Paeds from lectures Flashcards
What are the red flags for gross-motor development?
Not sitting by 12 months
Not walking by 18 months
It is important to rule out muscular dystrophy in boys who are not walking by 18 months
What are the red flags for fine motor development?
Hand preference before 18 months
- could indicate a neurological condition such as cerebral palsy
What are the red flags for speech and language?
No clear words by 18 months. commonly hearing problem but can be related to a learning disability, autism, or an isolated speech and language problem
What are the red flags for social development?
No response to carers’ interactions by 8 weeks
No smiling by 3 months
Not interested in playing with with peers by 3 year
Lack of smiling might be a sign of visual impairment
Children who are later diagnosed with autism/LD may have shown signs of early social developmental delay
What are the red flags for child growth and development?
- Regression of development
- Poor health/growth
- Significant family history
- Findings on examination e.g. microcephaly, dysmorphic features
- Safeguarding indicators - known to social care, unexplained injuries
What must be checked in boys who fail to walk by 18 months?
Creatinine kinase - it is elevated following muscular injury, can be indicative of Duchenne’s
What inheritance pattern is seen in Duchenne’s?
X-linked recessive
How do you test for Duchenne’s?
- CK test
- Genetic test with blood sample
- Muscle biopsy may be required
What is global developmental delay?
Delay in two or more developmental areas
A boy is 20 months old and is not yet walking. What is on the list of differentials?
- Muscular dystrophy
- Rickets
- Cerebral palsy
- Hip dysplasia
- Neurological (spinal lesion causing mixed UMN, LMN)
- Environmental (neglect, safeguarding)
What are the red flags for a vomiting child?
- Bile-stained vomit
- Haematemesis
- Projectile vomiting
- Abdominal pain on movement
- Blood in the stool
- Severe dehydration
- Headache or seizures
- Failure to thrive
What is bile stained vomit indicative of?
intestinal obstruction
What does haematemesis indicate?
peptic ulceration, gastritis, oesophageal varices
What does projectile vomiting indicate?
Pyloric stenosis
Abdominal pain on movement indicates what?
Surgical abdomen - eg appendicitis
Blood in the stool indicates what?
intussusception, gastroenteritis, nec
Which microorganisms are known to cause bloody stools?
E. Coli
Salmonella
What is haemolytic uraemic syndrome?
Triad of:
- Thrombocytopenia
- Microangiopathic haemolytic anaemia
- Acute renal failure
Following infection with a particular strain of E.Coli, children may present with jaundice and pallour.
Severe dehydration in a vomiting child might indicate what?
- DKA
- Severe gastroenteritis
- Systemic infection
Headache and seizures when combined with vomiting are red flags for what?
raised ICP
Failure to thrive and vomiting can be due to?
coeliac disease or GORD
What are the cardinal findings in pyloric stenosis?
- Metabolic alkalosis
- Dehydration (with abnormal kidney function)
- Hypochloraemia
- Hypokalaemia
What does metabolic alkalosis do to bicarbonate levels?
Metabolic alkalosis elevates bicarbonate levels`
How do you diagnose pyloric stenosis?
- U+E
- ABG
- USS abdo (diagnostic)
How do you treat pyloric stenosis?
Rehydration and correcting electrolyte imbalance Then pyloromyotomy (Ramstedt's)
What would you find on examination of abdo of child with pyloric stenosis?
Visible gastric peristalsis and palpable mass on test feed
How would GORD present in a baby?
Vomiting
feeding difficulties
failure to thrive
How is GORD investigated in child?
- pH impedence study
How is GORD managed in a child?
Conservatively
- smaller and more frequent feeds
- feed thickeners
- optimise position
How does CMPA present in children?
- chronic vomiting
- eczema
- flatulence
- bloody stools
- diarrhoea/constipation
How is CMPA investigated?
skin prick/specific IgE antibody test
how do you treat CMPA in child?
cow’s milk elimination from diet
hypoallogenic infant formula
mother avoids cow’s milk
how does intestinal obstruction present in a child?
acute on chronic vomiting - bilious vomit,
constipation
abdo pain
what can cause intestinal obstruction?
