Re-excision rates after breast conserving surgery following the 2014 SSO-ASTRO guidelines

Alicia A. Heelan Gladden, Sharon Sams, Ana Gleisner, Christina Finlayson, Nicole Kounalakis, Patrick Hosokawa, Regina Brown, Tae Chong, David Mathes, Colleen Murphy

Research output: Contribution to journalArticlepeer-review

26 Scopus citations


Background In 2014, SSO-ASTRO published guidelines which recommended “no ink on tumor” as adequate margins for patients undergoing breast conservation for invasive breast cancer. In 2016, new SSO-ASTRO-ASCO guidelines recommended 2 mm margins for DCIS. We evaluated whether these guidelines affected re-excision rates at our institution. Methods Patients treated with breast conservation surgery from January 1, 2010–March 1, 2016 were identified. Re-excision rates, tumor characteristics, and presence of residual disease were recorded. The 2016 guidelines were retrospectively applied to the same cohort and expected re-excision rates calculated. Results Re-excision rates did not significantly decline before and after 2014 guideline adoption (11.9% before, 10.9% after; p = 0.65) or when the 2016 guidelines were retrospectively applied (8.4%; p = 0.10). Conclusions The 2014 and 2016 guidelines had minimal impact on our re-excision rates, as most re-excisions were done for DCIS and 2016 guidelines supported our prior institutional practices of 2 mm margins for these patients.

Original languageEnglish (US)
Pages (from-to)1104-1109
Number of pages6
JournalAmerican journal of surgery
Issue number6
StatePublished - Dec 2017

ASJC Scopus subject areas

  • Surgery


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