Posted by: Johnson Francis on: 16 Nov, 2008
Anomalous extra nodal connections between atrium and ventricle along the AV groove are called accessory pathways. They can cause atrioventricular reentrant tachycardia (AVRT) Initial localisation of the accessory pathway is based on the delta wave and QRS morphology on surface ECG. Right sided and posteroseptal pathways are ablated using catheter positioned along the tricuspid annulus [...]
Posted by: Johnson Francis on: 16 Nov, 2008
Supraventricular tachycardias are quite common in clinical cardiology practice. Medical treatment of supraventricular tachycardias involves regular intake of drugs for several years. Poor efficacy and bothersome side effects of drugs, including proarrhythmia can be a problem. Arrhythmia surgery has largely been replaced by catheter ablation. Catheter ablation be defined as the sse of an electrode [...]
Posted by: Johnson Francis on: 14 Nov, 2008
Electrophysiology (EP) catheters are shown in left anterior oblique view. The surface ECG electrodes are marked with yellow arrows. The decapolar catheter is situated in the coronary sinus and has been introduced from above using a jugular vein puncture. The electrodes are numbered from 1 – 10 in a distal to proximal fashion so that the [...]
