One-Year Change in Diastolic Blood Pressure and Aortic Disease-Related Mortality in a Japanese General Population Aged 50-75 Years

Circ J. 2021 Nov 25;85(12):2222-2231. doi: 10.1253/circj.CJ-21-0514. Epub 2021 Sep 3.

Abstract

Background: Aortic diseases (ADs), including aortic dissection, aortic aneurysm, and aortic rupture, are fatal diseases with extremely high mortality rates. Hypertension has been reported to be associated with AD development; however, it remains unclear whether a 1-year change in diastolic blood pressure (DBP) is a risk factor for AD-related mortality in the general population.Methods and Results:This study used a nationwide database of 235,076 individuals (aged 50-75 years) who participated in the annual "Specific Health Check and Guidance in Japan" for 2 consecutive years between 2008 and 2010. There were 55 AD-related deaths during the follow-up period of 1,770 days. All subjects were divided into 4 groups based on the baseline DBP and change in DBP at 1 year: persistent high DBP, increasing DBP, decreasing DBP, and normal DBP. Kaplan-Meier analysis demonstrated that the persistent high DBP group had the greatest risk among the 4 groups. Multivariate Cox proportional hazard regression analysis demonstrated that both DBP and 1-year change in DBP were significantly associated with AD-related deaths. The prediction capacity was significantly improved by the addition of 1-year change in DBP to confounding risk factors.

Conclusions: This study demonstrated for the first time that a 1-year change in DBP was associated with AD-related deaths in the general population. Monitoring changes in DBP are of critical importance in the primary prevention of AD-related deaths in apparently healthy subjects aged 50-75 years.

Keywords: Aortic disease-related mortality; Apparently healthy subjects; Diastolic blood pressure.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Aortic Diseases*
  • Aortic Dissection* / complications
  • Blood Pressure / physiology
  • Humans
  • Hypertension*
  • Japan / epidemiology
  • Risk Factors