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Assessment of blood pressure in patients with Type 2 diabetes: comparison between home blood pressure monitoring, clinic blood pressure measurement and 24‐h ambulatory blood pressure monitoring

2001; Wiley; Volume: 18; Issue: 6 Linguagem: Inglês

10.1046/j.1464-5491.2001.00513.x

1464-5491

Mike Masding, J. R. Jones, Erin Bartley, D. D. Sandeman,

Cardiovascular Health and Disease Prevention

Abstract Aims To compare a home blood pressure (BP) monitoring device and clinic BP measurement with 24‐h ambulatory BP monitoring in patients with Type 2 diabetes mellitus (DM). Methods Fifty‐five patients with type 2 DM had BP measured at three consecutive visits to the DM clinic by nurses using a stethoscope and mercury sphygmomanometer (CBP). Twenty‐four‐hour ambulatory BP was measured using a Spacelabs 90207 automatic cuff‐oscillometric device (ABPM). Subjects were then instructed in how to use a Boots HEM 732B semiautomatic cuff‐oscillometric home BP monitoring device and measured BP at home on three specified occasions on each of 4 consecutive days at varying times (HBPM). Results Correlations between HBPM and ABPM were r = 0.88, P < 0.001 for systolic BP and r = 0.76, P < 0.001 for diastolic BP, with correlations between CBP and ABPM being systolic r = 0.59, P < 0.001, diastolic r = 0.47, P < 0.001. HBPM agreed with ABPM more closely compared with CBP (CBP +10.9/+3.8 (95% confidence intervals (CI) 6.9, 14.8/1.6, 6.1) vs. HBPM +8.2/+3.7 (95% CI 6.0, 10.3/2.0, 5.4)). The sensitivity, specificity and positive predictive value of HBPM in detecting hypertension were 100%, 79% and 90%, respectively, compared with CBP (85%, 46% and 58%, respectively). Conclusions In patients with Type 2 DM, home BP monitoring is superior to clinic BP measurement, when compared with 24‐h ambulatory BP, and allows better detection of hypertension. It would be a rational addition to the annual review process. Diabet. Med. 18, 431–437 (2001)