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Syncope

Syncope is a topic covered in the 5-Minute Pediatric Consult.

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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 MD, ed. 5-Minute Pediatric Consult. 8th ed. Wolters Kluwer; 2019. https://peds.unboundmedicine.com/pedscentral/view/5-Minute-Pediatric-Consult/617408/all/Syncope. Accessed March 24, 2019.
Syncope. (2019). In Cabana, M. D. (Ed.), 5-Minute Pediatric Consult. Available from https://peds.unboundmedicine.com/pedscentral/view/5-Minute-Pediatric-Consult/617408/all/Syncope
Syncope [Internet]. In: Cabana MD, editors. 5-Minute Pediatric Consult. Wolters Kluwer; 2019. [cited 2019 March 24]. 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
TY - ELEC T1 - Syncope ID - 617408 ED - Cabana,Michael D, BT - 5-Minute Pediatric Consult UR - https://peds.unboundmedicine.com/pedscentral/view/5-Minute-Pediatric-Consult/617408/all/Syncope PB - Wolters Kluwer ET - 8 DB - Pediatrics Central DP - Unbound Medicine ER -