RESUMO
Background: Hepatocellular carcinoma (HCC) is a major problem in cirrhotic patients. Liver resection has been established as an effective treatment in patients with well-preserved liver function. The goal of this study is to describe the perioperative results and survival rates after liver resection in patients with HCC. Patients and Methods: Retrospective study including patients with HCC who underwent liver resection as definitive treatment between January 2000 and August 2013. Clinical and surgical data were assessed; survival analysis was also performed using Kaplan-Meier curves and Log-rank test. Results: Twenty-five liver resections were performed during the study period, 7 cases in patients with no history of cirrhosis. Most cases were treated by minor resections, including bi-segmentectomies, mono-segmentectomies and non-anatomic resections. In 5 patients a right extended hepatectomy was performed. Intra and postoperative complications were registered in one and 8 cases, respectively. Four patients developed postoperative liver dysfunction and one case developed liver insufficiency. There was no perioperative mortality. The 3 and 5 years disease-free survival rate was 48 percent and 30 percent, respectively. Additionally, the 3 and 5 years overall survival rate was 65 percent and 51 percent, respectively. Conclusions: The present data confirm the feasibility and safety of liver resections in well-selected patients with HCC.
Introducción: El hepatocarcinoma (HCC) es una causa importante de mortalidad en pacientes con daño hepático crónico (DHC) y la resección quirúrgica es una alternativa de tratamiento en pacientes con adecuada función hepática. El objetivo del trabajo es describir los resultados perioperatorios y sobrevida a largo plazo de los pacientes con diagnóstico de HCC sometidos a resección quirúrgica. Métodos: Estudio descriptivo, retrospectivo. Análisis de registros clínicos, quirúrgicos y anátomo-patológicos de pacientes resecados con diagnóstico de HCC entre enero de 2000 y agosto de 2013 en nuestra institución. Las variables demográficas y clínicas se expresan en porcentajes y/o medianas, análisis de sobrevida mediante curvas de Kaplan-Meier y test de Log-rank. Resultados: Se realizó un total de 25 resecciones hepáticas por HCC, 7 casos (28 por ciento) en pacientes sin signos de DHC. En un 68 por ciento se realizaron resecciones menores, incluyendo bi-segmentectomías, mono-sectorectomías y resecciones no anatómicas; en 5 casos se realizó una hepatectomía derecha extendidas. Se registraron complicaciones intraoperatorias en un caso y postoperatorias en 8 pacientes (32 por ciento). Cuatro, presentaron disfunción hepática en el postoperatorio y un caso presentó insuficiencia hepática; no se registró mortalidad. La sobrevida libre de enfermedad observada a 5 años alcanzó un 30 por ciento. La sobrevida global de la serie a 3 y 5 años fue de 65 por ciento y 51 por ciento respectivamente, con una mediana de sobrevida de 65 meses. Conclusión: La resección hepática es una alternativa segura y factible en el tratamiento del HCC en pacientes seleccionados, con una sobrevida a largo plazo aceptable.
Assuntos
Humanos , Masculino , Feminino , Pessoa de Meia-Idade , Idoso de 80 Anos ou mais , Carcinoma Hepatocelular/cirurgia , Neoplasias Hepáticas/cirurgia , Carcinoma Hepatocelular/diagnóstico , Intervalo Livre de Doença , Seguimentos , Tempo de Internação , Neoplasias Hepáticas/diagnóstico , Estudos RetrospectivosRESUMO
Background: Ventral hernias are defects of the anterior abdominal wall, the laparoscopic repair has shown some advantages compared to open repair. Aim: To evaluate perioperative outcomes of the laparoscopic ventral hernia repair and to describe risk factors associated to recurrence. Methods: Non-concurrent prospective cohort study, clinical data of all patients who underwent laparoscopic ventral hernia repair between June 2006 and May 2013 were reviewed. Univariate analyses were performed using chi-square for categorical variables and U Mann-Whitney test for continuous variables. Multivariate analysis was performed using a logistic regression model. Results: 127 patients underwent laparoscopic ventral hernia, 52 percent female, age of 58.1 +/- 1.2 years old. Mean Body Mass Index (BMI) was 31 +/- 0.5 kg/m² and 67.7 percent were incisional hernias. Median operative time was 80 minutes (ranging from 30-350) and the median defect size was 6 cm (ranging from 2-20). Conversion to open surgery was necessary in 4 cases (3.9 percent). Median of hospital stay was 2 days (ranging from 1-15). Recurrence rate was 14.2 percent and the median to recurrence was 9 months. Recurrence rate was associated positively to defect size > 10 cm (p = 0.002), previous recurrence (p = 0.029) and operative time > 90 minutes (p = 0.017) in the univariate analyses. However, it was only associated to the first two in the multivariate analysis (OR 3.906; IC 1.734-13.058 y OR 5.93; IC 1.546-22.976, respectively). Conclusions: Laparoscopic repair of ventral hernia is a safe procedure with acceptable perioperative complication rates. Defect size and previous recurrence are associated to a higher recurrence rate.
