Regarding the evaluation of PGs viability and function, in line with other studies (10, 15, 20), our study suggests that patients with at least one well-perfused PGs (ICG score 2) were closely associated with a higher ioPTH 3 and PTH on POD 1, thereby with a lower rate of transient hypoparathyroidism and subsequent transient hypocalcemia. The gene discussed is PTH; the disease is Hypocalcemia.