题目内容
改良Heller术的手术要点不包括
2022-03-18
A.切断食管下段一侧所有环行肌纤维
B.贲门部食管肌层切开长度不超过2cm
C.食管下段肌层切开长度至少应达8 ~10cm
D.常规做胃底折叠术以防胃-食管反流
E.术中应注意勿损伤胃-食管返折
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