Biventricular Pacing-Induced Torsade De Pointes
نویسندگان
چکیده
منابع مشابه
Sotalol-induced torsade de pointes.
A case of sotalol-induced polymorphous ventricular tachycardia (torsade de pointes) is presented. The patient had moderately prolonged Q-T interval before medication with sotalol with further prolongation after application of this drug. Electrophysiological study during rechallenge with sotalol demonstrated a uniform ventricular tachycardia with a somewhat polymorphous onset; whether or not thi...
متن کاملDrug-induced torsade de pointes.
A73-year-old man with mild coronary artery disease and a dilated cardiomyopathy presented to the emergency room with a hemodynamically stable wide-QRS tachycardia. His 12-lead ECG revealed episodes of ventriculoatrial block, and a diagnosis of ventricular tachycardia (VT) was made (Figure 1). Intravenous procainamide restored sinus rhythm. Tachycardia recurred, and a second bolus of intravenous...
متن کاملMoxifloxacin-induced torsade de pointes
Torsade de pointes (TdP) is increasingly recognized as a complication of drug therapy. The most common cause of drug-induced QT prolongation is inhibition of the rapidly activating component of the delayed potassium current (IKr). Moxifloxacin, a widely used fluoroquinolone, is a weak IKr inhibitor and has been associated with QT prolongation. We report a case of marked QT prolongation (618 ms)...
متن کاملMethadone-induced Torsade de pointes tachycardias.
Methadone is a synthetic opioid frequently used in drug maintenance programs for heroin addicts. It prolongs the QT-interval and is mainly metabolized by the isoenzyme CYP3A4 of the hepatic cytochrome-P450-system, which is used by numerous other QT-prolonging agents. Its most severe side effect is the development of life-threatening Torsade de pointes ventricular tachycardia in the setting of a...
متن کاملRate smoothing with cardiac pacing for preventing torsade de pointes.
Cardiac pacing remains one of the most effective means for preventing torsade de pointes in patients with long QT syndrome (LQTS). However, fatal arrhythmias may occur despite combined therapy with beta blockers and pacing, and it is possible that failure of cardiac pacing for preventing arrhythmias in the long run is related (at least in part) to suboptimal pacemaker programming. Preventing su...
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ژورنال
عنوان ژورنال: Journal of the American College of Cardiology
سال: 2012
ISSN: 0735-1097
DOI: 10.1016/j.jacc.2012.02.086