Brachytherapy in the treatment of head and neck cancer.

Brachytherapy is a therapeutic modality that may provide a significant improvement in the therapeutic ratio when appropriately applied, and hence, is an appealing treatment strategy for the head and neck. For several tumor sites in the head and neck, the use of a brachytherapy implant has been demonstrated to be effective and is optimally provided within a multidisciplinary team setting. This enables meticulous attention to technical and treatment-related factors that have been demonstrated to influence the therapeutic ratio for low-dose-rate implants. Recent technologic advances have enabled the study of promising high-dose-rate and pulsed-dose-rate afterloading brachytherapy techniques, in an attempt to expand the role of brachytherapy in the head and neck. These techniques minimize radiation exposure hazards while offering the physical and biologic advantages of brachytherapy. Issues pertinent to members of the brachytherapy team providing multidisciplinary care of the implanted head and neck patient are discussed.