Short-term blood pressure variability, arterial stiffness, and cardiovascular events: results from the Bordeaux cohort

Autor: Philippe Gosse, Christophe Tzourio, Antoine Cremer, Romain Boulestreau, Julien Doublet, Julie Gaudissard
Přispěvatelé: Bordeaux population health (BPH), Université de Bordeaux (UB)-Institut de Santé Publique, d'Épidémiologie et de Développement (ISPED)-Institut National de la Santé et de la Recherche Médicale (INSERM)
Rok vydání: 2021
Předmět:
Zdroj: Journal of Hypertension
Journal of Hypertension, Lippincott, Williams & Wilkins, 2021, ⟨10.1097/hjh.0000000000002735⟩
ISSN: 1473-5598
0263-6352
DOI: 10.1097/hjh.0000000000002735
Popis: Objective Short-term blood pressure variability derived from 24-h ambulatory monitoring is associated with poor cardiovascular prognosis. However, previous analyses of this have clearly been influenced by clinical cofounders, particularly blood pressure (BP) level. Arterial stiffness is a powerful marker of cardiovascular risk, which may influence BP variability. In this study, we assessed the prognostic value of BP variability based on 24-h ambulatory measurements and adjusted for arterial stiffness. Methods Population: Bordeaux cohort of hypertensive patients. Inclusion criteria were 24-h ambulatory BP monitoring at baseline with measurements every 15' day and night, determination of wake-up time and bedtime, and assessment of arterial stiffness with monitoring of Korotkoff sound arrival time. A total of 969 patients (age 54 ± 14 years) with an average follow up of 120 ± 78 months and 178 cardiovascular recorded events were included. Results In univariate survival analyses, the standard deviations of day, night, and 24-h SBP were associated with the occurrence of cardiovascular events. The standard deviation of night-time SBP showed the strongest association with the outcome variable and was entered into multivariate analyses. In multivariate analyses, night-time SBP variability remained significantly associated with the occurrence of cardiovascular events after adjusting for major cardiovascular risk factors, 24-h SBP, and arterial stiffness. BP variability and arterial stiffness showed no significant association. Conclusion Our results suggest that variability of night-time SBP is an important marker of the risk of cardiovascular events in hypertensive patients, independently of average 24-h BP and arterial stiffness.
Databáze: OpenAIRE