Evaluation of the impact of atherosclerotic cardiovascular disease (ASCVD), particularly polyvascular disease, on 30-day and 365-day mortality among intensive care unit (ICU) patients diagnosed with sepsis.

Retrospective cohort study.

This study was conducted using data from the Medical Information Mart for Intensive Care IV, a publicly available critical care database from a tertiary care hospital in the US.

A total of 7895 adult ICU patients with sepsis were included between 2008 and 2022. Among them, 3314 (41.97%) had ASCVD, defined by International Classification of Diseases (ICD) codes for coronary artery disease, peripheral artery disease or stroke.

The primary outcomes were all-cause mortality at 30 and 365 days following ICU admission.

ASCVD patients with a greater number of disease beds tend to be male, older, have lower body mass index, heart rates, mean blood pressure, respiratory rate and temperature, compared with non-ASCVD patients. Before propensity-score matching, patients with ASCVD (3314) had significantly higher 30-day (29.21% vs 24.14%, p

Integrated management of sepsis and ASCVD—using targeted interventions such as tailored pharmacotherapy and risk factor modification—may reduce mortality and morbidity in this high-risk population.