Goodwin James, Bilous Mary, Winship Susan, Finn Paul, Jones Stephen C
James Cook University Hospital, Teesside University, Middlesbrough, UK.
Blood Press Monit. 2007 Apr;12(2):113-7. doi: 10.1097/MBP.0b013e3280acab1b.
Accuracy of blood pressure measuring devices is of prime importance and should be validated before devices are used clinically. We carried out an independent evaluation of the Oscar 2 oscillometric ambulatory blood pressure monitor (SunTech Medical, Model 222) according to the British Hypertension Society (BHS) Protocol.
Validation of the Oscar 2 was carried out in accordance with Part 1 of the British Hypertension Society protocol. Having successfully completed the first three phases, in the static validation phase blood pressure measurements were made on 114 participants simultaneously by two observers blinded from each other's readings and those of the device, giving 255 data pairs for systolic and diastolic blood pressure. Readings were made using simultaneous same-arm measurement, each observer using a dual-head binaural stethoscope and a calibrated mercury sphygmomanometer. Data were recorded independently, to the nearest 2 mmHg and were checked by the supervisor who operated the device.
The device mean and observer means (and standard deviations) were exceptionally close across a high range of pressures, with a mean difference for the better observer of 0+/-7 mmHg and -1+/-6 mmHg for systolic and diastolic blood pressure, respectively. With 62% of all systolic blood pressure standard vs. device differences equal or less than 5 mmHg, and 70% of all similar differences for diastolic blood pressure equal to or less than 5 mmHg, the device was categorized as Grade A for systolic and diastolic blood pressure.
The Oscar 2 was graded A for both systolic and diastolic blood pressure by the British Hypertension Society protocol and can be recommended for clinical use in an adult population.
血压测量设备的准确性至关重要，在临床使用前应进行验证。我们根据英国高血压学会（BHS）协议对奥斯卡2型示波动态血压监测仪（SunTech Medical，型号222）进行了独立评估。
按照英国高血压学会协议的第1部分对奥斯卡2型进行验证。在成功完成前三个阶段后，在静态验证阶段，由两名彼此不知道对方读数和设备读数的观察者同时对114名参与者进行血压测量，得出255对收缩压和舒张压数据。使用同时测量同一手臂的方法进行读数，每位观察者使用双头双耳听诊器和校准的汞柱式血压计。数据独立记录，精确到最接近的2 mmHg，并由操作设备的主管进行检查。
在很宽的压力范围内，设备平均值与观察者平均值（及标准差）异常接近，较好观察者的收缩压和舒张压平均差值分别为0±7 mmHg和-1±6 mmHg。所有收缩压标准值与设备差值中62%等于或小于5 mmHg，舒张压所有类似差值中70%等于或小于5 mmHg，该设备在收缩压和舒张压方面被归类为A级。
根据英国高血压学会协议，奥斯卡2型在收缩压和舒张压方面均被评为A级，可推荐用于成年人群的临床使用。
