英语语法分析

Methods NLA was carried out in 972 cases, including direct laryngoscopic operation in 574 patients, esophageal surgery in 143 patients, middle ear- mastoid operation in 255 patients.

方法对574例直达喉镜、143例食道镜、255例中耳-乳突手术行安定镇痛剂辅助麻醉。结果所有972例手术麻醉效果良好，尤麻醉意外和手术并发症。