Using High-Speed Nasopharyngoscopy to Quantify the Bubbling Above the Velopharyngeal Valve in Cases of Nasal Rustle.

ABSTRACT:

Objective

The loud and severely distorting form of audible nasal emission (commonly known as nasal turbulence or nasal rustle) typically occurs with a small velopharyngeal opening during production of pressure-sensitive consonants. The purpose of this study was to determine whether bubbling of the secretions, which commonly occurs on the superior aspect of the velopharyngeal port when there is a small opening, is a periodic process that can generate sound in the nasal cavity.

Participants

Ten pediatric patients were included in the study. All participants had normal articulation and resonance but exhibited audible nasal emission characterized as nasal rustle.

Measures

For each participant, high-speed video (HSV) nasopharyngoscopy and acoustic signals were recorded sim

SUBMITTER: Oren L 

PROVIDER: S-EPMC9175873 | biostudies-literature | 2020 May

REPOSITORIES: biostudies-literature