VALIDITY CHECKING OF OSCILLOMETRIC AND AUSCULTATORY BLOOD PRESSURE MONITORING IN CLINICAL PRACTICE

Abstract

Objective: Ambulatory blood pressure monitoring (ABPM) is an out-of-office method of blood pressure (BP) measurement, that could detect pressure with oscillometric or auscultatory devices. According to the 2021 practice guideline, one of the principles of ABPM implementation in routine clinical practice is validity checking, which means result elimination in case of the insufficient number of readings. However, the prevalence of correct ABPM data is unclear in daily practice. The study aimed was to analyze the validation procedure of two algorithms of blood pressure detection (oscillometric and auscultatory). Design and method: We study ABPM patterns in sinus 242 patients (mean age, 62 [95% CI, 60–63] years, 57% men). The day-night period was determined as 24-hour clock-based definitions (nighttime: 01:00 to 05:59). Validity was verified by nalysing readings numbers in awake and night periods (not-valid: < 20 and < 7 readings, respectively). To compare groups, we used Mann-Whitney two-sample statistic (Stata 15). Results: The total number of non-valid readings was 19,8% (48/242) in oscillometric and 45,9% (111/242) auscultatory devices (p < 0,001). Conclusions: The oscillometric devices show better validity checking in daily practice compare to auscultatory. Approximately one-fifth of ABPM results in oscillometric devices have to be repeated due to non-valid readings in daily clinical practice.