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Reference range of prostate-specific antigen after transurethral resection of the prostate
1Department of Urology, Göteborg University, Ostra Hospital, Sweden.
Objectives:
The aim of the present study was to investigate how transurethral resection of the prostate (TURP) affected the serum levels of prostate-specific antigen (PSA) and to establish reference ranges of PSA in patients who have undergone TURP.
Methods:
PSA was determined preoperatively and 3 months postoperatively in 190 patients who underwent TURP because of benign prostatic hyperplasia (BPH).
Results:
Mean PSA levels were reduced by 70%, from 6.0 to 1.9 ng/mL. Prostate volume was reduced by 58% from 63.3 to 26.5 cc, which is close to the reported normal volume in men without BPH. Ninety percent of the patients had a postoperative PSA value of less than 4 ng/mL and 98% less than 10 ng/mL.
Conclusions:
After a complete TURP with a benign histopathologic specimen, PSA should be expected to be within the normal reference range, that is, less than 4 ng/mL.