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Thermal and Nonthermal Effects of Radiofrequency on Living State and Applications as an Adjuvant with Radiation Therapy

Abstract

One of the most frequently applied bioelectromagnetic effects is the deep heating of living species with electromotive force energy. Despite its long history, hyperthermia is a rarely applied oncotherapy because of controversial results and complicated control. The challenge in clinical studies of oncological hyperthermia is the disharmony of the local response and local control with overall survival. Both whole‑body (complete isothermia for the body) and local (isothermia for the chosen target) heating show excellent local effects; however, this is not followed with the expected elongation of survival time. A possible solution could be nonisothermal heating to the heterogeneity of the malignancy itself. The distinguishing parameters to select the target are the electromagnetic properties of the malignant tissue together with the physiological differences between malignant cells and their healthy counterparts. Selection could allow for cellular targeting, generating
natural reactions, such as programmed cell death (apoptosis) followed by immunogenic cell death involving extended immune reactions. This complex method is a new kind of hyperthermia, named modulated electrohyperthermia (tradename oncothermia). The selective, nonequilibrium energy absorption is well synergized with modern radiation therapies, presenting a solution of an active and controllable tumor‑specific immune reaction and subsequent abscopal effects.

Year
2019
Author
Andras Szasz
Indication
Non-oncology
Publication type
Evidence