0270 : Ambulatory blood pressure monitors in our daily practice: why use it more often?

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Discordance between blood pressure (BP) measurement methods can occur and create ambiguity. The automated BP monitors (ABPM) are already available for years, In addition to 24-hour values, the circadian variation of BP adds prognostic significance in predicting cardiovascular outcome. But this devises are no often prescribed in our population. The objective of this study is to quantify concordance among BP measurement methods and to define the diagnostic sensitivity, specificity, and prognostic value of ABPM in a Moroccan population of hypertensive patients. The office mercury sphygmomanometer, the ambulatory BP monitor (ABPM), with an oscillometric device, and home self-measurement with an automatic device were compared in an observational prospective study. 50 patients were enrolled. Ambulatory BP monitoring was performed. A nondipping pattern was defined when nocturnal systolic BP dip was < 10% of daytime systolic BP Average BP results were similar between measurement methods with the exception of daytime ABPM, which was significantly higher: sphygmomanometer, 127.9±12.3/83.9±7.3 mm Hg; 24-hour ABPM, 132.6±10.7/ 84,2±8.7 mm Hg; day ABPM, 136.5±12.5/86.0±11.9 mm Hg; home self-measurement, 131.0±14.3/82.5±8.2 mm Hg. Discordance in the achievement of therapeutic goals was observed in 23 patients, with only 6 cases being explained by masked hypertension or “white coat syndrome” according to all measurements. The prevalence of nondipping was 44%, the nondipping pattern was associated with advanced age, obesity, diabetes, and overt cardiovascular or renal disease. the 3 measurement strategies provide similar average BP estimates. The ABPM device can be very valuable to rise some ambiguity and can give important prognostic information. The author hereby declares no conflict of interest