Syncope causes, by system
CNS causes include HEAD:
Hypoxia/Hypoglycemia
Epilepsy
Anxiety
Dysfunctional brain stem (basivertebral TIA)
Cardiac causes are HEART:
Heart attack
Embolism (PE)
Aortic obstruction (IHSS, AS or myxoma)
Rhythm disturbance, ventricular
Tachycardia
Vascular causes are VESSELS:
Vasovagal
Ectopic (reminds one of hypovolemia)
Situational
Subclavian steal
ENT (glossopharyngeal neuralgia)
Low systemic vascular resistance (Addison's, diabetic vascular neuropathy)
Sensitive carotid sinus
Mnemonic:
HEAD HEART VESSELS
Hypoxia/Hypoglycemia
Epilepsy
Anxiety
Dysfunctional brain stem (basivertebral TIA)
Cardiac causes are HEART:
Heart attack
Embolism (PE)
Aortic obstruction (IHSS, AS or myxoma)
Rhythm disturbance, ventricular
Tachycardia
Vascular causes are VESSELS:
Vasovagal
Ectopic (reminds one of hypovolemia)
Situational
Subclavian steal
ENT (glossopharyngeal neuralgia)
Low systemic vascular resistance (Addison's, diabetic vascular neuropathy)
Sensitive carotid sinus
Mnemonic:
HEAD HEART VESSELS
More mnemonics in this category
Acute LVF management
Atrial fibrillation: causes of new onset
GCS Intubation
Ipecac: contraindications
JVP: raised JVP differential
Life threatening injuries in major trauma
MI: immediate treatment
PEA/Asystole (ACLS): etiology
Rapid sequence intubation (RSI)
Respiratory burns
Shock: signs and symptoms
Shock: types
Subarachnoid hemorrhage (SAH) causes
Tension pneumothorax: signs and symptoms