Introducción: Las hernias ventrales son defectos de la pared abdominal, su reparación laparoscópica ha demostrado ventajas frente a la cirugía abierta. Objetivo: Mostrar nuestra experiencia en reparación laparoscópica de hernias ventrales y describir factores asociados a recidiva. Material y Método: Estudio prospectivo de cohorte no concurrente, revisión de registros clínicos de pacientes sometidos a hernioplastía ventral laparoscópica entre junio de 2006 y mayo de 2013. Registro de variables demográficas, perioperatorias y recidiva. Búsqueda de asociaciones entre variables y recidiva mediante análisis univariado, las que se ajustan usando un modelo de regresión logística. Resultados: Se analizan 127 pacientes, 52 por ciento mujeres, promedio de edad de 58,1 +/- 1,2 años e índice de masa corporal (IMC) de 31 +/- 0,5 kg/m². 67,7 por ciento fueron hernias incisionales, con una mediana de diámetro del defecto reparado de 6 cm (rango 2-20) y de tiempo operatorio de 80 min (rango 30-350). 4 casos (3,9 por ciento) fueron convertidos a cirugía abierta. La mediana de tiempo de hospitalización fue 2 días (rango 1-15). 14,2 por ciento de los casos presentaron recidiva. En el análisis univariado, el diámetro de defecto mayor a 10 cm (p = 0,002), antecedentes de recidiva herniaria (p = 0,029) y un tiempo quirúrgico mayor a 90 min (p = 0,017) se asociaron a recidiva. Posterior al análisis multivariado sólo los dos primeros mantuvieron su asociación (p = 0,01 y p = 0,03 respectivamente). Conclusión: La hernioplastía ventral laparoscópica es una técnica segura, con baja morbilidad. En esta serie inicial, el antecedente de recidiva y defectos mayores a 10 cm se asocian a mayor recidiva herniaria.
Assuntos
Humanos , Masculino , Feminino , Pessoa de Meia-Idade , Hérnia Ventral/cirurgia , Laparoscopia/métodos , Análise de Variância , Seguimentos , Complicações Intraoperatórias , Duração da Cirurgia , Complicações Pós-Operatórias , Estudos Prospectivos , Recidiva , Análise de Sobrevida , Resultado do TratamentoRESUMO
Evaluation of desinsectation programs carried out in the two Health Services from the V Region, was undertaken by comparing serologic prevalences of T. cruzi infection age groups exposed to the risk of infection in rural areas during the antivectorial campaign activities (1982 vs 1995). Thus, were studied 2,193 blood samples from children under 10 years of age, proceeding from six chagasic endemic provinces in which antitriatomic domiciliary insecticide sprayings had been performed. Indirect hemagglutination and ELISA tests were carried out to each of the blood samples. A total de 42 (1.9%) children resulted positive. As in five counties no positive cases were detected in the last five years it is possible to assume that vector transmission of T. cruzi should have been interrupted in them. When comparing prevalences existing in 1982 with the present ones, it is possible to observe a 63.5% of reduction of transmission in the V Region, been this reduction higher in the Aconcagua Health Service with 79.6% and lower in the Viña del Mar--Quillota Health Service with 55.6%. According to these results, comparison of prevalence of T. cruzi infection in children less than 10-year-old in diverse periods, allows evaluate the vectorial control of Triatoma infestans programs.