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Related Experiment Video

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Near-Infrared Autofluorescence for Parathyroid Detection During Endocrine Neck Surgery: A Randomized Clinical Trial.

Alexandria G Cousart1,2, Colleen M Kiernan3, Parker A Willmon1,2

  • 1Vanderbilt Biophotonics Center, Vanderbilt University, Nashville, Tennessee.

JAMA Surgery
|July 16, 2025
PubMed
Summary
This summary is machine-generated.

Fiber-based near-infrared autofluorescence (NIRAF) improved parathyroid gland identification during thyroidectomy and bilateral parathyroidectomy. This technique enhances surgical precision without increasing operative time, aiding in the preservation of parathyroid glands.

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Area of Science:

  • Endocrine Surgery
  • Surgical Technology
  • Medical Imaging

Background:

  • Accurate identification and preservation of parathyroid glands (PGs) are critical during thyroidectomy and parathyroidectomy to prevent hypoparathyroidism.
  • Inadvertent damage to PGs can lead to significant postoperative complications.

Purpose of the Study:

  • To evaluate the efficacy of fiber-based near-infrared autofluorescence (NIRAF) in increasing intraoperatively identified PGs.
  • To determine if NIRAF reduces the incidence of hypoparathyroidism following these procedures.

Main Methods:

  • A multicenter randomized clinical trial involving 752 patients undergoing thyroidectomy or parathyroidectomy.
  • Patients were randomized to undergo surgery with or without fiber-based NIRAF.
  • Outcomes included the number of PGs identified and the rate of transient and permanent hypoparathyroidism.

Main Results:

  • NIRAF significantly increased the mean number of PGs identified during bilateral exploration parathyroidectomy (3.5 vs. 3.2) and thyroidectomy (3.3 vs. 2.8).
  • No significant difference in hypoparathyroidism rates was observed between the NIRAF and control groups.
  • The use of NIRAF did not increase surgical duration.

Conclusions:

  • Fiber-based NIRAF is a valuable tool for enhancing parathyroid gland visualization during thyroidectomy and bilateral parathyroidectomy.
  • This technology can improve surgical outcomes by increasing PG identification without prolonging operative time.