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Impact of autofluorescence for detection of parathyroid glands during thyroidectomy on postoperative parathyroid hormone levels : parallel multicentre randomized clinical trial

Bergenfelz, Anders LU ; Barczynski, Marcin ; Heie, Anette ; Muth, Andreas ; Passler, Christian ; Schneider, Max ; Wierzbicka, Paulina ; Konturek, Alexander ; Brauckhoff, Katrin and Elf, Anna Karin , et al. (2023) In British Journal of Surgery 110(12). p.1824-1833
Abstract

Background: Techniques for autofluorescence have been introduced to visualize the parathyroid glands during surgery and to reduce hypoparathyroidism after thyroidectomy. Methods: This parallel multicentre RCT investigated the use of Fluobeam® LX to visualize the parathyroid glands by autofluorescence during total thyroidectomy compared with no use. There was no restriction on the indication for surgery. Patients were randomized 1: 1 and were blinded to the group allocation. The hypothesis was that autofluorescence enables identification and protection of the parathyroid glands during thyroidectomy. The primary endpoint was the rate of low parathyroid hormone (PTH) levels the day after surgery. Results: Some 535 patients were... (More)

Background: Techniques for autofluorescence have been introduced to visualize the parathyroid glands during surgery and to reduce hypoparathyroidism after thyroidectomy. Methods: This parallel multicentre RCT investigated the use of Fluobeam® LX to visualize the parathyroid glands by autofluorescence during total thyroidectomy compared with no use. There was no restriction on the indication for surgery. Patients were randomized 1: 1 and were blinded to the group allocation. The hypothesis was that autofluorescence enables identification and protection of the parathyroid glands during thyroidectomy. The primary endpoint was the rate of low parathyroid hormone (PTH) levels the day after surgery. Results: Some 535 patients were randomized, and 486 patients received an intervention according to the study protocol, 246 in the Fluobeam® LX group and 240 in the control group. Some 64 patients (26.0 per cent) in the Fluobeam® LX group and 77 (32.1 per cent) in the control group had low levels of PTH after thyroidectomy (P = 0.141; relative risk (RR) 0.81, 95 per cent c.i. 0.61 to 1.07). Subanalysis of 174 patients undergoing central lymph node clearance showed that 15 of 82 (18 per cent) in the Fluobeam® LX group and 31 of 92 (33 per cent) in the control group had low levels of PTH on postoperative day 1 (P = 0.021; RR 0.54, 0.31 to 0.93). More parathyroid glands were identified during operation in patients who had surgery with Fluobeam® LX, and fewer parathyroid glands in the surgical specimen on definitive histopathology. No specific harm related to the use of Fluobeam® LX was reported. 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 (http://www.clinicaltrials.gov).

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publishing date
type
Contribution to journal
publication status
published
subject
in
British Journal of Surgery
volume
110
issue
12
pages
10 pages
publisher
Oxford University Press
external identifiers
  • pmid:37758507
  • scopus:85176462776
ISSN
0007-1323
DOI
10.1093/bjs/znad278
language
English
LU publication?
yes
id
5aae0cbc-6079-4181-b4d3-c80e8ca9024e
date added to LUP
2023-12-18 15:06:24
date last changed
2024-04-17 03:20:26
@article{5aae0cbc-6079-4181-b4d3-c80e8ca9024e,
  abstract     = {{<p>Background: Techniques for autofluorescence have been introduced to visualize the parathyroid glands during surgery and to reduce hypoparathyroidism after thyroidectomy. Methods: This parallel multicentre RCT investigated the use of Fluobeam<sup>®</sup> LX to visualize the parathyroid glands by autofluorescence during total thyroidectomy compared with no use. There was no restriction on the indication for surgery. Patients were randomized 1: 1 and were blinded to the group allocation. The hypothesis was that autofluorescence enables identification and protection of the parathyroid glands during thyroidectomy. The primary endpoint was the rate of low parathyroid hormone (PTH) levels the day after surgery. Results: Some 535 patients were randomized, and 486 patients received an intervention according to the study protocol, 246 in the Fluobeam<sup>®</sup> LX group and 240 in the control group. Some 64 patients (26.0 per cent) in the Fluobeam<sup>®</sup> LX group and 77 (32.1 per cent) in the control group had low levels of PTH after thyroidectomy (P = 0.141; relative risk (RR) 0.81, 95 per cent c.i. 0.61 to 1.07). Subanalysis of 174 patients undergoing central lymph node clearance showed that 15 of 82 (18 per cent) in the Fluobeam<sup>®</sup> LX group and 31 of 92 (33 per cent) in the control group had low levels of PTH on postoperative day 1 (P = 0.021; RR 0.54, 0.31 to 0.93). More parathyroid glands were identified during operation in patients who had surgery with Fluobeam<sup>®</sup> LX, and fewer parathyroid glands in the surgical specimen on definitive histopathology. No specific harm related to the use of Fluobeam<sup>®</sup> LX was reported. 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 (http://www.clinicaltrials.gov).</p>}},
  author       = {{Bergenfelz, Anders and Barczynski, Marcin and Heie, Anette and Muth, Andreas and Passler, Christian and Schneider, Max and Wierzbicka, Paulina and Konturek, Alexander and Brauckhoff, Katrin and Elf, Anna Karin and Dahlberg, Jakob and Hermann, Michael}},
  issn         = {{0007-1323}},
  language     = {{eng}},
  number       = {{12}},
  pages        = {{1824--1833}},
  publisher    = {{Oxford University Press}},
  series       = {{British Journal of Surgery}},
  title        = {{Impact of autofluorescence for detection of parathyroid glands during thyroidectomy on postoperative parathyroid hormone levels : parallel multicentre randomized clinical trial}},
  url          = {{http://dx.doi.org/10.1093/bjs/znad278}},
  doi          = {{10.1093/bjs/znad278}},
  volume       = {{110}},
  year         = {{2023}},
}