This ectopic focus becomes the predominant pacemaker of the heart. When the atrial rate is greater than 100 beats per minute, the rhythm is ... depend on the ventricular rate and the duration ...

Various arrhythmias — including atrial fibrillation, atrial flutter, and ventricular rhythms such as ventricular tachycardia or ventricular fibrillation — are discussed in detail in their ...

Pacemaker implantation ... resulted in only transient sinus rhythm. Amiodarone was started and sinus rhythm was achieved, but recurrences of AF and type I atrial flutter required further DC ...

AF-CHF = Atrial Fibrillation and Congestive Heart Failure; AFFIRM = Atrial Fibrillation Follow-up Investigation of Rhythm Management ... LVEF = left ventricular ejection fraction; WMI = wall ...

No episodes of cardiac rhythm disturbance were noted ... induction of a tachycardia with a cycle length equal to the atrial pacing cycle length (ventricular tachycardiaorsupraventricular ...

Patients requiring a pacemaker often have atrial fibrillation (AF), which increases the risk of thromboembolism and, consequently, the risk of morbidity and mortality. To maintain sinus rhythms ...

Medically reviewed by Yasmine S. Ali, MD, MSCI Bigeminy is an irregular heart rhythm where every normal beat is followed by ...