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Objectives:

Blood pressure (BP) measurement in atrial fibrillation (AF) patients is problematic and automated monitors are regarded as inaccurate. The optimal procedure for validating BP monitors in AF is questionable. This study evaluated the accuracy of a novel professional oscillometric upper-arm cuff device (Microlife WatchBP Office), which has an algorithm for detecting AF and then applies an AF-specific BP measurement algorithm. BP variability, which is inherently increased in AF patients, was considered in the analysis.

Methods:

Subjects with sustained AF were included in a validation study using the same arm sequential measurement method of the Universal Standard (ISO 81060-2: 2018) for special populations. Analysis was performed in all subjects and separately in those with and without high reference BP variability (> 12/8 mmHg SBP/DBP).

Results:

Thirty-five subjects with 105 paired test/reference BP …