The study found that NAFLD-HCC patients undergoing curative therapy, such as liver resection, had improved disease-free survival and overall survival compared to non-NAFLD HCC patients. However, there were higher rates of peri-and post-operative complications reported in NAFLD-HCC patients, and significant inter-study heterogeneity limited further analysis.
Background: This systematic review and meta-analysis aimed to compare the outcomes of curative therapy (resection, transplantation, ablation) for hepatocellular carcinoma (HCC) arising from nonalcoholic fatty liver disease (NAFLD) and non-NAFLD etiologies. Methods: A systematic search of PubMed, EMBASE and Cochrane Library was conducted for studies comparing survival, peri-and post-operative outcomes. Quality assessment was performed using the Newcastle-Ottawa scale. Results: Findings for 5579 patients were pooled across 9 studies and examined. Analysis demonstrated improved disease-free survival (DFS; HR 0.85, 95% CI 0.74-0.98, p = 0.03) and overall survival (OS; HR 0.87; 95% CI 0.81-0.93; p < 0.0001) in NAFLD-HCC patients undergoing liver resection as compared to non-NAFLD HCC patients. NAFLD-HCC patients undergoing all forms of curative therapy were similarly associated with improved OS (HR 0.96; 95% CI 0.86-1.06; p = 0.40) and DFS (HR 0.85; 95% CI 0.74-0.98; p = 0.03), albeit results being significant only for DFS. Only 2 studies reported higher rates of peri-and post-operative complications in patients with NAFLD-HCC. Significant inter-study heterogeneity precluded further analysis. Conclusion: NAFLD-HCC patients can enjoy long-term survival benefit with aggressive curative therapy. Peri-and post-operative morbidity should be mitigated with pre-operative optimization of comorbidities, and deliberately close post-operative monitoring.
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