Associação entre peso prostático e score de Gleason em pacientes portadores de câncer de próstata submetidos a prostatectomia radical

Abstract

Introduction: Prostate cancer is one of he most frequent cancer types among men around the world and its global incidence has dramatically arrised on last decade. The prognostic factors already known are: Seric Prostatic Specific Antigen (PSA), Gleason Score and Clinical Stage. The prostate gland volume may be associated with these factors. Objecives: Evaluate a possible association between protate gland volume and the presence of high Gleason Score (7 or higher) on individuals with prostate cancer. Methods: We analyzed data from 139 files of patients who underwent radical prostatectomy for prostate cancer between march 2009 and november 2012. Prostate weight measured at prostatectomy was compared to other clinical variables (age, prostate specific antigen, PSA density) and pathological outcomes (final Gleason score, pathological stage). Patients were divided in 3 groups due to its prostate size (under 50grams, between 50-80grams and over 80grams). Multivariate logistic regression was used to assess prostate size as a predictor of high grade prostate cancer. RESULTS: The study population included 139 patients during march 2009 to november 2012, of whom 64 (46,04%) had Gleason Score 7 or higher. No association between low prostate weight and hight grade gleason score was found. This event were more frequent on intermediate group (prostate weight between 50 and 80 grams). We also did not find any association between prostate weight and any of the others paramters analysed between the 3 groups. Conclusions: No association between prostate size and hight grade Gleason score was found. Association between prostate size and any of the others paramters analysed between the 3 groups was not found either.