Characterizing the Normative Voice Tremor Frequency in Essential Vocal Tremor.

ABSTRACT:

Importance

Essential vocal tremor (EVT) is a neurologic voice disorder characterized by periodic fluctuations in pitch and loudness that can hinder intelligibility. Defining the normative range of vocal tremor frequency may assist in diagnosis and provide insight into disease mechanisms.

Objective

To characterize the normative voice tremor frequency in EVT (in hertz).

Design, setting, and participants

Cross-sectional observational study of 160 patients with EVT. The setting was a tertiary voice center. Participants were identified from a database of consecutive patients diagnosed as having laryngeal movement disorders between January 1, 1990, and April 1, 2017.

Main outcomes and measures

The following 3 methods measured the frequency of tremor experienced by pa

SUBMITTER: Paige C 

PROVIDER: S-EPMC6583089 | biostudies-literature | 2018 Dec

REPOSITORIES: biostudies-literature