Relationship between 24 h blood pressure variability and mortality in acute myocardial infarction patients

作者：Ying Liu, Wen Li, Shuoyan An, Zhengqin Zhai, Xinju Liu, Mengxue Hei, Gailing Chen · 发表于：Clinical Cardiology · 年份：2024 · DOI：10.1002/clc.24261 · 被引用次数：8 · 研究领域：Blood Pressure and Hypertension Studies、Acute Myocardial Infarction Research、Heart Rate Variability and Autonomic Control

BACKGROUND: In recent years, the mortality of patients with AMI has not declined significantly. The relationship between blood pressure variability (BPV) and acute myocardial infarction (AMI) is unclear. We explored the relationship between 24-h BPV and mortality in patients with AMI. HYPOTHESIS: The mortality of patients with AMI is related to BPV. We hope to provide therapeutic ideas for reducing the risk of death in patients with AMI. METHODS: This is a retrospective cohort study. We extracted and analyzed data from the MIMIC-IV 2.0, which was established in 1999 under the auspices of the National Institutes of Health (America). The average real variability (ARV) was calculated for the first 24-h blood pressure measurement after patients with AMI were admitted to the intensive care unit (ICU). Patients were divided into four groups according to ARV quartiles. The outcomes were 30-day, 1-year, and 3-year all-cause mortalities. Data were analyzed using Cox regression, Kaplan-Meier curves, and restricted cubic spline (RCS) curves. RESULTS: We enrolled 1291 patients with AMI, including 475 female. The patients were divided into four groups according to the qualities of diastolic blood pressure (DBP)-ARV. There were significant differences in the 30-day, 1-year and 3-year mortality among the four groups (p = .02, p < .001, p < .001, respectively). After adjustment for confounding factors, systolic blood pressure (SBP)-ARV could not predict AMI patient mortality (p > .05), while...