Syncope, vasodepressor

Syncope, vasodepressor
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.

Medical dictionary. 2011.

Игры ⚽ Нужна курсовая?

Look at other dictionaries:

  • Syncope, coughing — The temporary loss of consciousness upon coughing. Syncope is the 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… …   Medical dictionary

  • Syncope, defecation — The temporary loss of consciousness upon defecating (having a bowel movement). Syncope is the temporary loss of consciousness or, in plain English, fainting. The situations that trigger this reaction are diverse and include having blood drawn,… …   Medical dictionary

  • Syncope, micturition — The temporary loss of consciousness upon urinating. (Syncope is the 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… …   Medical dictionary

  • Syncope, vasovagal — 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… …   Medical dictionary

  • Syncope, situational — The temporary loss of consciousness in a particular kind of situation. The situations that trigger this reaction are diverse, and include having blood drawn, straining while urinating or defecating, and coughing. It can also be due to the… …   Medical dictionary

  • 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… …   Medical dictionary

  • syncope — Loss of consciousness and postural tone caused by diminished cerebral blood flow. [G. synkope, a cutting short, a swoon] Adams Stokes s. s. due to complete AV block. SYN: Morgagni Adams Stokes s.. cardiac s. fainting with unconsciousness of any …   Medical dictionary

  • Vasovagal 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… …   Medical dictionary

  • Micturition syncope — The temporary loss of consciousness upon urinating. (Syncope is the 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… …   Medical dictionary

  • Coughing syncope — The temporary loss of consciousness upon coughing. Syncope is the 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… …   Medical dictionary

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”