Electrophysiologic characteristics of tremor in Parkinson?s disease and essential tremor
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 a...
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| Format: | Article |
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Thieme Revinter Publicações
2014-04-01
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| Series: | Arquivos de Neuro-Psiquiatria |
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| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0004-282X2014000400301&lng=en&tlng=en |
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| author | Ederson Cichaczewski Renato P. Munhoz Joaquim M. Maia Percy Nohama Edison M. Nóvak Helio A. Teive |
| author_facet | Ederson Cichaczewski Renato P. Munhoz Joaquim M. Maia Percy Nohama Edison M. Nóvak Helio A. Teive |
| author_sort | Ederson Cichaczewski |
| collection | DOAJ |
| description | 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. |
| format | Article |
| id | doaj-art-0a95e12a321f4342b51b48a149dabd2c |
| institution | Kabale University |
| issn | 1678-4227 |
| language | English |
| publishDate | 2014-04-01 |
| publisher | Thieme Revinter Publicações |
| record_format | Article |
| series | Arquivos de Neuro-Psiquiatria |
| spelling | doaj-art-0a95e12a321f4342b51b48a149dabd2c2025-08-20T03:55:27ZengThieme Revinter PublicaçõesArquivos de Neuro-Psiquiatria1678-42272014-04-0172430130610.1590/0004-282X20140006S0004-282X2014000400301Electrophysiologic characteristics of tremor in Parkinson?s disease and essential tremorEderson CichaczewskiRenato P. MunhozJoaquim M. MaiaPercy NohamaEdison M. NóvakHelio A. TeiveTremor 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.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0004-282X2014000400301&lng=en&tlng=endoença de Parkinsontremor essencialtremor |
| spellingShingle | Ederson Cichaczewski Renato P. Munhoz Joaquim M. Maia Percy Nohama Edison M. Nóvak Helio A. Teive Electrophysiologic characteristics of tremor in Parkinson?s disease and essential tremor Arquivos de Neuro-Psiquiatria doença de Parkinson tremor essencial tremor |
| title | Electrophysiologic characteristics of tremor in Parkinson?s disease and essential tremor |
| title_full | Electrophysiologic characteristics of tremor in Parkinson?s disease and essential tremor |
| title_fullStr | Electrophysiologic characteristics of tremor in Parkinson?s disease and essential tremor |
| title_full_unstemmed | Electrophysiologic characteristics of tremor in Parkinson?s disease and essential tremor |
| title_short | Electrophysiologic characteristics of tremor in Parkinson?s disease and essential tremor |
| title_sort | electrophysiologic characteristics of tremor in parkinson s disease and essential tremor |
| topic | doença de Parkinson tremor essencial tremor |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0004-282X2014000400301&lng=en&tlng=en |
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