title: Evaluation of Cardiac Autonomic Functions in Older Parkinson's Disease Patients: a Cross-Sectional Study.
abstract: In Parkinson's disease (PD), non-motor symptoms may occur such as autonomic dysfunction. We aimed to evaluate both parasympathetic and sympathetic cardiovascular autonomic dysfunction in older PD cases. 84 PD cases and 58 controls, for a total of 142, participated in the study. Parasympathetic tests were performed using electrocardiography. Sympathetic tests were assessed by blood pressure measurement and 24-hour ambulatory blood pressure measurement. The prevalence of orthostatic hypotension in PD patients was 40.5% in PD patients and 24.1% in the control group (p> 0.05). The prevalence of postprandial hypotension was 47.9% in the PD group and 27.5% in the controls (p <0.05). The prevalence of impairment in heart rate response to deep breathing was 26.2% in the PD group and 6.9% in the control group (p <0.05). The prevalence of postprandial hypotension in PD with orthostatic hypotension was 94% and 16% in PD patients without orthostatic hypotension (p <0.05). The prevalence of impairment in heart rate response to deep breathing was 52.9% in PD patients with orthostatic hypotension and 8% in PD cases without orthostatic hypotension (p<0.05). The prevalence of impairment in heart rate response to postural change was 41% in PD cases with orthostatic hypotension and 12% in PD cases without orthostatic hypotension (p <0.05).Although there are tests for assessing cardiovascular autonomic function that are more reliable, they are more complicated, and evaluation of orthostatic hypotension by blood pressure measurement and cardiac autonomic tests by electrocardiography are recommended since these tests are cheap and easy.
authors.affiliation: Department of Geriatric Medicine, Ankara University School of Medicine İbn-I Sina Hospital, Samanpazarı, Altındağ, Ankara, Turkey.
authors.forename: Ahmet
authors.initials: A
authors.lastname: Yalcin
authors.affiliation: Department of Geriatric Medicine, Ankara University School of Medicine İbn-I Sina Hospital, Samanpazarı, Altındağ, Ankara, Turkey.
authors.forename: Volkan
authors.initials: V
authors.lastname: Atmis
authors.affiliation: Department of Geriatric Medicine, Ankara University School of Medicine İbn-I Sina Hospital, Samanpazarı, Altındağ, Ankara, Turkey.
authors.forename: Ozlem Karaarslan
authors.initials: OK
authors.lastname: Cengiz
authors.affiliation: Department of Geriatric Medicine, Ankara University School of Medicine İbn-I Sina Hospital, Samanpazarı, Altındağ, Ankara, Turkey.
authors.forename: Esat
authors.initials: E
authors.lastname: Cinar
authors.affiliation: Department of Geriatric Medicine, Ankara University School of Medicine İbn-I Sina Hospital, Samanpazarı, Altındağ, Ankara, Turkey.
authors.forename: Sevgi
authors.initials: S
authors.lastname: Aras
authors.affiliation: Department of Geriatric Medicine, Ankara University School of Medicine İbn-I Sina Hospital, Samanpazarı, Altındağ, Ankara, Turkey.
authors.forename: Murat
authors.initials: M
authors.lastname: Varli
authors.affiliation: Department of Geriatric Medicine, Ankara University School of Medicine İbn-I Sina Hospital, Samanpazarı, Altındağ, Ankara, Turkey.
authors.forename: Teslime
authors.initials: T
authors.lastname: Atli
keywords: Parkinson’s disease; autonomic functions; cardiovascular; older
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