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Autonomic dysfunction in chronic persistent dizziness

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Affiliated Author(s)
이형김현아
Alternative Author(s)
Lee, HyungKim, Hyun Ah
Journal Title
Journal of the Neurological Sciences
ISSN
0022-510X
Issued Date
2014
Keyword
Chronic diseaseDizzinessAutonomic nervous systemSympathetic nervous system diseasesTilt-table testValsalva maneuver
Abstract
Objective:

To investigate the autonomic dysfunction in patients with chronic persistent dizziness using standardized autonomic function tests.


Methods:

We prospectively recruited 18 patients with chronic persistent dizziness after excluding other causes with extensive investigations. A standardized battery of autonomic tests including the head up tilt (HUT) test, Valsalva maneuver (VM), and heart rate (HR) response to deep breathing was performed.


Results:

Approximately eighty percent of the patients showed at least one abnormality in autonomic tests. Two patterns of autonomic abnormality were identified: sympathetic failure, including abnormal decrease in blood pressure (BP) during HUT test or abnormal sympathetic indices related with the BP recovery during late phase II and phase IV during VM, and sympathetic hyperactivity, including abnormal increase in HR response during HUT test or an exaggerated phase IV response manifesting increased β-adrenergic tone during VM.


Conclusions:

Autonomic dysfunction is frequently found in patients with chronic persistent dizziness after excluding other causes with extensive investigations. Sympathetic failure or hyperactivity may be postulated as one of the possible causes of chronic persistent dizziness. Clinicians should be aware of the possibility of autonomic dysfunction in patients with chronic dizziness, even if the dizziness is not orthostatic but persistent.
Department
Dept. of Neurology (신경과학)
Brain Research Institute (뇌연구소)
Publisher
School of Medicine
Citation
Hyung Lee and Hyun-Ah Kim. (2014). Autonomic dysfunction in chronic persistent dizziness. Journal of the Neurological Sciences, 344(1–2), 165–170. doi: 10.1016/j.jns.2014.06.048
Type
Article
ISSN
0022-510X
DOI
10.1016/j.jns.2014.06.048
URI
https://kumel.medlib.dsmc.or.kr/handle/2015.oak/34287
Appears in Collections:
3. Research Institutues (연구소) > Brain Research Institute (뇌연구소)
1. School of Medicine (의과대학) > Dept. of Neurology (신경과학)
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