Bierman M I, Stein K L, Snyder J V
Department of Anesthesiology/Critical Care Medicine, University of Pittsburgh Medical Center, Presbyterian University Hospital.
Chest. 1992 Nov;102(5):1367-70. doi: 10.1378/chest.102.5.1367.
To demonstrate the utility of pulse oximetry in detecting clinically unapparent episodes of arterial desaturation in postoperative cardiac surgical patients and to evaluate the effect of pulse oximetry on ordering arterial blood gas analyses.
Prospective, randomized, partially blinded comparison.
Cardiothoracic surgical intensive care unit.
35 patients following elective cardiac surgical procedures.
All patients were monitored continuously with pulse oximetry throughout their ICU course. In group 1 patients, the SpO2 data were available at the bedside. In group 2 patients, the SpO2 data were masked at the bedside and monitored at a remote location.
Utilization of pulse oximetry allowed a significant reduction in arterial blood gas utilization in group 1 (group 1: 12.4 +/- 7.5 blood gas analyses per ICU admission vs group 2: 23.1 +/- 8.8; p = 0.0007) without adverse events. Clinically unapparent desaturations were detected in 7 of 15 patients in group 2.
Pulse oximetry improves patient safety through the detection of clinically unapparent episodes of desaturation and can allow a reduction in the number of blood gas analyses utilized without adverse effects to the patient. This may allow a potential cost savings to the patient.
证明脉搏血氧饱和度测定法在检测心脏外科术后患者临床上不明显的动脉血氧饱和度下降发作中的作用，并评估脉搏血氧饱和度测定法对开具动脉血气分析医嘱的影响。
前瞻性、随机、部分盲法对照。
心胸外科重症监护病房。
35例择期心脏手术患者。
所有患者在重症监护病房期间均通过脉搏血氧饱和度测定法进行持续监测。第1组患者的血氧饱和度（SpO2）数据可在床边获取。第2组患者的SpO2数据在床边被遮盖，并在远程位置进行监测。
使用脉搏血氧饱和度测定法使第1组的动脉血气分析使用量显著减少（第1组：每次重症监护病房入院进行12.4±7.5次血气分析，第2组：23.1±8.8次；p = 0.0007），且无不良事件。第2组15例患者中有7例检测到临床上不明显的血氧饱和度下降。
脉搏血氧饱和度测定法通过检测临床上不明显的血氧饱和度下降发作提高了患者安全性，并且可以减少血气分析的使用次数，而对患者没有不良影响。这可能为患者节省潜在成本。
