Electrophysiologic testing aids diagnosis and subtyping of myoclonus.
Neurology
; 90(8): e647-e657, 2018 02 20.
Article
en En
| MEDLINE
| ID: mdl-29352095
ABSTRACT
OBJECTIVE:
To determine the contribution of electrophysiologic testing in the diagnosis and anatomical classification of myoclonus.METHODS:
Participants with a clinical diagnosis of myoclonus were prospectively recruited, each undergoing a videotaped clinical examination and battery of electrophysiologic tests. The diagnosis of myoclonus and its subtype was reviewed after 6 months in the context of the electrophysiologic findings and specialist review of the videotaped clinical examination.RESULTS:
Seventy-two patients with myoclonus were recruited. Initial clinical anatomical classification included 25 patients with cortical myoclonus, 7 with subcortical myoclonus, 2 with spinal myoclonus, and 15 with functional myoclonic jerks. In 23 cases, clinical anatomical classification was not possible because of the complexity of the movement disorder. Electrophysiologic testing was completed in 66, with agreement of myoclonus in 60 (91%) and its subtype in 28 (47%) cases. Subsequent clinical review by a movement disorder specialist agreed with the electrophysiologic findings in 52 of 60; in the remaining 8, electrophysiologic testing was inconclusive.CONCLUSIONS:
Electrophysiologic testing is an important additional tool in the diagnosis and anatomical classification of myoclonus, also aiding in decision-making regarding therapeutic management. Further development of testing criteria is necessary to optimize its use in clinical practice.
Texto completo:
1
Base de datos:
MEDLINE
Asunto principal:
Electrodiagnóstico
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Mioclonía
Tipo de estudio:
Diagnostic_studies
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Observational_studies
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Prognostic_studies
Límite:
Adolescent
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Adult
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Aged
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Aged80
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Child
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Female
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Humans
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Male
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Middle aged
Idioma:
En
Revista:
Neurology
Año:
2018
Tipo del documento:
Article