Category: ECG / Electrophysiology

ECG showing left bundle branch block.

Newer drugs for treatment of AF: vernakalant, Newer class III agents, blockers of Na-Ca channel, stretch receptors, IKACh and gap junction modifiers.

Assessment of atrial repolarization on surface ECG is difficult as it is obscured by the QRS complex during sinus rhythm.

Atrial scarring and arrhythmias following an atrial based repair of TGAs is an important concern which made arterial switch as the better choice.

Adults with repaired tetralogy of Fallot can develop ventricular tachyarrhythmias and die suddenly. They are prone for VT and AF/AFL.

Ventricular fibrillation - ECG

Heart rate and blood pressure response in to head up tilt test in neurocardiogenic syncope has been classified into types I to III.

Intracardiac electrograms are recordings of electrical activity within various chambers of the heart using multipolar electrodes placed inside the heart.

Devices in heart failure include implantable cardioverter defibrillator, cardiac resynchronization therapy and combo devices.

Reverse remodeling with CRT is associated with a significant risk reduction for life threatening ventricular arrhythmias.