Walton H G, Duvall T B, Van den Hout J, Boucher D M
Memorial Medical Center, Modesto, California.
J Extra Corpor Technol. 1993;25(2):53-7.
Continuous blood gas monitoring devices have been an aid to the perfusionist since the introduction of the oxygen saturation meters of the early 1980s. Since that time, the perfusionist has had to decide between continuous versus intermittent sampling, and on-line (an analyzer that can automatically sample either at prescribed intervals and/or on demand) versus in-line devices (monitors that continuously sample and display results). This report compares the continuous, in-line CDI-300 blood gas monitor and the Mallinckrodt Gem-Stat blood gas analyzer using intermittent sampling with the Corning 278 blood gas analyzer and 2500 Co-Oximeter. Thirty samples were taken, one per 30 patients, for comparison. Five samples were disqualified from the study. When comparing the remaining 25, the Gem-Stat results to the Corning 278 blood gas analyzer results, all measured values (arterial pH, pCO 2, pO 2, venous pO 2, Na, K and Hct) correlated greater than 0.5000 with a p value of less than 0.001. The exception was the ionized calcium value which had a correlation of 0.2473 with a p value of less than 0.232. When comparing the CDI-300 results to the Corning 278 blood gas machine results, all measured values (pH, pO 2, pCO 2, and venous pO 2) correlated greater than 0.5000 with a p value of less than 0.003 or better. When comparing the Gem-Stat results to the CDI results, all measured values (pH, pCO 2, pO 2 and venous pO 2) correlated greater than 0.5000 with a p value of less than 0.002 or better.
自20世纪80年代初血氧饱和度仪问世以来，连续血气监测设备一直对灌注师有所帮助。从那时起，灌注师就必须在连续采样与间歇采样之间做出选择，以及在线设备（一种可以按规定间隔和/或根据需要自动采样的分析仪）与在线设备（连续采样并显示结果的监测仪）之间做出选择。本报告比较了连续在线的CDI - 300血气监测仪和使用间歇采样的马利克罗斯特Gem - Stat血气分析仪，与康宁278血气分析仪和2500型共血氧计。共采集了30个样本，每30名患者采集一个样本用于比较。有5个样本被排除在研究之外。在比较其余25个样本时，Gem - Stat的结果与康宁278血气分析仪的结果相比，所有测量值（动脉血pH值、pCO₂、pO₂、静脉血pO₂、Na、K和Hct）的相关性大于0.5000，p值小于0.001。例外的是离子钙值，其相关性为0.2473，p值小于0.232。当将CDI - 300的结果与康宁278血气分析仪的结果进行比较时，所有测量值（pH值、pO₂、pCO₂和静脉血pO₂）的相关性大于0.5000，p值小于0.003或更佳。当将Gem - Stat的结果与CDI的结果进行比较时，所有测量值（pH值、pCO₂、pO₂和静脉血pO₂）的相关性大于0.5000，p值小于0.002或更佳。
