Plummer J L, Zakaria A Z, Ilsley A H, Fronsko R R, Owen H
Department of Anaesthesia and Intensive Care, Flinders Medical Centre, Bedford Park, South Australia.
Anaesthesia. 1995 May;50(5):423-6. doi: 10.1111/j.1365-2044.1995.tb05998.x.
This study aimed to develop a protocol for assessing the influence of movement on oxyhaemoglobin saturation readings from pulse oximeters. Thirty-six volunteers took part in the study. In each volunteer, each hand was monitored by both a Nellcor N200 oximeter using a disposable probe and by a Datex Satlite DS103 oximeter using a clip-on finger probe. Volunteers made five standardised movements during which output was recorded from all four oximeters. All movements were associated with apparent decreases in oxyhaemoglobin saturation which were statistically significant for two movements with the Nellcor equipment and for four movements with the Datex equipment. Movement was associated with increases in the magnitude of pulse amplitude, but this was not quantitatively associated with magnitude of artefactual changes in saturation. Use of this standardised movement protocol allows quantification of movement artefact from pulse oximeters and should facilitate the development of equipment less affected by movement.
本研究旨在制定一项方案，以评估运动对脉搏血氧仪测得的氧合血红蛋白饱和度读数的影响。36名志愿者参与了该研究。对每名志愿者的每只手，分别使用一次性探头的Nellcor N200血氧仪和夹式手指探头的Datex Satlite DS103血氧仪进行监测。志愿者进行了五次标准化动作，在此期间记录了所有四台血氧仪的输出。所有动作均伴有氧合血红蛋白饱和度明显下降，其中两次动作使用Nellcor设备时具有统计学意义，四次动作使用Datex设备时具有统计学意义。运动与脉搏幅度大小增加有关，但这与饱和度伪像变化的大小没有定量关系。使用这种标准化运动方案可以对脉搏血氧仪的运动伪像进行量化，并应有助于开发受运动影响较小的设备。