- malrotation (esp in first week of life)
- hirschprung’s
- meconium ileus
- necrotising enterocolitis
How is malrotation diagnosed?
symptoms include bilious vomiting,
Urgent upper GI contrast study with barium
Why is malrotation dangerous?
Can lead to volvulus and infarction of midgut
SMA blood supply to small intestine can be compromised - infarction
How is malrotation treated
surgical
What is hirschprung’s
absence of ganglionic cells from myenteric plexus of large bowel - results in narrow contracted segment of bowel
How does hirschprung’s present?
failure to pass meconium within 48hrs of life
what is hirschprung’s associated with?
down’s
what are the clinical features of hirschprung’s?
abdo distension
later, bile stained vomit
can lead to enterocolitis from C. Diff infection
how is hirschrpung’s diagnosed?
suction rectal biopsy
How is hirschprung’s treated?
Enema
Surgical resection of affected colon
What is meconium ileus?
blockage of the distal ileum due to abnormally thick and impacted meconium. usually due to CF
how might meconium ileus present?
- failure to pass meconium in the first 48hrs
- bilious vomit
- abdo distension
how is meconium ileus diagnosed?
XRay Abdo
how is meconium ileus treated?
stop feeding, drain bile, enema, if enema fails to disimpact stool, surgery
what is necrotising enterocolitis? (NEC)
portion of bowel dies. allows pathogenic colonisation of normal commensal bacteria. can be linked to E. Coli usually occurs in premature infants
how is nec treated?
Nil PO
Prevention: breastfeeding and probiotics
antibiotics, surgery
How does NEC present?
blood in stool
abdo distension
problems feeding
what does bile stained vomit in first week of life indicate?
malrotation until proven otherwise
What is the difference between marasmus and kwashiorkor?
marasmus is malnutrition of all nutrients. insufficient energy intake. symptoms include weight loss, failure to thrive etc
kwashiorkor is insufficient protein intake with adequate energy intake
what is intusussception?
telescoping of proximal bowel into distal bowel
commonly, ileum moves into caecum via ileocaecal valve
when does intuss usually present?
3months to 2 years, more common in boys
what are symptoms of intus?
- severe paroxysmal pain
- draws knees up to chest, pale
- vomiting - may become bilious
- redcurrant jelly stool (blood and mucus)
- sausage shaped RUQ mass (upper quadrant!)
how is intuss investigated?
ultrasound abdo diagnostic (doughnut/target sign)
xray abdo would show distension with absence of air in large bowel
how is intuss treated?
rectal air insufflation(aka pneumatic reducation enema) . analgesia, IV fluids if shocked, laparotomy sometimes
IV antibiotics
what is meckel’s diverticulum?
presence of vitelline duct (usually involutes during foetal development)
how does meckel’s present?
can be asymptomatic can cause - GI bleeding - volvulus - intusussception - umbilical discharge
how is meckel’s treated?
surgical resection
what is the vitelline duct?
joins the yolk sac to the lumen of the midgut in the foetus
what is toddler’s diarrhoea?
chronic non-specific diarrhoea in toddlers
how does toddler’s diarrhoea present
colicky pain
loose stool with undigested food (“peas carrots”)
inc flatus
abdo distension
how is toddler’s diarrhoea managed?
reassurance
increased fat and fiber intake
reduced milk intake
loperamide may be necessary
what is biliary atresia?
progressive fibrosis and oblitertion of intra and extrahepatic biliary tree
why is biliary atresia bad?
chronic liver failure and death within 2 years
how does biliary atresia present?
fine in first 2 days of life, then jaundice (obstructive) = pale stools, dark urine
does biliary atresia cause conjugated or unconjugated bilirubinaemia?
conjugated bilirubinaemia
what are two risk factors for biliary atresia?
down’s or CFC1 mutation
how is biliary atresia investigated?
