Syncope: Causes

" HEAD, HEART & VESSELS! "

CNS causes: " HEAD "

  • Hypoxia/ Hypoglycemia
  • Epilepsy
  • Anxiety
  • Dysfunctional brain stem (basivertebral TIA)

Cardiac causes: " HEART "

  • Heart attack
  • Embolism (PE)
  • Aortic obstruction (IHSS, AS or myxoma)
  • Rhythm disturbance, ventricular
  • Tachycardia

 

Vascular causes: " VESSELS "

  • Vasovagal
  • Ectopic (hypovolemia)
  • Situational
  • Subclavian steal syndrome
  • ENT (glossopharyngeal neuralgia)
  • Low systemic vascular resistance (addison's, diabetic vascular neuropathy)
  • Sensitive carotid sinus

 

 

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