Ventricular outflow is distributed in a predictable fashion between the conduit and the left ventricular outflow tract, and AVB surgery reliably relieves AS.Stroke and renal dysfunction were uncommon.

• 心室流出分布是一种可预测带瓣管道和左心室流出道之间的因素；而且动脉瓣旁路术可以明确的减轻主动脉瓣狭窄.；手术引起的休克和肾功能不全并不常见