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Sample records for iort iort iort

  1. Long-Term Outcomes With Intraoperative Radiotherapy as a Component of Treatment for Locally Advanced or Recurrent Uterine Sarcoma

    SciTech Connect (OSTI)

    Barney, Brandon M., E-mail: [Department of Radiation Oncology, Mayo Clinic, Rochester, Minnesota (United States); Petersen, Ivy A. [Department of Radiation Oncology, Mayo Clinic, Rochester, Minnesota (United States); Dowdy, Sean C.; Bakkum-Gamez, Jamie N. [Division of Gynecologic Surgery, Mayo Clinic, Rochester, Minnesota (United States); Haddock, Michael G. [Department of Radiation Oncology, Mayo Clinic, Rochester, Minnesota (United States)


    Purpose: To report our institutional experience with intraoperative radiotherapy (IORT) as a component of treatment for women with locally advanced or recurrent uterine sarcoma. Methods and Materials: From 1990 to 2010, 16 women with primary (n = 3) or locoregionally recurrent (n = 13) uterine sarcoma received IORT as a component of combined modality treatment. Tumor histology studies found leiomyosarcoma (n = 9), endometrial stromal sarcoma (n = 4), and carcinosarcoma (n = 3). Surgery consisted of gross total resection in 2 patients, subtotal resection in 6 patients, and resection with close surgical margins in 8 patients. The median IORT dose was 12.5 Gy (range, 10-20 Gy). All patients received perioperative external beam radiotherapy (EBRT; median dose, 50.4 Gy; range, 20-62.5 Gy), and 6 patients also received perioperative systemic therapy. Results: Seven of the 16 patients are alive at a median follow-up of 44 months (range, 11-203 months). The 3-year Kaplan-Meier estimate of local relapse (within the EBRT field) was 7%, and central control (within the IORT field) was 100%. No local failures occurred in any of the 6 patients who underwent subtotal resection. The 3-year freedom from distant relapse was 48%, with failures occurring most frequently in the lungs or mediastinum. Median survival was 18 months, and 3-year Kaplan-Meier estimates of cause-specific and overall survival were 58% and 53%, respectively. Three patients (19%) experienced late Grade 3 toxicity. Conclusions: A combined modality approach with perioperative EBRT, surgery, and IORT for locally advanced or recurrent uterine sarcoma resulted in excellent local disease control with acceptable toxicity, even in patients with positive resection margins. With this approach, some patients were able to experience long-term freedom from recurrence.

  2. The Texas gubernatorial elections of 1857 and 1859

    E-Print Network [OSTI]

    Giesenschlag, William Henry


    Historical Quarterly. XVIII (July, 1914), p. 43. County, Port Gates in present Coryell Ccunty, Fort Graham in Hi7. 1 County, and I'ort Vorth in Tarraot County. The posts not only provided some protection for the vhite settlers, but also helped to quicken... far to the west, extending from forts Duncan and Clark on the Rio Graride to Fort Belknap in present Young County, and including forts Hason in Nason County, 11cKavett in future 11enard County, Chadbourne in present Coke County, arid Phantom Hi7 1...