Therapeutic Effects of 8 MHz-radiofrequency-Induced Hyperthermia on Prostatic Hypertrophy.

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  • 前立腺肥大症に対する8MHz-RF波によるハイパーサーミアの治療効果

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The effectiveness of regional capacitive hyperthermia was investigated in 10 patients with benign prostate hyperplasia using Thermotron RF-8. All the subjects previously been treated with drugs such as cernitin pollen extract, chlor-madinone acetate or a-blockers for more than 6 months and various complications such as neurogenic bladder, prostatitis and neuralgia were observed in 6 patients. Treatment was in the outpatient clinic and without anesthesia. The lower pelvic area was heated 1 -2 times a week for a total of 2-10 treatments. Each treatment lasted about 60 min. during which period the rectal temperature could be raised to higher than 42°C for 20 - 40 min. in all patients except one. The therapeutic effects were as follows : prostate size was reduced in 6 out of 10 cases and significant improvement in urination was observed in 9 patients as judged by subjective symptoms and uroflowmetry. No serious adverse effects were observed, although hardened subcutaneous fatty layers were noticed in 2 cases and hematospermia in 1 case. Capacitive hyperthermia may thus be useful for treating outpatients with prostatic hypertrophy.

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