Radiofrequency Ablation versus Transarterial Chemoembolization in Patients with Hepatocellular Carcinoma Awaiting Liver Transplant: An Analysis of the Scientific Registry of Transplant Recipients |
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Affiliation: | 1. Department of Radiology, The Johns Hopkins University School of Medicine, Baltimore, Maryland;2. Department of Surgery, The Johns Hopkins University School of Medicine, Baltimore, Maryland;3. Department of Medicine, The Johns Hopkins University School of Medicine, Baltimore, Maryland;4. Department of Epidemiology, Johns Hopkins School of Public Health, Baltimore, Maryland |
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Abstract: | PurposeTo evaluate differences in waitlist mortality and dropout in liver transplant candidates with hepatocellular carcinoma (HCC) who undergo radiofrequency (RF) ablation versus transarterial chemoembolization (TACE).Material and MethodsFrom 2004 to 2013, 11,824 patients with HCC in the Scientific Registry of Transplant Recipients who underwent RF ablation or TACE were included and followed until December 31, 2019, or 5 years, whichever came first, and were stratified by the Milan criteria. Competing risk and Cox regression analyses to compare waitlist mortality and dropout were performed using adjusted hazard ratios (asHRs, with RF ablation group as reference). Regression models were adjusted for age, race, sex, calculated Model for End-Stage Liver Disease score, tumor size, and number.ResultsThere was no difference in waitlist mortality and dropout for patients outside the Milan criteria (n = 1,226) who underwent TACE (19.2%) or RF ablation (19.0%) (asHR, 0.91; 95% CI, 0.79–1.03). There was also no difference for patients inside the Milan criteria (n = 10,598) in waitlist mortality/dropout (TACE 13.4% vs RF ablation 12.9%) (asHR, 1.29; 95% CI, 0.79–2.09). A subgroup analysis within the Milan criteria demonstrated no difference between TACE and RF ablation treatments in patients with a single tumor of ≤3 cm (asHR, 0.92; 95% CI, 0.77–1.10), with a single tumor of >3 cm (asHR, 1.03; 95% CI, 0.79–1.34), or with >1 tumor (asHR, 0.89; 95% CI, 0.72–1.09).ConclusionsUsing the national registry data, no difference was found in waitlist mortality and dropout for transplant candidates with HCC who received TACE versus RF ablation. |
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