Cycle Length Dependent Block in the “Mitral–Pulmonary Vein” Isthmus
- 1 September 2007
- journal article
- case report
- Published by Wiley in Pacing and Clinical Electrophysiology
- Vol. 30 (9) , 1174-1176
- https://doi.org/10.1111/j.1540-8159.2007.00834.x
Abstract
We report a case of cycle length dependent activation sequence in the coronary sinus catheter during assessment of mitral‐pulmonary vein isthmus block. A 61‐year‐old patient presented with atrial tachycardia following a recent pulmonary vein isolation for paroxysmal atrial fibrillation. A perimitral macroreentrant atrial tachycardia was demonstrated during mapping. The isthmus block observed following initial ablation of the mitral‐pulmonary vein appeared to be pacing cycle dependent and to our knowledge has not been previously described.Keywords
This publication has 9 references indexed in Scilit:
- Catheter Ablation of Long‐Lasting Persistent Atrial Fibrillation: Clinical Outcome and Mechanisms of Subsequent ArrhythmiasJournal of Cardiovascular Electrophysiology, 2005
- Left Mitral Isthmus Ablation Associated with PV Isolation: Long‐Term Results of a Prospective Randomized StudyJournal of Cardiovascular Electrophysiology, 2005
- Prevention of Iatrogenic Atrial Tachycardia After Ablation of Atrial FibrillationCirculation, 2004
- Technique and Results of Linear Ablation at the Mitral IsthmusCirculation, 2004
- Efficacy of Repeat Pulmonary Vein Isolation Procedures in Patients with Recurrent Atrial FibrillationJournal of Cardiovascular Electrophysiology, 2004
- Acute Effects of Left Atrial Radiofrequency Ablation on Atrial FibrillationJournal of Cardiovascular Electrophysiology, 2004
- Intrahisian Functional Bundle Branch BlockPacing and Clinical Electrophysiology, 1982
- Second degree His-Purkinje block during his bundle pacingThe American Journal of Cardiology, 1978
- Time dependent changes in the functional properties of the atrioventricular conduction system in man.Circulation, 1975