Open AccessJunctional rhythm occurring during AV nodal reentrant tachycardia ablation, is it different among Egyptians?
Author(s) -
Ayman M. Abdel Moteleb,
Said Abd-El-Hafeez Khalid,
Mokhtar Ibrahim
Publication year - 2013
Publication title -
the egyptian heart journal /the egyptian heart journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.212
H-Index - 9
eISSN - 2090-911X
pISSN - 1110-2608
DOI - 10.1016/j.ehj.2013.02.001
Subject(s) - junctional rhythm , ablation , medicine , tachycardia , nodal , supraventricular tachycardia , sinus rhythm , atrioventricular node , catheter ablation , cardiology , electrophysiology , radiofrequency ablation , atrial fibrillation
Radio frequency ablation of the slow pathway has become first-line therapy for the elimination of AV nodal reentrant tachycardia (AVNRT). Slow pathway ablation is guided by a combination of fluoroscopic landmarks, electrogram morphology, and the induction of accelerated junctional rhythm (JR) during the application of radiofrequency energy. Although JR occurs usually during slow pathway ablation of AVNRT, the pattern of JR has not been adequately studied.13Aim of the studyTo investigate in detail the characteristics of junctional rhythm occurring during radiofrequency ablation of atrioventricular nodal reentrant tachycardia AVNRT among Egyptians.MethodsThis study included 30 patients who underwent electrophysiological study for narrow complex supraventricular regular tachycardia which revealed to be AVNRT.ResultsThirty (100%) patients showed induction of junctional rhythm at the successful ablation sites. JR was a very sensitive predictor of successful ablation but not so specific with specificity of 60%. Sex patterns of JR were observed. The most common pattern of JR was sinus–junctional–junctional (SJJ) while sinus–junctional-block (SJB) was the least. The most specific pattern for effective ablation was junctional–junctional–junctional (JJJ), while intermittent burst was the least. P value is 0.001 i.e. highly significant.ConclusionJunctional rhythm is a sensitive predictor of successful ablation. The pattern of JR is a useful predictor of successful ablation. Egyptian population has distinctive patterns of JR during AVNRT ablation