The impact of low body mass index on clinical outcomes after coronary artery bypass graft surgery.

ABSTRACT:

Objective

To clarify the effects of being underweight on clinical outcomes after coronary artery bypass grafting (CABG) and possible associated sex differences.

Methods

The study population included 5914 patients who underwent their first isolated CABG; patients with acute myocardial infarction were excluded. Clinical outcomes within and beyond 30 days after CABG were compared across groups on the basis of preoperative body mass index (BMI): underweight (BMI <18.5; n = 318), normal (18.5 ≤ BMI < 25; n = 3835), overweight (25 ≤ BMI < 30; n = 1580), and obese (BMI ≥30; n = 181).

Results

The cumulative 30-day incidence of all-cause death was 3.2%, 1.2%, 0.4%, and 1.1% in the underweight, normal, overweight, and obese groups, respectively (log-rank P < .001). This

SUBMITTER: Kuroda Y 

PROVIDER: S-EPMC12745007 | biostudies-literature | 2025 Dec

REPOSITORIES: biostudies-literature