Table 5. Correlation between the repeated adverse electromyographic changes and clinicopathological and anatomical features and loss of signal.

Values are presented as number (%), mean ± standard deviation, or median (range).

TZ, tubercle of Zuckerkandl; LOB, ligament of Berry; ATD, autoimmune thyroid disease.

^a)LOB entrapment accompanied by 1 or more of the following features: the TZ, extralaryngeal branching, ATD, hyperthyroidism, or lobe volume of >29 cm³. ^b)The cutoff value of lobe volume to predict repeated adverse electromyographic changes which is identified by receiver operating characteristic curve analysis.