia
what can be seen on abdo xray in obstruction?
proximal dilated bowel loops
distal collapsed bowel loops
absence of air in rectum
what classes as bowel loop dilation in adults?
rule of 3s
small bowl >3cm
Large bowel >6cm
Caecum >9 cm
when does biliary atresia present?
shortly after birth
what is the presentation of biliary atresia?
jaundice a few weeks after birth - CONJUGATED bilirubin
Pale stools and dark urine
irritability
hepatomegaly
Failure to thrive
what kind of bilirubin is high in biliary atresia?
conjugated bilirubin
what is the 1st line investigation for billiary atresia?
conjugated and unconjugated bilirubin
what is classed as persistent jaundice in babies?
> 14 days term babies
21 days premies
what is the management of billiary atresia?
surgery - kasai portoenterostomy
Ursoseoxycholic acid - given post op to promote bile flow
often require full liver transplant
what surgery is used to correct biliary atresia?
Kasai portoenterostomy
what are 3 complications of biliary atresia?
Cholangitis
cirrhosis and liver failure
nutritional deficiencies - unable to absorb fat soluble vitamins
what is henoch-schonlein purpura?
autoimmune small vessel vasculitis usually triggered by URTI which causes inflammation of capilaries leading to purpuric rash typically on lower legs, joint pain and GI symptoms. Can also cause kidney damage due to IgA deposits
what are the 4 classic features of Henoch-schonlein purpura?
purpuric rash on legs
joint pain
GI symptoms
Renal involvement - IgA nephritis
what is the management of henoch-schonlein purpura?
Supportive - analgesia (NSAIDs unless renal injury), rest, hydration
Steroids may be used to shorted duration
moniter urine dip and BP
what are 4 complications of henoch-scholein purpura?
GI bleed or intussuscpetion
AKI or CKD
Scrotal swelling or orchitis
Recurrence
what is an abdominal migraine?
severe central abdo pain >1 hour with normal examination
may also have nausea, vom, anorexia, pallor, headache, photophobia, aura
what is the acute management of abdo migraine?
paracetamol
ibuprofen
sumatriptan
what is the prophylaxis of abdo migraine?
1 - pizotifen - serotonin agonist
propanolol
cyproheptadine - antihistamine
flunarazine - Ca channel blocker
what is gastroschisis?
a birth defect causing abdominal organs to be located outside abdomen due to defect in abdominal wall
what are 2 examination findings in diaphragmatic hernia?
apex beat displaced to r side of chest
poor air entry in L chest
what is the management of diaphragmatic hernia?
NG tube suction to prevent intrathoracic bowel distention and surgical repair - high mortality due to underdeveloped lungs in utero
who are umbilical hernias more common in?
children of african descent
what are 2 classes of symptoms of cow milk protein allergy?
GI symptoms - bloating, wind, abdo pain, diarrhoea , vomiting
Allergic symptoms - hives, angio-oedema, cough/wheeze, sneezing, watery eyes, eczema, anaphylaxis
what formula can be used in cow milk protein allergy?
hydrolysed formulas or in severe cases elemental amino acid formulas
what is the difference between cow milk intolerance and allergy?
intolerance has GI symptoms but no allergic symptoms unlike allergy
what immunoglobulin causes rapid cows milk protein allergy?
IgE
what are choledochal cysts?
congenital cyst dilations of the billary tree more commonly affecting females which have a small risk of malignancy
what is the classic triad of choledochal cysts?
abdo pain
jaundice
abdo mass
what is neonatal hepatitis syndrome?
idiopathic prolonged neonatal jaundice and hepatic inflammation which may cause low birth weight and faltering growth
what is the usual presentation of colic?
sudden inconsolable crying/screaming accompanied by drawing knees to chest and passign excessive gas
what 2 findings indicate pyelonephritis over uti?
temp >38 degrees
loin pain/tenderness
what is the management for < 3 months with fever?
immediate IV Abx - cefotaxime+ amoxicillin
+ full septic screen
what a full septic screen in <3 months?
bloods - FBC, CRP, cultures, lactate
urine dip
CXR
LP
? cap gas
when should children with UTIs get an USS within 6 weeks?
if first UTI <6 months
recurrent UTIs
atypical UTIs
what investigation can be done for defects in renal tissue and scars after UTI?
DMSA scan (dimercaptosuccinic acid) - injection of radioactive material using gamma camera done 4-6 months after infection
what investigation can be done to visualise urinary anatomy, vesicouteric reflux and urethral obstruction in children <6 months?
micturating cystourethrogram (MCUG)
- catheterise child and inject contrast then take x rays
what is vesico-uteric reflux?
where there is a developmental abnormality of the vesicouteric junction where the ureters are displaced laterally and enter the bladder directly allowing urine to reflux back up ureters and to the kidney causing dilatation and increased risk of infection and scaring
what is the management of pyelonephritis in children?
