Intraoperative radiotherapy as a boost during breast-conserving surgery using low-kilovoltage X-rays: the first 5 years of experience with a novel approach
Purpose - Intraoperative radiotherapy (IORT) during breast-conserving surgery (BCS) has been recently introduced using different devices. We report the first 5 years of a single-center experience after introduction of a novel approach to deliver IORT as a tumor bed boost during BCS for breast cancer...
Gespeichert in:
| Hauptverfasser: | , , , , , , |
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| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
1 August 2010
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| In: |
International journal of radiation oncology, biology, physics
Year: 2010, Jahrgang: 77, Heft: 5, Pages: 1309-1314 |
| ISSN: | 1879-355X |
| DOI: | 10.1016/j.ijrobp.2009.06.085 |
| Online-Zugang: | Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1016/j.ijrobp.2009.06.085 Verlag, lizenzpflichtig, Volltext: https://www.sciencedirect.com/science/article/pii/S0360301609027989 
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| Verfasserangaben: | Frederik Wenz, Grit Welzel, Elena Blank, Brigitte Hermann, Volker Steil, Marc Sütterlin, and Uta Kraus-Tiefenbacher |
MARC
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| 245 | 1 | 0 | |a Intraoperative radiotherapy as a boost during breast-conserving surgery using low-kilovoltage X-rays |b the first 5 years of experience with a novel approach |c Frederik Wenz, Grit Welzel, Elena Blank, Brigitte Hermann, Volker Steil, Marc Sütterlin, and Uta Kraus-Tiefenbacher |
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| 520 | |a Purpose - Intraoperative radiotherapy (IORT) during breast-conserving surgery (BCS) has been recently introduced using different devices. We report the first 5 years of a single-center experience after introduction of a novel approach to deliver IORT as a tumor bed boost during BCS for breast cancer. - Methods and Materials - A total of 155 breast cancers in 154 women (median age, 63 years; range, 30-83 years; T1/T2 = 100/55; N0/N+ = 108/47) were treated between February 2002 and December 2007 at the University Medical Center Mannheim, in whom IORT as tumor bed boost was applied using 50-kV X-rays (20 Gy) followed by 46-50 Gy whole-breast external-beam radiotherapy (EBRT). Chemotherapy, if indicated, was given before EBRT. The median interval between BCS plus IORT and EBRT was 40 days. Median follow-up was 34 months (maximum 80 months, 1 patient lost to follow-up). Overall survival and local relapse-free survival were calculated at 5 years using the Kaplan-Meier method. Seventy-nine patients were evaluated at 3-year follow-up for late toxicity according to the Late Effects in Normal Tissues-Subjective, Objective, Management, and Analytic system. - Results - Ten patients died, 2 had in-breast relapse, and 8 developed distant metastases (5-year overall survival = 87.0%; 5-year local relapse-free survival = 98.5%). Grade 3 fibroses of the tumor bed were detected in 5% of the patients after 3 years. Skin toxicity was mild (telangiectases and hyperpigmentations in approximately 6% each). - Conclusions - Intraoperative radiotherapy as a tumor bed boost during BCS for breast cancer using low-kilovoltage X-rays followed by EBRT yields low recurrence and toxicity rates. | ||
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| 650 | 4 | |a Breast cancer | |
| 650 | 4 | |a Intraoperative radiotherapy | |
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