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Orofacial Strength and Voice Quality as Outcome of Levodopa Challenge Test in Parkinson Disease
Author(s) -
Lechien Jérôme R.,
Delsaut Bertil,
Abderrakib Anissa,
Huet Kathy,
Delvaux Veronique,
Piccaluga Myriam,
Khalife Mohamad,
Harmegnies Bernard,
Saussez Sven,
Blecic Serge
Publication year - 2020
Publication title -
the laryngoscope
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.181
H-Index - 148
eISSN - 1531-4995
pISSN - 0023-852X
DOI - 10.1002/lary.28645
Subject(s) - medicine , phonation , levodopa , rating scale , audiology , parkinson's disease , physical therapy , quality of life (healthcare) , disease , physical medicine and rehabilitation , psychology , developmental psychology , nursing
Objective To assess the usefulness of orofacial strength and voice quality as assessment of response to levodopa challenge test (LCT) used in the diagnosis of early idiopathic Parkinson disease (IPD). Study Design Controlled Prospective Study. Methods From January 2014 to April 2019, patients with early IPD and healthy individuals were recruited and evaluated for clinical findings (Hoehn and Yahr scale; Unified Parkinson's Disease Rating Scale); Voice Handicap Index (VHI); grade of dysphonia, roughness, breathiness, asthenia, and strain and instability (GRBASI); maximal phonation time; phonation quotient; acoustic parameters; and orofacial muscle strength Oral Performance Instrument (IOPI; IOPI Medical, Woodinville, WA, USA) t) at baseline and 45 minutes after the levodopa intake (LCT). Results A total of 32 IPD patients and 20 healthy individuals completed the study. Healthy individuals exhibited better VHI, grade of dysphonia, breathiness, asthenia, strain, instability, and acoustic measurements (noise‐related, tremor, F0 short‐ and mid‐term and intensity short‐term parameters) than healthy subjects. The mean values of muscle strength of lips, cheeks, fundamental frequency (F0), highest F0, and shimmer significantly improved from pre‐ to post‐LCT in IPD patients. Healthy individuals did not exhibit significant changes of orofacial strength and voice quality assessment from pre‐ to post‐LCT. Significant associations were found between clinical, orofacial strength, and some aerodynamic and acoustic measurements. Conclusion Orofacial strength and acoustic voice quality measurements may be used as objective outcomes of the LCT responsiveness in patients with early IPD. Level of Evidence 3A. Laryngoscope , 2020