Key result
QardioArm app meets ESH-IP2 validation criteria for SBP, DBP, and HR in obese patients.
Why the study?
Does the QardioArm device accurately measure blood pressure and heart rate compared to a standard device in obese subjects?
Cross-Sectional (n=33)
Does the QardioArm device accurately measure blood pressure and heart rate compared to a standard device in obese subjects?
The QardioArm app meets the ESH-IP2 validation requirements for measuring blood pressure and heart rate in an obese population.
Answers are grounded in this paper and cite their sources.
May support app-based BP monitoring in obese adults; hypothesis-generating and requires larger outcome trials before practice change.
BACKGROUND: Obesity and high blood pressure (HBP) pose high cardiovascular risks, and they are frequent causes of cardiovascular disease. OBJECTIVE: ) according to guidelines in the European Society of Hypertension-International Protocol 2 (ESH-IP2). METHODS: We recruited 33 obese subjects and measured their blood pressure using QardioArm (test device) and Omron M3 Intellisense (Omron Healthcare, Kyoto, Japan; standard device). We compared systolic blood pressure (SBP), diastolic blood pressure (DBP), and heart rate (HR) according to the ESH-IP2. RESULTS: A total of 95 of 99 differences for SBP and 91 of 99 for DBP displayed absolute differences within 10 mm Hg. A total of 98 of 99 differences for SBP and 98 of 99 for DBP exhibited absolute differences within 15 mm Hg. This result satisfied requirements for part 1 of the ESH-IP2. A total of 27 out of 33 individuals for SBP and 30 out of 33 individuals for DBP had a minimum of 2 of 3 comparisons within 5 mm Hg difference. None of the subjects had 3 differences outside 5 mm Hg for SBP and DBP, satisfying part 2 of the ESH-IP2. For HR measurements, a total of 90 of 99 differences had absolute differences within 3 beats per minute (bpm), and a total of 94 or 99 differences had absolute differences within 5 bpm. A total of 98 of 99 differences had absolute differences within 8 bpm. Therefore, the test device satisfied part 1 of ESH-IP2 criteria for HR. For part 2 of ESH-IP2, 31 of 33 individuals had a minimum of 2 of 3 comparisons within 3 bpm difference for HR. Only 1 of 33 subjects had 3 differences outside 3 bpm. CONCLUSIONS: To the best of our knowledge, this was the first study to show that an app that measures blood pressure and HR meets the requirements of the ESH-IP2 in an obese population. We believe the ESH-IP2 should publish explicit criteria for validation of blood pressure devices in specific populations.
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Mazoteras‐Pardo et al. (2018) conducted a cross-sectional in Obesity (n=33). QardioArm Blood Pressure App vs. Omron M3 Intellisense was evaluated on Validation of systolic blood pressure, diastolic blood pressure, and heart rate according to ESH-IP2 criteria. The QardioArm blood pressure app successfully met the ESH-IP2 validation criteria for measuring systolic blood pressure, diastolic blood pressure, and heart rate in an obese population.
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