ArticleBMC cancer2025
Gender-based variations in surgical management of colorectal liver metastases: comprehensive analysis.
Article in BMC cancer, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
backgroundColorectal cancer with liver metastasis affects both men and women. However, therapeutic strategies and long-term outcomes could be influenced by patients' sex, due to variations in tumour biology, lifestyle, and dietary habits. By conducting a comprehensive comparative analysis, this study aims to detail differences in tumour characteristics, postoperative complications, recurrence rates, and survival outcomes between sexes.
methodsSingle-centre retrospective analysis between 2010 and 2022 of all patients undergoing liver surgery for colorectal liver metastases (CRLM) at the Department of Surgery, Charité- Universitätsmedizin Berlin. Patients were stratified by sex. Statistical analysis was performed using RV4.2.
resultsWe analysed 642 patients who underwent hepatic resections for CRLM. Baseline patient characteristics were comparable between sexes: However, significant differences (p < 0.001) were noted in body mass index (BMI), with females exhibiting lower BMIs (median BMI in females: 23.7 kg/m² vs. males: 26.5 kg/m²). Primary tumour locations varied significantly (p = 0.008), with females presenting more sigmoid colon tumours (37%), while males predominantly had rectal tumours (35%). RAS mutation rates were higher in females (54%) than males (34%, p = 0.005). A higher prevalence of bilobar metastases were evident in men (62%, p = 0.011), yet surgical techniques and complications showed comparable distributions. The time for resection was longer in males (median 304 min vs. 290 min in females); however, conversion to open surgery took place more often in females (5.2% vs. 2.3% in males). Postoperative complications and survival rates showed no significant differences by patients' sex.
conclusionDistinct sex-related patterns in tumour characteristics and postoperative outcomes in patients with CRLM were observed, emphasizing the need for further investigations to understand and address gender-based disparities for more personalized clinical management in the future.
trial registrationThis research was conducted with ethical approval from the relevant institutional review board Ethikkommission der Charité- Universitätsmedizin Berlin' (reference numbers EA2/006/16 and EA4/084/17). No other registration applied.
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