Photodynamic Vvisualisation of Paratyroid Glands – Results of Clinical use Eng

The purpose: an approbation of intraoperative photodynamic identification of healthy and adenomatous parathyroid glands using 5-aminolevulinic acid (5-ALA) at thyroid and parathyroid operations.Materials and methods: intraoperative photodynamic identification using 5-ALA was performed in 25 patients with various thyroid and parathyroid diseases. 2–3 hours before the surgery the patients have received 1,5 g of 5-ALA per os. In 10 cases video-assisted operations were performed. In 3 cases at primary hyperparathyroidism video-assisted parathyroidectomy was used. In other cases the operative intervention was carried out using conventional technique. The operative wound surface was exposed to blue light of the light source KARL STORZ D-Light C (wavelength –380–440 nm) and the endoscope with the system of filters. During preand postoperative period we have been registering basic clinical parameters, including parathyroid hormone level and the level of ionized calcium monitoring before operation, in 24, 48 hours and 1 month after operation. Results: the parathyroid glands were identified in 23 of 25 patients. There were no cases of allergic reactions and other side effects of 5-ALA introduction.Conclusion: intraoperative parathyroid glands identification by the way of registration of their fluorescence at peroral administration of 5-aminolevulinic acid is possible for the overwhelming majority of patients.