Title

Comparison of the Microlife Blood Pressure Monitor With the Omron Blood Pressure Monitor for Detecting Atrial Fibrillation

Publication Date

2014

Journal Title

Am J Cardiol

Abstract

Screening for atrial fibrillation (AF) by assessing the pulse is recommended in high-risk patients. Some clinical trials demonstrated that the Micro life blood pressure monitor (BPM) with AF detection is more accurate than pulse palpation. This led to a change in practice guidelines in the United Kingdom where AF screening with the Micro life device is recommended instead of pulse palpation. Many BPMs have irregular heart beat detection, but they have not been shown to detect AF reliably. Recently, one study, in a highly select population, suggested that the Omron BPM with irregular heart beat detection has a higher sensitivity for AF than the Micro life BPM. We compared the Micro life and Omron BPMs to electrocardiographic readings for AF detection in general cardiology patients. Inclusion criteria were age >= 50 years without a pacemaker or defibrillator. A total of 199 subjects were enrolled, 30 with AF. Each subject had a 12-lead electrocardiography, 1 Omron BPM reading, and 3 Micro life BPM readings as per device instructions. The Omron device had a sensitivity of 30% (95% confidence interval [CI] 15.4% to 49.1%) with the sensitivity for the first Micro life reading of 97% (95% CI 81.4% to 100%) and the Micro life readings using the majority rule (AF positive if at least 2 of 3 individual readings were positive for AF) of 100% (95% CI 85.9% to 100%). Specificity for the Omron device was 97% (95% CI 92.5% to 99.2%) and for the first Micro life reading of 90% (95% CI 83.8% to 94.2%) and for the majority rule Micro life device of 92% (95% CI 86.2% to 95.7%; p

Volume Number

114

Issue Number

7

Pages

1046-1048

Document Type

Article

EPub Date

2014/09/13

Status

Northwell Researcher

Facility

Northwell Health

Primary Department

Cardiology

Additional Departments

Medicine

PMID

25212546

DOI

10.1016/j.amjcard.2014.07.016