[Laboratory monitoring of the aspirate in transurethral drainage of the prostate in patients with chronic obstructive prostatitis].

Specimens obtained by aspiration at transurethral vacuum drainage of the prostate from 166 patients with obstructive prostatitis were studied before and during treatment. This study showed that the obstruction was primarily caused by epithelial and purulent "plugs" of the lobular excretory ducts. Stages of their formation and drainage technique were specified. Aspiration specimens examination was essential for diagnosis of prostatic obstruction degree in chronic prostatitis as well as for decision making on the end of the drainage therapy.