van Helmond Noud, Freeman Cecilia G, Hahnen Christina, Haldar Nilanjan, Hamati Jacquelyn N, Bard Dylan M, Murali Vignesh, Merli Geno J, Joseph Jeffrey I
Department of Anesthesiology, Sidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, PA, USA.
Department of Anesthesiology, Cooper Medical School of Rowan University, Cooper University Hospital, Camden, NJ, USA.
Hosp Pract (1995). 2019 Oct;47(4):211-215. doi: 10.1080/21548331.2019.1656991. Epub 2019 Aug 26.
: Handheld medical devices and smartwatches that measure BP without a cuff have recently become available. Since these measurements are relatively more user-friendly than conventional cuff-based measurements they may aid in more frequent BP monitoring. We investigated the accuracy and precision of two popular cuff-less devices: the Everlast smartwatch and the BodiMetrics Performance Monitor.: We enrolled 127 patients from the Thomas Jefferson University Hospital Preadmission Testing Center. Research staff were trained to measure BP according to manufacturer guidelines for the investigational devices. The Everlast smartwatch provides measurements of systolic (SBP) and diastolic (DBP) BP, whereas the Bodimetrics only provides SBP. Reference BP measurements were obtained using a hospital-grade automated sphygmomanometer. After 5 minutes of quiet sitting, four standard and three investigational BP measurements were taken with sixty seconds in between each measurement. The reference BP value was calculated by determining the average of the 2 standard BP measurements that bounded the investigational measurements. We thus determined 3 comparison pairs for each investigational device in each subject. We calculated the mean (SD) of the absolute difference between the respective investigational devices and the reference for SBP and DBP.: Data from 42 individuals was excluded because of variation in standard BP measurements per prespecified rules. Of 85 participants used for analysis, 36 (42%) were women, the mean (SD) age was 53 (21) years, 32 (38%) self-reported hypertension, and 97% of these (n = 31) reported taking antihypertensive medications. The average differences between the Everlast watch and reference were 16.9 (13.5) mm Hg for SBP and 8.3 (6.1) mm Hg for DBP. The average difference between the Bodimetrics performance monitor and the reference was 5.3 (4.7) mm Hg for SBP.: The Everlast smartwatch and the BodiMetrics Performance Monitor we tested are not accurate enough to be used as BP measurement devices.
无需袖带即可测量血压的手持式医疗设备和智能手表最近已上市。由于这些测量方法比传统的基于袖带的测量方法相对更便于用户使用，它们可能有助于更频繁地监测血压。我们研究了两种流行的无袖带设备的准确性和精密度：Everlast智能手表和BodiMetrics性能监测仪。
我们从托马斯·杰斐逊大学医院入院前检测中心招募了127名患者。研究人员接受培训，按照研究设备的制造商指南测量血压。Everlast智能手表可测量收缩压（SBP）和舒张压（DBP），而Bodimetrics仅提供SBP。使用医院级自动血压计获得参考血压测量值。安静坐5分钟后，进行4次标准血压测量和3次研究性血压测量，每次测量间隔60秒。通过确定界定研究测量值的2次标准血压测量值的平均值来计算参考血压值。因此，我们为每个受试者的每个研究设备确定了3对比较值。我们计算了各个研究设备与SBP和DBP参考值之间绝对差值的平均值（标准差）。
根据预先指定的规则，由于标准血压测量值存在差异，则排除了42个人的数据。在用于分析的85名参与者中，36名（42%）为女性，平均（标准差）年龄为53（21）岁，32名（38%）自我报告患有高血压，其中97%（n =
31）报告正在服用抗高血压药物。Everlast手表与参考值之间的平均差异为SBP 16.9（13.5）mmHg，DBP 8.3（6.1）mmHg。Bodimetrics性能监测仪与参考值之间的平均差异为SBP 5.3（4.7）mmHg。
我们测试的Everlast智能手表和BodiMetrics性能监测仪的准确性不足以用作血压测量设备。
