单心室是一组复杂性先天性心脏病 ,在实施腔 肺分流术前 ,其主要病理生理改变是心室容量超负荷及随之发生的心室几何形态改变、功能减退 ,这些病理生理改变随患者年龄增长而呈加重趋势。早期实施腔 肺分流术以减轻心室的容量超负荷将更有利于术后的心脏功能恢复、心脏几何形态的逆转、改善预后。左室型单心室、残余心腔小、无房室瓣反流等亦是良好预后的有利因素 Single ventricle is a group of complex congenital heart disease, before the implementation of luminal shunt, the main pathophysiological changes are ventricular volume overload and consequent changes in ventricular geometry, dysfunction, these pathophysiological changes with the patient’s age Growth is increasing trend. Early implementation of luminal shunt to reduce ventricular volume overload will be more conducive to postoperative recovery of cardiac function, cardiac geometry reversal, improve prognosis. Left ventricular single ventricle, small residual heart chamber, atrioventricular valve regurgitation is also a favorable prognostic factor