Syncope Flashcards
describe transient loss of consciousness (TLOC)
a state of apparent of real loss of consciousness with loss of awareness
what can TLOC be caused by?
Trauma
Syncope
Epileptic Seizures
TLOC mimics
what is Syncope?
transient loss of consciousness due to hypoperfusion
what are the 3 types of syncope?
Reflex syncope
cardiac syncope
orthostatic syncope
what are the different types of reflex syncope?
neural
vasovagal
situational
carotid sinus
describe neural reflex syncope?
syncope caused by a modification in heart rate (cardioinhibition) and or vascular tone causing vasodilation
describe vasovagal reflex syncope?
faint triggered by emotional distress or orthostatic stress
associated with pallor, sweating and nausea
describe situational reflex syncope?
faint during/ immediately after a specific trigger (eg cough or swallowing)
describe carotid sinus reflex syncope?
triggered by mechanical manipulation of the neck
more common in elderly particularly males
what is cardiac syncope?
syncope caused by cardiac event resulting in drop in Cardiac Output
(caused by arrhythmia, acute MI, structural abnormalities)
what features suggest cardiac syncope?
happens during excretion or when supine
sudden onset palpatations just before syncope