Data Management And Sharing System of China National Clinical Research Center for Neurological Diseases

Effect of Blood Pressure Variability on Cardiovascular Outcome in Diabetic and Nondiabetic Patients with Stroke

First author:Chen Bu-Xing,Tian Jun-Ping

Corresponding author:Chen Bu-Xing, Zhao Xing-Quan

Ischemic stroke; outcome; ambulatory blood pressur

essential_information

2014-10-09

Published articles

Journal:Journal of Stroke and Cerebrovascular Diseases

Publication type: Research Article

IF(IF): 1.646

PMID: 25183559 Link To Pubmed Full text Download

Background And Purpose

Method

A total of 373 ischemic stroke patients with large artery atherosclerosis were recruited and followed up. Ambulatory BP monitoring was performed in all patients and divided according to the 25th and 75th percentiles interval of SD of daytime systolic BP (SBP). Kaplan-Meier analysis and Cox regression were used to assess the relationship between BP variability and cardiovascular outcomes including stroke recurrence, vascular events and cardiovascular death.

Conclusion

We show that SBP variability is associated with cardiovascular outcomes in stroke patients without diabetes, but we didn’t find a correlation between SBP variability and cardiovascular outcomes in stroke patients with diabetes.

Main results

The 339 patients were included in the final analysis. During an average follow-up of 19.0 ± 5.1 months (.6-26.8 months), 69 (20.4%) cardiovascular events occurred in all patients. Kaplan-Meier analysis found that there were no differences in cardiovascular events-free survival among the different BP variability groups in diabetic patients (P = .995); however, nondiabetic patients with greater BP variability showed a lesser cardiovascular events-free survival (P = .039). Through Cox regression we found the SD of daytime SBP (hazard ratio 1.103; 95% CI 1.011-1.203) was associated with cardiovascular outcomes in nondiabetic patients with stroke.