Anal sphincter EMG does not distinguish between multiple system atrophy and Parkinson's disease.
Muscle Nerve
; 23(5): 731-4, 2000 May.
Article
en En
| MEDLINE
| ID: mdl-10797396
Clinical distinction of multiple system atrophy (MSA) from Parkinson's disease (PD) is often difficult. Several recent reports indicate that objective classification may be accomplished using electromyographic (EMG) testing of the anal or urethral sphincters, but some authors have found that these tests are not reliable for this purpose. We studied 13 patients with PD and 10 with probable MSA, as diagnosed by consensus of four movement disorders specialists, according to accepted clinical criteria. Anal sphincter EMG was performed blind to the clinical diagnosis. We found no significant differences in the mean duration of motor unit potentials (MUPs), mean MUP amplitude, or prevalence of polyphasic potentials, satellite potentials, very long duration MUPs, or spontaneous activity between the two groups. Thus, anal sphincter EMG does not differentiate between PD and MSA.
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Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Canal Anal
/
Enfermedad de Parkinson
/
Atrofia de Múltiples Sistemas
Tipo de estudio:
Diagnostic_studies
/
Risk_factors_studies
Límite:
Aged
/
Female
/
Humans
/
Male
/
Middle aged
Idioma:
En
Revista:
Muscle Nerve
Año:
2000
Tipo del documento:
Article
País de afiliación:
Israel
Pais de publicación:
Estados Unidos