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Left ventricular outflow tract after Kawashima intraventricular rerouting.
Shigemitsu Iwai1, Hajime Ichikawa, Norihide Fukushima
1Department of Cardiovascular Surgery, Osaka Medical Center and Research Institute for Maternal and Child Health, 840 Murodo-cho, Izumi, Osaka 594-1101, Japan. iwai@mch.pref.osaka.jp
Asian Cardiovascular & Thoracic Annals
|October 4, 2007
Summary
Long-term outcomes after Kawashima intraventricular rerouting for Taussig-Bing anomaly show favorable results. While some patients developed left ventricular outflow tract obstruction, many maintained good function years post-surgery.
Area of Science:
- Pediatric Cardiology
- Congenital Heart Surgery
- Cardiac Physiology
Background:
- Kawashima intraventricular rerouting is used for complex congenital heart defects like the Taussig-Bing anomaly.
- Long-term assessment of left ventricular outflow tract (LVOT) obstruction after this procedure is crucial.
Purpose of the Study:
- To evaluate the late clinical results and LVOT dimensions following Kawashima intraventricular rerouting for Taussig-Bing anomaly.
- To determine the incidence and severity of long-term LVOT obstruction.
Main Methods:
- Retrospective analysis of 6 pediatric patients undergoing Kawashima intraventricular rerouting.
- Assessment of LVOT dimensions, specifically the tricuspid valve to pulmonary valve distance, in relation to normal aortic annulus diameter.
- Evaluation of long-term clinical outcomes, including survival and development of LVOT obstruction.
Main Results:
- All patients survived the initial operation; one died from chronic heart failure 4 months post-repair.
- Three patients (50%) had no significant LVOT obstruction 15-31 years after repair.
- Two patients developed significant LVOT obstruction at 9 and 14 years; one required successful baffle revision.
Conclusions:
- Late results of Kawashima intraventricular rerouting for Taussig-Bing anomaly are generally favorable.
- While LVOT obstruction can occur, effective management and surgical revision are possible.
- This surgical technique offers a viable option for complex congenital heart disease with acceptable long-term outcomes.
