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Background: An alerting reaction is a physician-induced phenomenon which produces a transient blood pressure rise in the office., Objective: To determine its relationship with target organ damage in treated hypertensives., Method: We used three different indexes for calculating alerting reaction depending on the first, second or third office blood pressure measurement. We correlated these indexes with glomerular filtration rate, left ventricular mass index and pulse wave velocity. Thereafter, for multivariate analysis, we selected the index which better correlated with each target organ damage subtype., Results: We included 174 adults, mean age 67(±13.7) years. 75% of the patients had some degree of blood pressure fall between measurements 1-3. In multivariate linear regression models, after adjusting for classic risk factors, two out of the three systolic alerting reaction indexes showed an independent association with target organ damage. After further adjusting for office blood pressure and white coat effect (calculated with standardized home blood pressure monitoring), left ventricular mass index maintained a statistically significant association., Conclusion: A higher alerting reaction in the office seems to be related to increased target organ damage in treated hypertensives and should not be considered an innocent phenomenon., (Copyright© Bentham Science Publishers; For any queries, please email at epub@benthamscience.org.)

We assessed prevalence and clinical characteristics of resistant hypertension (RH) and prevalence of false RH (white-coat effect [WCE] by home blood pressure [BP] monitoring), among a population of 302 treated hypertensive patients, mean age 66.6 (± 13.8), 67.5% women. Resistant hypertension was defined according to the American Heart Association criteria. Prevalence of RH was 10%, and the following five variables were independently associated with it: body mass index, diabetes, isolated systolic hypertension, orthostatic hypotension, and use of beta-blockers. Prevalence of WCE among subjects with office-RH was 27.6%. Our study identified easily measurable parameters related to RH. Standing BP should be systematically measured in individuals with RH.