Abstract
BackgroundThis study compares the pathological outcomes and operative morbidity for papillary thyroid cancer (PTC) patients undergoing a primary total thyroidectomy (TT) with central lymph node dissection (CLND), to those undergoing an interval CLND following a previous thyroid operation, or for the unsuspected diagnosis of PTC. MethodsSingle-institution, retrospective review of PTC patients from 2000 to 2015 was performed. Three treatment groups were identified: primary TT/CLND, interval prophylactic CLND, and interval therapeutic CLND. Primary outcome measures were number of lymph nodes removed, hypoparathyroidism and recurrent laryngeal nerve (RLN) injury. ResultsResults for 30 prophylactic and 35 therapeutic interval CLND were compared with 218 patients undergoing primary TT/CLND. Interval CLND was associated with similar rates of cervical metastases, complications, and a trend towards decreased lymph node recovery. ConclusionReoperative CLND for incidental PTC frequently identifies cervical lymph node metastases, potentially reduces recurrence, and can be performed with similar morbidity to a primary lymphadenectomy.
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