LEMG Findings of Vocal Fold Paresis in Voice Patients Who Play or Played Wind Instruments

Abstract

Voice patients who underwent laryngeal EMG for clinically suspected vocal fold paresis between 2019 and 2021 were included in the study. Subjects were divided into two groups depending on history of playing wind instruments. Only patients with insufficient information in their medical records were excluded. All data were reviewed retrospectively. Percentage of nerve recruitment, the recruitment rating scale used in previous studies, wind instrument played, gender, age, and laryngeal Myasthenia Gravis diagnosis were variables included in the descriptive statistics, correlational, and regression analyses used for statistical analysis. Data analysis indicated that in the 103 subjects included (47 wind instrumentalists and 56 non-wind instrumentalists) that wind instrument players, past and present, experience levels of greater decreased nerve recruitment that non-instrumentalist singers do when presenting with paresis. Kind of wind instrument played was statistically significant but moderately correlated to the RRS (Recruitment Rating Scale) of the left PCA. Sex was correlated moderately and statistically significantly with right CT recruitment. Playing wind instruments in voice patients diagnosed with paresis might be associated with increased severity of laryngeal nerve damage. Further research is needed to confirm or refute these findings.