Treatment for Ventricular Tachycardia

Initial Assessment and Hemodynamic Stability

The American Heart Association recommends determining hemodynamic stability, with VT considered unstable if the patient has hypotension, chest pain, heart failure, or a heart rate ≥150 beats/min 2, 3
For hemodynamically unstable VT, immediate electrical cardioversion is indicated without delay, as recommended by the American College of Cardiology 4, 1
For pulseless VT, the European Resuscitation Council recommends following the VF protocol with immediate defibrillation 2, 3

The American College of Cardiology recommends providing immediate synchronized DC cardioversion starting at 100J, increasing to 200J and then 360J if needed 2, 3
The American Heart Association suggests sedating the patient before cardioversion if conscious but unstable 1

The American College of Cardiology recommends procainamide as the first-line pharmacological treatment, with a dose of 10-20 mg/kg IV at 50-100 mg/min over 10-20 minutes 1
The Journal of the American College of Cardiology recommends monitoring for hypotension and QRS widening during procainamide administration 5
Alternative medications include amiodarone, lidocaine, and sotalol, as recommended by the American Heart Association 4, 5, 2

The American College of Cardiology recommends considering IV beta-blockers for polymorphic VT with normal QT interval if ischemia-related 4, 1
The European Society of Cardiology recommends IV magnesium for polymorphic VT with long QT syndrome, with a dose of 8 mmol bolus followed by 2.5 mmol/h infusion 2, 3
The American Heart Association recommends pacing and beta-blockers for familial long QT syndrome, and avoiding isoproterenol in this condition 4

The American College of Cardiology recommends considering ICD implantation for secondary prevention in patients with structural heart disease, although this is not directly cited, catheter ablation may be indicated for recurrent VT, especially in patients with ischemic heart disease 1
The American Heart Association recommends beta-blockers as the cornerstone of treatment for catecholaminergic polymorphic VT 1

The American College of Cardiology notes that lidocaine is less effective than procainamide, sotalol, or amiodarone for stable VT 1
The European Resuscitation Council warns that amiodarone's antiarrhythmic effect may take up to 30 minutes, making it less suitable for emergent situations 2, 3