- Measure transcutaneous bilirubin - conjugated bilirubin would be raised.
- LFT’s would be abnormal.
- ERCP imaging would fail to outline a normal biliary tree.
how is biliary atresia treated?
Kasai procedure
What does coffee-bean sign on abdo x ray indicate?
sigmoid volvulus
How might a strangulated hernia appear in a child?
bilious vomiting
what are the signs of inguinal hernia in a child?
can’t get above it, reducible, often indirect in children. needs surgical repair
what are two types of hernias that present in children?
diaphragmatic and inguinal
how are hernias treated?
surgically
how do diaphragmatic hernias present?
tachypnoea, tachycardia, failure of the lungs to develop correctly,
cyanosis
what investigations would you do for IBD
- endoscopy with biopsy
- low serum albumin (protein loss)
- microcytic anaemia
- high ESR, CRP
how can crohns and uc be differentiated macroscopically?
crohn’s = skip lesions, cobblestoning, strictures
uc = continuous, mucosal ulceration
microscopic differences between uc and crohns
crohns = non-caseating granulomas, transmural inflammation
uc = no granulomas, submucosal
How is Crohn’s treated?
Enteral nutrition (eg Modulen) for 6-8 weeks glucocorticoids
How is remission maintained in Crohn’s
Azathioprine or mercaptopurine
How is UC treated?
glucocorticoids aminosalicylates (mesalazine) (used in remission maintenance)
what is coeliac disease?
AI response by GALT to gliadin
which antibodies are found in Coeliac disease?
Anti-TTG
endomysial antibodies
anti-gliadin
how is coeliac diagnosed?
serum anti-TTG/endomysial.
if positive, endoscopy and biopsy (must have 6 weeks of gluten in diet)
what are the common viruses that cause gastroenteritis?
rotavirus
adenovirus
norovirus
enterovirus
what are common bacterial causes of gastroenteritis?
Campylobacter
salmonella
shigella
e coli
how does gastroenteritis present?
acute onset d+v, fever lethargy abdo pain poor feeding!!! dehydration!!!
how is gastroenteritis managed?
- oral rehydration soluition
- continue breastfeeding
- NG tube fluids
- hospitalisation if shocked
what can develop after gastroenteritis?
post-infective lactose intolerance
what is mesenteric adenitis?
swollen lymph glands in abdomen - causes pain
usually due to viral infection (can be bacteria)
what are the symptoms of mesenteric adenitis?
pain fever d+v prodromal sore throat/cold cervical lymphadenopathy
how is mesenteric adenitis treated?
analgesia and hydration
list 3 differential diagnoses in a vomiting child?
- inguinal hernia
- irritable bowel syndrome
- abdominal migraine
how might an inguinal hernia present?
- reducible lump in groin
- if strangulated - severe pain, nausea, vomiting, off food
how is inguinal hernia investigated?
clinical exam - rule out testicular torsion
how does irritable bowel syndrome present?
pain relieved on defecation, bloating, mucus in stool, lethargy, clinical diagnosis (after ruling out other diagnoses)
how is IBS treated?
small regular meals, eliminate triggering foods
what is abdominal migraine?
pain lasting 2-72 hours, nausea, vomiting, anorexia, pallour
how is abdo migraine treated?
analgesia, avoid triggers, prophylaxis
abdo migraine investigations?
search for triggers, rule out DDs
what is kernicterus?
high levels of unconjugated bilirubin deposit in basal ganglia.
what does kernicterus cause?
encephalopathy with seizures
choreoathetoid cerebral palsy
what 2 categories of disorders cause pathological jaundice in first 24 hrs?
congenital infection
haemolytic disorders
which haemolytic disorders can cause jaundice in first 24hrs?
rhesus incompatibility ABO incompatibility G6PD spherocytosis pyruvate kinase deficiency
which congenital infections can cause jaundice in first 24 hrs?
