Discuss The Value Of External Anal Sphincter Electromyography For The Diagnosis Of Multiple System Atrophy

ObjectiveTo evaluate the clinical, autonomic nervous dysfunction, neuroimaging and external anal sphincter electromyography(EAS-EMG) features of patients with multiple system atrophy(MSA) and Parkinson’s disease(PD),and to explore the differential diagnosic values for these diseases and guide the early diagnosis and early treatment of them. MethodsAccording to the multiple system atrophy(MSA) and Parkinson’s disease(PD) diagnostic criteria,collect Outpatient and ward patients respectively.A detailed disease history,physical examination of nervous system, neuroimaging examination(Eg,branial MRI,etc)was collected in all patients enrolled,EAS-EMG examination was took for every patients.Mean duration, polyphasic ratio and satellite potential occurrence rate were comparable among groups.Mean duration prolongation were graded as normal(...