Asystole was found in 5-Minute Emergency Consult within Emergency Central. Look up diagnosis tables, treatment guidelines, and drug and disease information.
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Absence of ventricular electrical activity
- An end-stage rhythm, sometimes degrading from:
- Prolonged bradycardia
- Prolonged ventricular fibrillation (VF)
- Prolonged pulseless electrical activity
- Patient is extremely unlikely to survive when asystole occurs outside the hospital:
- ∼40% will have return of spontaneous circulation and survive to hospital admission, but <15% survive to hospital discharge.
- Prognosis is similarly poor for those patients who develop asystole after countershock for ventricular tachycardia/VF; <10% survive to hospital discharge.
- Potentially reversible causes include:
- Hypovolemia (blood loss)
- Drug overdose
- Pulmonary embolism
- Myocardial infarction
- Tension pneumothorax
- Cardiac tamponade