Undifferentiated syncope. Rule out cardiac/vascular killers before attributing to reflex/orthostatic.
Authored pathway active · symptom.syncope.ed_undifferentiated.ed
Undifferentiated syncope. Rule out cardiac/vascular killers before attributing to reflex/orthostatic.
Guidelines: ACC/AHA/HRS 2017 Syncope Guideline · ESC 2018 Syncope Guideline · Canadian Syncope Risk Score (Thiruganasambandamoorthy, CMAJ 2020)
Phenotypes (4)
- Syncope ED - Vasovagal (Reflex/Neurocardiogenic)
- Syncope ED - Cardiac/Arrhythmic (High Risk)
- Syncope ED - Structural Cardiac (AS/HCM/PE)
- Syncope ED - Orthostatic Hypotension
Red flags (6)
- Cardiac dysrhythmia (sustained VT, complete heart block, sinus arrest, long QT, Brugada, sustained SVT/AF with shock).CRITICAL
- Structural heart disease (severe AS, HCM, tamponade, RV strain, acute MI, acute valvular failure).CRITICAL
- Massive PE-induced syncope (sudden hypoxia + RV strain + hypotension; risk: malignancy, OCP, immobilization).CRITICAL
- Ruptured AAA / aortic dissection (back/chest pain + syncope + pulse deficit + BP differential).CRITICAL
- +2 more
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symptom.syncope.ed_undifferentiated · EmergencyStart patient workup
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