BACKGROUND The normal prostate-specific antigen (PSA) level in patients with urethral catheterization is a controversy. We designed this study to investigate the effect of nontraumatic urethral catheterization without urinary retention on serum PSA. MATERIALS AND METHODS Seventy patients scheduled for urethral catheterization before elective surgeries were randomly selected and included in th...

OBJECTIVE We examined the efficacy of an artificial neural network analysis (ANNA) based on parameters available from previously existing examinations for improving the predictive accuracy of prostate cancer screening in the Japanese population. METHODS Two hundred and twenty-eight patients with prostate-specific antigen (PSA) of 2-10 ng/ml were enrolled in this study. Two artificial neural n...

Prostate cancer (PCa) is the second most common cancer in men and an estimated 1.1 million men worldwide were diagnosed with prostate cancer in 2012 with almost 70% of the cases occurring in more developed regions [1]. With an estimated 307.00 deaths in 2012, prostate cancer is the fifth leading cause of death from cancer in men [1]. In patients with elevated or rising prostate-specific antigen...

background: prostate specific antigen (psa) is a protein currently used in vconjunction with the digital rectal examination to detect and guide management of prostate cancer. there are several causes of increase in serum psa including urological manipulations, medications, prostatic diseases, prostate cancer, prostate inflammation or infection, etc. some studies had reported cystoscopy to cause...

OBJECTIVES To address health disparities in risk stratification of U.S. Hispanic/Latino men by characterizing influences of prostate weight, body mass index, and race/ethnicity on the correlation of PSA derivatives with Gleason score 6 (Grade Group 1) tumor volume in a diverse cohort. RESULTS Using published PSA density and PSA mass density cutoff values, men with higher body mass indices and...

PURPOSE We investigated the association between National Institute of Health category IV prostatitis and prostate-specific antigen levels in patients with low-risk localized prostate cancer. MATERIALS AND METHODS The data of 440 patients who had undergone prostate biopsies due to high PSA levels and suspicious digital rectal examination findings were reviewed retrospectively. The patients wer...

BACKGROUND Up to sevenfold differences were observed between total prostate-specific antigen (PSA) methods for New York State Proficiency Test samples prepared with seminal fluid PSA in human female serum. Because the PSA was mainly in its free form under these conditions, we wanted to determine whether a defined mixture of free and complexed PSA would reduce the interassay differences. METHO...

Objectives: To determine the whether histological prostatic inflammation correlates with serum prostate specific antigen (PSA), free PSA (fPSA) and percent of fPSA (%fPSA) levels in elderly patients without clinically proven cancer. Methods: A total 115 cancer transrectal biopsy were included this retrospective study. Patients divided two main groups as histologic inflammation. grading was perf...

Abstract Background To find out any association of urethral catheterisation with rise in serum PSA. Methods This study was conducted 80 patients BPH who had to undergo because acute urinary retention. Patients were divided into two groups: Group A (n = 43 patients), age group 40–60 years, and B 47 60–75 years. Values PSA, free/total PSA density recorded both groups before one three days after c...

conclusions using tzpsad as an adjunct to psa may improve the specificity of psa in the diagnosis of pca and decrease the number of unnecessary prostatic biopsies in iranian men with serum psa level < 20 ng/ml. results among 1120 men who were eligible for enrolment, prostate cancer was detected in 265 patients. mean serum psa levels were 9.7 ± 4.3 ng/ml and 8.5 ± 3.7 ng/ml in patients with and ...