Ms. Link et al., TORSADE-DE-POINTES AND PROLONGED QT INTERVAL FROM SURREPTITIOUS USE OF SOTALOL - USE OF DRUG LEVELS IN DIAGNOSIS, Chest, 112(2), 1997, pp. 556-557
Torsade de pointes is a well-established toxic effect of sotalol hydro
chloride. In a patient presenting with torsade de pointes and a long Q
Tc interval of unknown cause, a serum sotalol level was used to secure
an otherwise difficult diagnosis.