PMID: 7515535Jan 1, 1994Paper

The mechanism of the action of local transrectal hyperthermia in treating prostatic adenoma

Urologii︠a︡ i nefrologii︠a︡
E B MazoG G Krivoborodov

Abstract

Local transrectal hyperthermia (LTH) was used to treat 139 patients with prostatic adenoma aged 54-86 if they did not demand urgent surgery. LTH mechanism of action was studied by blood rheology, immunity characteristics, prostatic tissue gentamycin concentrations, morphological alterations after hyperthermia followed by TUR and adenomectomy. Clinical evaluation covered dysuria dynamics, uroflowmetry values, quantitation of residual urine and measurement of the prostate. The patients combined adenoma with chronic prostatitis, acute urine retention, cystostomy fistula (43, 22 and 16 patients, respectively). A microwave electromagnetic hyperthermia unit "Yakhta-4M" made in Russia (434 MHz, 200 W) heated the prostate to 43-44 degrees C. Two procedures a week of 60 min duration were performed within 3-5 weeks. LTH results in reduced blood viscosity, has no effect on blood coagulation, enhances neutrophil phagocytic function inhibiting their metabolic activity without affecting humoral immunity, raises 2-fold gentamycin concentrations in the prostatic tissue compared to blood and urine levels. Histologically, LTH does not alter prostatic parenchyma, but induces structural shifts in the muscular and connective tissue of the stroma pr...Continue Reading

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