Syncope is fainting. Pre-syncope is before fainting, whedn one is about to faint. Some symptoms of dizziness such as wooziness, feeling about to black out, and tunnel vision may be pre-syncopal and are due to insufficient blood flow to the brain. These symptoms are typically worse when standing, improve with lying down and may be experienced by healthy individuals who rise quickly from a chair, often after a meal, and have a few seconds of disorientation.
DIZZINESS, PRE-SYNCOPAL
Meaning of DIZZINESS, PRE-SYNCOPAL in English
English dictionary of medicine. Английский словарь медицины. 2012