Schwartz W J, Rayburn W F, Turnbull G L, Christensen H D
Department of Obstetrics and Gynecology, University of Oklahoma, College of Medicine, Oklahoma City, USA.
J Reprod Med. 1996 Aug;41(8):581-5.
To compare the accuracy of three commercially available blood pressure monitoring devices having cuffs placed at different anatomic sites on obese pregnant women with large arms.
Fifty-five obese pregnant women (body mass index > 27.3) were eligible for participation; each had an upper arm circumferences > 35 cm. The three different portable devices compared had cuffs that fit easily around either the index finger, wrist or large arm. Two recordings using each device were compared with those obtained simultaneously using a well calibrated monitor.
Systolic, diastolic and mean arterial pressure recordings did not correlate between the monitor and devices with the cuff around the finger (r2 = .17, .17, .22), wrist (.30, .24, .33) or large arm (.44, .26, .40). The percentages of measurement differences within 5 mm Hg for the systolic, diastolic and mean arterial pressure were low for the device with the cuff around the finger (11.0%, 25.5%, 23.6%), wrist (33.0%, 46.4%, 35.5%) or large arm (38.5%, 29.4%, 46.7%).
Despite their commercial appeal, none of these portable blood pressure monitoring devices was accurate for use by obese pregnant patients with large arms.
比较三种市售血压监测设备在大臂肥胖孕妇不同解剖部位使用袖带时的准确性。
55名肥胖孕妇(体重指数>27.3)符合参与条件;她们每个人的上臂周长>35厘米。所比较的三种不同便携式设备的袖带可轻松适配食指、手腕或大臂。将每种设备的两次记录与使用校准良好的监测仪同时获得的记录进行比较。
对于袖带环绕手指的设备,收缩压、舒张压和平均动脉压记录与监测仪之间无相关性(r2 = 0.17、0.17、0.22),袖带环绕手腕的设备(r2 = 0.30、0.24、0.33),袖带环绕大臂的设备(r2 = 0.44、0.26、0.40)。对于袖带环绕手指的设备,收缩压、舒张压和平均动脉压在5毫米汞柱内测量差异的百分比很低(11.0%、25.5%、23.6%),袖带环绕手腕的设备(33.0%、46.4%、35.5%),袖带环绕大臂的设备(38.5%、29.4%、46.7%)。
尽管这些便携式血压监测设备具有商业吸引力,但对于大臂肥胖孕妇患者而言,这些设备均不准确。