- toxoplasmosi
- CMV
- rubella
- syphilis
- herpes
- hepatitis
(TORCH infections)
what is physiological jaundice?
from 24 hrs to 2 weeks, due to breakdown of fetal haemoglobin
how is physiogical jaundice treated?
phototherapy
exchange transfusions
what is the type of jaundice that occurs in first 24 hrs?
pathological
always unconjugated
can be caused by SEPSIS
what can sepsis cause in a newborn?
jaundice, esp if first 24hrs
what are the TORCH infections?
Toxoplasmosis other (eg syphilis) rubella cytomegalovirus hepatitis/herpes
what are the causes of jaundice after 14 days?
biliary atresia hypothyroidism galactosaemia UTI gilbert syndrome
what can pyloric stenosis also cause?
jaundice
how is pathological jaundice investigated?
torch screening
coomb’s test
how does phototherapy work?
light converts bilirubin to water soluble pigment
give 3 causes of unconjugated hyperbilirubinaemia
physiological jaundice breast milk jaundice infection hypothyroidism haemolytic cause
give 2 causes of conjugated hyperbilirubinaemia
biliary atresia
neonatal hepatitis syndrome
what is the triad of symptoms for choledocal cyst?
intermittent abdo pain
jaundice
RUQ mass
if untreated, what do choledocal cysts cause?
cirrhosis and enlarged liver
- ascites
- signs of portal hypertension
what are choledocal cysts?
cystic dilatation of bile ducts
what is neonatal hepatitis syndrome?
caused by viruses/metabolic syndromes
what does neonatal hepatitis cause?
hepatomegaly and splenomegaly
how does neonatal hepatitis present?
jaundice, failure to thrive, dark urine (conjugated)
what is the difference in presentation between neonatal hepatitis and physiological jaundice
physiological jaundice is unconjugated therefore normal urine
hepatitis presents with dark urine
Is PKU AD or AR?
Autosomal recessive
What are the symptoms of PKU?
- Seizures
- Skin rashes
- Microcephaly
- Musty odour to breath, skin, urine
- Fair hair/blue eyes
How is PKU diagnosed?
Heelprick (Guthrie test)
What is the treatment for PKU?
Low protein diet and amino acid supplements.
Regular phenylalanine level checks
No aspartame as this is converted into phenylalanine.
What does the heelprick test test for?
- Sickle Cell
- CF
- Hypothyroidism
- Metabolic conditions (PKU etc)
What can cause wheezing in a child?
- Asthma
- Bronchiolitis
- Viral induced wheeze
- Pneumonia
What can cause stridor in a child?
- Croup
- Epiglottitis
- Bacterial tracheitis
- Diptheria
- Laryngomalacia
- Inhaled foreign body
- Angioedema/anaphylaxis
What is head bobbing a sign of?
respiratory distress
What changes happen to the airway in asthma?
- bronchospasm
- mucosal swelling and inflammation
- increased mucous production
how does asthma present?
- intermittent dyspnoea
- wheeze
- cough
- diurnal variation
- decreased exercise tolerance :/
- decreased sleep quality
how is asthma diagnosed?
- clinical
- FEV1/FVC <0.7
- reversibility with bronchodilator
- FeNO >=35ppb
What are the signs of severe asthma attack
- unable to talk
- use of accessory muscles
signs of life threatening asthma attack?
- silent chest
- bradycardia
- poor resp effor
- altered consciousness
- cyanosed
how is an asthma attack managed acutely?
- ABCDE
- High flow O2
- Nebulised Salb
- IV hydrocortisone
- ipratropium bromide nebs
- MgSO4
- salbutamol IV
what must be monitored if you give IV salbutamol?
cardiac monitoring for hypokalemia
How is hyperkalaemia treated?
insulin and dextrose
how is chronic asthma managed in >5
- salbutamol (SABA)
- low dose ICS
- salmeterol (LABA)
- increase ICS
- montelukast (oral leukotriene receptor antagonist)
- increase ICS to high dose
how is asthma managed in <5
salbutamol, ICS, oral montelukast
what pathogen causes bronchiolitis
most common LRTI in children
usually RSV, or parainfluenza virus
how does bronchiolitis present?
coryza - runny nose congestion etc
breathlessness
poor feeding
what are the signs of bronchiolitis?
