PAEDS - CARDIO, RESP, GI AND NEONATAL Flashcards
VSD
What are some complications of VSD?
- Increased risk of infective endocarditis > Abx prophylaxis during surgery
- AR, Eisenmenger’s syndrome + right heart failure
COARCTATION OF AORTA
What is the clinical presentation of coarctation of aorta?
How may it present if severe?
- Weak femoral pulses + radiofemoral delay
- Systolic murmur between scapulas or below L clavicle
- Heart failure, tachypnoea, poor feeding, floppy
- LV heave (LVH)
- Acute circulatory collapse at 2d as duct closes (duct dependent)
RHEUMATIC FEVER
What are the major criteria in rheumatic fever?
JONES –
- Joint arthritis (migratory as affects different joints at different times)
- Organ inflammation (pancarditis > pericardial friction rub)
- Nodules (subcut over extensor surfaces)
- Erythema marginatum rash (pink rings of varying sizes on torso + proximal limbs)
- Sydenham chorea
RHEUMATIC FEVER
What are the minor criteria in rheumatic fever?
FEAR –
- Fever
- ECG changes (prolonged PR interval) without carditis
- Arthralgia without arthritis
- Raised CRP/ESR
SUPRAVENTRICLAR TACHYCARDIA
What is the management of a supraventricular tachycardia?
- 1st line = Vagal stimulation (carotid sinus massage, cold ice pack to face)
- 2nd line = IV adenosine
- 3rd line = Electrical cardioversion
- Long term = ablation of pathway or flecainide
TOF
What are some risk factors?
- Rubella,
- maternal age >40,
- alcohol in pregnancy,
- maternal DM
SUPRAVENTRICLAR TACHYCARDIA
What is the ECG like?
- Narrow complex tachycardia (250-300bpm)
- WPW = delta wave (slurred upstroke to QRS) with a short PR interval
RESP OVERVIEW
What are some risk factors for respiratory infections?
- Parental smoking
- Poor socioeconomic status
- Male gender
- Immunodeficiency
- Underlying lung disease
BRONCHIOLITIS
What are some criteria for admission?
- Apnoea
- Severe resp distress (RR>60, marked chest recession, grunting)
- Central cyanosis
- SpO2 < 92%
- Dehydration
- 50–75% usual intake
BRONCHIOLITIS
What can be given as prevention against bronchiolitis?
Who would be given this?
- Monoclonal Ab to RSV = palivizumab as monthly IM
- Reduces hospital admissions in high-risk infants (preterm, cystic fibrosis, congenital heart disease)
PNEUMONIA
How can CXR indicate what the causative organism may be?
- Lobar consolidation (dense white area in a lobe) = pneumococcus
- Rounded air-filled cavities (pneumatoceles) + multi-lobar = S. aureus
PNEUMONIA
What is the management of pneumonia?
- Newborns = IV benzylpenicillin
- Older = co-amoxiclav
- erythromycin to cover for mycoplasma, chlamydia or if unresponsive
ASTHMA
What are the characteristics of asthma?
- Airflow limitation due to bronchospasm (reversible spontaneously or with Tx)
- Airway hyperresponsiveness to various triggers
- Bronchial inflammation
ASTHMA
What is classed as a severe asthma exacerbation?
- PEFR 33–50% predicted
- Unable to complete full sentences
- RR>50 (2-5y), or >30 (>5y)
- HR >130 (2-5y) or >120 (>5y)
- Signs of resp distress (chest recessions)
- SpO2 <92%
CYSTIC FIBROSIS
What is the pathophysiology of cystic fibrosis?
- Decreased Cl- excretion into airway lumen + increased reabsorption of Na+ into epithelial cells means less excretion of salt (+ so water) > increased viscosity of airway secretion
CYSTIC FIBROSIS
How does cystic fibrosis present in older children + adolescents?
