Thermoradiotherapy for persistent cancer in previously irradiated fields.

Area of Science:

• Oncology
• Medical Physics
• Radiation Oncology

Background:

• Conventional radiotherapy is a standard cancer treatment.
• Some cancers persist or recur even after radiotherapy.
• Newer therapeutic approaches are needed to improve outcomes.

Purpose of the Study:

• To evaluate the efficacy of combining radiation therapy with localized radiofrequency hyperthermia.
• To assess the impact of this combined treatment on persistent or recurrent cancers.

Main Methods:

• 42 patients with persistent or recurrent cancers after radiotherapy were selected.
• These patients received additional limited radiation therapy combined with hyperthermia.
• Tumor response was assessed after treatment.

Main Results:

• 10 complete responses and 13 partial responses were observed.
• 18 patients showed minor regression, stabilization, or progression.
• Five tumors became operable, with four undergoing surgical resection.

Conclusions:

• The combination of radiation therapy and hyperthermia shows a potentiating effect.
• Hyperthermia can enhance the effectiveness of radiation therapy in managing persistent or recurrent cancers.