Consider referral to paeds at any age and definitely <3 months
1 - Cefalexin PO
3mon to 11 years - 12.5 mg/kg BD 7-10 days
12-15 years - 500mg BD/TDS 7-10 days
OR
Co-Amox PO
3mon-5 years - 0.25ml/kg of 125/31 suspension TDS 7-10 days
IVs - Co-amox, cefuroxime, ceftriaxone, gent, amikacin
what is the management of UTI in children <3 months?
Imediate paeds referral
IV antibiotics (ceftriaxone)
Full septic screen - blood cultures, bloods, lactate, ?LP
what is the management of UTI in children >3 months?
1 - Trimethoprin PO
3mon to 11 years - 4mg/Kg BD for 3 days
12-15 years - 200mg BD 3 days
Nitrofurantoin PO
3 mon-11 years - 750 microg/Kg QDS for 3 days
12-15 years - 50mg QDS 3 days
2 - Nitrofurantoin
Cefalexin PO
3mon-11 years - 12.5mg/kg BD for 3 days
12-15 years - 500mg BD 3 days
what is enuresis?
involuntary urination
by what age do children usually get control of day time bladder function?
2 years
by what age do children usually stop bed wetting?
3-4 years
what are 5 possible causes of primary nocurnal enuresis?
overactive bladder - frequent small volume urination prevents development of bladder capacity
fluid intake prior to bed
failure to wake
psychological distress
secondary causes - chronic constipation, UTI, learning disability, cerebral palsy
what is primary nocturnal enuresis?
wetting the bed having never stopped
what is secodnary nocturnal enuresis?
wetting the bed having previously stopped for >6 months
what are 5 causes of secondary nocturnal enuresis?
UTI
constipation
T1DM
psychosocial problems
abuse
what is diurnal enuresis?
day time wetting self
what are 3 management options for nocturnal enuresis?
Eneurisis alarm - 1st line
desmopressin (taken at bedtime)
oxybutinin - anticholinergic
imipramine - tricyclic antidepressant
what age range is nephrotic syndrome most common in?
2-5 years
what is the classical triad of nephrotic syndrome?
low serum albumin
high urine protein (3+ or >3 grams)
oedema
what are 6 signs of nephrotic syndrome?
low serum albumin
high urine protein
oedema
deranged lipid profile
high BP
hyper-coagulability
what is the most common cause of nephrotic syndrome in children?
minimal change disease
what are 4 secondary causes of nephrotic syndromes?
intrinsic kidney disease - focal segmental glomerulosclerosis, mebranoproliferative glomerulonephitis
Henoch schonlein purpura
diabetes
infection - HIV, hepatitis, malaria
what can be seen on urinalysis in minimal change?
small molecular weight proteins and hyaline casts
what is the first line management of minimal change disease?
high dose corticosteroids - prednisolone
what is the management of steroid resistant nephrotic syndrome?
ACEi
immunosupressants - cyclosporine, tacrolimus, rituximab
what is the general management of nephrotic syndromes (5)?
high dose steroids - pred
low salt diet
diuretics
albumin infusion
antibiotic prophylaxis
what are 5 complications of nephrotic syndromes?
hypovolaemia and low BP
thrombosis
infection - kidneys leak immunoglobulins
acute or chronic renal failure
relapse
what is the pathophysiology of nephrotic syndromes?
the basement membrane of the glomerulus becomes highly permeable to proteins allowing them to leak from the blood into the urine
what is the pathophysiology of nephritic syndromes?
inflammation of the nephrons
what are 3 consequences of nephritic syndromes?
reduction in kidney function
haematuria
proteinuria (less than nephrotic)
what are the two most common causes of nephritis in children?
post-streptococcal glomerulonephritis
IgA nephropathy - HSP
what is the pathophysiology of post-streptococcal glomerulonephritis?
1-3 weeks after b-haemolytic strep (strep pyogenes) infection e.g tonsilitis immune complexes get stuck in the glomeruli and cause inflammation leading to AKI
what 2 investigations can be done to test for strep in post-strep glomerulonephritis?
positive throat swab
anti-streptolysin antibody titres
what is the management of nephritis?
supportive mainly
manage complications - IgA may need immunosupression
what is IgA nephropathy a complication of?
Henoch-schonlein purpura (IgA vasculitis)
what is the pathophysiology of IgA nephropathy?
