自1965年McD0nald和Stocks提倡采用长期插管处理气道以来，喉气管狭窄（LTS）发生率增高，成为需手术处理的气道阻塞最常见原因。多年来处理声门下狭窄的原则为：轻度者密切观察，中度采用内窥镜手术，重度需外科手术切开。1974年后软骨移植成为I，TR最常用方法之一。过去IO年 Since the introduction of long-term intubation to the airways by McDonald and Stocks in 1965, the increased incidence of laryngotracheal stenosis (LTS) has been the most common cause of airway obstruction requiring surgery. Over the years to deal with the principles of subglottic stenosis are: mild were close observation, moderate endoscopic surgery, severe surgery required surgical incision. After 1974 cartilage transplantation as I, TR one of the most commonly used method. Past IO years