bidirection superior cavopulmonary anastomosis

例句：

1. 1.The surgery aims to improve the patient's survival rate after a heart attack.
   该手术旨在提高患者心脏梗死后的生存率。
2. 2.This technique is particularly beneficial for patients with severe pulmonary hypertension.
   这种技术特别有利于患有严重肺高血压的患者。
3. 3.The bidirectional superior cavopulmonary anastomosis has been shown to reduce mortality rates in certain high-risk populations.
   双向上腔静脉吻合术已被证明在特定高风险人群中能降低死亡率。