![]() ![]() J Cardiovasc Electrophysiol 10(11):1525–1533Ĭabrera JA, Ho SY, Climent V, Fuertes B, Murillo M, Sánchez-Quintana D (2009) Morphological evidence of muscular connections between contiguous pulmonary venous orifices: relevance of the interpulmonary isthmus for catheter ablation in atrial fibrillation. Ho SY, Sanchez-Quintana D, Cabrera JA, Anderson RH (1999) Anatomy of the left atrium: implications for radiofrequency ablation of atrial fibrillation. Saoudi N, Latcu DG (2010) Intra-isthmus reentry: another form of typical atrial flutter? J Cardiovasc Electrophysiol 21(10):1107–1108 Gami AS, Edwards WD, Lachman N, Friedman PA, Talreja D, Munger TM, Hammill SC, Packer DL, Asirvatham SJ (2010) Electrophysiological anatomy of typical atrial flutter: the posterior boundary and causes for difficulty with ablation. Saremi F, Muresian H, Sánchez-Quintana D (2012) Coronary veins: comprehensive CT-anatomic classification and review of variants and clinical implications. Circ Arrhythm Electrophysiol 5(1):220–228 Ho SY, Cabrera JA, Sanchez-Quintana D (2012) Left atrial anatomy revisited. Sánchez-Quintana D, López-Mínguez JR, Macías Y, Cabrera JA, Saremi F (2014) Left atrial anatomy relevant to catheter ablation. Ho SY, Sánchez-Quintana D (2009) The importance of atrial structure and fibers. J Cardiovasc Electrophysiol 20(1):113–122Ĭabrera JA, Ho SY, Sánchez-Quintana D (2009) How anatomy can guide ablation in isthmic atrial flutter. J Cardiovasc Electrophysiol 8(12):1396–1407Īsirvatham SJ (2009) Correlative anatomy and electrophysiology for the interventional electrophysiologist: right atrial flutter. Sanchez-Quintana D, Davies DW, Ho SY, Oslizlok P, Anderson RH (1997) Architecture of the atrial musculature in and around the triangle of Koch: its potential relevance to atrioventricular nodal reentry. Sánchez-Quintana D, Cabrera JA, Farré J, Climent V, Anderson RH, Ho SY (2005) Sinus node revisited in the era of electroanatomical mapping and catheter ablation. Interatrial block and supraventricular arrhythmias. Sánchez-Quintana D, Anderson RH, Cabrera JA, Climent V, Martin R, Farré J, Ho SY (2002) The terminal crest: morphological features relevant to electrophysiology. Sánchez-Quintana D, Doblado-Calatrava M, Cabrera JA, Macías Y, Saremi F (2015) Anatomical basis for the cardiac Interventional electrophysiologist. JR appears in most cases without causing AVCD, unless the rate is high.Ĭatheter ablation His-bundle Junctional rhythm Right ventricle Tricuspid annulus Ventricular arrhythmia.Cabrera JA, Sánchez-Quintana D (2013) Cardiac anatomy: what the electrophysiologist needs to know. VA originating from the basal septum of the RV can be ablated effectively. All these patients were free from VA during 32 ± 21 months. Among 11 patients with successful ablation, 10 (91 %) exhibited JR (mean cycle length, 638 ± 172 ms) during ablation without subsequent atrioventricular conduction disturbance (AVCD) except for one showing high-rate JR (181 beats/min) and transient AVCD. The successful ablation site was 12 ± 4 mm away from the His-bundle electrogram recording site. Complete elimination of VA was achieved in 11 (92%) patients. Radiofrequency energy was applied to the sites showing the earliest activation during VA and/or best pacemap. Five patients (41%) had structural heart diseases including three dilated cardiomyopathies. A mean QRS duration of VA was 137 ± 8 msec with normal (10/12, 83%) or left-deviated axis (2/12, 17%). We aimed to describe the ablation procedure and results, focusing on the characteristics and clinical significance of junctional rhythm (JR) appearing during radiofrequency application.Īmong 86 consecutive patients undergoing radiofrequency ablation for VA from the RV, 12 (14%) (mean age, 71 ± 7 years) had their origin in the basal septum of the RV defined as the region from 1 to 5 o'clock of the tricuspid annulus (TA) in the left anterior oblique view and extending anteriorly from the TA to 2 cm. Experiences of VA arising from the basal septum of the right ventricle (RV) are limited. Most right ventricular arrhythmias (VA) originate from the outflow tract. ![]()
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