Extreme Sawtooth-Sign in Motor Neuron Disease (MND) suggests Laryngeal Resistance to Forced Expiratory Airflow.

Deanna Britton,Alexander Kain,Yu-Wen Chen,Jack Wiedrick,Joshua O Benditt,Albert L Merati,Donna Graville

The Annals of otology, rhinology, and laryngology（2023）

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摘要

The significantly larger-magnitude, lower-kurtosis, and more prominent presence of sawtooth-like airflow periodicity within a frequency range similar to phonation observed in individuals with MND with neurolaryngeal impairments suggests glottic airflow resistance during forced expiration.

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关键词

cough,forced vital capacity (FVC),glottic resistance,motor neuron disease (MND),sawtooth-sign

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