Ventricular Arrhythmias

Ventricular Arrhythmias.

Ventricular tachycardia (VT) is the most common form of wide complex tachycardia and is associated with a high mortality rate. Electrocardiographic analysis remains paramount in diagnosis and helps to direct therapy. Antiarrhythmic agents, although effective in reducing arrhythmia burden, have never demonstrated a mortality benefit. The implantable cardioverter-defibrillator aids not only in th...

Treatment of Ventricular Arrhythmias

Re-entrant Ventricular Arrhythmias

Retrograde atrial preexcitation following premature ventricular beats during reciprocating tachycardia in the Wolff-Parkinson-White syndrome. Eur J Cardiol 3: 283, 1975 28. Rosen KM, Denes P, Wu D, Dhingra RC: Electrophysiological diagnosis and manifestation of dual A-V nodal pathways. In Conduction System of the Heart, edited by Wellens HJJ, Lie H, Janse MJ. The Netherlands, H.E. Stenfert Kroe...

Reentrant Ventricular Arrhythmias

The effect of the autonomic system on conduction disorders in the infarction zone (IZ) and related reentrant ventricular arrhythmias (RVA) in the late myocardial infarction period in the dog was studied utilizing averaged recordings of the reentrant pathways from the epicardial surface of the IZ. Vagal (V) stimulation was found to have no significant direct electrophysiologic effect while sympa...

Fascicular Ventricular Arrhythmias

Ventricular arrhythmias involving the fascicular system may be seen in both structurally normal and abnormal hearts. Idiopathic fascicular ventricular tachycardia represents almost 10% to 15% of idiopathic ventricular tachycardia related to the left ventricle. Cohen et al and subsequently Zipes et al first described these arrhythmias in the 1970s as relatively narrow right bundle left axis arrh...