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KMID : 1036520210110020044
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Clinical Neuro-Ophthalmology
2021 Volume.11 No. 2 p.44 ~ p.47
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A Case of Ictal Miosis in Initial Orthostatic Hypotension during Squatting-Standing Test
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Lee Min-Young
Kwon Eun-Jin
Sohn Eun-Hee
Jeong Seong-Hae
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Abstract
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Initial orthostatic hypotension (IOH) is one type of OH and it is defined as a fall in systolic blood pressure (BP) of > 40 mmHg and/ or > 20 mmHg in diastolic BP on upright position within 15 seconds. Symptoms of OH include light-headedness, visual blurring, dizziness, and fatigue. In OH patients, abnormal eye movements including downbeat and periodic alternating nystagmus were reported. Here in, we report a 24-year-old man who had ictal miosis in IOH with decreased serum level of norepinephrine. We assessed relationship between pupil diameter and vital sign such as systolic pressure, diastolic pressure and heart rate.
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KEYWORD
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Orthostatic hypotension, Miosis, Autonomic nerve system, Squatting-Standing test
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FullTexts / Linksout information
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Listed journal information
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