Radiotherapy in early ovarian cancer

Gynecologic Oncology
G M Thomas

Abstract

Radiation therapy is an effective curative treatment modality in early ovarian cancer. A combination of the independent prognostic factors of grade, stage, and residual disease defines an "intermediate" risk group whose probability of long-term disease-free survival from abdomino-pelvic radiation therapy (APRT) is between 62 and 91%. This group in which abdomino-pelvic radiotherapy is recommended as the sole postoperative treatment is mainly constituted from patients with Stage II disease of all grades with no residuum or less than 2 cm residuum in the pelvis and selected optimal Stage III patients with low grade tumors. No therapy has been shown to benefit patients with Stage I grade 2 or 3 tumors, although relapse risks of 30% justify postoperative treatment in this group. APRT significantly reduced relapse risk in patients with Stages I and II disease, where tumors were densely adherent. The late toxicity of APRT is acceptable. When the abdominal dose is restricted to a total of 25 Gy and the pelvic dose to 45 Gy serious complications occur in less than 4% of patients. 32P, widely utilized in early-stage disease, has not been shown to be beneficial compared to cisplatin in a study of the Norwegian Radium Hospital. Its dosime...Continue Reading

Citations

Dec 21, 2011·Technology in Cancer Research & Treatment·J ChoeC A Kunos

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Combined Modality Therapy
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