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Am J Hypertens. 2007 Sep;20(9):942-8.

Mobile phone-based remote patient monitoring system for management of hypertension in diabetic patients.

Author information

  • 1Prosserman Centre for Health Research, Samuel Lunenfeld Research Institute, Mount Sinai Hospital, Toronto, Canada. logan@mshri.on.ca

Abstract

BACKGROUND:

Rising concern over the poor level of blood-pressure (BP) control among hypertensive patients has prompted searches for novel ways of managing hypertension. The objectives of this study were to develop and pilot-test a home BP tele-management system that actively engages patients in the process of care.

METHODS:

Phase 1 involved a series of focus-group meetings with patients and primary care providers to guide the system's development. In Phase 2, 33 diabetic patients with uncontrolled ambulatory hypertension were enrolled in a 4-month pilot study, using a before-and-after design to assess its effectiveness in lowering BP, its acceptability to users, and the reliability of home BP measurements.

RESULTS:

The system, developed using commodity hardware, comprised a Bluetooth-enabled home BP monitor, a mobile phone to receive and transmit data, a central server for data processing, a fax-back system to send physicians' reports, and a BP alerting system. In the pilot study, 24-h ambulatory BP fell by 11/5 (+/-13/7 SD) mm Hg (both P < .001), and BP control improved significantly. Substantially more home readings were received by the server than expected, based on the preset monitoring schedule. Of 42 BP alerts sent to patients, almost half (n = 20) were due to low BP. Physicians received no critical BP alerts. Patients perceived the system as acceptable and effective.

CONCLUSIONS:

The encouraging results of this study provide a strong rationale for a long-term, randomized, clinical trial to determine whether this home BP tele-management system improves BP control in the community among patients with uncontrolled hypertension.

Comment in

PMID:
17765133
[PubMed - indexed for MEDLINE]
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