- DM (pancreatic insufficiency)
- Cirrhosis + portal HTN
- Distal intestinal obstruction
- Pneumothorax or recurrent haemoptysis
- Sterility in males as absent vas deferens
CYSTIC FIBROSIS
What are some signs of cystic fibrosis?
- Low weight or height on growth charts
- Hyperinflation due to air trapping
- Coarse inspiration crepitations ± expiratory wheeze
- Finger clubbing
CYSTIC FIBROSIS
What are some typical causes of respiratory tract infections in cystic fibrosis?
- S. aureus
- H. influenzae
- Pseudomonas aeruginosa
- Bulkholderia cepacia associated with increased morbidity + mortality
ASTHMA
What are some risk factors for asthma?
LBW, FHx, bottle fed, atopy, male, pollution
VIRAL INDUCED WHEEZE
What are some risk factors?
Maternal smoking during/after pregnancy + prematurity
ASTHMA
What is the mechanism of action for theophyllines?
Relaxes bronchial smooth muscle + reduces inflammation
ASTHMA
What are the important side effects of ICS?
Oral thrush,
adrenal + growth suppression,
DM,
osteoporosis
ASTHMA
What are the important side effects of theophylline?
Vomiting,
insomnia,
headaches
PNEUMONIA
What are the common causes of pneumonia in infants + young children?
RSV most common,
pneumococcus #1 bacterial,
H. influenzae,
Bordatella pertussis,
chlamydia trachomatis
(S. aureus rarely but = serious)
PNEUMONIA
What are the common causes of pneumonia in children >5?
Pneumococcus,
mycoplasma pneumoniae,
chlamydia pneumoniae
MALABSORPTION
What are some causes of malabsorption?
- Small intestine disease = coeliac
- Exocrine pancreas dysfunction = CF
- Cholestatic liver disease, biliary atresia
- Short bowel syndrome (NEC, bowel removal)
- Loss of terminal ileum function (resection, Crohn’s, absent bile acid)
IBD
How do you induce remission in Ulcerative colitis?
Mild to moderate disease
- 1st line = aminosalicylate (e.g. mesalazine oral or rectal)
- 2nd line = corticosteroids (e.g. prednisolone)
Severe disease
- 1st line = IV corticosteroids (e.g. hydrocortisone)
- 2nd line = IV ciclosporin
IBD
How do you maintain remission in Ulcerative colitis?
What should be cautioned?
- PO/PR mesalazine, azathioprine or mercaptopurine
- Mesalazine can cause acute pancreatitis
COELIAC DISEASE
What is the consequence of the autoimmune response in coeliac disease?
- Autoantibodies in response to gluten exposure target epithelial cells of intestine > inflammation + atrophy of the intestinal villi > malabsorption of nutrients
COELIAC DISEASE
What are some complications of coeliac disease?
- Anaemias
- Osteoporosis
- Lymphoma (EATL)
- Hyposplenism
- Lactose intolerance
PYLORIC STENOSIS
What is the management of pyloric stenosis?
- Correct fluid + electrolyte disturbances (0.45% saline, 5% dextrose + K+ supplements) before any surgery
- Laparoscopic Ramstedt’s pyloromyotomy
APPENDICITIS
What are the signs of appendicitis?
- Low grade fever
- Abdominal pain aggravated by movement
- RIF tenderness + guarding (McBurney’s point)
- Rebound + percussion tenderness (precipitated by cough, jump)
- Rovsing’s sign = LIF pressure causes RIF pain
MECKEL’S DIVERTICULUM
What is Meckel’s diverticulum?
- Ileal remnant of the vitello-intestinal duct which contains ectopic gastric mucosa or pancreatic tissue
CONSTIPATION
What are some causes of constipation?
- Usually idiopathic
- Meds (opiates)
- LDs
- Hypothyroidism
- Hypercalcaemia
- Poor diet (dehydration, low fibre)
- Occasionally forceful potty training
CONSTIPATION
What are some red flags in constipation?
