Posted by: Johnson Francis on: 09 Jan, 2010
Slant can be used to uncover AP potential. Pathway potentials can be located by mapping aortic annulus just like the mapping of the mitral and tricuspid annulus. IVUS probe can be put in the artery close to the site of ablation. Look for bubbles on IVUS and terminate the ablation as soon as bubbles are [...]
Posted by: Johnson Francis on: 09 Jan, 2010
Epicardial fat makes it difficult to ablate epicardial accessory pathways by the epicardial route as the fat in the AV groove prevents ablation energy from reaching the pathways at the annulus. It is easier to ablate them through the coronary veins.
Posted by: Johnson Francis on: 04 Dec, 2009
Imaging of the atrium is needed during pulmonary vein isolation because of the variability in pulmonary venous architecture, to prevent complications like pulmonary vein stenosis, thromboembolic events, cardiac perforation/ tamponade and atrioeosphageal fistula. CARTO ultrasound is a new imaging system. ICE (intracardiac echocardiography) is combined with CARTO imaging in this system. ICE image can also [...]
Posted by: Johnson Francis on: 16 Nov, 2009
The success rate of ablation of left sided accessory pathways is over 95% and the recurrence rate is less than 5%. Most of the recurrences occur within two weeks, though it can occur as late as 6 months after the ablation. Even if it recurs early, it is not advisable to re-ablate within two months. [...]
