title: Prostate-Specific Antigen (PSA) and Prostate Volume: Better Predictor of Prostate Cancer for Bosnian and Herzegovina Men.
abstract: BACKGROUND
  The serum prostate specific antigen for the early detection and screening for prostate cancer are very common used among physicians as the best screening tool for prostate cancer. The result of prostate specific antigen levels discriminates whether or not a prostate biopsy should be performed. The lack of specificity is a limitation of PSA as tumor marker, increased PSA concentrations are found not only in patients with prostate cancer but also in patients with benign prostatic disease. The object of this study was to improve the specificity and sensitivity of prostatic cancer detection. We evaluated total PSA levels, free PSA levels and the prostate volume in asymptomatic patients which came for routine check without medical history of prostate cancer.
  
  
  METHODS
  We received medical record of 90 patients between 50-60 years. Total and free PSA in serum was measured with the analyzer Architeckt i2000 SR. Prostate volume was determined by transrectal ultrasound.
  
  
  RESULTS
  The ratio of total and free PSA levels to prostate volume was significantly (p < 0.001) between all three groups. It was observed that increased prostate volume correlates with increased level of total and free PSA in serum.
  
  
  CONCLUSIONS
  Early studies have demonstrated the advantage of measuring prostate volume with PSA total and free levels in serum as a useful tool for early diagnosis of prostate cancer. Data from this study on 90 patients with total PSA in the range from 0,22-7,0 ng/ml confirmed the well known correlation. All three parameters total PSA, free PSA and prostate volume showed significant correlation and a useful tool in prediction of prostate cancer for Bosnia and Herzegovina men.
authors.affiliation: Department of Clinical chemistry, Clinical Center University of Sarajevo, Bosnia and Herzegovina.
authors.forename: Jozo
authors.initials: J
authors.lastname: Coric
authors.affiliation: Department of Clinical chemistry, Clinical Center University of Sarajevo, Bosnia and Herzegovina.
authors.forename: Jasminka
authors.initials: J
authors.lastname: Mujic
authors.affiliation: International University of Sarajevo, Department of Genetics and Bioengineering.
authors.forename: Elma
authors.initials: E
authors.lastname: Kucukalic
authors.affiliation: International University of Sarajevo, Department of Genetics and Bioengineering.
authors.forename: Daria
authors.initials: D
authors.lastname: Ler
keywords: Bosnia and Herzegovina; PSA free; PSA total; prostate volume; tumor marker