Correlation of plasma 25-hydroxyvitamin D levels with severity of primary hyperparathyroidism and likelihood of parathyroid adenoma localization on sestamibi scan

Emad Kandil, Anthony P. Tufaro, Kathryn A. Carson, Frank Lin, Helina Somervell, Tarik Farrag, Alan Dackiw, Martha Zeiger, Ralph P. Tufano

Research output: Contribution to journalArticle

33 Scopus citations

Abstract

Objectives: To determine the relationship between preoperative plasma 25-hydroxyvitamin D (25[OH]D) levels and severity of primary hyperparathyroidism (PHPT) and to explore whether presurgical 25(OH)D levels could predict the likelihood of positive results on technetium Tc 99m sestamibi scintigraphy. Design: Retrospective analysis. Setting: Tertiary university referral center. Patients: A total of 421 consecutive patients underwent preoperative sestamibi scintigraphy and parathyroid exploration. Patients with cholecalciferol (vitamin D) deficiency, defined as plasma levels lower than 25 ng/mL, were compared with patients having no vitamin D deficiency. We explored the relationship between 25 (OH)D levels and intact parathyroid hormone (iPTH) levels, alkaline phosphatase (ALKP) levels, adenoma weight, binary sestamibi scan results, and postoperative serum calcium levels (at 1 week and 6 months). Main Outcome Measures: We hypothesized that severity of hypovitaminosis D would correlate with severity of PHPT and predict the likelihood of a positive finding on sestamibi scan. Results: Concentrations of iPTH and ALKP and parathyroid adenoma weight were significantly higher in patients with lower 25(OH)D levels (P < .01 for all). Patients with hypovitaminosis D had a greater percentage decrease in serum calcium levels 1 week and 6 months postoperatively (P < .05). Median 25(OH)D levels were lower in patients with positive sestamibi scan results (P < .001). Conclusions: Patients with hypovitaminosis D present with more advanced indices of PHPT. Parathyroid sestamibi scanning is more likely to show positive results for this subset of patients who may then benefit from sestamibi scan-directed surgical intervention.

Original languageEnglish (US)
Pages (from-to)1071-1075
Number of pages5
JournalArchives of Otolaryngology - Head and Neck Surgery
Volume134
Issue number10
DOIs
StatePublished - Oct 1 2008

ASJC Scopus subject areas

  • Surgery
  • Otorhinolaryngology

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