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Cosmetic Outcome and Chronic Breast Toxicity After Intraoperative Radiation Therapy (IORT) as a Single Modality or as a Boost Using the Intrabeam® Device: A Prospective Study

  • Breast Oncology
  • Published:
Annals of Surgical Oncology Aims and scope Submit manuscript

Abstract

Purpose

We aim to report our results in terms of chronic toxicities and cosmetic outcomes after intraoperative radiotherapy (IORT) using kV X-rays in women treated for early breast cancer at our institution.

Methods

Patients with early breast carcinoma were recruited between April 2011 and November 2014. After breast-conserving surgery, patients were treated with IORT using the Intrabeam® device. IORT was completed by whole-breast radiotherapy (WBRT) at a dose of 46–50.4 Gy in 23–28 fractions in case of adverse pathologic criteria on the final specimen examination. Skin toxicity was graded using the Late Effects in Normal Tissues—Subjective, Objective, Management and Analytic (LENT-SOMA) scale every 6 months, and cosmetic outcomes were evaluated at 36 months by patient self-evaluation and by two radiation oncologists, on a 1–10 scale.

Results

Forty-one women received IORT only and 30 patients received IORT followed by WBRT (IORT + WBRT group). After a median follow-up of 38.9 months, no locoregional or distant recurrence occurred. After IORT only, 2.4% of grade 2 or higher breast fibrosis, and no other grade 2 or higher disease, was observed. In the IORT + WBRT group, grade 2 or higher fibrosis and grade 2 or higher breast retraction were observed in 43.3 and 23.3% of patients, respectively. Objective cosmetic outcomes were very good and significantly better in the IORT-only group compared with the IORT + WBRT group (8.87 vs. 6.96) (p < 0.001).

Conclusion

IORT using the Intrabeam® is well-tolerated, with very little chronic toxicity and good cosmetic outcome. However, a high rate of grade 2 or higher chronic breast toxicity was observed when IORT had to be completed by WBRT.

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Disclosures

Stéphane Key, Petra Miglierini, Pierre-François Dupré, Sandrine Guilbert, Anne-Sophie Lucia, Ronan Abgral, Virginie Conan-Charlet, Arnaud Uguen, Olivier Pradier, and Ulrike Schick have no conflicts of interest to declare.

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Authors and Affiliations

  1. Radiation Oncology Department, University Hospital, Brest, France

    Stéphane Key MD, Petra Miglierini MD, Anne-Sophie Lucia MD, Olivier Pradier MD, PhD & Ulrike Schick MD, PhD

  2. Gynecological Oncology Unit, University Hospital, Brest, France

    Pierre-François Dupré MD & Sandrine Guilbert MD

  3. Department of Nuclear Medicine, University Hospital, Brest, France

    Ronan Abgral MD, PhD

  4. Pathology Department, University Hospital, Brest, France

    Virginie Conan-Charlet MD & Arnaud Uguen MD, PhD

Authors
  1. Stéphane Key MD
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  2. Petra Miglierini MD
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  3. Pierre-François Dupré MD
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  4. Sandrine Guilbert MD
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  5. Anne-Sophie Lucia MD
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  6. Ronan Abgral MD, PhD
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  7. Virginie Conan-Charlet MD
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  8. Arnaud Uguen MD, PhD
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Correspondence to Stéphane Key MD.

Appendix

Appendix

See Table 4.

Table 4 Comparison between the LENT/SOMA and modified LENT/SOMA scale for the classification of late effects
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Key, S., Miglierini, P., Dupré, PF. et al. Cosmetic Outcome and Chronic Breast Toxicity After Intraoperative Radiation Therapy (IORT) as a Single Modality or as a Boost Using the Intrabeam® Device: A Prospective Study. Ann Surg Oncol 24, 2547–2555 (2017). https://doi.org/10.1245/s10434-017-5920-5

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  • DOI: https://doi.org/10.1245/s10434-017-5920-5

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