Guideline‑Recommended Monitoring for Sotalol Initiation and Follow‑Up

Pre‑Initiation Electrolyte Management

• Correcting low potassium and magnesium levels before starting sotalol reduces the risk of pro‑arrhythmic events, such as torsades de pointes. 1

Hospital Monitoring Guidelines

• The 2023 ACC/AHA/ACCP/HRS guidelines advise that sotalol initiation be performed in a facility with continuous ECG monitoring throughout hospitalization to detect QT prolongation and ventricular arrhythmias. 1

Post‑Discharge ECG Follow‑Up

• A 12‑lead ECG should be obtained 3–6 months after discharge to reassess QT interval and cardiac rhythm. 1
• After the initial post‑discharge ECG, repeat ECGs every 3–6 months; more frequent testing is warranted when patients are receiving other QT‑prolonging drugs or when renal function is changing. 1

Drug Interaction Monitoring

• Patients receiving concomitant medications that prolong the QT interval require more frequent ECG assessments to promptly identify excessive QT prolongation. 1

Laboratory Monitoring During Therapy

• Serum potassium, magnesium, and creatinine levels should be measured alongside ECG monitoring throughout sotalol therapy to minimize the risk of torsades de pointes. 1