研究旨在评价喉气管分离术（laryngotrachealsePa－rationProcedure，LTS）在患儿中的应用效果。报告自1988～1992年施行LTS的患儿21例，年龄8～172个月，随访时间l～49个月，均系继发于先天、后天神经源性或中毒性损害导致发生不可逆的喉气管功能障碍者，其中72％的患儿曾做过 The purpose of the study was to evaluate the efficacy of laryngeal tracheal asparaginopathy (LTS) in children. Twenty-one of the 21 children reported to have performed LTS from 1988 to 1992, ranging in age from 8 to 172 months, were followed up for 1-49 months, all of whom were secondary to congenital or acquired neurotoxic or toxic injury resulting in irreversible laryngotracheal Impaired, of which 72% of children have done