Unraveling the obesity paradox in hepatocellular carcinoma: relative role of elevated body mass index on detrimental effects of postoperative complications.
Miho Akabane, Jun Kawashima, Abdullah Altaf, Selamawit Woldesenbet, François Cauchy, Federico Aucejo, Irinel Popescu, Minoru Kitago, Guillaume Martel, Francesca Ratti, Luca Aldrighetti, George A Poultsides, Yuki Imaoka, Andrea Ruzzenente, Itaru Endo, Ana Gleisner, Hugo P Marques, Sara Oliveira, Jorge Balaia, Vincent Lam, Tom Hugh, Nazim Bhimani, Feng Shen, Timothy M Pawlik
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引用次数: 0
Abstract
Background: The "obesity paradox" suggests higher body mass index (BMI) may correlate with better long-term outcomes in cancers. The impact of BMI on hepatocellular carcinoma (HCC) resection, regarding postoperative complications, remains unclear. We examined the interplay between BMI and complications on recurrence-free survival (RFS) among patients undergoing HCC resection.
Methods: Patients undergoing hepatectomy for HCC (2000-2023) were identified from an international database. Kaplan-Meier and Cox analyses assessed the protective impact of high BMI on RFS, considering interactions with complications.
Results: Among 1,588 patients (median BMI: 25.2 kg/m²; BMI > 25.0:793, BMI ≤ 25.0:795), 560 (35.3%) experienced complications. BMI > 25.0kg/m² was linked to better 5-year RFS than BMI ≤ 25.0kg/m² (50.3% vs 45.4%; p = 0.006). Patients without complications had better 5-year RFS than those with complications (51.7% vs 40.7%; p < 0.001). Among patients without complications, RFS was comparable among BMI groups (52.9% vs 50.6%; p = 0.215), but among patients with complications BMI > 25.0kg/m² was associated with better RFS (45.6% vs 34.2%; p < 0.001). Patients with complications and BMI > 25.0 kg/m² had RFS comparable to patients without complications, regardless of BMI. Multivariable analysis identified complications (HR:1.31 [1.08-1.60]; p = 0.007) as a predictor of worse RFS, while BMI > 25.0 kg/m² (HR: 0.79 [0.68-0.96]; p = 0.020) was protective. Spline analysis demonstrated recurrence risk declined with increasing BMI among patients with complications, crossing below 1 around 25.0kg/m². Stratifying the complication cohort (BMI ≤ 25.0/25.0-30.0/>30.0 kg/m²) demonstrated dose-dependent RFS improvement (p = 0.005).
Conclusion: High BMI correlated with better RFS following HCC resection among patients with complications. Concerns about complications should not deter surgery among high-BMI patients.
期刊介绍：
HPB is an international forum for clinical, scientific and educational communication.
Twelve issues a year bring the reader leading articles, expert reviews, original articles, images, editorials, and reader correspondence encompassing all aspects of benign and malignant hepatobiliary disease and its management. HPB features relevant aspects of clinical and translational research and practice.
Specific areas of interest include HPB diseases encountered globally by clinical practitioners in this specialist field of gastrointestinal surgery. The journal addresses the challenges faced in the management of cancer involving the liver, biliary system and pancreas. While surgical oncology represents a large part of HPB practice, submission of manuscripts relating to liver and pancreas transplantation, the treatment of benign conditions such as acute and chronic pancreatitis, and those relating to hepatobiliary infection and inflammation are also welcomed. There will be a focus on developing a multidisciplinary approach to diagnosis and treatment with endoscopic and laparoscopic approaches, radiological interventions and surgical techniques being strongly represented. HPB welcomes submission of manuscripts in all these areas and in scientific focused research that has clear clinical relevance to HPB surgical practice.
HPB aims to help its readers - surgeons, physicians, radiologists and basic scientists - to develop their knowledge and practice. HPB will be of interest to specialists involved in the management of hepatobiliary and pancreatic disease however will also inform those working in related fields.
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