Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Clinical Symptoms Influencing Parkinson’s Patients’ Quality of Life in Latvia: A Single-Center Cohort Study

Version 1 : Received: 4 May 2023 / Approved: 6 May 2023 / Online: 6 May 2023 (04:37:34 CEST)

A peer-reviewed article of this Preprint also exists.

Minibajeva, O.; Zeltiņa, E.; Karelis, G.; Kurjāne, N.; Ķēniņa, V. Clinical Symptoms Influencing Parkinson’s Patients’ Quality of Life in Latvia: A Single-Center Cohort Study. Medicina 2023, 59, 935. Minibajeva, O.; Zeltiņa, E.; Karelis, G.; Kurjāne, N.; Ķēniņa, V. Clinical Symptoms Influencing Parkinson’s Patients’ Quality of Life in Latvia: A Single-Center Cohort Study. Medicina 2023, 59, 935.

Abstract

: Background: Parkinson’s disease (PD) is a chronic, progressive illness with a profound impact on health-related quality of life, and it is crucial to know what factors influence quality of life throughout the course of the disease. This study aimed to evaluate PD patients’ motor and non-motor symptoms to compare symptom severity between PD clinical phenotypes and to assess the impact of disease symptoms on quality of life in a cohort of Latvian patients. Methods: We evaluated 43 patients with Parkinson’s disease. Fourteen patients had tremor-dominant (TD) PD, twenty-five patients had postural instability/gait difficulty (PIGD), and four patients had a mixed phenotype. Results: The patients’ mean age was 65.21 years, and the disease’s mean duration was 7 years. The most common non-motor symptoms were fatigue (95.3%), sleep disturbance (83.7%), daytime sleepiness (83.7%), and pain and other sensations (81.4%). PIGD patients had a higher prevalence of depressed mood, daytime sleepiness, constipation, light headedness on standing, cognitive impairment, and severe gastrointestinal and urinary disturbances (as assessed using the SCOPA-AUT domains) compared with TD patients. A high prevalence of fatigue was assessed in both disease subtypes. Health-related quality of life significantly statistically correlated with MDS-UPDRS parts III and IV (r = 0.704), the Hoehn and Yahr scale (r = 0.723), as well as the SCOPA-AUT scale’s gastrointestinal (r = 0.639), cardiovascular (r = 0.586), thermoregulatory (r = 0.566) and pupillomotor domains (r = 0.597). Conclusion: The severity of motor symptoms, as well as non-motor symptoms, such as fatigue, apathy, sleep problems and daytime sleepiness, pain, and disturbances in gastrointestinal and cardiovascular function, negatively affect PD patients’ health-related quality of life. Thermoregulatory and pupillomotor symptoms also significantly affect PD patients’ well-being.

Keywords

Parkinson’s disease; clinical phenotypes; non-motor symptoms; quality of life

Subject

Medicine and Pharmacology, Neuroscience and Neurology

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