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在双侧声带固定或麻痹的患者中，如何扩大声门气道，改善通气而不损坏音质或引起误吸。其手术方法已经长期探索。采用内窥镜下激光内侧构状软骨切除术（ELMA）给8例患者进行了治疗，术前2人有喘鸣及不同程度的气道阻塞，未做气管切开术，其余6人已行气管切开术。已作气管切开术
In patients with bilateral vocal cord fixation or paralysis, how to expand the glottis airway to improve ventilation without damaging the sound quality or causing aspiration. The surgical methods have long been explored. Eight patients underwent endoscopic laser medial cartilage debridement (ELMA) were treated. Two patients had wheezing and varying degrees of airway obstruction before surgery and no tracheotomy was performed. The remaining six patients had been treated Tracheotomy. Tracheotomy has been done