- fine end respiratory crackles
- high pitched wheeze
- cyanosis (on feeding)
How is bronchiolitis diagnosed?
PCR analysis of nasal secretions
CXR may show hyperinflation
what does wheeze and inspiratory crackles indicated?
bronchiolitis!!!
what causes airway narrowing and alveolar collapse in bronchiolitis?
mucus production and inflammation
what conditions make bronchiolitis worse?
Aged less than 2y with:
- down’s
- CF
- prematurity
a baby with bronchiolitis has <75% normal intake of milk. is this bad?
<75% is bad
<92% sats is bad
how is bronchiolitis prevented in at-risk children?
palivizumab, once monthly vaccination
what is palivizumab
monoclonal antibody against RSV
- CF
- Down’s
- Premature
- Immunodeficient
- Chronic lung disease
how is bronchiolitis treated?
- nebulised saline
- NG/orogastric feed
- humidified oxygen
- IV fluids
what does hepatosplenomegaly, pallour, fever suggest?
leukaemia and anaemia
what does hepatosplenomegaly and high WCC indicate?
leukaemia
which leukaemia is more common?
Acute lymphoblastic leukaemia
Acute myeloid leukaemia is less common
what blood test results indicate aplastic anaemia?
pancytopaenia
what substances are elevated in tumour lysis syndrome
PULP:
Potassium
Uric acid
Lactate dehydrogenase
Phosphate
what happens in acute leukaemia?
In acute leukaemia the white cells undergo a genetic change causing failure of differentiation, dysregulated proliferation and clonal expansion. The bone marrow fails to produce normal cells such as HB, neutrophils or platelets.
how are patients with ALL with high WCC treated?
priority is to prevent tumour lysis syndrome
- hyperhydration
- allopurinol
- platelet transfusion
a child with ALL develops a fever. Which is the best antibiotic?
broad-spectrum
= gentamycin/Piptazobactam
what is CFTR?
membrane protein/chloride channel
found in lungs and pancreas
which mutation causes CF?
DeltaF508 on chromosome 7
what are the key signs and symptoms of CF?
Thick pancreatic and biliary secretions - causes blockage of the ducts
Congenital absence of vas deferens
meconium ileus
why are CF patients more likely to have recurrent infections?
thick secretions - reduced clearance - bacterial colonisation
what might you see on examination of patient with CF?
- nasal polyps
- finger clubbing
- failure to thrive
- salty tasting baby
- foul smelling floaty stool
what is the gold standard for CF diagnosis?
chloride sweat test
what genetic testing is available for CF in fetus?
genetic testing for CFTR gene via amniocentesis
which bacteria are CF pts particularly susceptible to?
Staph, pseudomonas
how is staph treated in CF?
prophylactic fluclox
how is pseudomonas treated in CF?
nebulised Abx - tobramycin
Oral ciprofloxacin
How are pancreatic enzymes replaced in CF?
creon tablets and high calorie diet
what is dornase used for?
break down of DNA material in secretions, makes secretions less viscous and easier to clear
how is male infertility treated in CF?
testicular sperm extraction
what is epiglottitis caused by?
haemophilus influenzae B
what are the signs of epiglottitis?
drooling sore throat dysphagia stridor!! fever sepsis
how does epiglottitis look like with laryngoscopy?
beefy red stiff epiglottis
how does epiglottitis present on XR of neck?
thumb sign
how is epiglottitis treated?
ITU to protect the airway
- nasotracheal tube insertion
IV ceftriaxone + dexamethasone
which antibiotic is used for epiglottitis?
