ArticleWorld journal of surgery2020
Utility of Taking Additional Margins When Performing Breast-Conserving Surgery with Intraoperative Radiation Therapy for Early Breast Cancer.
Article in World journal of surgery, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
1 citing paper in PubMed.
- Feasibility of Intraoperative Radiotherapy Tumor Bed Boost in Patients with Breast Cancer after Neoadjuvant Chemotherapy.Yonsei medical journal · 2024Article
Corrections and comments
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Authors and funding
8 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
introductionIntraoperative radiation therapy (IORT) is an alternative to external beam radiation therapy (EBRT) after lumpectomy, in which radiation is delivered before the final margin analysis. Practices vary regarding excision of close or positive margins pre- and post-IORT. MATERIALS AND
methodsIn a retrospective cohort of women with hormone receptor-positive, clinically node-negative breast cancer undergoing lumpectomy with IORT and selective EBRT at our institution from 2011 to 2015, we compared the impact of pre- and post-IORT margin excisions on in-breast tumor recurrence. Additional pre-IORT margins were taken at surgical team discretion. Re-excisions post-IORT were performed for positive/close margins. We describe rate of invasive or in situ malignancy in additional pre-IORT and post-IORT re-excised specimens and compare IBTR using Chi-squared tests.
resultsThere were 195 cases in 193 women (2 bilateral breast cancer). Pre-IORT, ≥1 additional margin was obtained in 139 (71%). The final margin on the initial lumpectomy was positive in 13 (9%) and ≤2 mm in 72 (52%). Additional pre-IORT margins contained in situ/invasive cancer in 16 (12%). Thirty-one patients (16%) underwent post-IORT re-excision and nine (29%) contained invasive/in situ malignancy. Twenty-three (12%) received EBRT. In 45.6-month mean follow-up, 13 had IBTR (7%) with no difference by additional pre-IORT margin excision (5 vs. 11%, p = 0.150), post-IORT margin re-excision (10 vs. 6%, p = 0.464), or EBRT (0 vs. 8%, p = 0.172). Adjuvant endocrine therapy was associated with lower IBTR (4 vs. 17%, p = 0.003).
conclusionsTaking additional pre-IORT margins and re-excising close/positive margins post-IORT improved margin clearance rates but had an unclear effect on IBTR. Adjuvant endocrine therapy significantly reduced IBTR.
Indexed as
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Registered trials
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