Key result
Diltiazem terminates and suppresses idiopathic left ventricular tachycardia in structurally normal heart.
Why the study?
The role of calcium-channel blockers other than verapamil, such as diltiazem, in treating idiopathic left ventricular tachycardia is unknown.
Case Report (n=1)
Answers are grounded in this paper and cite their sources.
Diltiazem may terminate idiopathic left ventricular tachycardia in select cases; hypothesis-generating and leaves open need for controlled trials.
Idiopathic left ventricular tachycardia is known to be responsive to verapamil in many cases. However, the role of other calcium-channel blockers, such as diltiazem, in treating this specific type of ventricular tachycardia is unknown. We report a case of idiopathic left ventricular tachycardia in a patient with a structurally normal heart, which was terminated and suppressed in the electrophysiology laboratory by a single dose of diltiazem intravenously, and was subsequently suppressed long-term with sustained-release diltiazem. Our finding suggests that idiopathic left ventricular tachycardia may be managed effectively with diltiazem in both the acute and chronic settings.
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Lin et al. (1997) conducted a case report in Idiopathic left ventricular tachycardia (n=1). Diltiazem was evaluated on Termination and suppression of tachycardia. Intravenous and sustained-release diltiazem successfully terminated and suppressed idiopathic left ventricular tachycardia in a patient with a structurally normal heart.
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