Please click here to obtain permission to reproduce this image.
Click on image to view larger version.
Figure 6 Magnetic catheter recordings in a patient with Wolff-Parkinson-White syndrome. The magnetic catheter was introduced into the left atrium by a trans-septal sheath and directed onto the site of a left posterolateral accessory pathway. The right anterior oblique (left) and left anterior oblique (right) projections are shown of the magnetic catheter positioned at the accessory pathway recording site. Catheters are also shown recording from the right ventricular apex, the His bundle recording site, and within the coronary sinus. Electrogram recordings were made with the magnetic catheter at the accessory pathway site during sinus rhythm and during orthodromic atrioventricular re-entrant tachycardia. Concurrent proximal His (pHis) and distal His (dHis) readings are shown. The vertical scale is 3 mV, and the vertical scale is 400 ms. NSR = normal sinus rhythm; SVT = supraventricular tachycardia.
|
