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[Ionising rays and laryngeal carcinomas (author's transl)]
Summary
Radiation therapy for laryngeal cancer survivors can lead to secondary cancers in the irradiated area. This risk is significant, especially in younger patients with longer life expectancies, influencing treatment decisions.
Area of Science:
- Oncology
- Radiation Oncology
- Head and Neck Surgery
Context:
- Review of literature on secondary cancers following irradiation for benign neck lesions.
- Increasing importance of secondary carcinoma risk from therapeutic irradiation.
- Historical context of irradiating benign lesions versus current practices.
Purpose:
- To report on the incidence of secondary primary laryngeal cancers in patients previously treated with radiation.
- To analyze the occurrence of new primary cancers in the irradiated field among long-term survivors of laryngeal carcinoma.
- To evaluate the long-term risks associated with radiation therapy for laryngeal cancer.
Summary:
- A study of 109 patients with laryngeal carcinoma treated with radiation and surviving disease-free for at least 5 years was conducted.
- Eight of these patients (approximately 7.3%) developed a second primary cancer in the previously irradiated neck region between 7 and 15 years post-treatment.
- The incidence of these second primary cancers is considered significant given the typical age and life expectancy of laryngeal cancer patients.
Impact:
- Highlights the long-term risk of secondary malignancies after radiation therapy for laryngeal cancer.
- Suggests that radiation therapy may not be the optimal choice for younger patients with laryngeal cancer due to life expectancy.
- Informs clinical decision-making regarding the balance between surgical and radiation therapy for laryngeal cancer, particularly in younger demographics.