Near Infrared (NIR) Autofluorescence Image-guided Thyroid Surgery

  • End date
    Dec 1, 2023
  • participants needed
  • sponsor
    Rigshospitalet, Denmark
Updated on 24 March 2022


The objective of this ongoing randomized controlled trial is to examine whether the use of intra-operative NIR(near infrared) camera can reduce the number of patients who experience transient or persistent hypoparathyroidism after total thyroidectomy and completion thyroidectomy, both in malignant and benign thyroid disease.


Patients admitted to total thyroidectomy or completion thyroidectomy is ramdomized to:

  1. Intervention: NIR optic imaging assisted identification of the parathyroid glands during thyroidectomy using parathyroid gland autofluorescence.
  2. Control: Conventional thyroidectomy and parathyroid identification by the surgeon.

PTH and ionized-Ca blood samples are collected preoperatively, within 12 hours postoperatively and at 1-, 3-, 9- and 12-months follow-up.

Anticipated 214 patients are included, all of which participate in 3 months follow-up. Only patients with persistent hypoparathyroidism at this point continue til maximum 12 months follow-up.

An interim analysis will be conducted when inclusion of anticipated 128 patients and 3 months follow-up is reached.

Condition Hypoparathyroidism Postprocedural, Hypocalcemia, Surgery--Complications
Treatment NIR optical imaging camera
Clinical Study IdentifierNCT04193332
SponsorRigshospitalet, Denmark
Last Modified on24 March 2022


Yes No Not Sure

Inclusion Criteria

Able to understand patient information and to give written informed consent
Patients admitted to either total thyroidectomy og completion thyroidectomy, both benign and malign

Exclusion Criteria

Not able to understand patient information and to give written informed consent
Previous parathyroid surgery or other parathyroid decease
Age under 18
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