动脉外膜炎

例句：

1. 1. He was diagnosed with aortic aneurysm and underwent surgery to treat it.
   他被诊断出主动脉瘤并接受了手术来治疗它。
2. 2. During the operation, the surgeon performed extracorporeal circulation to maintain his vitalsigns.
   在手术期间，外科医生执行了体外循环以维持他的体征。
3. 3. The patient was put on extracorporeal membrane oxygenation for several days until his condition improved.
   患者被置于体外膜氧合治疗几天，直到他的状况有所改善。