Pronóstico de pacientes con diagnóstico de carcinoma hepatocelular (CHC) en un hospital de máximo nivel de atención / Prognosis of patients with hepatocellular carcinoma (HCC) in a maximum level of hospital care

Introducción. El CHC afecta de manera importante la supervivencia porque se diagnostica tardíamente en muchos países. Objetivos. Describir la supervivencia, características clínicas y bioquímicas en pacientes con diagnóstico de CHC. Metodología. Estudio descriptivo retrospectivo en pacientes diagnosticados con CHC. Se recolectaron variables y se analizó el desenlace, con seguimiento de 6 meses. El diagnóstico de CHC se hizo según los criterios de la Asociación Europea para el estudio del hígado y criterios histológicos en caso de disponer de biopsia. Resultados. Un total de 35 pacientes ingresaron al estudio. Doce tenían diagnóstico de CHC (34%) y 23 (66%) diagnóstico de CHC asociado a cirrosis. Las etiologías de los casos de cirrosis y CHC fueron consumo de alcohol (12, 52%), virus B (VHB) (3, 13%), virus C (VHC) (1, 4,3%), criptogénica (5, 21,7%), esteatohepatitis no alcohólica (EHNA) (1, 4,3%), y coexistencia de virus B y alcohol (1, 4,3%). Con base en los criterios del BCLC cinco pacientes recibieron transplante hepático (15,6%), 3 (9,4%) resección quirúrgica, 8 (25%) quimioembolización transarterial (TACE) y 16 (50%) cuidado paliativo. Veintinueve (83%) pacientes fallecieron. Conclusiones. La mayoría de los pacientes solo recibieron terapia debido al diagnóstico tardío lo cual se relaciona con una supervivencia pobre en esta serie, de ahí que sea pertinente buscar políticas de atención en salud que permitan una vigilancia estrecha y tamización adecuada para CHC en los pacientes con hepatopatía crónica. Como se ha descrito por otros autores, los niveles de AFP se relacionan con la supervivencia de los pacientes, independiente del tratamiento recibido.

Introduction. Hepatocellular carcinoma (HCC) shortens survival significantly due to its usual late diagnosis.Objectives. Describe retrospectively the survival, clinical and biochemical characteristics in patients with a diagnosis of HCC.Patients and Methods. A retrospective study which included patients diagnosed with HCC was performed. The variables of interest were taken and the outcome was analyzed with a follow up of 6 month. The diagnosis of HCC was made in agreement with the criteria of the European Association for the Study of the Liver (EASL) and histologic criteria in the cases were biopsies were available. Results. 35 patients were included. Twelve (34%) had HCC and 23 (66%) cirrhosis with HCC. The etiologies of the cirrhosis and HCC cases were alcohol (12, 52%), HBV (3, 13%), HCV (1, 4.3%), cryptogenic (5, 21.7%), NASH (1, 4.3%), and coexistence of HBV and alcohol (1, 4.3%). In agreement with the Barcelona Clinic for Liver Cancer criteria 5 patients received liver transplantation (14.3%), 3 (8.6%) surgical resection, 8 (22.9%) TACE and 19 (54.2%) palliative care. Twenty nine (83%) of the patients died. Conclusions. The majority of patients only received palliative therapy due to the late diagnosis which is related with a poor survival in this series, that’s why is important to search for health policies that permit a close follow up and screening for HCC in patients with chronic liver disease. AFP levels are related with the survival of the patients independent of the treatment received.

Avanços no tratamento da hepatite pelo vírus B / Advances in the treatment of hepatitis B

Nos últimos anos, houve um grande progresso no tratamento da hepatite B crônica. Cinco drogas são hoje aprovadas para tratamento dessa virose: intérferon alfa, lamivudina, adefovir, entecavir e telbivudina. Os intérferons (convencionais ou peguilados) foram as primeiras drogas utilizadas no tratamento dessas infecções podendo levar a resposta sustentada (perda do DNA-VHB e do AgHbe) em até um terço dos casos tratados. Um grande número de análogos de nucleosídeos/nucleotídeos estão no momento, disponíveis para tratar a hepatite B; a eficácia da lamivudina, o primeiro análogo de nucleosídeo utilizado, é limitada pela elevada incidência de resistência. O adefovir tem eficácia comparável à lamivudina porém baixa freqüência de resistência. Entecavir e tenofovir também se mostram muito ativos em controlar a replicação do vírus da hepatite B, e estão associados com mínimo desenvolvimento de resistência, mesmo em tratamento prolongados. Outras drogas, tais como telbivudina, emtricitabina e clevudine, se tornarão em futuro próximo, novas armas no controle dessa virose. Co-infectados HIV/VHB representam um grupo de doentes de difícil manuseio e que hoje se beneficiam com combinações de drogas no esquema anti-retroviral potente que devem atuar em ambas as viroses. O desenvolvimento de antivirais mais potentes e novas associações de medicamentos, conjuntamente com a melhor compreensão dos mecanismos de resistência do vírus da hepatite B a terapia são importantes conquistas para melhorar a eficácia do tratamento e diminuir no futuro, a carga global de portadores do vírus da hepatite B.

Over the last years there has been considerable progress in the treatment of chronic hepatitis B. Five drugs are now approved for the treatment of this virosis: interferon alpha, lamivudine, adefovir, entecavir and telbivudine. Interferons (conventional or PEG) were the first medicine used in the treatment of hepatitis being able to lead the persistent response (loss of DNA-HBV and of AgHbe) to up to one third of treated cases. A large number of nucleoside/nucleotide analogues are, at present, available to treat hepatitis B. The efficacy of lamivudine, the first nucleoside analogue used, is limited by the high rate of resistance. Adefovir has efficacy comparable to that of lamivudine, but with low resistance rate. Entecavir and tenofovir have also been particularly active in the control of hepatitis B virus replication and are associated with minimal resistance development, even during long treatment regimens. Other drugs, such as telbivudine, emtricitabine and clevudine, will become new treatment options in the near future. Individuals co-infected with HIV/HBV are particularly difficult to manage and are nowadays able to benefit from combinations of drugs of the HAART therapy, which should be effective towards both viruses. The development of more potent antiviral drugs as well as new drug combinations, together with a better understanding of hepatitis B virus resistance mechanisms are important milestones to improve treatment efficacy and to diminish, in the future, the global burden of hepatitis B virus.