Marcelo Chávez1, Gonzalo Ziegler2, José Cotrina3, José Galarreta3, Miguel de la Cruz3, Raúl Mantilla3. 1. Departamento de mamas, piel y tumores de partes blandas, Hospital Nacional Guillermo Almenara Irigoyen (ES SALUD), Lima, Perú. Electronic address: marcelochavezdiaz@gmail.com. 2. Servicio de Cirugía Oncológica, Clínica Ziegler, Lima, Perú. 3. Departamento de mamas, piel y tumores de partes blandas, Instituto Nacional de Enfermedades Neoplásicas (INEN), Lima, Perú.
Abstract
INTRODUCTION: Soft tissue sarcomas (SFT) are a group of rare and heterogeneous neoplasms (representing less than 1% of cancer in adults and 15% in pediatric patients), for which there is no updated records in the Latin American population. This study aims to describe the current situation of patients treated at a cancer institute in Latin America. METHODS: We obtained records from 250 patients with a diagnosis of SFT, treated at the National Institute of Neoplastic Diseases of Peru (INEN) during the period 2009-2013, with a mean follow-up of 62 months. The following data were recorded: epidemiological, clinical, treatment and follow-up. The analysis of global survival was done with the Cox proportional hazards model. RESULTS: SFT showed a greater frequency in males (60.8%), with a peak incidence after 50 years of age (69.6%). Tumor location was predominantly in the lower extremities (64.4%), and the most frequent histologic subtypes were: undifferentiated pleomorphic sarcoma (34%) and liposarcomas (25.6%); clinical stage iii was the most frequent (30.8%). The 5-year overall survival rate was 63.9%, while the statistical analysis found a significant association between global survival and the variables: age (>50 years), tumor size (>5cm), depth (subfascial), histologic grade (G3), local and distant recurrence, showing shorter survival times in these groups. CONCLUSIONS: This study has clarified the epidemiology, treatment and prognosis, as well as the variables that have an impact on the survival of the Latin American patients with SFT studied. Publicado por Elsevier España, S.L.U.
INTRODUCTION: Soft tissue sarcomas (SFT) are a group of rare and heterogeneous neoplasms (representing less than 1% of cancer in adults and 15% in pediatric patients), for which there is no updated records in the Latin American population. This study aims to describe the current situation of patients treated at a cancer institute in Latin America. METHODS: We obtained records from 250 patients with a diagnosis of SFT, treated at the National Institute of Neoplastic Diseases of Peru (INEN) during the period 2009-2013, with a mean follow-up of 62 months. The following data were recorded: epidemiological, clinical, treatment and follow-up. The analysis of global survival was done with the Cox proportional hazards model. RESULTS: SFT showed a greater frequency in males (60.8%), with a peak incidence after 50 years of age (69.6%). Tumor location was predominantly in the lower extremities (64.4%), and the most frequent histologic subtypes were: undifferentiated pleomorphic sarcoma (34%) and liposarcomas (25.6%); clinical stage iii was the most frequent (30.8%). The 5-year overall survival rate was 63.9%, while the statistical analysis found a significant association between global survival and the variables: age (>50 years), tumor size (>5cm), depth (subfascial), histologic grade (G3), local and distant recurrence, showing shorter survival times in these groups. CONCLUSIONS: This study has clarified the epidemiology, treatment and prognosis, as well as the variables that have an impact on the survival of the Latin American patients with SFT studied. Publicado por Elsevier España, S.L.U.
Entities:
Keywords:
Cirugía; Cirugía oncológica; Latin America; Latinoamérica; Sarcoma de partes blandas; Soft tissue sarcoma; Surgery; Surgical oncology