Derrick J L, Bassin D J
Prince of Wales Hospital and The Chinese University of Hong Kong, Department of Anaesthesia and Intensive Care, Shatin.
J Clin Monit Comput. 1998 Jul;14(5):347-51. doi: 10.1023/a:1009978414365.
To define the longest sampling interval which will faithfully record the time course of episodes of severe hypotension and hypoxia in anesthetised patients.
Electronic anesthetic records of 1501 patients were analyzed retrospectively for hypotension where measured systolic blood pressure fell to 60 mmHg or less, and for hypoxia where SpO2 fell to 80% or less. The onset and offset times, maximum rate of change and spectral content were calculated for each episode.
These episodes commonly were rapid in onset and offset. The longest sampling interval to accurately represent these data was calculated to be 36 s for invasive blood pressure and 13 s for pulse oximetry.
Our current anesthetic record is inadequate to record many of the severe changes that we observed. One minute recording intervals, such as used in many electronic record keeping systems, are too slow to capture the rapid rates of change seen, and may lead to the assumption that an episode was not recognized promptly or that treatment was not administered in a timely manner.
确定能准确记录麻醉患者严重低血压和低氧血症发作时间过程的最长采样间隔。
回顾性分析1501例患者的电子麻醉记录，记录收缩压降至60mmHg及以下时的低血压情况，以及血氧饱和度（SpO2）降至80%及以下时的低氧情况。计算每次发作的起始和结束时间、最大变化率和频谱内容。
这些发作通常起始和结束都很快。经计算，准确呈现这些数据的最长采样间隔，有创血压为36秒，脉搏血氧饱和度测定为13秒。
我们目前的麻醉记录不足以记录我们观察到的许多严重变化。许多电子记录保存系统采用的1分钟记录间隔太慢，无法捕捉到快速的变化率，可能会导致认为未及时识别发作或未及时进行治疗的假设。
