pylorectomy

例句：

1. 1. The patient underwent a pylorectomy to treat his chronic stomach pain.
   这名病人接受了胃切除术来治疗他的慢性胃痛。
2. 2. The surgeon performed a gastrectomy during the operation.
   外科医生在手术中进行了胃切除术。
3. 3. The patient recovered well after undergoing a gastrectomy.
   这名病人在完成胃切除术后恢复得很好。