IgA deposits in nephrons cause inflammation
what 2 things can be seen on biopsy in IgA nephropathy?
IgA deposits
Glomerular mesangial proliferation
what age group is usually affected with IgA nephropathy?
teens and young adults
what usually triggers haemolytic uraemic syndrome?
shinga toxin (from e.coli 0157 or shingella)
what is the classical triad of haemolytic uraemic syndrome?
haemolytic anaemia
AKI
thrombocytopenia
what increases the risk of haemolytic uraemic syndrome?
use of antibiotics and loperamide to treat gastroenteritis caused by e.coli0157 or shingella
how long after onset of gastroenteritis do symptoms of haemolytic uraemic syndrome usually start?
5 days
what are 8 presentations of haemolytic uraemic syndrome?
reduced urine output
haematuria or dark brown urine
abdo pain
lethargy and irritablility
confusion
oedema
HTN
bruising
what is the management of haemolytic uraemic syndrome?
supportive - renal dialysis, antihypertensives, maintain fluid balance, blood transfusion
what is hypospadias?
condition where uretheral meatus is displaced to underside of penis
what is epispadias?
condition where the urethral meatus is displaced to the top side of the penis
what is chordee?
where head of penis is bent downwards
what are 3 complications of hypospadias?
difficulty directing urination
cosmetic and psychological concerns
sexual dysfunction
what is phemosis?
pathological non-retration of foreskin
what condition is the most common cause of phimosis?
balantitis xerotica obliterans
what reduction in renal function classes as AKI?
<0.5 ml/Kg/hour over 6 hours
what category of cause is most common in childhood AKI?
pre-renal
what are the 2 most common causes of intra-renal failure in children?
haemolytic uraemic syndrome
acute tubular necrosis
what is stage 1 ckd?
eGFR >90 ml/min per 1.73 m2
what is stage 2 ckd?
eGFR 60-89
what is stage 3 ckd?
eGFR 30-59
what is stage 4 eGFR?
eGFR 15-29
what is stage 5 ckd?
eGGR <15 ml/min per 1.73m2
what 8 presenting features of severe CKD?
anorexia and lethargy
polydipsia and polyuria
faltering growth
bony deformities from renal rickets
hypertension
acute on chronic renal failure
proteinuria
normochomic normocytic anaemia
what type of hypersensitivity reaction in anaphylaxis?
type 1
what immunoglobulin causes anaphylaxis?
IgE
what is the pathophysiology of anaphylaxis?
igE stimulates mast cells to rapidly release histamine in mast cell degranulation
what is the key feature of anaphylaxis vs non-anaphylactic allergy?
anaphylaxis causes compromise of airway, breathing or circulation
what are the 4 allergic symptoms?
urticaria
itching
angio-oedema
abdominal pain
what is the management of anaphylaxis?
ABCDE
IM adrenaline
Antihistamines - chlorphenamine or certirizine
steroids - hydrocortisone
what can be a complication of anaphylaxis?
biphasic reaction - second anaphylactic reaction after treatment
what investigation can be done for anaphylaxis?
serum mast cell tryptase - within 6 hours of event
what are 5 reasons someone with a non-anaphylactic allergic reaction may get an epipen?
asthma requiring ICS
poor access to medical tx
adolescents - higher risk
nut/sting allergies
significant co-morbidities
what is the skin sensitisation theory of allergy?
there is a break in the infants skin that allows allergens from the environment to react with the immune system but there is no contact with the allergen through the GI tract
what is the classification system for hypersensitivity reactions?
cooms and gell
what is a type 1 hypersensitivity reaction?
IgE antibodies trigger mast cells and basophils to degranulate causing an immediate reaction - food allergy reactions
what is a type 2 hypersensitivity reaction?
IgG and IgM mediated activating the complement system leading to direct damage of local cells - haemolytic disease of newborn, transfusion reactions
what is a type 3 hypersensitivity reaction?
immune complexes accumulate and cause damage to local tissues - autoimmune conditions
what is a type 4 hypersensitivity reaction?
cell mediated caused by T lymphocytes which are inappropriately activated causing inflammation and damage to local tissues - organ transplant rejection, contact dermatitis
what are 3 investigations for allergies?
skin prick test
RAST testing - measure of allergen specific IgE
food challenge - gold standard
what hypersensitivity reaction is allergic rhinits?
type 1 IgE
what is the presentation of allergic rhinitis?
runny, bocked, itchy nose
sneezing
itchy, red, swollen eyes
what are 3 non-sedating antihistamines?
certirizine
loratadine
fexofenadine
what are 2 sedating anti-histamines?
chlorpenamine
promethazine
what can be taken as prophylactic for allergic rhinits?
nasal corticosteroids - fluticasone, mometasone
what are 3 live vaccinations?
