Abstract:Objective To observe the influence of velopharyngeal closure type under electronic nasopharyngoscope on the severity of voice disorders. Methods Thirty-two patients admitted to the Department of Otolaryngology Head and Neck Surgery of the First People’s Hospital of Foshan City from Jan 2021 to Feb 2021 were randomly selected. According to the type of velopharyngeal closure at the time with “a” sound, they were divided into two groups, one group with velopharyngeal closure type Ⅲ, and the other group with other types of closure. The voice disorder was analyzed according to the voice handicap index (VHI)-12, the grade, roughness, breathiness, asthenia and strain (GRBAS) scale and the rate of velopharyngeal insufficiency. Results The total scores of VHI and GRBAS in the group with velopharyngeal closure type Ⅲ were significantly higher than those in the other groups (P<0.05). In the five GRBAS scores, the roughness score in the group with velopharyngeal closure type Ⅲ was higher than that in the other group (P<0.05). The scores of emotion and function in the group with velopharyngeal closure type Ⅲ were higher than those in the other groups (P<0.05), while the difference in physiology between the two groups was statistically insignificant. The group with velopharyngeal closure type Ⅲ had a higher rate of velopharyngeal insufficiency than the other group (P<0.05). Conclusions Patients with type Ⅲ velopharyngeal closure show significant voice disorders.To observe the type of velopharyngeal closure via electronic nasopharyngoscope in patients with voice disorders may provide strong evidences for the assessment of voice disorders and voice speech therapy such as oral and nasal resonance.