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January 03, 2017; 88 (1) Article

Effects of orthostatic hypotension on cognition in Parkinson disease

Justin Centi, Roy Freeman, Christopher H. Gibbons, Sandy Neargarder, Alexander O. Canova, Alice Cronin-Golomb
First published November 30, 2016, DOI: https://doi.org/10.1212/WNL.0000000000003452
Justin Centi
From the Department of Psychological and Brain Sciences (J.C., S.N., A.O.C., A.C.-G.), Boston University, Boston; Department of Neurology (J.C., R.F., C.H.G.), Beth Israel Deaconess Medical Center, Harvard Medical School, Boston; and Department of Psychology (S.N.), Bridgewater State University, Bridgewater, MA.
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Roy Freeman
From the Department of Psychological and Brain Sciences (J.C., S.N., A.O.C., A.C.-G.), Boston University, Boston; Department of Neurology (J.C., R.F., C.H.G.), Beth Israel Deaconess Medical Center, Harvard Medical School, Boston; and Department of Psychology (S.N.), Bridgewater State University, Bridgewater, MA.
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Christopher H. Gibbons
From the Department of Psychological and Brain Sciences (J.C., S.N., A.O.C., A.C.-G.), Boston University, Boston; Department of Neurology (J.C., R.F., C.H.G.), Beth Israel Deaconess Medical Center, Harvard Medical School, Boston; and Department of Psychology (S.N.), Bridgewater State University, Bridgewater, MA.
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Sandy Neargarder
From the Department of Psychological and Brain Sciences (J.C., S.N., A.O.C., A.C.-G.), Boston University, Boston; Department of Neurology (J.C., R.F., C.H.G.), Beth Israel Deaconess Medical Center, Harvard Medical School, Boston; and Department of Psychology (S.N.), Bridgewater State University, Bridgewater, MA.
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Alexander O. Canova
From the Department of Psychological and Brain Sciences (J.C., S.N., A.O.C., A.C.-G.), Boston University, Boston; Department of Neurology (J.C., R.F., C.H.G.), Beth Israel Deaconess Medical Center, Harvard Medical School, Boston; and Department of Psychology (S.N.), Bridgewater State University, Bridgewater, MA.
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Alice Cronin-Golomb
From the Department of Psychological and Brain Sciences (J.C., S.N., A.O.C., A.C.-G.), Boston University, Boston; Department of Neurology (J.C., R.F., C.H.G.), Beth Israel Deaconess Medical Center, Harvard Medical School, Boston; and Department of Psychology (S.N.), Bridgewater State University, Bridgewater, MA.
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Citation
Effects of orthostatic hypotension on cognition in Parkinson disease
Justin Centi, Roy Freeman, Christopher H. Gibbons, Sandy Neargarder, Alexander O. Canova, Alice Cronin-Golomb
Neurology Jan 2017, 88 (1) 17-24; DOI: 10.1212/WNL.0000000000003452

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Abstract

Objective: To investigate the relation between orthostatic hypotension (OH) and posture-mediated cognitive impairment in Parkinson disease (PD) using a cross-sectional and within-group design.

Methods: Individuals without dementia with idiopathic PD included 18 with OH (PDOH) and 19 without OH; 18 control participants were also included. Neuropsychological tests were conducted in supine and upright-tilted positions. Blood pressure was assessed in each posture.

Results: The PD groups performed similarly while supine, demonstrating executive dysfunction in sustained attention and response inhibition, and reduced semantic fluency and verbal memory (encoding and retention). Upright posture exacerbated and broadened these deficits in the PDOH group to include phonemic fluency, psychomotor speed, and auditory working memory. When group-specific supine scores were used as baseline anchors, both PD groups showed cognitive changes following tilt, with the PDOH group exhibiting a wider range of deficits in executive function and memory as well as significant changes in visuospatial function.

Conclusions: Cognitive deficits in PD have been widely reported with assessments performed in the supine position, as seen in both our PD groups. Here we demonstrated that those with PDOH had transient, posture-mediated changes in excess of those found in PD without OH. These observed changes suggest an acute, reversible effect. Understanding the effects of OH due to autonomic failure on cognition is desirable, particularly as neuroimaging and clinical assessments collect data only in the supine or seated positions. Identification of a distinct neuropsychological profile in PD with OH has quality of life implications, and OH presents itself as a possible target for intervention in cognitive disturbance.

GLOSSARY

BAI=
Beck Anxiety Index;
BDI-II=
Beck Depression Inventory II;
CERAD=
Consortium to Establish a Registry for Alzheimer's Disease;
DBP=
diastolic blood pressure;
DSB=
Digit Span Backward;
DSF=
Digit Span Forward;
GDS=
Geriatric Depression Scale;
OH=
orthostatic hypotension;
PD=
Parkinson disease;
PDOH=
Parkinson disease with orthostatic hypotension;
SBP=
systolic blood pressure;
WTAR=
Wechsler Test of Adult Reading

Footnotes

  • ↵* These authors contributed equally to this work.

  • Go to Neurology.org for full disclosures. Funding information and disclosures deemed relevant by the authors, if any, are provided at the end of the article.

  • Editorial, page 11

  • Received March 7, 2016.
  • Accepted in final form August 24, 2016.
  • © 2016 American Academy of Neurology
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Letters: Rapid online correspondence

  • Author response: Orthostatic hypotension, per se, can cause transient worsening of cognition
    • Justin Centi, Clinical Neuropsychologist, Boston Universitycenti@commpsych.com
    • Roy Freeman, Christopher H. Gibbons, Sandy Neargarder, Alexander O. Canova, Alice Cronin-Golomb
    Submitted August 10, 2017
  • Orthostatic hypotension, per se, can cause transient worsening of cognition
    • Pietro Guaraldi, MD, Neurology Otpatient Clinic, Department of Primary Care, Local Health Authority of Modenap.guaraldi@ausl.mo.it
    • Roberto Poda, Giovanna Calandra-Buonaura, Bologna, Italy; L Solieri; L Sambati; Roberto Gallassi, Pietro Cortelli, Bologna, Italy
    Submitted May 12, 2017
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