Reshetnik Alexander, Gohlisch Christopher, Zidek Walter, Tölle Markus, van der Giet Markus
Department of Nephrology, Medical Department IV, Charité University, Campus Benjamin Franklin, Berlin, Germany.
Blood Press Monit. 2016 Oct;21(5):307-9. doi: 10.1097/MBP.0000000000000195.
Hypertension is a major cardiovascular risk factor. Therefore, the accuracy of blood pressure (BP) measurement with self-measuring devices is of fundamental importance. Consequently, emerging BP devices should be evaluated against the gold standard according to an established and proven protocol.
Tel-O-GRAPH, a new oscillometric self-measuring device of brachial BP, was evaluated against auscultatory sphygmomanometry according to the BHS protocol. Bland-Altman plots were completed for systolic (SBP) and diastolic blood pressures (DBP), and the mean differences and SDs between the test device and the reference device were computed for all BP values.
A total of 85 individuals (mean age 48.11±18.0 years; 61% men) were included after they provided informed consent. Overall, 510 measurements were performed. The mean device-observer difference was -0.2±6.6 for SBP and 0.2±6.6 for DBP. The device achieved grade A for SBP and DBP for both observers. Examination of the different BP ranges indicated grade B for SBP more than 160 mmHg and grade A for all BP ranges.
Tel-O-GRAPH fulfilled the accuracy requirements of the BHS with the highest accuracy level (A) and can thus be used reliably in the oscillometric measurement of the brachial BP.
高血压是主要的心血管危险因素。因此，使用自测设备测量血压（BP）的准确性至关重要。所以，新型血压设备应根据既定且经过验证的方案与金标准进行对比评估。
根据英国高血压学会（BHS）方案，将一种新型的肱动脉血压示波自测设备Tel-O-GRAPH与听诊式血压计进行对比评估。完成了收缩压（SBP）和舒张压（DBP）的布兰德-奥特曼图，并计算了测试设备与参考设备之间所有血压值的平均差异和标准差。
85名个体（平均年龄48.11±18.0岁；61%为男性）在提供知情同意后被纳入研究。总共进行了510次测量。SBP的设备与观察者平均差异为-0.2±6.6，DBP为0.2±6.6。该设备在两位观察者的SBP和DBP测量中均达到A级。对不同血压范围的检查表明，SBP大于160 mmHg时为B级，所有血压范围总体为A级。
Tel-O-GRAPH达到了BHS的最高准确性水平（A）的准确性要求，因此可可靠地用于肱动脉血压的示波测量。
