Related Experiment Video For Biopsy
Updated: Feb 9, 2026

Optimization of Breast Biopsy and Mastectomy Sample Collection Procedures for Biobanking, Personalized Medicine, and Research Applications
Published on: September 2, 2025
The Payer and Patient Cost Burden of Open Breast Conserving Procedures Following Percutaneous Breast Biopsy
Chloe C Kimball1, Christine I Nichols1, Joshua G Vose1
1Medtronic, Medical Affairs, Portsmouth, NH, USA.
Objectives:
Percutaneous core-needle biopsy (PCNB) is the standard of care to biopsy and diagnose suspicious breast lesions. Dependent on histology, many patients require additional open procedures for definitive diagnosis and excision. This study estimated the payer and patient out-of-pocket (OOP) costs, and complication risk, among those requiring at least 1 open procedure following PCNB.
Methods:
This retrospective study used the Truven Commercial database (2009-2014). Women who underwent PCNB, with continuous insurance, and no history of cancer, chemotherapy, radiation, or breast surgery in the prior year were included. Open procedures were defined as open biopsy or lumpectomy. Study follow-up ended at chemotherapy, radiation, mastectomy, or 90 days-whichever occurred first.
Results:
In total, 143 771 patients (mean age 48) met selection criteria; 85.1% underwent isolated PCNB, 12.4% one open procedure, and 2.5% re-excision. Incidence of complications was significantly lower among those with PCNB alone (9.2%) vs 1 open procedure (15.6%) or re-excision (25.3%, P < .001). Mean incremental commercial payments were US $13 190 greater among patients with 1 open procedure vs PCNB alone (US $17 125 vs US $3935, P < .001), and US $4767 greater with re-excision (US $21 892) relative to 1 procedure. Mean patient OOP cost was US $858 greater for 1 open procedure vs PCNB alone (US $1527 vs US $669), and US $247 greater for re-excision vs 1 procedure.
Conclusions:
A meaningful proportion of patients underwent open procedure(s) following PCNB which was associated with increased complication risk and costs to both the payer and the patient. These results suggest a need for technologies to reduce the proportion of cases requiring open surgery and, in some cases, re-excision.
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