ArticleInternational journal of colorectal disease2025
Obesity Selectively Increases Intraoperative Risk in Left-Sided Colon Cancer Surgery: A Retrospective Cohort Study.
Article in International journal of colorectal disease, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers, 1 of them a synthesis that pooled it.
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Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
2 citing papers in PubMed, 1 synthesis or guideline pooled it.
- Intentional Preoperative Weight Loss for Obesity in Patients Undergoing Gastrointestinal Cancer Resections: A Systematic Review and Meta-analysis.Journal of gastrointestinal cancer · 2026Pooled it
- Comparison of different anastomosis methods in laparoscopically assisted left hemicolectomy for colon cancer.World journal of gastrointestinal endoscopy · 2025Article
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Authors and funding
7 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundObesity is traditionally viewed as a risk factor for adverse surgical outcomes. This study evaluated whether obesity (BMI ≥ 30 kg/m
methodsA retrospective cohort study was conducted of consecutive patients who underwent colon cancer resection at a single institution from 2015 to 2022. Patients were stratified by BMI (≥ 30 kg/m
resultsAmong the 737 patients, 33.5% were obese (BMI ≥ 30). Obese patients were younger and had higher rates of hypertension (55% vs 46%, p = 0.01), diabetes (25% vs 16%, p < 0.01), and respiratory disease (22% vs 11%, p < 0.01). In the overall cohort, obesity was not associated with increased rates of intraoperative complications, severe postoperative complications, conversion to open surgery, or 30-day mortality. In elective resections, obesity was independently associated with increased likelihood of ICU admission (aOR 1.82, 95% CI 1.08-3.09; p = 0.02), while in emergent resections obesity was independently associated with higher intra-operative complications (aOR 2.18, 95% CI 1.19-3.97; p = 0.01). Stratified analysis by resection site revealed that obesity was an independent risk factor associated with intraoperative complications (aOR 1.89, 95% CI 1.03-3.47; p = 0.04) and ICU admission (aOR 3.17, 95% CI 1.61-6.23; p < 0.01) following left-sided colectomy, but not right-sided surgery.
conclusionsObesity was not associated with adverse outcomes following colon cancer surgery overall. However, when stratified by anatomical subsite, obesity was independently associated with increased perioperative risk in left-sided resections. These findings support a more nuanced approach to operative planning and perioperative risk stratification.
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