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目的：探讨容许性高碳酸血症通气对性性呼吸衰竭的疗效。方法：观察30例慢性呼吸衰竭行气管插管辅助机械通气患者，为减度吸气末气道压力，减少肺损伤，应用较低潮气量（5～8ml／kg），允许一定限度的高碳酸血症。结果：27例存活，无一例出现气压伤。结论：慢性呼吸衰竭行机械通气治疗中，使用较小潮气量及容许性高碳酸血症通气，可以减少气压伤的发生，提高抢救成功率。
Objective: To investigate the effect of permissive hypercapnic ventilation on sexual respiratory failure. Methods: Thirty patients with chronic respiratory failure who underwent endotracheal intubation assisted mechanical ventilation were enrolled in this study. In order to reduce end-inspiratory airway pressure and reduce lung injury, a lower tidal volume (5-8ml / kg) Blood disorders. Results: Twenty-seven patients survived, and none of them had barotrauma. Conclusion: In the treatment of chronic respiratory failure, the use of smaller tidal volume and permissive hypercapnia ventilation can reduce the incidence of barotrauma and improve the success rate of rescue.