Kametas N A, McAuliffe F, Krampl E, Nicolaides K H, Shennan A H
Harris Birthright Research Centre for Fetal Medicine, King's College Hospital, Denmark Hill, London, UK.
J Hum Hypertens. 2006 Jul;20(7):517-22. doi: 10.1038/sj.jhh.1001998. Epub 2006 Apr 13.
Mercury-independent devices are increasingly being used in clinical practice as mercury will soon be removed from clinical use as a result of environmental, health and safety concerns. The aim of this study was to evaluate the accuracy of a portable aneroid device in an adult population at high altitude by following the part of the protocol of the British Hypertension Society regarding comparison between device and observer. We examined 10 subjects in Cerro de Pasco, Peru, which is situated 4370 m above sea level. The aneroid device was initially calibrated at both high altitude and at sea level to ensure optimal function. Validation of the device was undertaken at high altitude by connecting it in parallel to two mercury sphygmomanometers. Eleven sequential same-arm measurements were taken from each subject by two trained observers, alternating between mercury sphygmomanometry and the aneroid device. Simultaneous mercury readings were also recorded for additional analysis. During calibration, all 60 comparisons between the aneroid and mercury sphygmomanometers were within 3 mm Hg both at sea level and at high altitude. At validation, the device achieved an A grade for both systolic and diastolic pressures and also fulfilled the requirements of the Association for the Advancement of Medical Instrumentation. The mean and standard deviation for systolic and diastolic pressures, respectively, were -1.32 (4.3) mm Hg and 3.7 (4.7) mm Hg in sequential analysis and -0.7 (2.6) mm Hg and -3.3 (2.7) mm Hg in simultaneous analysis. We conclude that the Riester-Exacta portable aneroid device can be recommended for use in an adult population at high altitude.
由于环境、健康和安全方面的考虑，汞即将从临床应用中淘汰，因此无汞设备在临床实践中的使用越来越广泛。本研究的目的是通过遵循英国高血压学会关于设备与观察者比较的部分协议，评估一种便携式无液设备在高海拔成年人群中的准确性。我们在秘鲁海拔4370米的塞罗德帕斯科对10名受试者进行了检查。该无液设备最初在高海拔和海平面均进行了校准，以确保最佳功能。通过将其与两台汞柱式血压计并联，在高海拔地区对该设备进行了验证。两名经过培训的观察者对每位受试者的同一手臂进行了11次连续测量，在汞柱式血压测量和无液设备测量之间交替进行。同时还记录了汞柱式血压计的读数用于进一步分析。在校准过程中，无液设备与汞柱式血压计之间的所有60次比较在海平面和高海拔时均在3毫米汞柱以内。在验证过程中，该设备的收缩压和舒张压均达到A级，并且也符合医疗仪器促进协会的要求。在连续分析中，收缩压和舒张压的平均值及标准差分别为-1.32（4.3）毫米汞柱和3.7（4.7）毫米汞柱，在同步分析中分别为-0.7（2.6）毫米汞柱和-3.3（2.7）毫米汞柱。我们得出结论，Riester-Exacta便携式无液设备可推荐用于高海拔成年人群。
