Impact of preoperative underweight status on perioperative morbidity and mortality after liver resection for liver tumors: a meta-analysis.

ABSTRACT:

Background

The impact of preoperative underweight status on the outcomes of liver resections for liver tumors is debated. We aimed at conducting a meta-analysis to evaluate the associations between underweight and short-term clinical outcomes after liver resection.

Methods

PubMed, Cochrane Library, Embase, Scopus , and Web of Science databases were searched from inception to September 14, 2024 (updated on April 21, 2025) to identify eligible studies. Risk ratios (RRs) or mean differences (MDs) and 95% confidence intervals (CI) were calculated.

Results

Seven studies were included, with a total of 3,835 patients (normal weight group: 3,412 patients; underweight group: 423 patients). Findings indicated that, relative to individuals of normal weight, underweight patients

SUBMITTER: Tang X 

PROVIDER: S-EPMC12619945 | biostudies-literature | 2025

REPOSITORIES: biostudies-literature