Association between SII and postoperative pulmonary infection in elderly patients undergoing laparoscopic abdominal surgery.

ABSTRACT:

Objectives

This study aimed to identify the contributing factors, including systemic immune-inflammation index (SII), for pulmonary infections in elderly patients undergoing laparoscopic abdominal surgery with tracheal intubation under general anesthesia.

Methods

A total of 356 eligible elderly patients were monitored post-surgery for pneumonia. Pathogens were identified from sputum samples, and factors like age, smoking, chronic obstructive pulmonary disease (COPD), intubation, anesthesia duration, and SII were analyzed for their influence on infection risk.

Results

The pathogens were predominantly Gram-negative bacteria, with Klebsiella pneumoniae being the most common (26%). Significant risk factors for developing pneumonia included advanced age, smoking, CO

SUBMITTER: Wen Q 

PROVIDER: S-EPMC12006073 | biostudies-literature | 2025

REPOSITORIES: biostudies-literature