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      INFLUENCE OF HEPATOCELLULAR CARCINOMA ETIOLOGY IN THE SURVIVAL AFTER RESECTION Translated title: Influência da causa do carcinoma hepatocelular na sobrevida de pacientes após ressecção

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          ABSTRACT

          Background:

          Hepatocellular carcinoma (HCC) is the most frequent type of primary liver cancer and its incidence is increasing around the world in the last decades, making it the third cause of death by cancer in the world. Hepatic resection is one of the most effective treatments for HCC with five-year survival rates from 50-70%, especially for patients with a single nodule and preserved liver function. Some studies have shown a worse prognosis for HCC patients whose etiology is viral. That brings us to the question about the existence of a difference between the various causes of HCC and its prognosis.

          Aim:

          To compare the prognosis (overall and disease-free survival at five years) of patients undergoing hepatectomy for the treatment of HCC with respect to various causes of liver disease.

          Method:

          Was performed a review of medical records of patients undergoing hepatectomy between 2000 and 2014 for the treatment of HCC. They were divided into groups according to the cause of liver disease, followed by overall and disease-free survival analysis for comparison.

          Results:

          There was no statistically significant difference in the outcomes of the groups of patients divided according to the etiology of HCC. Overall and disease-free survival at five years of the patients in this sample were 49.9% and 40.7%, respectively.

          Conclusion:

          From the data of this sample, was verified that there was no prognostic differences among the groups of HCC patients of the various etiologies.

          RESUMO

          Racional:

          O carcinoma hepatocelular (CHC) é o mais frequente tipo de câncer primário do fígado e a sua incidência vem aumentando nas últimas décadas, tornando-o hoje a terceira causa de morte por câncer no mundo. A ressecção hepática é um dos tratamentos mais eficazes para ele com taxas de sobrevida em cinco anos de 50-70%, especialmente para pacientes com nódulo único e função hepática preservada. Alguns estudos mostraram pior prognóstico para os pacientes com CHC cuja causa é a infecção por vírus B ou C. Isso leva à questão sobre a existência de possível diferença entre as diversas causas e o prognóstico.

          Objetivo:

          Comparar o prognóstico (sobrevida global e livre de doença em cinco anos) de pacientes submetidos à hepatectomia para o tratamento do CHC com relação às diversas causas da hepatopatia.

          Método:

          Foi realizado levantamento de prontuários dos pacientes submetidos à hepatectomia entre 2000 e 2014 para tratamento de CHC. Eles foram divididos em grupos de acordo com a causa da hepatopatia, sendo feita análise de sobrevida para comparação.

          Resultados:

          Não houve diferença estatisticamente significante de prognóstico entre os grupos de pacientes divididos conforme a causa do CHC. A sobrevida global e livre de doença em cinco anos foi de 49.9% e 40.7%, respectivamente.

          Conclusão:

          Pôde-se constatar que não houve diferença em relação ao prognóstico entre os grupos de pacientes das diversas causas de CHC.

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          Most cited references34

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          An analysis of 412 cases of hepatocellular carcinoma at a Western center.

          Using a large single-institution experience at a Western referral center, the authors examine partial hepatectomy as treatment of hepatocellular carcinoma and relate treatment outcomes to clinical parameters, including the etiology of underlying cirrhosis. Four hundred and twelve patients seen between December 1991 and January 1998 were identified in a prospective database. Data about the surgical procedure, perioperative complications, and long-term outcome were examined. One hundred twenty-six patients did not have underlying cirrhosis. Of the 286 patients with cirrhosis, 119 were the result of hepatitis B, 39 hepatitis C, 36 both B and C, 43 ethanol abuse, and the remainder other causes. Two hundred forty-three patients underwent surgical exploration, and 154 patients underwent hepatic resection. Seven (4.5%) died from the surgery. One hundred forty-three patients were treated by ablative methods. Patients with cirrhosis had smaller tumors but nevertheless had a lower resectability rate. Neither the presence of cirrhosis nor the etiology of the cirrhosis altered the perioperative morbidity or mortality rate. The greatest determinant of long-term outcome was resectability. The size of the lesion, an alpha-fetoprotein level >2000 ng/ml, and vascular invasion were also determinants of poor outcome. The presence of cirrhosis was a detrimental factor when analysis was stratified for size of tumor. The cause of cirrhosis did not influence the long-term outcome. The 5-year survival rate was 57% for patients with resected lesions 10 cm. Partial hepatectomy is safe, effective, and potentially curative therapy for hepatocellular carcinoma. The presence of cirrhosis did not affect the surgical mortality rate but did affect the long-term survival rate. The cause of cirrhosis did not influence outcome. As treatment for small hepatocellular carcinomas, partial hepatectomy produces results similar to those of transplantation. For patients with large tumors who are poor candidates for transplantation, resection results in long-term survival in one third of patients.
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            Epidemiology of hepatocellular carcinoma in USA.