- Delayed passage of meconium = Hirschsprung’s, CF
- Failure to thrive = hypothyroid, coeliac
- Abnormal lower limb neurology = lumbosacral pathology
- Perianal bruising or multiple fissures = ?abuse
CONSTIPATION
What is the process of constipation and overflow diarrhoea?
- Prolonged faecal status = resorption of fluids = increase in size + consistency
- This leads to rectal stretching + reduced sensation > overflow + soiling (very smelly)
GORD
What are the investigations for GORD?
- Usually clinical but if atypical Hx, complications or failed Tx…
– 24h oesophageal pH monitoring
– Endoscopy + biopsy to identify oesophagitis
– Contrast studies like barium meal
GORD
What are some complications of GORD?
- Failure to thrive from severe vomiting
- Oesophagitis = haematemesis, discomfort on feeding or heartburn, Fe anaemia
- Aspiration > recurrent pneumonia, cough/wheeze
- Sandifer syndrome = dystonic neck posturing (torticollis)
GASTROENTERITIS
What are signs of clinical shock?
- Pale/mottled
- Hypotension
- Prolonged CRT
- Cold
- Decreased GCS
- Sunken fontanelle
- Weak pulses
- Anuria
GASTROENTERITIS
What are some complications of gastroenteritis?
- Isonatraemic + hyponatraemic dehydration
- Hypernatraemic dehydration
- Post-infective lactose intolerance (remove lactose + slowly reintroduce)
- Guillain-Barré
- Dehydration #1 cause of death
BILIARY ATRESIA
What are the investigations for biliary atresia?
- Serum split bilirubin = conjugated elevated
- USS abdo gold standard for Dx, laparotomy confirms
BILIARY ATRESIA
What is the management of biliary atresia?
- Kasai portoenterostomy (attach section of small intestine to opening of liver where bile duct attaches)
- Some will need full liver transplant
- Success decreases with age so early Dx crucial
NEONATAL HEPATITIS
What are some investigations for neonatal hepatitis syndrome?
- Deranged LFTs with raised unconjugated + conjugated bilirubin
- Liver biopsy = multinucleated giant cells + Rosette formation
NEONATAL HEPATITIS
What are 4 main causes of neonatal hepatitis?
- Congenital infection
- Alpha-1-antitrypsin (A1AT) deficiency
- Galactosaemia
- Wilson’s disease
NEONATAL HEPATITIS
What are the complications of galactosaemia?
- Rapidly fatal course with shock, DIC + haemorrhage due to gram -ve sepsis
- Liver failure, cataracts + Developmental delay if untreated
NEONATAL HEPATITIS
What is the management of galactosaemia?
- Stop cow’s milk, breastfeeding C/I
- Dairy-free diet
- IV fluids
NEONATAL HEPATITIS
What is Wilson’s disease?
- Reduced synthesis of caeruloplasmin (normally binds to copper + allows it to be excreted with bile)
NEONATAL HEPATITIS
How does Wilson’s disease present?
Sx of copper accumulation
- Eyes (Kayser-Fleischer rings)
- Brain (Parkinsonism + psychosis)
- Kidneys (vit D resistant rickets)
- Liver (jaundice)
NEONATAL HEPATITIS
What are the investigations for Wilson’s disease?
- 24h urine copper assay (high),
- serum caeruloplasmin (low)
FAILURE TO THRIVE
What are some causes of malabsorption?
- Cystic fibrosis
- Cow’s milk protein intolerance
- Coeliac disease
- IBD
- Short gut syndrome
CMPA
What is the management for cows milk protein allergy (CMPA)?
- Breastfeeding mothers should avoid dairy
- Replace formula with extensive hydrolysed formula
- Amino acid-based formula if severe or no response to eHF
- Food challenge may be performed in hospital setting
KWASHIOKOR
what are the clinical features?
- growth retardation
- diarrhoea
- anorexia
- oedema - defining characteristic
- skin/hair depigmentation
- abdominal distension with fatty liver