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Last reviewed dd mmm yyyy. Last edited dd mmm yyyy

Authoring team

The causes of syncope include:

  • neurally mediated syncope:
    • vasovagal attack 18%
    • situational syncope 5%
    • carotid-sinus syncope 1%

  • psychiatric disorder:
    • principally panic/anxiety disorder 2%

  • orthostatic syncope 8%

  • drug-induced 3%

  • neurological disease 10%

  • cardiac and vascular syncope:
    • structural heart disease 4%
    • arrhythmia 14%

  • unknown 34%


  • 1) Kapoor, WN. (2000). Primary Care: Syncope. N. Engl. J. Med. 343(25), 1856-62.

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