ELECTROPHYSIOLOGY
Torsade de pointes induced by short-term oral amiodarone therapy
Division of Cardiology, Korea University Cardiovascular Center, Ansan Hospital, 516 Gojan-1-Dong, Danwon-ku, Ansan 425-707, Republic of Korea
Although amiodarone appears to have few pro-arrhythmic effects, torsade de pointes (TdP) has been observed during long-term drug administration, usually in conjunction with electrolyte disturbances, a change in drug dosage, or concomitant drug therapy. We report two cases of amiodarone-induced TdP shortly after administration of a low dose of oral amiodarone, in the absence of predisposing factors.
Key Words: Amiodarone, Torsade de pointes, QT prolongation
* Corresponding author. Tel: +82 31 412 6565; fax: +82 31 412 5594. E-mail address: hongeuy{at}korea.ac.kr