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Related Experiment Videos

Rapid parathyroid hormone analysis during venous localization.

Robert Udelsman1, John E Aruny, Patricia I Donovan

  • 1Department of Surgery, Yale University School of Medicine, Yale-New Haven Hospital, 330 Cedar Street, New Haven, CT 06520-8062, USA. robert.udelsman@yale.edu

Annals of Surgery
|May 2, 2003
PubMed
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Rapid parathyroid hormone (PTH) assay-guided venous localization aids in persistent primary hyperparathyroidism (PHPTH) cases. This technique improves surgical outcomes for challenging remedial explorations.

Area of Science:

  • Endocrinology
  • Surgical Oncology
  • Interventional Radiology

Background:

  • Persistent primary hyperparathyroidism (PHPTH) after initial surgery presents diagnostic challenges.
  • Noninvasive imaging may fail to localize persistent or recurrent parathyroid adenomas.
  • Intraoperative PTH assays have proven useful, leading to the adaptation of rapid PTH analysis for venous sampling.

Purpose of the Study:

  • To evaluate the utility of rapid parathyroid hormone (PTH) assay-guided venous localization in patients with persistent primary hyperparathyroidism (PHPTH).
  • To assess the impact of this technique on surgical planning and patient outcomes.

Main Methods:

  • Seven patients with persistent PHPTH and negative noninvasive imaging underwent selective venous sampling.
  • A rapid PTH assay with a 12-minute turnaround time was used for on-site hormone analysis.

Related Experiment Videos

  • Results guided further sampling and surgical exploration.

    • Main Results:

    • Venous localization identified a PTH gradient in six of seven patients.
    • Real-time data from the rapid PTH assay guided additional sampling in three cases.
    • Five of six patients with a positive PTH gradient underwent successful resection of parathyroid adenomas, achieving a cure.

    Conclusions:

    • Rapid PTH assay-guided venous localization is a valuable tool for managing persistent PHPTH.
    • This technique provides crucial information for surgeons, particularly in cases with negative noninvasive studies.
    • The study demonstrated a 100% cure rate when a venous gradient was identified, supporting routine use in selected patients.