BCG
MMR
nasal flu vaccine
what can cafe-au-lait spots be a sign of?
neurofibromatosis type 1 (if have 6+)
what 3 things can port wine marks rarely be a sign of?
sturge-weber syndrome
klippel trenaunay syndrome
macrocephaly-capillary malformation
what are mongolial blue spots?
blue/black macular discolouration at base of spine and on buttocks or thighs - fade over first few years of life
what is osteogenesis imperfecta?
genetic condition also known as brittle bone disease caused by mutation in formation of collagen
what is the inheritance of osteogenesis imperfecta?
Autosomal dominant
what are 8 features associated with osteogenesis imperfecta?
hypermobility
blue/grey sclera
triangular face
short stature
deafness from early adulthood
dental problems
bone deformities
joint and bone pain
what are blood results usually like in osteogenesis imperfecta?
normal - calcium, phosphate, parathyroid, ALP
what is the pathophysiology of rickets?
deficiency in vitamin D/calcium which results in defective bone mineralisation
what is the name of the genetic version of rickets?
hereditary hypophasphataemic rickets
what is the inheritance of hereditary hypophosphataemic rickets?
X-linked dominant
what are 8 presentations of rickets?
lethargy
bone pain
swollen wrists
bone deformuty
poor growth
dental problems
muscle weakness
pathological or abnormal fractures
what are 5 bone deformities in rickets?
bowing of legs
knock knees
rachitic rosary - expanded ribs causing lumps on chest
craniotabes - soft skull, delayed closing
delayed teeth
what investigation is done for vitamin d deficiency?
serum 25-hydroxyvitamin D - <25nmol/L = deficiency
what are 5 investigations that can be done for rickets?
serum 25-hydroxyvitamin D
serum calcium
serum phosphate
serum alkaline phosphatase
parathyroid hormone
what is the most common cause of hip pain in children 3-10 years?
transient synovitis
what is transient synovitis often associated with?
preceeding viral upper resp tract infection
low grade fever
what criteria can be used to distinguish between transient synovitis and septic arthritis in children?
Kocher criteria
what is the Kocher criteria?
For septic arthritis in children
Fever >38.5
Non-weight bearing
Raised ESR
Raised WCC
what age is septic arthritis most common in?
<4 years
what is perthes disease?
disruption of blood flow to femoral head causing avascular necrosis of the epiphysis of the femur
what age group does perthes disease occur most commonly in?
Occurs 4-12 years age group most commonly 5-8 years
More prevalent in boys
what is the presentation of perthe’s disease?
slow onset of
Pain inn hip/groin
Limp
Restricted hip movements
Referred pain to knee
what investigation is used to confirm absence of perthe’s disease in normal x-ray?
Technertium bone scan
OR
MRI
what staging can be used for perthe’s disease?
Catterall staging
what are 2 complications of perthe’s disease?
Osteoarthritis
premature fusion of growth plates
what is the management of perthe’s disease?
Bed rest
traction
crutches
analgesia
physio
regular x-rays
Surgery may be required if present at older age or greater stage of disease
what is slipped upper femoral eiphysis? (SUFE)
when head of femur displaces along growth plate
who is SUFE more common in?
boys aged 8-15
obese children
May be history of mild trauma
how do people with SUFE prefer to hold their hip?
in external rotation and have limited movement of hip
what is the 1st line investigation for SUFE?
X-ray - AP and Lateral (frag leg) views
what is the management of SUFE?
Avoid weight bearing
surgery to correct femoral head position - internal fixation
what are 4 complications of SUFE?
Osteoarthritis
Avascular necrosis of the femoral head
Chondrolysis
Leg length discrepancy
what is developmental dysplasia of the hip?
structural abnormality n developmental of foetal bones leading to instability of the hips and tendency for subluxation or dislocation
what are 7 risk factors for developmental dysplasia of the hip?
FHx 1st degree relative
breech presentation > 36 weeks or at birth
Multiple pregnancy
Female
oligohydramnios
prematurity
macrosomnia (>5kg)
what are 6 findings that may suggest developmental dysplasia of the hip on neonatal examination?
different leg lengths
restricted hip abduction on one side
significant bilateral restriction in hip abduction
difference in knee level with flexed hips
clunking of hips on special tests
asymmetrical skin folds
what are two special test for developmental dysplasia of the hio?
ortolani test
barlow test
what infants require an US for developmental dysplasia of the hip? 3
1st degree relative Hx of hip problem in early life
Breech at or after 36 weeks
Multiple pregnancy