ABSTRACT
OBJECTIVE: To describe the results of the extension of surgical treatment and adjuvant chemotherapy (ACT) in incidental gallbladder cancer (CVB), in terms of postoperative morbidity (POM) and 5-year overall survival rate. METHOD: Case series of patients operated on for incidental GBC in Clínica Mayor, Temuco, Chile (2001-2016). All cases were treated by partial hepatectomy (segments IVb and V), and regional lymphadenectomy. The minimum follow-up time was 12 months. Outcome variables were MPO and 5-year overall survival rate. Other variables of interest were: infiltration depth in vesicular wall, lymph nodes and resected liver; surgical time, need for reoperation, hospital stay, follow-up and mortality. Descriptive statistics were applied as well as bivariate analysis applying Fisher's exact and t-test and non-parametrical tests for continuous variables and Kaplan Meier curves. RESULTS: The series was composed of 50 patients, whose average age was 58.6 ± 9.6 years; 68.0% of which were women. The mean surgical time and hospital stay were 224 ± 93 min (90 to 480) and 6.9 ± 2.9 days (4 to 20), respectively. POM was 28.0%. 5-year overall survival rate was 47%. There were no reoperations or mortality. CONCLUSIONS: The results verified in terms of POM and 5-year overall survival rate are similar to previously reported series.
OBJETIVO: Describir los resultados de la extensión del tratamiento quirúrgico y la quimioterapia adyuvante en el cáncer de vesícula biliar (CVB) incidental, en términos de morbilidad posoperatoria (MPO) y de supervivencia global (SVG) a 5 años. MÉTODO: Serie de casos de pacientes intervenidos por CVB incidental en Clínica Mayor, Temuco, Chile (2001-2016). Todos los casos fueron tratados mediante hepatectomía parcial de segmentos IVb y V, y linfadenectomía regional. El tiempo mínimo de seguimiento fue de 12 meses. La variables resultado fueron: MPO y la SVG a 5 años. Otras variables de interés fueron: profundidad de infiltración en la pared vesicular, de linfonodos y del hígado resecado, tiempo quirúrgico, necesidad de reintervención, estancia hospitalaria, seguimiento y mortalidad. Se aplicó estadística descriptiva, y análisis bivariados, aplicando prueba exacta de Fisher y t-test; o pruebas no paramétricas para variables continuas; y curvas de Kaplan-Meier. RESULTADOS: La serie está compuesta por 50 pacientes, con edad media de 58.6 ± 9.6 años; 68.0% de los cuales eran mujeres. La media del tiempo quirúrgico y de estancia hospitalaria fueron 224±93 minutos (90 a 480) y 6.9±2.9 días (4 a 20) respectivamente. La MPO fue 28.0%. La SVG a 5 años fue 47%. No hubo reintervenciones ni mortalidad. CONCLUSIONES: Los resultados verificados en términos de MPO y SVG a 5 años, son similares a los reportados anteriormente.
Subject(s)
Gallbladder Neoplasms/drug therapy , Gallbladder Neoplasms/surgery , Aged , Chemotherapy, Adjuvant , Female , Gallbladder Neoplasms/mortality , Humans , Incidental Findings , Male , Middle Aged , Postoperative Complications/epidemiology , Survival Rate , Treatment OutcomeABSTRACT
BACKGROUND: Equipoise exists regarding the benefit of adjuvant therapy (AT) in patients with gallbladder cancer (GBC). The aim of this study was to critically review the available evidence for the effectiveness of AT in patients with GBC following surgery with curative intent. METHODS: A systematic review was performed. Relevant studies were identified from Trip Database, BIREME-BVS, SciELO, Cochrane Central Register, WoS, MEDLINE, EMBASE and SCOPUS. Adjuvant therapies considered included chemotherapy, chemoradiotherapy, and radiotherapy. The primary outcome was overall survival (OS). Subgorup analysis of patients with positive lymph node disease (PLND), positive surgical margin (PSM), or advanced stage (AS) were performed. RESULTS: 748 related articles were identified; 27 met the selection criteria (3 systematic reviews and 24 observational studies). Evidence provided was moderate, poor and very poor for chemotherapy, chemoradiotherapy, and radiotherapy. Existing evidence is not robust, but suggests certain benefits with AT in improving OS, especially in patients with PLND, PSM and AS. CONCLUSION: Results do not provide strong evidence that AT is effective in patients who undergo resection for GBC. Subgroups of PLND and PSM may have a survival advantage. Future studies with appropriate internal validity and adequate number of patients are required to better answer this question.
