Among the 9 fatal cases (0.7%) in the study, 5 succu mbed to low card iac output, 2 to severe pulmonary infection, 1 to perfusive lung injury, and 1 t o pulmonary hypertension crisis.

• 本组手术死亡 9例 (0 7%25 ) ,其中 5例因术后低心输出量综合征 ,2例因严重肺感染 ,1例因灌注肺 ,1例因肺高压危象。