Intraoperative neuromonitoring in traditional and miniinvasive thyroidectomy. A single center experience in 1652 nerve at risk.

In high-volume centers the rate of transitory / permanent vocal cord palsy is low but also in these Units the need of feel safety is related to IONM. The use of the IONM is an helpful tool for dissection and anatomical identification of the nerves. IONM has a high specificity and sensitivity and a high negative predictive value. PPV as 52% definable low, may be related to the transient stupor of nerve function.