Radiotherapy in women with epithelial ovarian cancer: historical role, current advances, and indications.

Chinese Clinical Oncology
Christian Haydeé Flores-Balcázar, Dulce María Urías-Arce

Abstract

Epithelial ovarian cancer (OC) is known to be a neoplasm responsive to radiotherapy (RT). Nevertheless, the role of RT in the management of this disease represent a topic of controversy, and the indications for its use are not fully established. Initial studies suggested that the addition of RT in the form of intraperitoneal (IP) radioisotopes was useful. Indications for this treatment were peritoneal cytology with tumor cells, peritoneal implants, and capsule rupture. The instillation of radioisotopes was contraindicated when macroscopic residual disease was present. Pelvic RT was used after surgery in patients with an absence of gross residual disease. Early studies established the inadequacy of this technique and the need for treating the whole abdomen. Whole abdominal irradiation (WAI) was a therapeutic tool used in the prechemotherapy era to eradicate large amounts of microscopic peritoneal disease. Ideal candidates for WAI were stage I patients with grade 2 or 3 tumors; stage II patients with grade 1 or 2 tumors and residual disease, and stage III, grade 1 patients with <2 cm residual disease. The disadvantages of WAI were the dose-limiting toxicities, which were predominantly acute hematologic and late gastrointestinal. ...Continue Reading

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