Conclusion
The use of autofluorescence during thyroidectomy did not reduce the rate of low PTH levels on postoperative day 1 in the whole group of patients. It did, however, reduce the rate in a subgroup of patients. Registration number: NCT04509011 (This multicentre RCT, performed in four centres and in four countries, has provided evidence for the benefit of using autofluorescence during thyroidectomy to identify and preserve the parathyroid glands.