Magnetic seed versus guidewire-based breast cancer localization with magnetic lymph node detection: cost-minimization analysis - Summary - MDSpire

Magnetic seed versus guidewire-based breast cancer localization with magnetic lymph node detection: cost-minimization analysis

  • By

  • Eirini Pantiora

  • Filipa Sampaio

  • Allan Jazrawi

  • Fredrik Wärnberg

  • Staffan Eriksson

  • Andreas Karakatsanis

  • December 1, 2025

  • 0 min

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Objective:

To evaluate the cost-effectiveness of magnetic seeds versus guidewires for breast cancer localization in a health economic analysis of a pragmatic randomized controlled trial (RCT).

Key Findings:
  • Unadjusted costs: guidewire €3337 vs. magnetic seed €3274; no significant difference (P = 0.599).
  • Adjusted costs: guidewire €3514 vs. magnetic seed €3123; significant cost reduction of €391 (P = 0.002).
  • Magnetic seed associated with shorter localization and operating times, leading to overall cost containment.
Interpretation:

Despite the higher initial cost of magnetic seeds, their use resulted in lower overall costs due to efficiencies in the surgical process, such as reduced localization and operating times.

Limitations:
  • Study conducted in a single healthcare system, which may limit generalizability and applicability to other settings.
  • Costs may vary in different healthcare settings, potentially affecting the findings.
Conclusion:

Magnetic seeds provide a cost-effective alternative to guidewires for breast cancer localization, enhancing operational efficiency and reducing costs, which is significant for clinical practice.

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