Influence of Digital Examination, Cystoscopy, Transrectal Ultrasonography and Needle Biopsy on the Concentration of Prostate-Specific Antigen
- 1 January 1994
- journal article
- clinical trial
- Published by S. Karger AG in Urologia Internationalis
- Vol. 53 (4) , 186-190
- https://doi.org/10.1159/000282670
Abstract
The influence of various prostatic manipulations, including digital rectal examination, cystoscopy, transrectal ultrasonography and transrectal needle biopsy, on the serum prostatic-specific antigen (PSA) levels in 170 men, were examined. We found that digital rectal examination, cystoscopy and transrectal ultrasonography had no significant effect on PSA levels, except for transrectal needle biopsy, which caused an immediate increase of serum PSA in 96.2% of the patients lasting more than 2 weeks in 42.3% of the cases. In conclusion, serum PSA determination after digital rectal examination, after cystoscopy and after transrectal ultrasonography is accurate and reliable. On the other hand, we must wait about 6 weeks after needle biopsy before measuring PSA in the serum of patients with prostatic diseases.Keywords
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