Higher visit-to-visit SBP variability was significantly associated with increased incidence of cardiovascular disease and mortality in patients with essential hypertension.
Cohort (n=485)
Does higher visit-to-visit SBP variability correlate with increased incidence of cardiovascular disease and mortality in patients with essential hypertension?
Visit-to-visit SBP variability is an independent risk factor for mortality and correlates with systemic atherosclerotic changes and CVD incidence in patients with essential hypertension.
OBJECTIVE: To assess how visit-to-visit variability of SBP correlates with systemic atherosclerotic change and various prognoses. BACKGROUND: Visit-to-visit SBP variability correlates with cardiovascular events. However, the mechanisms underlying the impact of visit-to-visit SBP variability on prognoses are poorly understood. METHODS AND RESULTS: A total of 485 patients with essential hypertension from the Non-Invasive Atherosclerotic Evaluation in Hypertension (NOAH) study cohort were included. We analyzed the correlation between visit-to-visit SBP variability and multiple clinical parameters. Next, we prospectively examined the correlation of SBP variability and frequency of cardiovascular disease (CVD) and total mortality. Patients with higher SBP variability exhibited significantly higher rates of statin use, as well as higher pulse wave velocity (PWV), left-ventricular mass index (LVMI), plaque score, and resistive index of the common carotid artery; these patients also exhibited lower estimated glomerular filtration rate. Kaplan-Meier analysis demonstrated that patients with higher SBP variability have a significantly higher incidence of CVD and mortality rate. The hazard ratio of SBP variability for incidence of CVD was greatly diminished after adjustment for intima-media thickness, plaque score, and resistive index, and was slightly diminished after adjustment for PWV and LVMI. Visit-to-visit SBP variability remained an independent risk factor for mortality after adjustment. CONCLUSION: Visit-to-visit SBP variability correlates significantly with systemic atherosclerotic change, incidence of CVD, and mortality rate. Altered arterial functions, such as macrovascular atherosclerosis and vascular resistance, are responsible for the correlations between visit-to-visit SBP variability and incidence of CVD.
Kawai et al. (Tue,) conducted a cohort in essential hypertension (n=485). Visit-to-visit SBP variability vs. Lower SBP variability was evaluated on Incidence of cardiovascular disease (CVD) and total mortality. Higher visit-to-visit SBP variability was significantly associated with increased incidence of cardiovascular disease and mortality in patients with essential hypertension.