PTH and Hypocalcemia: Worth mentioning is the fact that the TDSI patient group had more cases of patients with Graves’ disease, only one patient experienced postsurgical hypocalcaemia with PTH levels after a month >10 pg/ml, unlike the other group of patients with three cases of Graves’ disease, in which all three experienced postsurgical hypocalcaemia and transient hypoparathyroidism.