[Nonspecific resistance during preoperative chemoradiation treatment and UHF hyperthermia of osteogenic sarcoma].

The extent of metastatic spread and the life span depend on the level of nonspecific resistance of the body of patients with osteogenic sarcoma. Chemoradiation therapy reduces antitumoral resistance of patients, and the use of local UHF hyperthermia prevents this negative effect of complex treatment.

[Distribution of heat production in the tissues of the lower extremities during capacitative heating by a UHF field].

The authors described methods developed by them for measuring heat production in autopsy sections by taking pulse thermograms during local capacitative healing of tissues using special electrode devices filled in with liquid dielectric. Thermograms of heat production distribution on limb sections were shown. Qualitative peculiarities of heat production distribution determined by tissue topological structure, were analysed.

[Metastasis of Lewis carcinoma during local UHF hyperthermia].

The paper is concerned with the results of a study of the relation of a metastatic spreading of mouse Lewis carcinoma to temperature distribution in the area of a tumor and healthy tissue damage. It was shown that a significant metastatic spreading inhibition was observed in selective MWF-hyperthermia (43-46 degrees C, 30 min). In the absence of a selective hyperthermal exposure when both tumors and healthy tissues were damaged (at the same thermal dose), there was a tendency to metastatic spreading enhancement.