Brinton TJ, Walls ED, Chio SS
Pulse Metric, Incorporated, San Diego, California, USA.
Blood Press Monit. 1998 Apr;3(2):121-124.
The accurate measurement of arterial blood pressure is essential for the diagnosis and treatment of hypertension. The development of new automated methods of measurement that provide reliable determinations of blood pressure should be valuable in the assessment of hypertension not only in the clinic or hospital but also, in the home for self-monitoring. DESIGN: We evaluated a noninvasive method for the measurement of systolic and diastolic blood pressures in 132 subjects. METHODS: Measurements obtained using the pulse dynamic method of blood pressure determination were validated with simultaneous manual measurements. Two qualified nurses used Korotkoff sounds to determine systolic (phase I) and diastolic (phase IV) blood pressures according to the Association for the Advancement of Medical Instrumentation 1987 guidelines. RESULTS: Inter-nurse variability was 2.7 +/- 4.1 mmHg (mean +/- SD) for systolic blood pressure and 4.0 +/- 3.7 mmHg for diastolic blood pressure and correlations were r = 0.98 and 0.94, respectively. We observed excellent agreement between auscultatory and pulse dynamic methods for systolic (127 +/- 21 versus 132 +/- 20 mmHg; r = 0.97) and diastolic (72 +/- 10 versus 71 +/- 10 mmHg; r = 0.89) blood pressures. Bland-Altman analysis demonstrated that there was a mean difference (reference-device) between the two methods of - mmHg (pulse dynamic value higher) and SD of 5 mmHg for systolic blood pressure and a mean difference of 1 mmHg (pulse dynamic value lower) and SD of 5 mmHg for diastolic blood pressure. CONCLUSION: The results of this study demonstrate that this noninvasive method of measurement of blood pressure is accurate and reliable and should therefore be appropriate for the evaluation of hypertension both in the home and in clinical settings.
准确测量动脉血压对于高血压的诊断和治疗至关重要。开发能够可靠测定血压的新型自动化测量方法不仅在诊所或医院评估高血压方面具有重要价值，而且在家庭自我监测中也很有意义。
我们评估了一种用于测量132名受试者收缩压和舒张压的非侵入性方法。
使用脉搏动态血压测定法获得的测量结果与同时进行的手动测量结果进行了验证。两名合格护士根据医学仪器促进协会1987年指南，利用柯氏音来确定收缩压（第一相）和舒张压（第四相）。
护士间收缩压的变异性为2.7±4.1 mmHg（平均值±标准差），舒张压为4.0±3.7 mmHg，相关性分别为r = 0.98和0.94。我们观察到听诊法和脉搏动态法在收缩压（127±21对132±20 mmHg；r = 0.97）和舒张压（72±10对71±10 mmHg；r = 0.89）测量上具有极好的一致性。布兰德-奥特曼分析表明，两种方法之间收缩压的平均差异（参考设备）为 - mmHg（脉搏动态值较高），标准差为5 mmHg，舒张压的平均差异为1 mmHg（脉搏动态值较低），标准差为5 mmHg。
本研究结果表明，这种非侵入性血压测量方法准确可靠，因此适用于家庭和临床环境中高血压的评估。
