Kadoi Yuji, Ohta Jo, Sasaki Yumeka, Saito Shigeru
Division of Operation Room, Gunma University Hospital, Maebashi, Japan.
Department of Anesthesiology, Gunma University School of Medicine, Maebashi, Japan.
Case Rep Anesthesiol. 2023 Nov 6;2023:7807693. doi: 10.1155/2023/7807693. eCollection 2023.
Some controversial reports have observed oxygen desaturation (defined as percutaneous oxygen saturation (SpO) < 90%) during electroconvulsive therapy (ECT). The purpose of this pilot study was to examine oxygenation states in eight patients during ECT. In addition to the usual hemodynamic monitors and pulse oximeter, the oxygen reserve index (ORi) was monitored using a pulse oximeter. Patients received either no preoxygenation or preoxygenation with 100% oxygen via a tight-fitting mask for 1 or 3 min before induction of anesthesia. ORi increased after preoxygenation. ORi differed significantly between 3 min of preoxygenation and the other two methods before restarting mask ventilation. SpO was significantly increased with all methods before stopping manual mask ventilation or before restarting manual mask ventilation compared with that before preoxygenation. No oxygen desaturation was observed at any time with any treatment methods. In nonobese patients, the adequate oxygenation state as shown by SpO and ORi was maintained during ECT even without preoxygenation.
一些有争议的报告观察到在电休克治疗（ECT）期间出现氧饱和度降低（定义为经皮氧饱和度（SpO）＜90%）。这项前瞻性研究的目的是检查8例患者在ECT期间的氧合状态。除了常规的血流动力学监测器和脉搏血氧仪外，还使用脉搏血氧仪监测氧储备指数（ORi）。患者在麻醉诱导前要么不进行预给氧，要么通过紧密贴合的面罩接受100%氧气预给氧1或3分钟。预给氧后ORi增加。在重新开始面罩通气前,预给氧3分钟与其他两种方法之间的ORi有显著差异。与预给氧前相比，在停止手动面罩通气前或重新开始手动面罩通气前，所有方法的SpO均显著升高。任何治疗方法在任何时候均未观察到氧饱和度降低。在非肥胖患者中，即使不进行预给氧，ECT期间SpO和ORi所显示的充分氧合状态也能得以维持。
