Is there a role for transrectal microwave hyperthermia of the prostate in the treatment of abacterial prostatitis and prostatodynia?

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Abstract
Transrectal microwave hyperthermia of the prostate was administered to 54 patients with chronic abacterial prostatitis or prostatodynia, who failed to respond to several courses of conventional therapies. Hyperthermia was delivered in 60‐min long sessions with three randomly chosen regimens (1 session / week for 4 weeks; 1 session / week for 6 weeks; 2 sessions / week for 3 weeks). A prostatic temperature of 42.5 ± 0.5°C was maintained throughout the entire duration of each session. Patients were assessed pre‐ and postopera‐tively by scoring of subjective symptoms, uroflowmetry with flow nomograms, determination of residual urine volume, and transrectal ultrasonography of the prostate. At the long‐term follow‐up, the subjective symptom score was significantly improved in all patients. Fifty percent of the patients also reported an improvement of life quality, 47. reported their condition unchanged, and 3% reported deterioration, despite therapy. Urodynamic parameters improved but did not reach statistical significance. No major complications were encountered. Our preliminary data indicate that transrectal microwave hyperthermia of the prostate is a safe therapy that can be beneficial as a second line treatment in selected patients with recurring symptoms of abacterial prostatitis or prostatodynia, which do not respond to medical therapy. © 1993 Wilcy‐Liss. Inc.