Electrophysiologic characteristics of tremor in Parkinson?s disease and essential tremor
| Autor: | Ederson Cichaczewski, Renato P. Munhoz, Joaquim M. Maia, Percy Nohama, Edison M. Nóvak, Helio A. Teive |
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| Jazyk: | angličtina |
| Rok vydání: | 2014 |
| Předmět: | |
| Zdroj: | Arquivos de Neuro-Psiquiatria, Vol 72, Iss 4, Pp 301-306 (2014) |
| Druh dokumentu: | article |
| ISSN: | 1678-4227 0004-282X |
| DOI: | 10.1590/0004-282X20140006 |
| Popis: | Tremor in essential tremor (ET) and Parkinson’s disease (PD) usually present specific electrophysiologic profiles, however amplitude and frequency may have wide variations. Objective: To present the electrophysiologic findings in PD and ET. Method: Patients were assessed at rest, with posture and action. Seventeen patients with ET and 62 with PD were included. PD cases were clustered into three groups: predominant rest tremor; tremor with similar intensity at rest, posture and during kinetic task; and predominant kinetic tremor. Results: Patients with PD presented tremors with average frequency of 5.29±1.18 Hz at rest, 5.79±1.39 Hz with posture and 6.48±1.34 Hz with the kinetic task. Tremor in ET presented with an average frequency of 5.97±1.1 Hz at rest, 6.18±1 Hz with posture and 6.53±1.2 Hz with kinetic task. Seven (41.2%) also showed rest tremor. Conclusion: The tremor analysis alone using the methodology described here, is not sufficient to differentiate tremor in ET and PD. |
| Databáze: | Directory of Open Access Journals |
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