VT storm
Pronunciation: vee-tee storm
A life-threatening condition characterized by three or more episodes of sustained ventricular tachycardia within 24 hours requiring intervention.
Full Definition
Ventricular tachycardia (VT) storm, also known as electrical storm, is a life-threatening cardiac emergency defined as three or more separate episodes of sustained ventricular tachycardia or ventricular fibrillation within a 24-hour period, each requiring cardioversion, defibrillation, or antitachycardia pacing for termination. This condition represents severe electrical instability and is often triggered by acute myocardial ischemia, electrolyte abnormalities, drug toxicity, or device malfunction. VT storm requires immediate intensive care management, including antiarrhythmic medications (particularly amiodarone), correction of precipitating factors, and sometimes emergency catheter ablation. The condition is associated with high morbidity and mortality and may necessitate mechanical circulatory support.
Usage
Usage note: Write as two words 'VT storm'; emphasize urgency and severity in clinical contexts.
In Context
- "The patient experienced VT storm requiring emergent catheter ablation and mechanical support." — Critical care report
- "Amiodarone infusion successfully suppressed the VT storm within 6 hours of initiation." — Treatment summary