| Autor: |
Castellanos, Agustin, Portillo, Bolivar, Mejias, Jose, Leon-Portillo, Nelly, Saoudi, Nadir C., Zaman, Liaqat |
| Zdroj: |
Journal of the American College of Cardiology; December 1985, Vol. 6 Issue: 6 p1431-1437, 7p |
| Abstrakt: |
An unusual case is presented in which a circus movement tachycardia incorporating an accessory pathway with long retrograde conduction time was transiently entrained. Overdrive high right atrial stimulation produced entrainment without atrial fusion since collision of anterograde and retrograde impulses took place within the accessory pathway. Tachycardia termination occurred when, at a faster pacing rate, an atrial impulse that collided in the accessory pathway was blocked at the atrioventricular (AV) node. In contrast, the entrainment seen during right ventricular apical stimulation was characterized by the occurrence of both fusion and collision within the ventricles. The tachycardia was terminated when a pure paced impulse that collided in the normal pathway was blocked in a retrograde direction in the accessory pathway. |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
|