IV Ceftriaxone
with what antibiotic are close contacts of epiglottitis given prophylaxis?
rifampicin
a child from a foreign land, drooling, unable to speak or swallor, INSPIRATORY STRIDOR, symptoms improve by sitting upright and leaning forward. what is this/
epiglottitis
would you do a throat exam in a child with croup or epiglottitis?
no!!!
what is croup?
laryngo-tracheo-bronchiolitis
how does croup present?
children 6m-6y stridor barking cough hoarse voice coryzal
what virus causes croup?
parainfluenza virus causes an URTI and oedema in the larynx
how is croup treated?
dexamethasone 0.15mg/kg
Oxygen
nebulised budesonide
nebulised adrenalin
how does pneumonia present?
cough fever tachypnoea signs of resp distress hypotension, confusion, shock
what is the most common cause of pneumonia?
strep pneumoniae
which is the most common cause of pneumonia in neonates and unvaccinated infants?
Group B strep in neonates!!
when might Hib cause pneumonia?
unvaccinated child
what are the xray findings of staph aureus pneumonia?
pneumatoceles - round air filled cavities
consolidations in multiple lobes
which bacteria (causative of pneumonia) may also present with erythema multiforme?
mycoplasma pneumonia
- may develop red circular rash
what is the most common type of intussusception?
ileo-colic/ileo-caecal
what can act as a lead point in intussu?
lymph nodes
polyps
appendix
with what conditions is intus associated?
HSP
gastroenteritis
lymphoma
what would PR exam of patient with intuss show?
blood on glove (apparently pathognomonic)
what investigations would you do for pneumonia?
CXR - look for consolidation
Blood cultures
how do you treat pneumonia in neonates?
IV broad spectrum Abx
how do you treat pneumonia in older children?
1st line: amoxicillin (co-amox if complicated)
2nd line - erythromycin
how is mycoplasma pneumoniae treated?
mycoplasma = intracellular, must use macrolides eg erythromycin (covers atypical)
what is viral induced wheeze?
RSV/rhinovirus caused inflammation and oedema in the airway causes wheeze
how do you differentiate asthma from viral induced wheeze?
- less than 3 years of age
- no atopic history
- only occurs during viral infections (coryza, fever, cold like symptoms)
how is viral induced wheeze treateD?
supplementary oxygen
salbutamol
oral montelukast or steroid if salb not working
steroids if history of asthma
which organisms cause otitis media?
Strep pneumoniae
Hib
what are the symptoms of otitis media?
- fever
- pain
- otorrhoea
- generally unwell
what are the extracranial complications of otitis media?
mastoiditis
tympanic membrane perforation
what are the intracranial complications of otitis media?
meningitis
abscess
how is otitis media treated?
Analgesia,
Abx - amox/co-amox
how is recurrent otitis media treated?
grommet - keeps middle ear aerated and prevents fluid build up
When might a grommet be indicated?
recurrent otitis media
chronic otitis media and effusion
eustachian tube dysfunction
what is glue ear?
otitis media + effusion
what are the 3 types of hearing loss?
- conductive
- sensorineural
- mixed
what causes conductive hearing loss?
- glue ear
- ear wax
- perforated drum
- otitis media
how is sensorineural hearing loss treated?
hearing aids
cochlear implants
refer to paeds for tx
How is mixed hearing loss managed?
treat conductive cause and then offer hearing aid
what is mastoiditis?
middle ear inflammation leads to destruction of air cells in mastoid bone and abscess formation
how does mastoiditis present?
tender mastoid
protruding ear
how is mastoiditis treated?
hospitalisation
IV Abx
myringotomy (allows draining of fluid from middle ear)
mastoidectomy
what are the risks of mastoiditis?
meningitis
sinus thrombosis
it is a medical emergency
how is duchenne’s muscular dystrophy inherited?
x linked
what does sore throat in unvaccinated child and stridor suggest?
epiglottitis, caused by hib
what LFT result helps in the diagnosis of biliary atresia?
elevated conjugated bilirubin
other liver enzymes and bile acids are raised, but can’t be used to differentiate between different types of bilirubin