Transcatheter Laser-Assisted Balloon Valvulotomy as Primary Treatment in Newborn with Pulmonary Atresia and Intact Ventricular Septum
DUANGMANEE LAOHAPRASITIPORN, M.D.*, APICHART NANA, M.D.*, NITHI MAHANONDA, M.D.**
Affiliation : * Division of Pediatric Cardiology, Department of Pediatrics, **Her Majesty's Cardiac Centre, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok 10700, Thailand.
Abstract We report our initial experience and the first case in Thailand in successfully per- forming transcatheter laser perforation of membranous pulmonary valve and subsequent balloon dilations of the valve in a 14-day-old baby with pulmonary atresia and intact ventricular septum. After the procedure, right ventricular angiograms revealed anterograde flow across the pul- monary valve. There was no major complication. Doppler echocardiography one week later demonstrated a pressure gradient across the pulmonary valve of 30 mmHg and right ventricular systolic pressure of 60 mmHg. Her peripheral oxygen saturation improved from 70's imme- diately after the procedure to 92-97 per cent at one-month after the procedure.
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