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Ind Psychiatry J. 2019 Jan-Jun;28(1):13-18. doi: 10.4103/ipj.ipj_64_19. Epub 2019 Dec 11.

Psychiatric morbidity, cognitive dysfunction and quality of life in drug-naive patients with Parkinson's disease: A comparative study.

Author information

1
Department of Psychiatry, Geetanjali Medical College and Hospital, Udaipur, Rajasthan, India.
2
Department of Psychiatry, Saheed Hasan Khan Mewati Government Medical College, Nuh, Haryana, India.

Abstract

Background:

To better understand the psychiatric disorders and cognition in Parkinson's disease (PD) and its impact on quality of life (QoL), patients need to be studied soon after diagnosis, before initiation of dopamine replacement therapy.

Aim:

This study aims to compare the nature and frequency of psychiatric morbidity, cognitive dysfunction, and quality of life in drug-naive patients with PD and healthy controls.

Materials and Methods:

The cross-sectional, comparative study was conducted in tertiary care center. Fifty drug-naive PD patients and fifty healthy controls were included and assessed on Modified Hoehn and Yahr scale, PD Questionnaire 8, Kolkata cognitive screening battery, General Health Questionnaire-12, and Hamilton Anxiety and Depression Rating Scale (HAM-A and HAM-D).

Results:

The mean scores of HAM-A and HAM-D of patients with PD were significantly higher than that of the comparison group. The patients with PD had statistically significant impairment in verbal fluency, Mini-Mental State Examination, calculation, memory immediate recall, visuoconstructional ability, and memory (delayed recall and recognition) in comparison to patients without PD. No statistically significant difference was observed with respect to object naming between the two groups.

Conclusion:

QoL of a PD patient is adversely affected by both the motor and nonmotor symptoms of the disease such as depression, anxiety, apathy, sleep disturbances, and cognitive impairment. The link between nonmotor symptoms and reduced QoL has important implications for the management of PD because the nonmotor symptoms often appear before patients are given anti-parkinsonian therapy. Screening of nonmotor symptoms in early stage of disease will decrease the morbidity and mortality and improve the QoL.

KEYWORDS:

Cognitive dysfunction; Parkinson's disease; psychiatric morbidity; quality of life

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