iPhone App compared with standard blood pressure measurement -The iPARR trial.

Background: The possibility to use built-in smartphone-cameras for photoplethysmographic (PPG) recording of pulse waves lead to the release of numerous health apps, claiming to measure blood pressure (BP) based on PPG signals. Even though these apps are highly popular, not a single one is clinically validated. Aim of the current study was to test systolic BP (sBP) estimation by a promising new algorithm in a large clinical setting.

Impact of Single-Occasion American vs. Canadian Office Blood Pressure Measurement Recommendations on Blood Pressure Classification.

Background: The 2017 American hypertension guidelines [American College of Cardiology/American Heart Association (ACC/AHA)] define a blood pressure measurement (BPM) procedure that differs from the Canadian Hypertension Education Program (CHEP) guidelines. We studied the impact of the BPM procedure on arterial hypertension (AHT) prevalence rate.

Methods: In 805 subjects, the mean of the first and second BPM (adapted ACC/AHA procedure) was compared with the mean of the second and third BPM (CHEP procedure).

Performance of a Blood Pressure Smartphone App in Pregnant Women: The iPARR Trial (iPhone App Compared With Standard RR Measurement).

Unlabelled: Hypertensive disorders are one of the leading causes of maternal death worldwide. Several smartphone apps claim to measure blood pressure (BP) using photoplethysmographic signals recorded by smartphone cameras. However, no single app has been validated for this use to date.

Reliability of single office blood pressure measurements.

Objectives: Standard operating procedures for office blood pressure measurement (OBPM) vary greatly between guidelines and studies. We aimed to compare the difference between a single OBPM and the mean of the three following measurements. Further, we studied how many patients with possible hypertension may be missed due to short-term masked hypertension (STMH) and how many might be overdiagnosed due to short-term white coat hypertension (STWCH).