Comparision of Prostate-specific Antigen Reduction after Performing Transurethral Resection of the Prostate according to a Preoperative Prostate-specific Antigen Value of 4 ng/ml / 대한남성과학회지

ABSTRACT

PURPOSE: We compared prostate-specific antigen (PSA) reduction after performing transurethral resection of the prostate (TURP) according to a preoperative PSA value of 4 ng/ml and analyzed the meaning of elevation of the preoperative PSA value over 4 ng/ml. MATERIALS AND METHODS: We investigated the PSA level and prostate volume by transrectal ultrasonography (TRUS), urine flow rate, residual urine volume, and international prostate symptom score (IPSS) preoperatively and at 1 year after performing TURP in 61 clinically diagnosed BPH patients who had lower urinary tract symptoms (LUTS). We enrolled the 61 patients into 2 groups according to their preoperative PSA level relative to 4 ng/ml and compared the PSA reduction ratio (postoperative PSA level/preoperative PSA level), prostate volume reduction ratio, preoperative prostate volume, resected prostate volume, preoperative residual urine volume, preoperative maximal flow rate, and IPSS in each group. RESULTS: In the preoperative PSA group > or =4 ng/ml, the PSA reduction ratio was significantly lower than the PSA group or =4 ng/ml, who are expected to have more severe bladder outlet obstruction (BOO).