由于伴有低氧血症、高碳酸血症和血液动力学不稳定,危重病患者的气管插管存在困难。并且因为不能完成插管可能加重低氧血症而导致死亡或加重病情。本文介绍了在这种情况下通过环甲膜穿刺经大口径血管扩张导管施行经皮—气管喷射通气(PTJV)的经验。 患者与方法 需要接受机械通气治疗的急性呼吸衰竭患者29例。气管插管术前术者对气管插管难度进行评估,患者吸入100％纯氧。常规气管插管失败后即进行PTJV。局部暴露环甲膜,用拇指和食指固定气管,血管扩张器穿刺针与盛有 Tracheal intubation is difficult in critically ill patients due to hypoxemia, hypercapnia and haemodynamic instability. And may die or aggravate the condition because cannibalization can worsen hypoxemia. This article describes the experience with percutaneous-tracheal jet ventilation (PTJV) through a large-caliber vascular dilatation catheter in this condition. Patients and Methods Need for mechanical ventilation in patients with acute respiratory failure in 29 cases. Tracheal intubation preoperative tracheal intubation difficulty assessment, the patient inhaled 100% pure oxygen. PTJV was performed after conventional tracheal intubation failed. Locally exposed ring membrane, with the thumb and index finger fixed trachea, vasodilator needle and Sheng