Discussion on the influence of different parameters adjustment and alarm setting of ventilator on cardiopulmonary resuscitation effect
呼吸机不同参数调节与报警设置对心肺复苏效果影响探讨

摘要

目的 探讨呼吸机不同参数调节与报警设置对心肺复苏效果的影响。方法 选取我院2023年1月-2025年8月收治的30例呼吸心搏骤停行心肺复苏、给予气管插管使用呼吸机进行机械通气患者作为研究对象，观察组（n=15）将呼吸机潮气量设置为6~7m/kg，高压报警值为60cmH2O；对照组（n=15）呼吸机潮气量为8~12mL/kg，高压报警值为50cmH2O，对比两组心肺复苏效果。结果 两组患者复苏期间气道峰压值对比，观察组吸气峰压水平低于对照组（P<0.05），差异具有统计学意义。两组患者复苏后自主循环恢复（ROSC）率对比，观察组自主循环恢复（ROSC）率高于对照组（P＜0.05），差异具有统计学意义。结论 为保障心肺复苏期间有效通气，设置呼吸机小潮气量6-7ml/kg、适当提高呼吸机分钟通气量，同步上调气道高压报警阈值，可有效减少因按压相关压力升高所致非必要报警，提高患者自主循环恢复（ROSC）率。

Abstract

Objective To investigate the impact of different ventilator parameter adjustments and alarm settings on the effectiveness of cardiopulmonary resuscitation (CPR).
Methods A total of 30 patients with cardiopulmonary arrest who underwent CPR and received mechanical ventilation via endotracheal intubation in our hospital from January 2023 to August 2025 were selected as study subjects. The observation group (n=15) had ventilator tidal volume set at 6-7 mL/kg with a high-pressure alarm limit of 60 cmH₂O, while the control group (n=15) received tidal volume of 8-12 mL/kg with a high-pressure alarm limit of 50 cmH₂O. The CPR outcomes were compared between the two groups.
Results During CPR, the observation group showed significantly lower peak inspiratory pressure (PIP) compared to the control group (P<0.05). The return of spontaneous circulation (ROSC) rate was significantly higher in the observation group than in the control group (P<0.05).
Conclusion   During CPR, using low tidal volume (6-7 mL/kg) with appropriate adjustment of minute ventilation and synchronously increasing the high-pressure alarm threshold can effectively reduce unnecessary alarms caused by compression-related pressure increases. This approach improves ROSC rates during CPR.