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Interstitial hyperthermia of brain tumors by stereotactically implanted heating system
1Department of Neurosurgery, Nagoya University, Japan.
Stereotactic and Functional Neurosurgery
|January 1, 1990
Summary
Interstitial hyperthermia using implanted low Curie temperature metal devices offers a safe treatment for brain tumors. This method achieved significant tumor remission rates when used alone or with radiation therapy.
Area of Science:
- Oncology
- Medical Physics
- Neurosurgery
Background:
- Brain tumors pose significant treatment challenges.
- Interstitial hyperthermia is an emerging therapeutic modality.
- Existing methods require precise targeting and controlled heating.
Purpose of the Study:
- To evaluate the safety and efficacy of stereotactically implanted low Curie temperature metal devices for interstitial hyperthermia in brain tumors.
- To assess treatment response in patients with brain tumors receiving this novel hyperthermia approach.
Main Methods:
- Stereotactic implantation of a low Curie temperature metal device directly into brain tumors.
- Induction heating of the implant via eddy currents generated in an external magnetic field.
- Administration of interstitial hyperthermia, alone or combined with radiation therapy, to 25 brain tumor patients.
Main Results:
- The system demonstrated safe, repeatable, and long-term treatment delivery in 25 cases.
- Out of 22 evaluable cases, 10 showed a positive response to hyperthermia.
- Response included 3 complete remissions, 5 partial remissions, and 2 minor responses, confirmed by pathological examination.
Conclusions:
- Stereotactic interstitial hyperthermia with implanted low Curie temperature metal devices is a safe and feasible treatment for brain tumors.
- The modality shows promising efficacy, achieving significant remission rates in a subset of patients.
- Further investigation into optimizing this technique for broader clinical application is warranted.