Acoustic voice assessment in Parkinson's disease patients submitted to posteroventral pallidotomy |
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Authors: | Mourão Lucia Figueiredo Aguiar Patrícia Maria de Carvalho Ferraz Fernando Antônio Patriani Behlau Mara Suzana Ferraz Henrique Ballalai |
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Affiliation: | Department of Neurology and Neurosurgery, Universidade Federal de S?o Paulo, S?o Paulo, Brazil. |
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Abstract: | Long-term complications in levodopa treated Parkinson's disease (PD) patients caused a resurgence of interest in pallidotomy as an option of treatment. However, postoperative complications such as speech disorders can occur. PURPOSE: The aim of this study is to evaluate the acoustic voice in PD patients, before and after posteroventral pallidotomy. METHOD: Twelve patients with PD were submitted to neurological and voice assessments during the off and on phases, in the pre-operative, 1st and 3rd post-operative months. The patients were evaluated with the UPDRS and the vocal acoustic parameters -- f0, NHR, jitter, PPQ, Shimmer, APQ (using the software MultiSpeech-Kay Elemetrics-3700). RESULTS: The off phase UPDRS scores revealed a tendency to improvement at the 1st month and the off phase worsened. The shimmer and APQ improved. CONCLUSION: This study shows that pallidotomy has little improvement on functional use of communication of PD patients. |
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