SynthesisPloS one2025
Association of preoperative body mass index with postoperative complications and survival for patients with gastric cancer: A systematic review and meta-analysis.
Synthesis in PloS one, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
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Who cites it
7 citing papers in PubMed.
- Impact of artificial intelligence intervention on awareness of anatomical landmarks in laparoscopic gastrectomy: An exploratory study.Surgical endoscopy · 2026Article
- Comparative benefits of robotic gastrectomy over laparoscopic surgery across different age and BMI groups.Surgical endoscopy · 2026Article
- Dynamic machine learning model integrating resting energy expenditure for predicting postoperative complications after gastrectomy for gastric cancer.Journal of cancer research and clinical oncology · 2026Article
- Preoperative short physical performance battery in older adult patients with gastric cancer is associated with postoperative complications.Aging clinical and experimental research · 2026Article
- Low BMI and postoperative outcomes in elderly hip fracture patients: a Japanese nationwide database study.Journal of bone and mineral metabolism · 2026Article
- Visceral adiposity rather than BMI predicts overall survival after curative gastrectomy for gastric cancer: a retrospective cohort study with age-stratified analyses.Frontiers in medicine · 2026Article
- Poor nutritional status based on controlling nutritional status score and nutritional risk index may be related to the occurrence of complications after laparoscopic treatment in patients with gastrointestinal tumors aged no more than 60 years.Frontiers in oncology · 2025Article
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4 authors.
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Abstract
objectiveThe relationship among body mass index (BMI), postoperative complications, and clinical outcomes in patients undergoing gastrectomy for gastric cancer remains unclear. This study aimed to evaluate this association using a meta-analysis.
methodWe conducted a systematic search of the PubMed, Embase, and Cochrane Library databases up to February 25, 2024. Patients were classified into underweight (<18.5 kg/m2), normal weight (18.5-25.0 kg/m2), and overweight (≥25.0 kg/m2) groups based on BMI categories. Meta-analysis was performed using a random-effects model. Additionally, exploratory sensitivity and subgroup analyses were performed.
resultsTwenty-two studies involving 41,144 patients with gastric cancer were included for quantitative analysis. Preoperative underweight (odds ratio [OR]: 1.26; 95% confidence interval [CI]: 1.03-1.55; P = 0.024) and overweight (OR: 1.19; 95%CI: 1.09-1.30; P <0.001) were associated with an increased risk of postoperative complications. Furthermore, preoperative underweight was associated with poorer overall survival (hazard ratio [HR]: 1.40; 95%CI: 1.28-1.53; P <0.001), whereas preoperative overweight was associated with better over-survival (HR: 0.82; 95%CI: 0.73-0.91; P <0.001). Furthermore, preoperative underweight was not associated with disease-free survival (HR: 1.48; 95%CI: 0.97-2.26; P = 0.069), whereas preoperative overweight was associated with longer disease-free survival (HR: 0.80; 95%CI: 0.70-0.91; P = 0.001). In terms of specific postoperative complications, preoperative underweight was associated with an increased risk of septic shock (OR: 3.40; 95%CI: 1.26-9.17; P = 0.015) and a reduced risk of fever (OR: 0.39; 95%CI: 0.18-0.83; P = 0.014). Preoperative overweight was associated with an increased risk of wound infections (OR: 1.78; 95%CI: 1.08-2.93; P = 0.023), intestinal fistula (OR: 5.23; 95%CI: 1.93-14.21; P = 0.001), arrhythmia (OR: 6.38; 95%CI: 1.70-24.01; P = 0.006), and pancreatic fistula (OR: 3.37; 95%CI: 1.14-9.96; P = 0.028).
conclusionThis study revealed that both preoperative underweight and overweight status were associated with an increased risk of postoperative complications. Moreover, the postoperative survival outcomes were significantly better in overweight compared to that of underweight patients.
trial registrationRegistration: INPLASY202480004.
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