Atrial tachycardia originating from the aortomitral junction.

Yonsei Med J

Division of Cardiology, Department of Internal Medicine, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul 120-752, Korea.

Published: March 2014

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.

Download full-text PDF

Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3936642PMC
http://dx.doi.org/10.3349/ymj.2014.55.2.530DOI Listing

Publication Analysis

Top Keywords

aortomitral junction
12
atrial tachycardia
8
tachycardia originating
8
originating aortomitral
8
arrhythmic characteristics
8
junction atrial
4
junction rare
4
rare challenging
4
challenging disease
4
disease arrhythmic
4

Similar Publications

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 PDF
Article Synopsis
  • * A study analyzed 22 patients who underwent this procedure, revealing a 30-day mortality of 13.6% and estimated 1- and 3-year survival rates of 77.5% and 66.4%, respectively.
  • * Results indicate that the Hemi-Commando procedure can provide acceptable survival rates and low chances of needing further surgeries, making it a viable choice for patients with complex IE and significant complications.
View Article and Find Full Text PDF

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 PDF

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 PDF

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.

View Article and Find Full Text PDF

Want AI Summaries of new PubMed Abstracts delivered to your In-box?

Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!