Gillor A, Schickendantz S, Heiner K, Mennicken U
Kardiologische Abteilung der Universitäts-Kinderklinik Köln.
Monatsschr Kinderheilkd. 1988 Feb;136(2):71-5.
Pulse oximetry is a relatively new noninvasive method to measure arterial oxygen saturation (SO2). We evaluated the reliability of a pulse oximeter (N-100, Nellcor/Drger, Lübeck) in single and continuous measurements of SO2. During cardiac catheterisation we compared pulse oximeter (puls.SO2) measurements to those in simultaneously taken arterial samples (art.SO2), and obtained 203 pair measurements in 85 patients, mostly newborns and infants; in 20 of them before and during the breathing of oxygen through a mask. We also have 67 pair measurements of capillary blood samples (kap.SO2) and puls.SO2. Continuous measurements with the pulse oximeter were carried out in 17 patients for up to 116 h. Our main results are: 1. In the puls.SO2 range of 66% to 100% the measurements with the pulse oximeter were accurate (r = 0.97, Syx = 2.1). Below 66% the puls.SO2 values were on average much higher than the art.SO2 values, with an increased variance. Intraindividual oxygenation changes before and during the breathing of oxygen were accurately measured. 2. Pulse oximetry is much more informative than kap.SO2 measurements, because its information about the SO2 before blood sampling (= resting value) and following SO2 changes during the painful procedure (= stress values). 3. Continuous measurements with the pulse oximeter are very simple and very reliable and are not associated with skin injury. Because the pulse oximeters responses rapid to oxygenation changes and does not need calibration it is very valuable in the assessment of therapeutic procedures in patients with cyanotic heart disease. We conclude that the pulse oximeter is a very important new diagnostic tool in pediatric cardiology.
脉搏血氧饱和度测定法是一种相对较新的测量动脉血氧饱和度（SO2）的无创方法。我们评估了一种脉搏血氧仪（N - 100，Nellcor/Dräger，吕贝克）在单次和连续测量SO2时的可靠性。在心脏导管插入术期间，我们将脉搏血氧仪测量的SO2值（puls.SO2）与同时采集的动脉血样本测量值（art.SO2）进行比较，在85例患者（主要是新生儿和婴儿）中获得了203对测量值；其中20例在通过面罩吸氧前和吸氧过程中进行了测量。我们还对67对毛细血管血样本（kap.SO2）和puls.SO2进行了测量。对17例患者使用脉搏血氧仪进行了长达116小时的连续测量。我们的主要结果如下：1. 在puls.SO2范围为66%至100%时，脉搏血氧仪的测量结果准确（r = 0.97，Syx = 2.1）。低于66%时，puls.SO2值平均比art.SO2值高得多，且方差增大。吸氧前后个体内的氧合变化被准确测量。2. 脉搏血氧饱和度测定法比kap.SO2测量提供的信息多得多，因为它能提供采血前的SO2信息（=静息值）以及痛苦操作过程中SO2变化后的信息（=应激值）。3. 使用脉搏血氧仪进行连续测量非常简单且非常可靠，并且不会造成皮肤损伤。由于脉搏血氧仪对氧合变化反应迅速且无需校准，因此在评估患有青紫型心脏病患者的治疗过程中非常有价值。我们得出结论，脉搏血氧仪是儿科心脏病学中一种非常重要的新型诊断工具。
