(HealthDay News) – Self-measured blood pressure (SMBP) monitoring lowers BP in the short-term, according to a review published in the Aug. 6 issue of the Annals of Internal Medicine.
Katrin Uhlig, MD, from Tufts Medical Center in Boston, and colleagues reviewed the literature to identify 52 prospective comparative studies of SMBP monitoring with or without additional support vs. usual care or an alternative SMBP monitoring intervention in persons with hypertension.
The researchers found that, for SMBP monitoring alone versus usual care (26 comparisons), moderate-strength evidence supported a lower BP at six months but not at 12 months. Compared to usual care, SMBP monitoring plus additional support (25 comparisons) showed high-strength evidence for a lower BP with use of SMBP monitoring, ranging from −3.4 to −8.9mmHg for systolic BP and from −1.9 to −4.4mmHg for diastolic BP at 12 months in good-quality studies. Low-strength evidence failed to demonstrate a difference between SMBP monitoring plus additional support vs. SMBP monitoring alone or with less intense additional support (13 comparisons). Evidence was insufficient to demonstrate clinical outcomes across all comparisons. Differences between surrogate or intermediate outcomes were not apparent based on low-strength evidence.
“Self-measured BP monitoring with or without additional support lowers BP compared with usual care, but the BP effect beyond 12 months and long-term benefits remain uncertain,” the authors write.