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Underutilization of Needle Biopsy Before Breast Surgery: A Measure of Low-Value Care

  • Health Services Research and Global Oncology
  • Published:
Annals of Surgical Oncology Aims and scope Submit manuscript

Abstract

Background

Breast core needle biopsy (CNB) can obviate the need for breast surgery in patients with an unknown breast lesion; however, variation in compliance with this guideline may represent a disparity in health care and a surrogate measure of unnecessary surgery. We evaluated variation in breast CNB rates prior to initial breast cancer surgery.

Methods

We performed a retrospective analysis using Medicare claims from 2015 to 2017 to evaluate the proportion of patients who received a CNB within 6 months prior to initial breast cancer surgery. Outlier practice pattern was defined as a preoperative CNB rate ≤ 70%. Logistic regression was used to evaluate surgeon characteristics associated with outlier practice pattern.

Results

We identified 108,935 female patients who underwent initial breast cancer surgery performed by 3229 surgeons from July 2015 to June 2017. The mean CNB rate was 86.7%. A total of 7.7% of surgeons had a CNB performed prior to initial breast surgery ≤ 70% of the time, and 2.0% had a CNB performed ≤ 50% of the time. Outlier breast surgeons were associated with practicing in a micropolitan area (odds ratio [OR] 1.88, 95% confidence interval [CI] 1.29–2.73), in the South (OR 1.84, 95% CI 1.20–2.84) or West region (OR 1.78, 95% CI 1.11–2.86), > 20 years in practice (OR 1.52, 95% CI 1.09–2.11), and low breast cancer surgery volume (< 30 cases in the study period; OR 4.03, 95% CI 2.75–5.90).

Conclusions

Marked variation exists in whether a breast core biopsy is performed prior to initial breast surgery, which may represent unnecessary surgery on individual patients. Providing surgeon-specific feedback on guideline compliance may reduce unwarranted variation.

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Acknowledgments

None.

Funding

Funding for this work was provided by the Division of Surgical Oncology, Department of Surgery, Johns Hopkins University School of Medicine, Baltimore, MD, USA, and the Robert Wood Johnson Foundation at Johns Hopkins University.

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Authors and Affiliations

Authors

Contributions

Study conception and design: RCG, KK, MAM, DME. Acquisition of data: PW, SH, KK. Analysis and interpretation of data: PW, SH, RCG, MAM, DME. Drafting of the manuscript: RCG, PW. Critical revision: MAM, DME, LKJ, MH, JL, MC.

Corresponding author

Correspondence to Martin A. Makary MD, MPH, FACS.

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The authors declare that they have no conflicts of interest to disclose.

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Gilmore, R.C., Wang, P., Kaczmarski, K. et al. Underutilization of Needle Biopsy Before Breast Surgery: A Measure of Low-Value Care. Ann Surg Oncol 28, 2485–2492 (2021). https://doi.org/10.1245/s10434-020-09340-6

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  • DOI: https://doi.org/10.1245/s10434-020-09340-6

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