Cardiology Flashcards
Inheritance of long QT syndrome
autosomal dominant!
homozygous = Jervell Lange-Neilson (assoc with sensorineural hearing loss)
heterozygous = Romano-Ward
Treatment of long QT
avoid exercise, beta-blockers
What is the axis on ECG of a child with an AVSD?
left-axis deviation
in what congenital heart disease would you see left axis deviation?
AVSD, small RV (tricuspid atresia), Noonan syndrome (no clear reason why…)
what are the signs on ECG of LV hypertrophy
Tall R waves in V6, deep S waves in V1
ECG signs of RV hypertrophy
Tall R waves in V1, deep S waves in V6, Q waves in V1, upright T waves in V1 (after day 5 of life - should be flipped until about age 9)
Palivizumab - what is it
monoclonal IgG antibody against RSV
recurrence rate of congenital heart disease
4% up to 10% (higher if left-sided)
Complications of Fontan
protein-losing enteropathy, plastic bronchitis
What cardiac patients need antibiotic prophylaxis?
those with a high risk lesion (Cyanotic, repaired with prosthetic material in last 6 months, persistent defects - leak) undergoing a high risk procedure (dental procedure, non-infected gut/GU procedure)
ECG findings - pericarditis
diffuse ST elevation, PR depression, T wave flattening eventually T wave inversion
Main cause of CHF - first week of life
- obstructions! hypoplastic left heart (d3-5), severe aortic stenosis, coarctation (d7-10)
- asphyxia
- uncontrolled tachycardia (SVT >24hrs)
- severe mitral/tricuspid regurgitation
Main cause of CHF - week 2-6 of life
Things that cause left to right shunting: VSD, AVSD, PDA
NOT ASD!
Main cause of CHF - older children
pump failure!
dilated cardiomyopathy, myocarditis, tachycardia
3 signs of CHF in infants
tachycardia, tachypnea, hepatomegaly
Risk of recurrence of congenital heart disease (isolated case) in sib?
2-3%
CHD in Turner syndrome (name 3)
- coarctation of the aorta, bicuspid aortic valve, aortic stenosis
CHD in fetal alcohol syndrome (name 3)
VSD, ASD, TOF
CHD in VACTERL
ASD, VSD, PDA (65-85%)
CHD in Trisomy 13 (patau) - name > 3
PDA, VSD, ASD, valvular disease, coarctation of the aorta, complex defects
CHD in Trisomy 18
VSD, polyvalvular disease (~100%)
Duct dependent for pulmonary circulation CHD
- pulmonary atresia, critical pulmonary stenosis, pulmonary atresia with intact septum, TOF
Duct dependent for systemic circulation CHD
Severe aortic stenosis, interrupted aortic arch, hypoplastic left heart syndrome
CHD - duct required for “mixing”
TGA