Schmitt E A, Brantigan C O
J Clin Monit. 1986 Jan;2(1):44-52. doi: 10.1007/BF01619176.
Bedside measurement of pulmonary artery pressure and pulmonary artery wedge pressure has an important role in the management of critically ill patients. Unfortunately, waveform abnormalities and artifacts commonly distort numeric values and lead to incorrect therapeutic decisions. The clinical impact of these artifacts is magnified by the digital pressure displays used in most intensive care units. We present here an atlas and an analysis of the artifacts that commonly occur. Use of analog rather than digital pulmonary artery wedge pressure data, when combined with an understanding of the physiological characteristics of patients, can prevent critical errors in patient management.
肺动脉压和肺动脉楔压的床旁测量在危重症患者的管理中起着重要作用。不幸的是，波形异常和伪差常常会扭曲数值并导致错误的治疗决策。大多数重症监护病房使用的数字压力显示器放大了这些伪差对临床的影响。我们在此展示一份常见伪差的图谱及分析。使用模拟而非数字的肺动脉楔压数据，并结合对患者生理特征的了解，可避免患者管理中的严重错误。
