Paediatrics - General & Cardio Flashcards
Paeds systems review
BIGDAD
- Birth/ pregnancy
- Immunisations
- Growth
- Diet (input & output)
- Allergies
- Development
Adolescent systems review
HEADSS
- Housing/ home/ environment
- Education/ employment
- Activities
- Drugs
- Sexuality
- Suicide/depression
Denver development screening questions
Smiling (6wks) Turns to sound (6mnths) Sitting (9mnths) First words (18mnths) Walking (18mnths) Stairs (3yrs) 3 word sentences (3yrs)
Closure of foramen ovale
Usu in first few breaths (due to LA pressure increase due to breathing)
Closure of ductus arteriosus
Usu w/i first few hrs to days, often Day 2-3 (becomes ligamentum arteriosum)
- Prostaglandin – ‘PROPs’ open the ductus arteriosus (^pO2 lowers PGE2)
- Indomethacin (prostaglandin inhibitor) – ‘INvolutes’ the ductus arteriosus
DA connects pulmonary artery to descending aorta
Cyanotic congenital HD causes
5T + H
- Tetralogy of Fallot
- Transposition of great arteries
- Total anomalous pulmonary drainage
- Truncus arteriosus
- Tricuspid atresia
- Hypoplastic left heart
Cyanotic heart disease
<85% SaO2 - caused by not enough oxygenated blood reaching tissues/ too much deoxygenated blood reaching tissues
Usu R –> L shunt
Acyanotic congenital HD causes
4 'non-Ts' - ASD - VSD - AVSD (can have both acyanotic & cyanotic features) - PDA (Usu L --> R shunt)
Ductal dependent congenital HD
Circulation is dependent on a patent ductus arteriosus (PDA) to preserve systemic circulation (L) or pulmonary circulation e.g. TOF w pulmonary atresia or TGA
–> may rapidly decline on 2-3 Day due to closure of ductus arteriosus
TOF features
PROV
- Pulmonary stenosis
- RV hypertrophy
- Overriding aorta (sits directly over VSD instead of LV = blood from both ventricles)
- VSD
TOF risk factors
Downs syndrome ("fall DOWN a lot" due to tet spells) DiGeorge syndrome - chromosome 22 deletion ("Sir George di Fallot")
Onset of cyanosis wks/mnths after birth, difficulty feeding, failure to thrive, tet spells, harsh ejection systolic murmur over pulmonary area (identified w/i first 2mnths of life), clubbing
TOF
TOF murmur
harsh EJS over left sternal edge (pulmonary area)
Cyanotic child squats to avoid fainting
Tet spell in TOF (cyanotic for 15mins due to vasospasm, may lead to syncope, child often squats to increase venous return to heart, usu self-limiting but can lead to MI, stroke or death if untreated)
Boot-shaped heart on CXR (coeur-en-sabot)
TOF (“booted out of the TOF”)
Term baby presents w cyanosis & feeding difficulty at Day 2-3
TGA (usu ductal dependent according to Monash EMQs)
Early cyanosis, single S2, usu no murmur (may be flow murmur)
TGA
TGA features
switching of great vessels (aorta –> RV, pulmonary artery –> LV), only compatible w life if ASD, VSD or PDA