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Surveillance following breast cancer: is it cost-effective?

Introduction

There is debate about the role and optimal organisation of follow-up following treatment for primary breast cancer. We estimated using the best available evidence whether early detection by surveillance of ipsilateral breast tumour recurrence (IBTR) and metachronous contralateral breast cancer (MCBC) was cost-effective.

Methods

An economic model compared alternative surveillance strategies involving mammographic surveillance and/or clinical follow-up performed at differing surveillance intervals. The model structure was based upon discussions with the clinical experts involved in the study, a survey of UK breast surgeons and radiologists, and the literature. Data to populate the model came from a series of systematic reviews and an analysis of the West Midlands Cancer Intelligence Unit Breast Cancer Registry. Results of the model were presented as incremental cost per QALYs - a measure of relative efficiency.

Results

The surveillance strategy most likely to be cost-effective was mammographic surveillance alone provided every 12 to 24 months. This result held for women who had previously received either breast-conserving surgery or mastectomy. Results were sensitive to primary tumour characteristics (size, grade, nodal involvement) used to define the likelihoods of developing an IBTR or MCBC. More intensive follow-up of women with higher likelihood of developing IBTR or MCBC may be worthwhile.

Conclusions

Our conclusions remain tentative due to the paucity of the underlying evidence base but suggest surveillance is likely to improve survival, with a strategy of mammography alone every 12 to 24 months appearing cost-effective.

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Correspondence to L Ternent.

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Ternent, L., MacLennan, G., Heys, S. et al. Surveillance following breast cancer: is it cost-effective?. Breast Cancer Res 12, P5 (2010). https://doi.org/10.1186/bcr2658

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Keywords

  • Breast Cancer
  • Primary Breast Cancer
  • Ipsilateral Breast Tumour Recurrence
  • Surveillance Strategy
  • Unit Breast