and for conversion of AF to normal sinus rhythm. It is contraindicated in patients with long QT syndromes. Ibutilide can be used as a one-time intravenous infusion for pharmacologic cardioversion ...

and prolonged sinus pauses after AF termination, which is also known as tachycardia-bradycardia syndrome. When antiarrhythmic drugs (AADs) are administered for rhythm or ventricular rate control ...

[1] Bradycardia or bradyarrhythmia in adults may be considered present if the heart rate is <60 beats/min in the setting of sinus ... long intervals, nonsustained ventricular tachycardia, QT ...

Ventricular tachycardia refers to a wide QRS complex heart rhythm — that is ... Patients with a prolonged QT interval have a higher risk for developing polymorphic VT. Removing offending ...