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Accuracy of Quantifying Hypotension During Surgery Using Physiological Sensor Data
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DOI：10.1109/jtehm.2026.3698197.png)
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目的：手术中常测量动脉血压，一个重要原因是监测低血压（血压过低），已知低血压有害。由于术后并发症与低血压相关，通常计算低血压事件的数量、累积时长或阈值下的累积面积。为使数据收集过程可管理，参数数据常每15秒存储一次，并用于推导低血压程度。方法和程序：本研究计算了基于不同降采样程度对419例开腹手术患者低血压量化引入的误差，并测试了误差缓解实验。结果与使用连续血压波形数据进行了比较。结果：对于每15秒降采样一次，低血压事件数量的相对偏差为27.0%，累积低血压时长的相对偏差为30.0%，阈值下累积面积的相对偏差为10.8%。误差缓解方法通常未能改善误差。结论：这些结果强调了使用高频数据的必要性，并指出在解释基于降采样数据量化低血压的旧研究时需注意误差。
Keyword:
Arterial blood pressure
downsampling
hypotension
mean arterial blood pressure
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论文数:
574
被引数:
1.7K
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引用论文
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