Left ventricular (LV) summit: boundaries, anatomic landmarks, typical ECG morphologies. LV summit the superior portion the LV (star, B) an important anatomic landmark it the region the epicardial surface, the left main coronary artery (LMCA) bifurcates is recognized the commonest source idiopathic .
This region the highest portion the LV epicardium, the bifurcation the left main coronary artery (LMCA), accounts up 14.5% LV VAs. 2 complex relationships the left ventricular summit (LVS) surrounding structures underscore importance understanding anatomy this region the of .
The image shows successful ablation an LVS PVC the LV subvalvular endocardium the LCC. A) image shows baseline ECG 2 PVCs. second PVC a clinical PVC (marked the arrow) an RBBB pattern, right inferior axis, a QS pattern lead I.
Three months later, patient asymptomatic the 24-hour ambulatory ECG monitoring showed PVC burden 0.1% any antiarrhythmic agent. Figure 4: . performed stepwise catheter ablation the LV-summit PVC origin site adjacent severe coronary artery stenosis a 3D electroanatomic mapping system a single case .
LV 32 (14.5%) (LV ostium 27 crux 5), mitral annulus 33 (14.9%), fascicles the left bundle-branch 40 (18.1%), papillary muscles 23 (10.4%), other sites 5 (2.3%). subjects the present study the 27 patients (13 men, 46 11 years, 24 70) a site the VA origin the epicardial LV
Deductive Electrocardiographic Analysis of Left Ventricular Summit
Muser Santangeli; Ablation LV Summit Communicating Vein VAs Circ Arrhythm Electrophysiol. 2018;11:e006105. DOI: 10.1161/CIRCEP.117.006105 January 2018 4 . institution, the decision map summit-CV discretional. ECG characteristics summit-CV arrhythmias reflected origin the posterior
The PVC displayed QRS duration 148 ms, QS pattern lead I, maximum deflection index 0.8, intrinsicoid deflection time 52 ms, an aVL/aVR Q-wave ratio 1.6. features suggestive an epicardial origin the LV outflow tract (ie, LV summit).
Background: early precordial electrocardiographic (ECG) characteristics useful differentiate left-sided the right-sided outflow tract ventricular arrhythmia (OTVA), patterns predict origin the septal margin the left ventricular (LV) summit. Objective: purpose this study to report mapping ablation characteristics a ECG pattern left .
ABSTRACT. left ventricular (LV) summit the usual source epicardial idiopathic premature ventricular contractions (PVCs).A 56-year-old male patient presented the cardiology outpatient clinic palpitations dyspnea. Twelve-lead electrocardiography performed admission revealed monomorphic PVCs precordial QRS transition the V1 derivation an rS pattern the D1 .
laboratory istheapproach toVAs arising fromthe summit the left ventricle (LV). region the highest portion the LV epicardium, the bifurcation the left main coronary artery (LMCA), accounts up 14.5% LV VAs.2 complex relationships the left ventricular summit (LVS) surrounding structures under-
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