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Observational Study
. 2015 Oct;28(10):1248-56.
doi: 10.1093/ajh/hpv022. Epub 2015 Mar 11.

Orthostatic Changes in Blood Pressure and Mortality in the Elderly: The Pro.V.A Study

Nicola Veronese  1 , Marina De Rui  2 , Francesco Bolzetta  2 , Sabina Zambon  3 , Maria Chiara Corti  4 , Giovanella Baggio  5 , Elena Debora Toffanello  2 , Stefania Maggi  6 , Gaetano Crepaldi  6 , Egle Perissinotto  7 , Enzo Manzato  8 , Giuseppe Sergi  2
Affiliations
Observational Study

Orthostatic Changes in Blood Pressure and Mortality in the Elderly: The Pro.V.A Study

Nicola Veronese et al. Am J Hypertens. 2015 Oct.

Abstract

Background: An extensive, albeit contrasting literature has suggested a possible role for orthostatic hypotension as a risk factor for cardiovascular (CVD) and non-CVD mortality, while no data are available for orthostatic hypertension. We investigated whether orthostatic changes in blood pressure (BP) were associated with any increased risk of all-cause, CVD or non-CVD mortality in a group of elderly people.

Methods: Two thousand seven hundred and eighty six community-dwelling older participants were followed for 4.4 years. Participants were grouped according to whether they had a drop ≤20 mm Hg in systolic, or ≤10 mm Hg in diastolic BP (orthostatic hypotension), an increase in mean orthostatic systolic BP ≥20 (orthostatic hypertension), or normal changes within 3 minutes of orthostatism.

Results: During follow-up, 640 subjects died, 208 of them for CVD-related reasons. Adjusted Cox's regression analysis revealed that, compared with normal changes, orthostatic hypertension was associated with higher all-cause (HR = 1.23; 95% CI: 1.02-1.39) and CVD-related mortality (HR = 1.41; 95% CI: 1.08-1.74), while orthostatic hypotension was only associated with a higher non-CVD mortality (HR = 1.19; 95% CI: 1.01-1.60). Orthostatic hypertension emerged as a predictor of all-cause mortality for: participants over 75 years old; participants with a BMI below 25 kg/m2; participants with no CVD or disabilities; and those taking less than three medications. Orthostatic hypertension also predicted CVD-related mortality in individuals with no hypertension, heart failure, coronary artery disease, or atrial fibrillation.

Conclusions: Orthostatic hypertension and hypotension both seem to be relevant risk factors for mortality in the elderly, orthostatic hypertension correlating with all-cause and CVD-related mortality and orthostatic hypotension with non-CVD mortality.

Keywords: blood pressure; cardiovascular disease; elderly; hypertension; mortality.; orthostatic hypertension; orthostatic hypotension.

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