覆膜气管支架治疗气管狭窄伴气管瘘

目的将覆膜的直管型或分叉型气管支架应用于治疗恶性肿瘤造成的气管狭窄伴气管瘘，以维持呼吸通道和封闭瘘口。方法采用全部或部分覆盖硅橡胶薄膜的不锈钢丝“Z”型支架，使用带导引鞘的三套管支架输送器放置支架。结果9例气管支架均一次放置成功，6例食管内同时放置支架。术后呼吸困难的症状立即缓解，瘘口被封闭。随访观察4～12个月，无明显不良反应。结论采用覆膜直管型或分叉型支架治疗气管狭窄伴气管瘘是安全有效的方法。

The Treatment of TrachealStricture and Tracheal Fistula by Means of the Covered Tracheal Stent

Objective　The covered tracheal stent in shape of a straight tube or a fork-like tube was placed clinically to treat tracheal stricture and tracheal fistula caused by malignant tumour in order to maintain the normal function respiration and to keep the fistula closed.Methods　The stent was made of stainless steel in shape of "Z"covered with membrane partially or entirely.An instrument with tube in three sheathes was used to place the stent in position.Results　The tracheal stents were placed successfully in 9 cases at first time and the esophageal stents were placed for 6 cases among them in the meantime.Dyspnea of patiants was remarkably alleviated.The tracheal fistula of them was closed effectivelly.Follow-up for 4～12 monthes all cases demonstrated no adverse effects.Conclusion　The application of the covered stent is a safe effective method to treat the tracheal stricture and tracheal fistula.