Confused and have questions? We’ve got answers. With Chegg Study, you can get step-by-step solutions to your questions from an expert in the field. If you rather get 1:1 study help, try 30 minutes of free online tutoring with Chegg Tutors.

Syncope

From Biology-Online Dictionary | Biology-Online Dictionary
Jump to: navigation, search

Definition

noun, plural: syncopes

The transient loss of consciousness, generally caused by global cerebral ischemia


Supplement

Syncope is the medical term for fainting or a swoon. Possible causes of syncope are related to the general cerebral ischemia, which may then be caused by an abrupt lowering of blood pressure (hypotension), failure of the cardiac systole, hypoglemia, emotional distress, lack of sleep, and deglutition (i.e. swallow syncope).

Prior to fainting or syncope, some of the signs include dizziness, temporary loss of hearing, transient loss of sensation (e.g. pain), temporary loss of vision, nausea, muscular weakness, sweating, and palpitations. This stage prior to the actual fainting is called presyncope.1

There are different forms of syncope. Fainting associated with swallowing is called swallow syncope. Fainting associated with micturition is referred to as micturition syncope. Syncope associated with paroxysms of coughing is called tussive syncope.


Word origin: Latin syncope, from Greek synkopḗ (a cutting short)

Synonym(s):

See also:

Related term(s):

Mentioned in:

Reference(s):
1 Reeves, Alexander G; Rand S. Swenson. "Chapter 14: Evaluation of the Dizzy Patient". Disorders of the nervous system: a primer. Dartmouth Medical School.