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Svihlik J, Novotny M, Tykalova T, Polakova K, Brozova H, Kryze P, Sousa M, Krack P, Tripoliti E, Ruzicka E, Jech R, Rusz J. Long-Term Averaged Spectrum Descriptors of Dysarthria in Patients With Parkinson's Disease Treated With Subthalamic Nucleus Deep Brain Stimulation. J Speech Lang Hear Res 2022; 65:4690-4699. [PMID: 36472939 DOI: 10.1044/2022_jslhr-22-00308] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
PURPOSE This study aimed to evaluate whether long-term averaged spectrum (LTAS) descriptors for reading and monologue are suitable to detect worsening of dysarthria in patients with Parkinson's disease (PD) treated with subthalamic nucleus deep brain stimulation (STN-DBS) with potential effect of ON and OFF stimulation conditions and types of connected speech. METHOD Four spectral moments based on LTAS were computed for monologue and reading passage collected from 23 individuals with PD treated with bilateral STN-DBS and 23 age- and gender-matched healthy controls. Speech performance of patients with PD was compared in ON and OFF STN-DBS conditions. RESULTS All LTAS spectral moments including mean, standard deviation, skewness, and kurtosis across both monologue and reading passage were able to significantly distinguish between patients with PD in both stimulation conditions and control speakers. The spectral mean was the only LTAS measure sensitive to capture better speech performance in STN-DBS ON, as compared to the STN-DBS OFF stimulation condition (p < .05). Standardized reading passage was more sensitive compared to monologue in detecting dysarthria severity via LTAS descriptors with an area under the curve of up to 0.92 obtained between PD and control groups. CONCLUSIONS Our findings confirmed that LTAS is a suitable approach to objectively describe changes in speech impairment severity due to STN-DBS therapy in patients with PD. We envisage these results as an important step toward a continuum development of technological solutions for the automated assessment of stimulation-induced dysarthria. SUPPLEMENTAL MATERIAL https://doi.org/10.23641/asha.21644798.
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Affiliation(s)
- Jan Svihlik
- Department of Circuit Theory, Faculty of Electrical Engineering, Czech Technical University in Prague, Czech Republic
- Department of Computing and Control Engineering, Faculty of Chemical Engineering, University of Chemistry and Technology, Prague, Czech Republic
| | - Michal Novotny
- Department of Circuit Theory, Faculty of Electrical Engineering, Czech Technical University in Prague, Czech Republic
| | - Tereza Tykalova
- Department of Circuit Theory, Faculty of Electrical Engineering, Czech Technical University in Prague, Czech Republic
| | - Kamila Polakova
- Department of Neurology and Centre of Clinical Neuroscience, First Faculty of Medicine, Charles University, and General University Hospital, Prague, Czech Republic
| | - Hana Brozova
- Department of Neurology and Centre of Clinical Neuroscience, First Faculty of Medicine, Charles University, and General University Hospital, Prague, Czech Republic
| | - Petr Kryze
- Department of Circuit Theory, Faculty of Electrical Engineering, Czech Technical University in Prague, Czech Republic
| | - Mario Sousa
- Movement Disorders Center, Department of Neurology, University Hospital of Bern, Switzerland
| | - Paul Krack
- Movement Disorders Center, Department of Neurology, University Hospital of Bern, Switzerland
| | - Elina Tripoliti
- UCL Queen Square Institute of Neurology, Department of Clinical and Movement Neurosciences, National Hospital for Neurology and Neurosurgery, University College London Hospitals NHS Foundation Trust, United Kingdom
| | - Evzen Ruzicka
- Department of Neurology and Centre of Clinical Neuroscience, First Faculty of Medicine, Charles University, and General University Hospital, Prague, Czech Republic
| | - Robert Jech
- Department of Neurology and Centre of Clinical Neuroscience, First Faculty of Medicine, Charles University, and General University Hospital, Prague, Czech Republic
| | - Jan Rusz
- Department of Circuit Theory, Faculty of Electrical Engineering, Czech Technical University in Prague, Czech Republic
- Department of Neurology and Centre of Clinical Neuroscience, First Faculty of Medicine, Charles University, and General University Hospital, Prague, Czech Republic
- Movement Disorders Center, Department of Neurology, University Hospital of Bern, Switzerland
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