[Right ventricular outflow tract reconstruction in two neonates with pulmonary atresia and intact ventricular septum].
Two neonates, aged 8 and 18 days, with pulmonary atresia and intact ventricular septum underwent right ventricular outflow tract reconstruction with an autologous pericardial transannular patch. Preoperative cardiac catheterization revealed a tripartite right ventricular morphology with suprasystemic right ventricular morphology with suprasystemic right ventricular systolic pressure (right ventricular to left ventricular peak pressure ratio was 1.2 in case 1 and 2.0 in case 2). Right ventricular volume was 73.5% of normal and 115% of normal respectively. Generous resection of the infundibular myocardium was done and a patch was inserted with the heart kept beating as the perfusate temperature of 32 degrees C. In case 1 a modified Blalock-Taussig shunt was added on the postoperative day 21, because of the insufficient growth of the right ventricle, but in case 2 prostaglandin E1 could be discontinued on the postoperative day 9.
Department of Cardiovascular Surgery, Shizuoka Children's Hospital, Japan.
M
M
Kitano
M
M
Yakota
I
I
Kyoku
H
H
Mizuhara
K
K
Sakamoto
I
I
Shimada
D005260:Female; D006346:Heart Septum; D006352:Heart Ventricles / Q000601:surgery*; D006801:Humans; D007231:Infant, Newborn; D008297:Male; D008722:Methods; D010496:Pericardium / Q000637:transplantation; D011651:Pulmonary Artery / Q000601:surgery*; D011664:Pulmonary Valve / Q000002:abnormalities* / Q000601:surgery