两种来自不同制造商的同氧计之间的动脉氧和度测量的差异
Tyler J Law1,2,3, Gregory Leeb1,2,3, Xander M R van Wijk4
1Drs. Law, Leeb, Bickler, Feiner, Lipnick, and Mr. Vargas Zamora are affiliated with Department of Anesthesia & Perioperative Care, University of California, San Francisco, California, USA.
Respiratory care
|September 16, 2025
概括
在GEM和ABL联合氧计之间存在功能性动脉氧和度 (sO2) 测量的系统差异. 这些变化影响脉冲氧计验证和患者护理,需要在临床试验中仔细考虑.
科学领域:
- 临床化学 临床化学
- 医疗器械 医疗器械 医疗器械
- 呼吸系统生理学 呼吸系统生理学
背景情况:
- 功能性动脉血红蛋白氧和 (sO2) 对于脉冲氧计准确性验证至关重要.
- 同氧计性能的变化使研究和监管解释变得复杂.
- 本研究探讨了广泛使用的同氧计品牌之间的系统差异.
研究的目的:
- 量化来自两个主要品牌 (GEM和Radiometer ABL) 的同型号同氧计之间的系统测量差异.
- 评估这些差异对功能性动脉氧和度 (sO2) 测量的影响.
- 为脉冲氧计验证研究的准确性标准提供信息.
主要方法:
- 在健康志愿者中进行的低氧化控制实验测量了sO2和S মনোpO2.
- 在多台GEM Premier 5000和Radiometer ABL90 Flex分析仪上分析了31个动脉血液样本.
- 统计分析包括对差异,混合效应建模和差异分析.
主要成果:
- 平均而言,GEM分析仪的测量 sO2 比ABL分析仪高出2.3% (P < .001).
- 在较低和 (3.2%对1.4%) 时,差异更为明显.
- 尽管相关性很高 (r=0.999),但96.8%的样本差异>1%,61.3%的样本差异>2%.
结论:
- 在GEM和ABL共氧计之间存在临床上显著的系统的sO2测量差异.
- 这些差异对患者护理和脉冲氧计验证有影响.
- 建议对更多品牌和血压计进行进一步的研究;当前的标准应该指定同氧计制造商.
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