Electromyographic abnormalities of the vocal cords in multiple system atrophy phenotypes


  • There are differing abnormality patterns in electromyography (EMG) of the vocal cords in those with multiple system atrophy (MSA) parkinsonism subtype (MSA-P) compared with the cerebellar phenotype (MSA-C).

Why this matters

    This study indicates that the pathogenesis of stridor in MSA differs based on MSA subtype, which may inform treatment decisions.