VT storm
Clinical syndrome of recurrent ventricular tachycardia episodes requiring multiple interventions within 24 hours.
Full Definition
A life-threatening clinical syndrome characterized by recurrent episodes of sustained ventricular tachycardia or ventricular fibrillation, typically defined as three or more episodes requiring intervention within 24 hours. VT storm represents an electrical emergency requiring immediate intervention including antiarrhythmic medications, sedation, emergency ablation, or mechanical circulatory support. The condition often occurs in patients with structural heart disease and carries significant morbidity and mortality. Precipitating factors include electrolyte abnormalities, ischemia, medication changes, or progression of underlying cardiomyopathy. Management requires a multidisciplinary approach addressing both acute arrhythmia control and underlying triggers.
Usage
Usage note: Document specific episode frequency and intervention requirements when describing VT storm.
In Context
- "The patient presented in VT storm with seven appropriate ICD shocks over six hours." — Emergency consultation note
- "Urgent VT ablation was performed to break the cycle of recurrent VT storm episodes." — Emergency ablation procedure note