Desebbe Olivier, Cannesson Maxime
Service d'Anesthésie Réanimation, Hôpital Cardiologique Louis Pradel, Bron, France.
Curr Opin Anaesthesiol. 2008 Dec;21(6):772-8. doi: 10.1097/ACO.0b013e32831504ca.
Hypovolemia is one of the most frequent causes of arterial hypotension in the operating room. Pulse oximeter plethysmographic waveform, obtained using a noninvasive and widely available device, has recently shown its potential interest in predicting fluid responsiveness in mechanically ventilated patients under mechanical ventilation. This review highlights new applications of this routine monitoring.
Respiratory variations in the plethysmographic waveform amplitude have been correlated with respiratory variations in arterial pulse pressure and can predict fluid responsiveness in mechanically ventilated patients under general anesthesia. Until recently, pulse oximeter plethysmographic waveform had to be recorded and analyzed off line using software algorithms. Bringing this new index into the clinical field would require devices allowing for automated and continuous real time calculation. Such devices will have potential to guide fluid optimization in the operating room.
Automatic detection of respiratory variations in pulse oximetry plethysmographic waveform amplitude can predict fluid responsiveness in the operating room in patients under mechanical ventilation and has potential for fluid optimization in this setting.
低血容量是手术室动脉低血压最常见的原因之一。脉搏血氧饱和度仪容积描记波形可通过一种无创且广泛使用的设备获得，最近已显示出其在预测机械通气患者液体反应性方面的潜在价值。本综述重点介绍了这种常规监测的新应用。
容积描记波形幅度的呼吸变化与动脉脉压的呼吸变化相关，并且可以预测全身麻醉下机械通气患者的液体反应性。直到最近，脉搏血氧饱和度仪容积描记波形还必须使用软件算法离线记录和分析。将这一新指标引入临床领域需要能够进行自动和连续实时计算的设备。此类设备将有潜力在手术室指导液体优化。
自动检测脉搏血氧饱和度仪容积描记波形幅度的呼吸变化可预测机械通气患者在手术室的液体反应性，并在此情况下有液体优化的潜力。
