Jarod P McAteer1, Adam B Goldin, Patrick J Healey, Kenneth W Gow. 1. Division of Pediatric General and Thoracic Surgery, Seattle Children's Hospital, Seattle, WA 98105, USA; Department of Surgery, University of Washington School of Medicine, Seattle, WA 98195, USA. Electronic address: jarodmc@u.washington.edu.
Abstract
BACKGROUND: Factors influencing survival in children with HCC have not been studied. The objective of this study was to identify prognostic factors in pediatric HCC, and to determine whether regional lymphadenectomy is associated with improved survival. METHODS: We performed a retrospective cohort study using the Surveillance, Epidemiology and End Results (SEER) registry. All patients <20 years old diagnosed with HCC from 1973-2009 were included. Disease-specific survival was compared using Kaplan-Meier statistics and Cox proportional-hazards regression. RESULTS: We identified 238 patients (139 Male: 99 Female). Overall, 112 (47%) received an operation (resection/transplantation). Observed mortality and adjusted hazard of disease-specific death was greater for females (HR=2.07, p=0.013) and older children. Among operative patients, 44% were documented to have a regional lymphadenectomy. Although demographic factors did not differ between lymphadenectomy and non-lymphadenectomy groups, patients who underwent lymphadenectomy had a greater proportion of metastatic disease (24% vs. 15%) and fibrolamellar HCC (53% vs. 31%). Five-year survival for lymphadenectomy patients was superior to non-lymphadenectomy (70% vs. 57%). Adjusted mortality for lymphadenectomy was also improved relative to non-lymphadenectomy (HR=0.26, p=0.013). CONCLUSIONS: HCC in children is associated with poor survival, especially among children older than 4 years and girls. In surgical candidates, regional lymphadenectomy may be associated with improved survival.
BACKGROUND: Factors influencing survival in children with HCC have not been studied. The objective of this study was to identify prognostic factors in pediatric HCC, and to determine whether regional lymphadenectomy is associated with improved survival. METHODS: We performed a retrospective cohort study using the Surveillance, Epidemiology and End Results (SEER) registry. All patients <20 years old diagnosed with HCC from 1973-2009 were included. Disease-specific survival was compared using Kaplan-Meier statistics and Cox proportional-hazards regression. RESULTS: We identified 238 patients (139 Male: 99 Female). Overall, 112 (47%) received an operation (resection/transplantation). Observed mortality and adjusted hazard of disease-specific death was greater for females (HR=2.07, p=0.013) and older children. Among operative patients, 44% were documented to have a regional lymphadenectomy. Although demographic factors did not differ between lymphadenectomy and non-lymphadenectomy groups, patients who underwent lymphadenectomy had a greater proportion of metastatic disease (24% vs. 15%) and fibrolamellar HCC (53% vs. 31%). Five-year survival for lymphadenectomy patients was superior to non-lymphadenectomy (70% vs. 57%). Adjusted mortality for lymphadenectomy was also improved relative to non-lymphadenectomy (HR=0.26, p=0.013). CONCLUSIONS: HCC in children is associated with poor survival, especially among children older than 4 years and girls. In surgical candidates, regional lymphadenectomy may be associated with improved survival.
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