The purpose of the investigation is to study if the use of Fluobeam®-LX to identify parathyroid glands through autofluorescence during thyroid surgery, may reduce the risk of postoperative hypoparathyroidism, defined as low PTH in patients undergoing total thyroidectomy
Temporary and permanent hypoparathyroidism is probably the most important complication of total thyroidectomy. The rate of permanent hypoparathyroidism in quality registries are in the range of is 5-7 percent of patients undergoing surgery. Patients operated on benign disease with total thyroidectomy, and who suffer from permanent hypoparathyroidism (defined as medication with active Vitamin D analogue therapy for more than 6 months, are at increased risk of renal insufficiency. They also have, for unclear reasons, an increased risk of suffering from malignancy, compared to patients without this complication. Patients with known ischemic heart disease before surgery also have an increased risk of suffering a new episode of cardiovascular disease. Finally, patients with permanent hypoparathyroidism have an increased risk of mortality compared to patients without this complication. If, by using a technique for autofluorescence (Fluobeam® -LX), one can more accurately identify and avoid damage to the parathyroid glands during the surgical procedure, this would be of great importance for patients undergoing total thyroidectomy for thyroid disease. Patients undergoing total thyroidectomy are randomized to the use of Fluobeam® -LX to detect the parathyroid glands through autofluorescence during thyroid surgery, or clinical evaluation only (control). Outcome is evaluated by parathyroid hormon (PTH) levels the first postoperative day and the need for medication with calcium and Vitamin D up to 6 months postoperatively.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
PREVENTION
Masking
SINGLE
Enrollment
516
Fluobeam®-LX is used to identify and evaluate parathyroid glands using auto-fluorescence during thyroid surgery.
Rudolfstiftung
Vienna, Austria
Haukeland University Hospital
Bergen, Norway
Jagiellonian University Medical College
Krakow, Poland
Sahlgrenska University Hospital
Gothenburg, Sweden
Postoperative level of Parathyroid hormone (PTH)
Low plasma parathyroid hormone (PTH) (below the normal reference range)
Time frame: First postoperative day
Postoperative medication with Active vitamin D
Medication with active Vitamin D; dihydrotachysterol (ATC A11CC02), alfacalcidol (ATC A11CC03), or calcitriol (ATC A11CC04) due to postoperative hypocalcaemia. Evaluated by standard questionaire in the database "Eurocrine" (yes/no)
Time frame: At discharge (up to 7 days), at 1 month and at 6 months
Postoperative medication with oral calcium
Medication with oral calcium; calcium carbonate (A12AA04), and calcium lactate gluconate (A12AA06) Evaluated by standard questionaire in the database "Eurocrine" (yes/no)
Time frame: At discharge (up to 7 days), at 1 month and at 6 months
Identification of parathyroid glands
Number of identified parathyroid glands
Time frame: Intraoperatively
Autotransplantation of parathyroid tissue
Number of autotransplanted parathyroid glands
Time frame: Intraoperatively
Excised parathyroid glands
Number of excised parathyroid glands found on the specimen at histopathology
Time frame: One week
Time for operation
Time for surgery (skin to skin) in minutes
Time frame: Intraoperatively
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Skåne University Hospital, Department of Surgery, Lund
Lund, Sweden
Hospital stay
Hospital stay in days
Time frame: One week
Re-hospitalization due to hypocalcaemia
Any subsequent hospitalization within 30 days for hypocalcaemia-related symptoms
Time frame: One month