Annual Prevalence of Intraoperative Neuromonitoring for Thyroidectomy, Parathyroidectomy, and Parotidectomy in the Korean Population from 2010 through 2020

Background and Objectives The prevalence of intraoperative neuromonitoring (IONM) has not been reported. Thus, we evaluated the prevalence of three kinds of IONM in the Korean population using data from the Korean National Health Insurance Service (KNHIS). Materials and Methods Using the data of the Healthcare Big Data Hub by KNHIS, the annual prevalence of intraoperative neurophysiologic monitoring at one site/≥ 2 or more sites (IONM one/two) from 2010 through 2020 and intraoperative laryngeal nerve monitoring in thyroid and parathyroid surgery (IOLNM) from 2017 through 2020 were measured. Results The number of IOLNMs increased from 2,872 in 2017 to 5,427 in 2020. The number of IONMs increased from 1,521 in 2010 to 2,144 in 2020. The number of IONM two continuously increased from 4,689 in 2010 to 16,450 in 2020. Conclusion As expected, the prevalence of IONM is increasing overall. This study provides the exact change in the prevalence of IONM in a Korean population using real-world data.