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Histopathological observations in the canine prostate treated by local microwave hyperthermia
Author(s) -
Leib Z.,
Rothem A.,
Lev A.,
Servadio C.
Publication year - 1986
Publication title -
the prostate
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.295
H-Index - 123
eISSN - 1097-0045
pISSN - 0270-4137
DOI - 10.1002/pros.2990080112
Subject(s) - prostate , hyperthermia , medicine , infiltration (hvac) , microwave heating , pathology , urology , microwave , materials science , physics , cancer , quantum mechanics , composite material
A large series of repeated experiments were performed applying localized microwave hyperthermia to the prostate in dogs using a new water‐cooled skirt‐type antenna [1], operating at 915 MHz, as part of a new hyperthermia apparatus being developed for the treatment of the prostate in humans. The prostate gland of 20 male dogs was heated repeatedly under general anesthesia, at temperatures between 40°C and 47°C, and for different lengths of time up to 10 h. The prostate and other tissues were evaluated histopathologically following treatments. Invariably, all treatments by hyperthermia of the prostate caused a mononuclear inflammatory infiltration in the interstitium and polymorphonuclear inflitration in the glandular elements. Permanent tissue damage was found to be time‐and temperature‐dependent. Heating at 42.5°C (± 0.5°5C) for up to 1.5 h was found to be harmless and could be safely repeated with our equipment. This study was part of a preclinical evaluation of a new antenna and apparatus.