Syncope
Basics
Description
Transient loss of consciousness, typically lasting no longer than 1 to 2 minutes, due to a transient drop in cerebral perfusion pressure
General Prevention
- Avoiding circumstances predisposing to the most common form of syncope (vasovagal)
- Sitting or lying down when warning signs occur
- Maintaining adequate hydration, especially during illness/exertion
Pathophysiology
Most common mechanism is vasovagal or neurocardiogenic, in which a variety of stimuli and conditions—pain, heat, dehydrated state, emotional upset, carotid pressure—trigger increased vagal tone, leading to slowed heart rate, peripheral vasodilation, and decreased cerebral perfusion.
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Citation
Cabana, Michael D., editor. "Syncope." 5-Minute Pediatric Consult, 8th ed., Wolters Kluwer, 2019. Pediatrics Central, peds.unboundmedicine.com/pedscentral/view/5-Minute-Pediatric-Consult/617408/all/Syncope.
Syncope. In: Cabana MDM, ed. 5-Minute Pediatric Consult. Wolters Kluwer; 2019. https://peds.unboundmedicine.com/pedscentral/view/5-Minute-Pediatric-Consult/617408/all/Syncope. Accessed December 9, 2024.
Syncope. (2019). In Cabana, M. D. (Ed.), 5-Minute Pediatric Consult (8th ed.). Wolters Kluwer. https://peds.unboundmedicine.com/pedscentral/view/5-Minute-Pediatric-Consult/617408/all/Syncope
Syncope [Internet]. In: Cabana MDM, editors. 5-Minute Pediatric Consult. Wolters Kluwer; 2019. [cited 2024 December 09]. Available from: https://peds.unboundmedicine.com/pedscentral/view/5-Minute-Pediatric-Consult/617408/all/Syncope.
* Article titles in AMA citation format should be in sentence-case
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