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近来用声门上喉切除术治疗声门上喉癌的治愈率不亚于全喉切除术,但常合并慢性误吸。Staple用X线电影照相证实误吸率达50%,由于误吸致慢性肺炎达33%,并有4%致死。为减少误吸,文献中有手术切开环咽肌及颈部食管肌肉,术中尽量保留喉上神经等方法,但效果均不确实。作者注意到,部分病例肿瘤并未累及整个会厌,且由于会厌的解剖特点肿瘤在粘膜下横向扩展范围不大,5mm的安全界线足矣。这样,某些声门上癌可保存1/3以上会厌用来形成新会厌便可防止误吸。作者在3年内做声门上喉切除会厌重建术14例,术中尽量保留大部分舌骨和缝侧大部分喉软骨,直视下切除肿瘤,对可疑边缘可做冰冻切
Recently, the treatment of supraglottic laryngeal cancer with supraglottic laryngectomy cure rate no less than total laryngectomy, but often associated with chronic aspiration. Staple with X-ray film photography confirmed that aspiration rate of 50% due to mistaken absorption of chronic pneumonia reached 33%, and 4% lethal. To reduce the risk of aspiration, there is a surgical procedure to cut the cricopharyngeal muscle and cervical esophageal muscle in the literature. The method of preserving the laryngeal nerve as much as possible during the operation is not available. The authors note that in some cases the tumor did not affect the epiglottis, and because of the anatomical features of the epiglottis, the tumor did not spread extensively across the submucosa and the 5 mm safety margin was sufficient. In this way, some supraglottic cancer can save more than 1/3 of epiglottis used to form a new epiglottic will prevent aspiration. The author in 3 years to do supraglottic excision epiglottis reconstruction in 14 cases, intraoperative as possible to retain most of the hyoid and sellar side of most of the laryngeal cartilage, resection of the tumor under direct vision, the suspicious edges can be frozen cut