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Preoperative Localization Strategies for Primary Hyperparathyroidism: An Economic Analysis

  • Endocrine Tumors
  • Published:
Annals of Surgical Oncology Aims and scope Submit manuscript

Abstract

Background

Strategies for localizing parathyroid pathology preoperatively vary in cost and accuracy. Our purpose was to compute and compare comprehensive costs associated with common localization strategies.

Methods

A decision-analytic model was developed to evaluate comprehensive, short-term costs of parathyroid localization strategies for patients with primary hyperparathyroidism. Eight strategies were compared. Probabilities of accurate localization were extracted from the literature, and costs associated with each strategy were based on 2011 Medicare reimbursement schedules. Differential cost considerations included outpatient versus inpatient surgeries, operative time, and costs of imaging. Sensitivity analyses were performed to determine effects of variability in key model parameters upon model results.

Results

Ultrasound (US) followed by 4D-CT was the least expensive strategy ($5,901), followed by US alone ($6,028), and 4D-CT alone ($6,110). Strategies including sestamibi (SM) were more expensive, with associated expenditures of up to $6,329 for contemporaneous US and SM. Four-gland, bilateral neck exploration (BNE) was the most expensive strategy ($6,824). Differences in cost were dependent upon differences in the sensitivity of each strategy for detecting single-gland disease, which determined the proportion of patients able to undergo outpatient minimally invasive parathyroidectomy. In sensitivity analysis, US alone was preferred over US followed by 4D-CT only when both the sensitivity of US alone for detecting an adenoma was ≥94 %, and the sensitivity of 4D-CT following negative US was ≤39 %. 4D-CT alone was the least costly strategy when US sensitivity was ≤31 %.

Conclusions

Among commonly used strategies for preoperative localization of parathyroid pathology, US followed by selective 4D-CT is the least expensive.

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Acknowledgment

The authors thank Ekin Turan for help verifying radiation exposure estimates. This research is supported in part by the Program in Cancer Outcomes Research Training Grant (NCI R25CA092203) (Lubitz), and by Award Number K07CA133097 from the National Cancer Institute (Pandharipande). The research content is solely the responsibility of the authors and does not necessarily represent the official views of the National Cancer Institute or the National Institutes of Health.

Disclosures

Dr. Pandharipande receives funding from the Medical Imaging and Technology Alliance, for unrelated research.

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Correspondence to Carrie C. Lubitz MD, MPH.

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Lubitz, C.C., Stephen, A.E., Hodin, R.A. et al. Preoperative Localization Strategies for Primary Hyperparathyroidism: An Economic Analysis. Ann Surg Oncol 19, 4202–4209 (2012). https://doi.org/10.1245/s10434-012-2512-2

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