Praveen C V, Martin A
Department of ENT, Princess Royal University Hospital, Farnborough, Kent, UK.
Ann R Coll Surg Engl. 2007 Nov;89(8):W6-8. doi: 10.1308/147870807X238258.
Tracheo-arterial fistula after tracheostomy causing massive haemorrhage is fortunately rare, but can be serious and often fatal. Brachiocephalic trunk is commonly at risk of erosion because of its close relation with the trachea. Factors responsible for fistula are pressure from tube rubbing on the trachea and adjacent vessel, infection, malignant neoplastic invasion of a vessel near the trachea and low tracheostomy. We present a rare case of massive arterial bleeding which happened on the second day and recurred on fifth day, because of slippage of the ligature from the thyroid artery, causing aspiration and death. A low tracheostomy below the third ring should be avoided. If there is bleeding, as a first-aid measure the cuff should be over inflated without removing the tracheostomy tube.
气管切开术后导致大出血的气管-动脉瘘幸好罕见,但可能很严重且往往致命。头臂干因其与气管关系密切,通常有被侵蚀的风险。导致瘘的因素包括气管导管摩擦气管及相邻血管产生的压力、感染、气管附近血管的恶性肿瘤侵犯以及低位气管切开术。我们报告一例罕见的大出血病例,出血发生在第二天,第五天复发,原因是结扎线从甲状腺动脉滑脱,导致误吸和死亡。应避免在第三环以下进行低位气管切开术。如果发生出血,作为急救措施,不应拔除气管切开导管,而应过度充气套囊。