Management of Sotalol-Induced Bradycardia

Initial Stabilization

The American College of Cardiology recommends stopping sotalol immediately and administering atropine 0.5-1 mg IV as first-line therapy, with preparation for temporary transcutaneous or transvenous pacing if atropine fails to improve heart rate and hemodynamic status in patients with severe sotalol-induced bradycardia 1, 2
Discontinue sotalol permanently in patients with drug-induced bradycardia from a reversible cause that must be eliminated before any other intervention, as recommended by the American College of Cardiology 1
Assess hemodynamic stability immediately by checking blood pressure, mental status, presence of chest pain, and signs of heart failure in patients with severe sotalol-induced bradycardia, as recommended by the American Heart Association 2
A heart rate of 20 bpm with hemodynamic compromise constitutes a medical emergency requiring immediate intervention, according to the European Heart Journal 3, 4

The American Heart Association recommends atropine 0.5-1 mg IV bolus for symptomatic bradycardia, which can be repeated every 3-5 minutes up to a total dose of 3 mg 2
If atropine fails or provides inadequate response, glucagon 3-5 mg IV bolus followed by infusion at 3-5 mg/hour is reasonable for beta-blocker-mediated bradycardia, as recommended by the American Heart Association 2
Isoproterenol 2-10 mcg/min IV can be used as second-line therapy, though it increases myocardial oxygen demand and should be avoided if coronary ischemia is suspected, according to the American Heart Association 2
Dopamine 5-20 mcg/kg/min may be considered for refractory hypotension, as recommended by the American Heart Association 2

The European Heart Journal recommends transcutaneous pacing immediately if pharmacologic therapy fails to improve heart rate above 40 bpm or if hemodynamic instability persists in patients with severe sotalol-induced bradycardia 3, 4
Transvenous pacing may be required if transcutaneous pacing is ineffective or poorly tolerated, according to the European Heart Journal 4

The American College of Cardiology recommends admitting patients to intensive care or cardiac care unit for continuous telemetry monitoring until heart rate stabilizes above 50 bpm without pacing 1
Do not proceed with the scheduled procedure until bradycardia resolves and hemodynamic stability is confirmed for at least 24-48 hours, as recommended by the European Heart Journal 3
Never restart sotalol after a severe bradycardia event, as the patient has demonstrated severe intolerance to the medication, according to the American College of Cardiology 1