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Diehl, C. ; Pigorsch, S.U. ; Gempt, J.* ; Krieg, S.M.* ; Reitz, S.* ; Waltenberger, M.* ; Barz, M.* ; Meyer, H.S.* ; Wagner, A.* ; Wilkens, J.* ; Wiestler, B.* ; Zimmer, C.* ; Meyer, B.* ; Combs, S.E.

Low-energy X-ray intraoperative radiation therapy (Lex-IORT) for resected brain metastases: A single-institution experience.

Cancers 15:14 (2023)
Verlagsversion Forschungsdaten DOI PMC
Open Access Gold
Creative Commons Lizenzvertrag
BACKGROUND: Resection followed by local radiation therapy (RT) is the standard of care for symptomatic brain metastases. However, the optimal technique, fractionation scheme and dose are still being debated. Lately, low-energy X-ray intraoperative RT (lex-IORT) has been of increasing interest. METHOD: Eighteen consecutive patients undergoing BM resection followed by immediate lex-IORT with 16-30 Gy applied to the spherical applicator were retrospectively analyzed. Demographic, RT-specific, radiographic and clinical data were reviewed to evaluate the effectiveness and safety of IORT for BM. Descriptive statistics and Kaplan-Meyer analysis were applied. RESULTS: The mean follow-up time was 10.8 months (range, 0-39 months). The estimated local control (LC), distant brain control (DBC) and overall survival (OS) at 12 months post IORT were 92.9% (95%-CI 79.3-100%), 71.4% (95%-CI 50.2-92.6%) and 58.0% (95%-CI 34.1-81.9%), respectively. Two patients developed radiation necrosis (11.1%) and wound infection (CTCAE grade III); both had additional adjuvant treatment after IORT. For five patients (27.8%), the time to the start or continuation of systemic treatment was ≤15 days and hence shorter than wound healing and adjuvant RT would have required. CONCLUSION: In accordance with previous series, this study demonstrates the effectiveness and safety of IORT in the management of brain metastases despite the small cohort and the retrospective characteristic of this analysis.
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Publikationstyp Artikel: Journalartikel
Dokumenttyp Wissenschaftlicher Artikel
Korrespondenzautor
Schlagwörter Brain Metastases ; Intraoperative Radiation Therapy ; Neurosurgical Resection; Postoperative Stereotactic Radiosurgery; Surgical Resection; Clinical-outcomes; Local-control; Radiotherapy; Cavity; Epidemiology; Multicenter; Management; Carcinoma
ISSN (print) / ISBN 2072-6694
Zeitschrift Cancers
Quellenangaben Band: 15, Heft: 1, Seiten: , Artikelnummer: 14 Supplement: ,
Verlag MDPI
Verlagsort St Alban-anlage 66, Ch-4052 Basel, Switzerland
Nichtpatentliteratur Publikationen
Begutachtungsstatus Peer reviewed
Institut(e) Institute of Radiation Medicine (IRM)