Vasodepressor syncope: The temporary loss of consciousness in
a particular kind of situation. (Syncope is temporary loss of
consciousness or, in plain English, fainting).
The situations that trigger this reaction are diverse and include
having blood drawn, straining while urinating or defecating or
coughing. The reaction also can be due to the emotional stress of fear
or pain.
In these situations, people subject to vasodepressor syncope
often become pale and feel nauseated, sweaty, and weak just before they
lose consciousness.
Vasodepressor syncope is caused a reflex of the involuntary
nervous system called the vasovagal reaction. The vasovagal reaction
leads the heart to slow down (bradycardia) and, at the same time, it
leads the nerves to the blood vessels in the legs to permit those
vessels to dilate (widen). The result is that the heart puts out less
blood, the blood pressure drops, and what blood is circulating tends to
go into the legs rather than to the head. The brain is deprived of
oxygen and the fainting
episode occurs.
A vasovagal reaction is also called a vasovagal attack. And
vasodepressor syncope is also called situational syncope, vasovagal
syncope, and Gower syndrome.
Ugh I hate life.
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