Non-motor Symptoms in Patients with Parkinson's Disease: A Cross-sectional Survey.

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Background In multiple studies around the globe, non-motor symptoms (NMS) have been identified as a source of immense disability in patients with Parkinson's disease (PD). However, there is a scarcity of data from Asia. This is the first study of the Pakistani population to assess the impact of NMS in PD on patients. Objectives To determine the frequency of NMS of PD in the Pakistani population and compare it with existing data. Methods In this cross-sectional survey, patient demographics were retrospectively collected from a tertiary care hospital neurology database. This study population comprised 97 patients at different stages of PD who presented to the neurology outpatient department. Disease severity was assessed using the Hoehn and Yahr scale. The NMS questionnaire was employed to identify the presence of NMS. Medical records were reviewed for demographic data and recent treatment history. Results The mean age was 67 years (76.3% of patients had adult onset PD and 23.7% had young onset PD). The NMS with the highest frequencies were nocturia (77.3%), urinary urgency (61.9%), constipation (59.8%), dementia (58.8%), insomnia (52.6%), and orthostatic hypotension (52.6%). The earliest manifestations of NMS were nocturia, forgetfulness, low mood, and orthostatic hypotension. Sleep abnormalities, falling episodes, and hallucinations are prevalent among patients with advanced disease. Conclusion There is a higher frequency of NMS present in the Pakistani population as compared to existing data in other populations.

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