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Preserving all parathyroids with intact blood supply in situ is a desirable goal while performing total thyroidectomy (TT) and central compartment dissection (CCLND), but the same is not feasible in presence of bulky and/or matted lymph nodes in the central compartment. The aim of this study was to investigate the difference in incidence of postoperative hypocalcemia between the groups of papillary thyroid carcinoma (PTC) patients who had truncal ligation (TL) versus ligation of peripheral branches (PL) of inferior thyroid artery (ITA) during TT and CCLND. Retrospective review of prospectively kept data of PTC patients undergoing TT and CCLND. Patients were divided in two groups: Group 1-( n  = 57) patients who had to undergo TL and Group 2-( n  = 99) patients having PL. Clinico-pathologic profile, operative details and follow-up events were noted. Clinico-pathologic profile of both groups was comparable except for higher incidences of tumor multicentricity ( p  = 0.014) in Group 1. There was no significant difference in the number of parathyroids identified between the Groups ( p  = 0.556) but more parathyroids were auto-transplanted in Group 1 ( p  = 0.001). The incidence of temporary (77.2% vs 83.8, p  = 0.304) and permanent hypocalcemia (7% vs 8.1%, p  = 0.810) was not significantly different between the groups and neither was need for intravenous calcium. At discharge, Group 1 patients received lower dose of calcium ( p  = 0.001) but not of vitamin D ( p  = 0.769). TL of ITA during CCLND does not result in increased temporary or permanent hypocalcemia rate.

Truncal Ligation of Inferior Thyroid Artery Does Not Affect the Incidence of Hypocalcaemia After Central Compartment Lymph Node Dissection