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- Title
Double Response of the Ventricle During Transient Entrainment in a Common Atrioventricular Nodal Reentrant Tachycardia.
- Authors
Shimizu, Akihiko; Fukatani, Masahiko; Centurion, Osmar A.; Konoe, Atsushi; Isomoto, Shojiro; Kaibara, Muneshige; Yano, Katsusuke
- Abstract
We report a patient with slow-fast atrioventricular (AV) nodal reentrant tachycardia, in which double ventricular response was demonstrated during rapid pacing at cycle length of 300 msec or less from the high right atrium. The determinants of double ventricular response during transient entrainment in the present case were: (1) a crucial conduction delay in the slow pathway; (2) the collision between the activation via the antegrade fast pathway (antidromically) of the last paced beat and the activation via the antegrade slow pathway (orthodromically) of the previous paced beat, instead of the unidirectional block in the slow pathway; and (3) the enhanced AV nodal conduction over the antegrade fast pathway.
- Subjects
HEART ventricles; TACHYCARDIA; ATRIOVENTRICULAR node; HEART conduction system; CARDIAC pacing; CARDIOLOGY
- Publication
Pacing & Clinical Electrophysiology, 1993, Vol 16, Issue 1, p39
- ISSN
0147-8389
- Publication type
Article
- DOI
10.1111/j.1540-8159.1993.tb01533.x