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ORIGINAL ARTICLES
Year : 2019  |  Volume : 2  |  Issue : 3  |  Page : 102-108

Non-motor symptoms of Parkinson’s disease: its prevalence across various stages and its correlation with the severity of the disease and quality of life


Department of Neurology, Andhra Medical College, Visakhapatnam, Andhra Pradesh, India

Correspondence Address:
Dr. Butchi Raju Garuda
Department of Neurology, 2nd Floor, Superspeciality Block, King George Hospital/Andhra Medical College, Maharanipeta, Visakhapatnam-530002, Andhra Pradesh.
India
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/AOMD.AOMD_9_19

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BACKGROUND: Non-motor symptoms (NMSs) were a real burden in Parkinson’s disease (PD) and contributed to severe disability, impaired quality of life (QoL), and shortened life expectancy. AIM: The aim of this study was to investigate the prevalence of NMSs in PD and their correlation of NMS with disease duration, severity, and Unified Parkinson's Disease Rating Scale (UPDRS) motor score and their impact on patient’s QoL. MATERIALS AND METHODS: This was a prospective cross-sectional study. Sixty-four patients who were diagnosed by United Kingdom Parkinson's Disease Brain Bank criteria were studied. Non-motor symptom scale (NMSS) analyzed NMS, and motor dysfunction was assessed by the UPDRS II and III during OFF condition and QoL by Parkinson’s Disease Questionnaire-39 (PDQ-39) questionnaire. RESULTS: The prevalence of NMS was 93.75% (n = 60). Most frequent NMS was difficulty in falling asleep (54.7%), urinary urgency (39%), and memory impairment (37.5%). Most disabling symptoms are difficulty in falling asleep (3.34 ± 4.1) and fatigue (2.48 ± 4.2). The total NMSS scores were correlated with Hoehn and Yahr stage, and Movement Disorder Society UPDRS and PDQ-39 scores, but not with duration of disease. Correlation between NMSS and PDQ-39 scores was stronger as compared to the relationship between UPDRS and PDQ-39 scores (r = 0.71 and 0.58, respectively, P = 0.00). CONCLUSION: This study showed the high prevalence of NMSs and value of NMS as predictors of QoL in patients with PD. Therefore, understanding the pathophysiology of these NMSs should be placed at the forefront to develop new therapeutic approaches by improving the QoL of patients with PD.


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