van Heurn L W, Theunissen P H, Ramsay G, Brink P R
Department of Surgery and Pathology, De Wever Hospital, Heerlen, the Netherlands.
Chest. 1996 Jun;109(6):1466-9. doi: 10.1378/chest.109.6.1466.
The tracheas of 12 patients who had undergone autopsies after percutaneous dilatational tracheotomy (PDT) were analyzed macroscopically and microscopically. The puncture site of the trachea varied from just below the cricoid cartilage (two patients) to below the third ring (three patients). A fracture of one or more tracheal rings was present in 11 patients, of whom 2 had a fractured cricoid. Destruction of one or more tracheal rings was present in all eight patients cannulated for more than 10 days and was related to duration of cannulation (p<0.005). Protrusion of the anterior wall into the tracheal lumen with tracheal stenosis was seen in two patients. Improvements to the PDT technique are discussed to avoid complications.
对12例经皮扩张气管切开术（PDT）后接受尸检的患者的气管进行了宏观和微观分析。气管穿刺部位从环状软骨下方（2例患者）到第三环下方（3例患者）不等。11例患者存在一个或多个气管环骨折，其中2例环状软骨骨折。在所有8例插管超过10天的患者中均存在一个或多个气管环破坏，且与插管持续时间有关（p<0.005）。2例患者可见前壁突入气管腔并伴有气管狭窄。讨论了对PDT技术的改进以避免并发症。
