Effect of Levodopa + Carbidopa on the Laryngeal Electromyographic Pattern in Parkinson Disease.

Background: Vocal impairment is one of the main debilitating symptoms of Parkinson disease (PD). The effect of levodopa on vocal function remains unclear.

Objective: This study aimed to determine the effect of levodopa on electromyographic patterns of the laryngeal muscle in patients with PD.

Laryngeal electromyography as a diagnostic tool for Parkinson's disease.

Objectives/hypothesis: To study the laryngeal electromyography pattern in patients with Parkinson's disease (PD) and vocal complaints at different stages of the disease.

Study Design: Cross-sectional cohort study.

Methods: Ninety-four adults with PD and vocal complaints at different stages of the disease (according to the Hoehn and Yahr scale) underwent laryngeal electromyography.

Laryngeal electromyography and acoustic voice analysis in Parkinson's disease: a comparative study.

Unlabelled: Parkinson's disease (PD) involves a progressive depletion of dopamine in the basal ganglia leading to motor alterations. Oral communication impairment occurs in 75% to 90% of patients and has been poorly studied.

Aim: to asses laryngeal electromyography (LEMG) patterns and correlate them to vocal analysis in patients with Parkinson's disease.

Laryngeal electromyography in adults with Parkinson's disease and voice complaints.

Objective: To study the laryngeal electromyography (LEMG) pattern in patients with Parkinson's disease (PD) and vocal complaints.

Study Design And Setting: Twenty-six adults with PD and vocal complaints and 26 controls with presbyphonia underwent videolaryngoscopy (VL) and LEMG.

Results: No tremor was found on LEMG of the cricothyroid and thyroarytenoid muscles, even in cases with clinical and VL tremor.