Transient hypertrophic cardiomyopathy with first degree atrioventricular block and QT prolongation. Report of one case.
Transient asymmetric hypertrophy of the interventricular septum was found by echocardiography in a 20-day-old infant whose mother was not diabetic. The electrocardiogram showed first-degree atrioventricular block and QT prolongation. Electrocardiograms on all first degree relatives were within normal limits. With the medication of propranolol, the infant did well. Both echocardiographic and electrocardiographic findings returned to normal two months later (Acta Paed Sin 1993; 34:38-44).
Lee
J H
JH
Department of Pediatrics, Mackay Memorial Hospital, Taipei, Taiwan, R.O.C.
Hung
H Y
HY
Chen
M R
MR
D002312:Cardiomyopathy, Hypertrophic / Q000000981:diagnostic imaging / Q000503:physiopathology*; D004452:Echocardiography; D004562:Electrocardiography; D006327:Heart Block / Q000000981:diagnostic imaging / Q000503:physiopathology*; D006801:Humans; D007231:Infant, Newborn; D008297:Male