The Society of Surgical Oncology, inc.
The American Society of Breast Surgeons.
Annals of Surgical Oncology

Log in | Register

Factors Associated with Reoperation in Breast-Conserving Surgery for Cancer: A Prospective Study of American Society of Breast Surgeon Members

Jeffrey Landercasper MD, FACS, Andrew J. Borgert PhD, Oluwadamilola M. Fayanju MD, MA, MPHS, Hiram Cody III MD, Sheldon Feldman MD, Caprice Greenberg MD, MPH, FACS, Jared Linebarger MD, Barbara Pockaj MD, Lee Wilke MD, FACS
Breast Oncology
Volume 26, Issue 10 / October , 2019



More than 20% of patients undergoing initial breast-conserving surgery (BCS) for cancer require reoperation. To address this concern, the American Society of Breast Surgeons (ASBrS) endorsed 10 processes of care (tools) in 2015 to be considered by surgeons to de-escalate reoperations. In a planned follow-up, we sought to determine which tools were associated with fewer reoperations.


A cohort of ASBrS member surgeons prospectively entered data into the ASBrS Mastery® registry on consecutive patients undergoing BCS in 2017. The association between tools and reoperations was estimated via multivariate and hierarchical ranking analyses.


Seventy-one surgeons reported reoperations in 486 (12.3%) of 3954 cases (mean 12.7% [standard deviation (SD) 7.7%], median 11.5% [range 0–32%]). There was an eightfold difference between surgeons in the 10th and 90th percentile performance groups. Actionable factors associated with fewer reoperations included routine planned cavity side-wall shaves, surgeon use of ultrasound (US), neoadjuvant chemotherapy, intra-operative pathologic margin assessment, and use of a pre-operative diagnostic imaging modality beyond conventional 2D mammography. For patients with invasive cancer, ≥ 24% of those who underwent reexcision did so for reported margins of < 1 or 2 mm, representing noncompliance with the SSO-ASTRO margin guideline.


Although ASBrS member surgeons had some of the lowest rates of reoperation reported in any registry, significant intersurgeon variability persisted. Further efforts to lower rates are therefore warranted. Opportunities to do so were identified by adopting those processes of care, including improved compliance with the SSO-ASTRO margin guideline, which were associated with fewer reoperations.

Add a comment

0 comment(s)



Join the conversation!

Follow the journal on Twitter and Facebook

Help to expand the reach of the journal to support the research and practice needs of surgical oncologists and their patients.