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Asian Cardiovasc Thorac Ann 2007;15:367-370
© 2007 Asia Publishing EXchange Ltd

ORIGINAL CONTRIBUTIONS

Left Ventricular Outflow Tract after Kawashima Intraventricular Rerouting

Shigemitsu Iwai, MD, Hajime Ichikawa, MD, Norihide Fukushima, MD, Yoshiki Sawa, MD

Division of Cardiovascular Surgery, Osaka University Graduate School of Medicine, Osaka, Japan

For reprint information contact: Shigemitsu Iwai, MD, Tel: 81 72 556 1220, Fax: 81 72 556 5682, Email: iwai{at}mch.pref.osaka.jp, Department of Cardiovascular Surgery, Osaka Medical Center and Research Institute for Maternal and Child Health, 840 Murodo-cho, Izumi, Osaka 594-1101, Japan.

Left ventricular outflow tract obstruction is a concern in the long term after Kawashima intraventricular rerouting for Taussig-Bing anomaly. This study assessed the late results and left ventricular outflow tract dimensions after intraventricular rerouting for Taussig-Bing anomaly in 6 children. Age at operation ranged from 8 months to 7 years. The shortest distance from the tricuspid valve to the pulmonary valve ranged from 8 to 18 mm, which was 79%–139% of the normal aortic annulus diameter. All patients survived the operation, but one died of chronic heart failure 4 months after repair. Three patients had no left ventricular outflow tract obstruction 15 to 31 years after repair, and 2 had significant obstruction at 9 and 14 years. One patient underwent successful revision of the intraventricular baffle; the distance between the tricuspid and pulmonary valves was 16 mm (108% of the normal aortic annulus) although it had been 8 mm (79%) at the initial repair. Late results of intraventricular rerouting were considered favorable.






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