Idiopathic basal crux ventricular arrhythmias with left bundle branch block and superior axis: A comparison with inferior-septal valvular arrhythmias

Journal of Cardiovascular Electrophysiology
Mitsuharu KawamuraToshiro Shinke

Abstract

Left bundle branch block (LBBB) with superior axis is common in patients with idiopathic-ventricular arrhythmia (VA) originating from the tricuspid annulus (TA) and rarely from the cardiac basal crux and mitral annulus (MA). We described the electrocardiography and electrophysiological findings of idiopathic-VA presenting with LBBB and superior axis. We described 42 idiopathic-VA patients who had an LBBB and superior axis; 15 basal crux-VA, 17 TA-VA, and 10 MA-VA. No patient had a structural heart disease. Among patients with idiopathic-VA referred for ablation, we investigated the electrocardiogram and clinical characteristics of basal crux-VA as compared with other LBBB and superior axis-VA. The left ventricular ejection fraction with MA-VA was significantly lower in comparison with basal crux-VA (P = .01). All patients had a positive R wave in lead I and aVL. The maximum deflection index with basal crux-VA was significantly higher in comparison with TA-VA or MA-VA (P = .01). Patients with basal crux-VA presented with QS wave in lead II more frequently as compared with TA-VA or MA-VA (P = .001). All MA-VA patients had Rs wave in V6, and basal crux-VA, and TA-VA patients had a monophasic R wave or Rs wave in V6. Basal crux-VA ...Continue Reading

References

Sep 1, 1991·The American Journal of Cardiology·L M DavisD L Ross
Mar 10, 2001·Journal of Cardiovascular Electrophysiology·D Sánchez-QuintanaR H Anderson
Mar 16, 2005·Journal of the American College of Cardiology·Hiroshi TadaKoichi Taniguchi
Apr 27, 2005·Heart Rhythm : the Official Journal of the Heart Rhythm Society·Mark E Josephson, David J Callans
Sep 30, 2005·Journal of Cardiovascular Electrophysiology·Koji KumagaiKazutaka Aonuma
Mar 8, 2007·Heart Rhythm : the Official Journal of the Heart Rhythm Society·Rupa Bala, Francis E Marchlinski
Jan 6, 2009·Heart Rhythm : the Official Journal of the Heart Rhythm Society·Harish DoppalapudiG Neal Kay
Jan 27, 2009·International Journal of Cardiology·Shirley H El-MaasaranyMichael Y Henein
Mar 24, 2009·Journal of Cardiovascular Electrophysiology·Haris M HaqqaniJonathan M Kalman
Dec 7, 2010·Heart Rhythm : the Official Journal of the Heart Rhythm Society·Hugo Van HerendaelFrancis E Marchlinski
Aug 18, 2012·Pacing and Clinical Electrophysiology : PACE·Kyoung-Min ParkFrancis E Marchlinski
Feb 19, 2013·Heart Rhythm : the Official Journal of the Heart Rhythm Society·Kristina WasmerLars Eckardt
Mar 13, 2014·Journal of Cardiovascular Electrophysiology·Mitsuharu KawamuraMelvin M Scheinman
Sep 17, 2014·Circulation. Arrhythmia and Electrophysiology·Mitsuharu KawamuraNitish Badhwar

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Citations

Mar 29, 2021·Journal of Interventional Cardiac Electrophysiology : an International Journal of Arrhythmias and Pacing·Chengye DiWenhua Lin
Sep 3, 2021·Europace : European Pacing, Arrhythmias, and Cardiac Electrophysiology : Journal of the Working Groups on Cardiac Pacing, Arrhythmias, and Cardiac Cellular Electrophysiology of the European Society of Cardiology·Timothy R LarsenSantosh K Padala

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