Subject(s)
Gallbladder Neoplasms/therapy , Chemoradiotherapy , Chemotherapy, Adjuvant , Gallbladder Neoplasms/mortality , Gallbladder Neoplasms/pathology , Humans , Lymphatic Metastasis , Margins of Excision , Neoplasm Staging , Radiotherapy, Adjuvant , Survival AnalysisABSTRACT
El cáncer de la vesícula biliar (CaVB), es una neoplasias frecuente en nuestro país. La supervivencia (SV) global no supera el 40% a 5 años. La invasión de la túnica serosa y el estadio IIIB, se asocian a menor SV por considerarse una etapa avanzada de la enfermedad; por ello no hay consenso respecto del rol de la cirugía en estos casos. El objetivo de este artículo es analizar la evidencia existente respecto del rol de la cirugía en el tratamiento de un paciente con CaVB estadio IIIb. Se realizó una búsqueda sistemática de la evidencia disponible en la bases de datos Clinical Evidence, National Health Service, Health Technology Assessment, Tripdatabase, Cochrane Library y PubMed. Se buscaron a documentos de resumen de la evidencia (overviews, guías de práctica clínica (GPC, tablas GRADE), artículos secundarios (revisiones sistemáticas/RS) y artículos primarios (ensayos clínicos/EC y estudios observacionales/EO). Posteriormente, la evidencia se clasificó según la propuesta de la CEBM 2009. Se encontró un total de 420 documentos relacionados: 25 overviews, 15 tablas GRADE, 30 GPC, 37 RS, 99 EC y 214 EO. Al examinar en detalle todos los documentos; Se comprobó que sólo 17 estaban relacionados con los resultados del tratamiento quirúrgico de la CaVB en etapa III; y 5 se refieren a esta (3 EO, 1 GPC y una recomendación del NCI), pero ninguno al estadio IIIb. Existen pocos estudios relacionados, la mayor parte de ellos son de tipo retrospectivo, con un pequeño número de pacientes incluidos, de población y procedimientos quirúrgicos heterogéneos; por ende, es muy sacar conclusiones y realizar recomendaciones basadas en la evidencia existente.
Gallbladder cancer (GBC), is a common neoplasm in our country. The overall survival rate (OSR) does not exceed 40% at 5 years. The invasion of the serosa and IIIB stage, are associated with lower OSR seen it are an advanced stage of the disease, so there is no consensus on the role of surgery in this type ofpatients. The aim of this study is to analyze the existing evidence concerning the role of surgery in the treatment of a patient with stage IIIb GBC. A systematic search of available evidence in the databases Clinical Evidence, National Health Service, Health Technology Assessment, Tripdatabase, Cochrane Library and PubMed search was performed. Evidence summary documents (overviews, GRADE tables, Clinical Guidelines/CG), secondary articles (systematic reviews) and primary articles (Clinical trials/CT) and observational studies/OS) were searched. Subsequently, evidence was classified as proposed by EMBC 2009. A total of 420 related documents were found: 25 overviews, 15 GRADE tables, 30 CG, 37 SR, 99 CT and 214 OS. In reviewing at length all documents; It was verified that only 17 were related to results of surgical treatment of GC that stage III was mentioned and 5 refer to this (3 OS, 1 CG and a recommendation from NCI), but none of them to the IIIb stage. There are few related studies, most of them are retrospective, with a small number of patients included, heterogeneous population and surgical procedures; thereby, it is difficult to draw conclusions and make recommendations based on the evidence.
