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  • Title: Intraoperative radiation therapy in the treatment of pelvic gynecologic malignancies: a review of fifteen cases.
    Author: del Carmen MG, McIntyre JF, Fuller AF, Nikrui N, Goodman A.
    Journal: Gynecol Oncol; 2000 Dec; 79(3):457-62. PubMed ID: 11104619.
    Abstract:
    OBJECTIVE: The aim of this study was to review the experience with intraoperative radiation therapy (IORT) in the treatment of gynecologic pelvic malignancies at the Massachusetts General Hospital. METHODS: From July 3, 1996, through July 28, 1999, 15 patients were treated with IORT for gynecologic malignancies in a dedicated IORT operating room suite at the Massachusetts General Hospital. Hospital medical records, radiation oncology records, and office charts were reviewed on all patients treated with IORT. IORT was given in the presence of positive surgical margins and where the doses needed for adjuvant postoperative external beam radiotherapy (EBRT) would exceed those tolerated by normal structures. One patient presented with primary disease and 14 with local or regional recurrence. Follow-up time ranged from 3 to 36 months. RESULTS: Treatment in conjunction with IORT included surgery only (7 patients); preoperative EBRT, preoperative brachytherapy, and surgery (1 patient); preoperative chemotherapy and surgery (2 patients); and surgery and postoperative chemotherapy (5 patients). IORT doses ranged from 10 to 22.5 Gy. At the completion of this review, 4 patients (26.6%) have died, 6 (40%) are alive and free of disease, and 5 (33%) are alive with disease persistence or relapse. Of the 10 patients with gross total resection, 5 are alive and free of disease. Of the 5 women with gross residual disease at the time of IORT, only 1 is alive and free of disease. CONCLUSIONS: The volume of residual disease prior to IORT may be an important prognostic indicator for disease relapse. Both local recurrence and distant metastasis were more common among patients with gross residual disease at the time of IORT. Our institutional experience with IORT further supports the importance of optimal surgical resection.
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