            H Serag (2007)
            Hepatocellular carcinoma (HCC) is increasing in frequency the USA. Age-adjusted incidence, hospitalization, and mortality rates have doubled over the past two decades. There are striking differences in the incidence of HCC related to age, gender, race, and geographic region. Although it remains an affliction of the elderly (mean age 65), there has been a considerable shift toward younger cases. There is a birth cohort effect with those born after 1945. Men are affected three times more frequently than women, Asians two times more than African American and Hispanic people, who are affected two times more often than Caucasians. However, the recent increase has disproportionately affected Caucasian (and Hispanic) men between ages 45 and 65. Hepatitis C virus (HCV) infection acquired 2-4 decades ago explains at least half of the observed increase in HCC; HCV-related HCC is likely tocontinue to increase for the next decade. A variable but significant proportion of cases (15-50%) do not have evidence for the risk factors of either viral hepatitis or heavy alcohol consumption. Insulin resistance syndrome manifesting as obesity and diabetes is emerging as a risk factor for HCC in the USA and may operate through the formation of non-alcoholic fatty liver disease (NAFLD); however, its effect on the current trend in HCC remains unclear. While there has been a small recent improvement in survival, it remains generally dismal (median 8 months). Population-based data in the USA indicate low application rate of HCC potentially curative therapy and marked regional differences.
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              Clinical and epidemiological aspects of hepatocellular carcinoma in Brazil

              OBJECTIVES: We performed a national survey to update hepatocellular carcinoma (HCC) epidemiology in Brazil and determined the clinical and epidemiological profiles of patients with HCC in different Brazilian regions. METHODS: Data from 29 centers included 1,405 patients diagnosed with HCC from 2004 to 2009. RESULTS: The median age was 59 (1–92 years old; 78% male). At diagnosis, females were older than males (median age: 62 vs. 59 years old respectively; p<0.0001). Ninety‐eight percent of the patients had cirrhosis (1279/1308). Hepatitis C virus was the main etiology (54%), followed by hepatitis B virus (16%) and alcohol (14%). In Southeastern and Southern Brazil, hepatitis C virus accounted for over 55% of cases. In the Northeast and North, hepatitis C virus accounted for less than 50%, and hepatitis B virus accounted for 22–25% of cases; hepatitis B was more prevalent in the Northern than in the Southern regions. Some 43%, 35%, and 22% of patients were in early, intermediate, and advanced stages respectively. Initial therapies for HCC included chemoembolization or embolization (36%), percutaneous ablation (13%), liver resection (7%), and sorafenib (1%). Liver transplantation was performed in 242 patients (19%), but it was the initial therapy for only 56 patients (4%). CONCLUSION: The epidemiology, classification, and therapy selection for HCC varied among Brazilian regions. Hepatitis C infection was the most common etiology of liver cirrhosis; chemoembolization was the most common therapy employed. Liver cirrhosis was the main risk factor for HCC development in Brazil.
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                Author and article information

                Journal
                Arq Bras Cir Dig
                Arq Bras Cir Dig
                abcd
                Arquivos Brasileiros de Cirurgia Digestiva : ABCD
                Colégio Brasileiro de Cirurgia Digestiva
                0102-6720
                2317-6326
                Apr-Jun 2016
                Apr-Jun 2016
                : 29
                : 2
                : 105-108
                Affiliations
                Liver Unit, Department of Gastroenterology, University of São Paulo Medical School, São Paulo, SP, Brazil
                Author notes
                Correspondence: Felipe de Lucena Moreira Lopes E-mail: flmlopes@ 123456uol.com.br

                Conflicts of interest: none

                Article
                10.1590/0102-6720201600020010
                4944746
                27438037
                9c7c8e52-cb9b-4a54-b272-10dd28cf259c

                This is an open-access article distributed under the terms of the Creative Commons Attribution License

                History
                : 15 December 2015
                : 22 March 2016
                Page count
                Figures: 10, Tables: 4, Equations: 0, References: 20, Pages: 4
                Categories
                Original Article

                carcinoma, hepatocellular,hepatectomy,survival analysis,etiology,prognosis

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