Rau B K, Harikrishnan K M, Krishna S
Department of Surgery and Endoscopy, Willingdon Hospital, India.
Ann Acad Med Singap. 1994 May;23(3):333-4.
Thirty-five cases of benign stenotic lesions involving the upper respiratory passages were managed by laser photocoagulation of the scar tissue. The stenosed segment was around the site of tracheostomy in 28 cases (80%), subglottic in five cases (14.3%), and as a result of congenital webs, at the level of the larynx in two cases (5.7%). Adequate lumen was achieved in 29 cases (83%). The procedure was unsuccessful in five patients (all with subglottic stenosis). One to 11 laser settings (mean 2.8) were required to achieve satisfactory lumen. Complications (three cases, 8.5%) included bleeding in two cases and cervical emphysema in one case. Patients have been followed-up for two to 34 months (mean 23 months). One patient (2.8%) had recurrent stricture formation for which recanalisation was done. There were no procedure-related deaths. Neodymium: Yttrium-Aluminium-Garnet (Nd: YAG) laser photocoagulation is effective in the management of tracheal stenosis due to benign lesions except when they are located in the subglottic region. It carries minimal morbidity and no mortality risks.
35例上呼吸道良性狭窄病变患者接受了瘢痕组织激光光凝治疗。28例（80%）狭窄段位于气管造口部位周围，5例（14.3%）位于声门下，2例（5.7%）因先天性蹼，位于喉部水平。29例（83%）实现了足够的管腔。5例患者治疗失败（均为声门下狭窄）。达到满意管腔需要1至11次激光设置（平均2.8次）。并发症3例（8.5%），包括2例出血和1例颈部气肿。患者随访2至34个月（平均23个月）。1例患者（2.8%）出现复发性狭窄，进行了再通治疗。无手术相关死亡。钕：钇铝石榴石（Nd:YAG）激光光凝治疗良性病变所致气管狭窄有效，但病变位于声门下区域时除外。其发病率极低，无死亡风险。
