Atrial tachycardia (AT) originating from the aortomitral junction is a very rare and challenging disease. Its arrhythmic characteristics have not been described in detail compared with the descriptions of the arrhythmic characteristics of AT originating from the other locations. Only a few case reports have documented successful ablation of this type of AT using transaortic or transseptal approaches. We describe a case with AT that was resistant to right-sided ablation near the His bundle failed and transaortic ablation at the aortomitral junction successfully eliminated.
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http://dx.doi.org/10.3349/ymj.2014.55.2.530 | DOI Listing |
Cardiol Young
May 2024
Department of Pediatric Cardiology, Kocaeli City Hospital, Kocaeli, Turkey.
Objective: The left ventricular outflow tract is an important source of ventricular arrhythmias. Up to one-third of all idiopathic ventricular arrhythmias in patients with structurally normal hearts may arise from this region. We would like to share the results of our left ventricular outflow tract ablation using three-dimensional mapping and limited fluoroscopy.
View Article and Find Full Text PDFEur J Cardiothorac Surg
July 2023
University Department of Cardiac Surgery, Leipzig Heart Center, Leipzig, Germany.
J Clin Med
October 2022
Department of Cardiology, Tongji Hospital, Tongji University School of Medicine, No. 389 Xincun Road, Shanghai 200065, China.
Several electrocardiographic algorithms have been proposed to identify the site of origin for the ventricular arrhythmias (VAs) from the left ventricular outflow tract (LVOT) versus right ventricular outflow tract. However, the electrocardiographic criteria for distinguishing VAs originated from the different sites of LVOT is lacking. We aimed to develop a simple and efficient ECG algorithm to differentiate LVOT VAs originated from the aortic root, AMC and LV summit.
View Article and Find Full Text PDFAnn Biomed Eng
April 2023
Department of Cardiothoracic Surgery, Stanford University, Stanford, CA, USA.
Systolic anterior motion (SAM) of the mitral valve (MV) is a complex pathological phenomenon often occurring as an iatrogenic effect of surgical and transcatheter intervention. While the aortomitral angle has long been linked to SAM, the mechanistic relationship is not well understood. We developed the first ex vivo heart simulator capable of recreating native aortomitral biomechanics, and to generate models of SAM, we performed anterior leaflet augmentation and sequential undersized annuloplasty procedures on porcine aortomitral junctions (n = 6).
View Article and Find Full Text PDFCirc Arrhythm Electrophysiol
August 2019
Division of Cardiovascular Disease, University of Alabama at Birmingham.
Background: Idiopathic ventricular arrhythmias (VAs) originating from the left ventricular summit (LVS) can be ablated from the great cardiac vein and remote endocardial sites. The ablation sites are determined by mapping in the great cardiac vein and left ventricular outflow tract. This study investigated whether that mapping could accurately predict the sites of LVS-VA origins.
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