scholarly journals Catheter Ablation of Focal Atrial Tachycardia Originating From a Donor Heart After Bicaval Orthotopic Heart Transplantation Guided by a Noncontact Mapping System

2012 ◽  
Vol 53 (2) ◽  
pp. 146-148 ◽  
Author(s):  
Hitoshi Minamiguchi ◽  
Hiroya Mizuno ◽  
Masaharu Masuda ◽  
Yasushi Sakata ◽  
Shunsuke Saito ◽  
...  
Keyword(s):  
Catheter Ablation ◽  
Heart Transplantation ◽  
Atrial Tachycardia ◽  
Orthotopic Heart Transplantation ◽  
Donor Heart ◽  
Noncontact Mapping ◽  
Mapping System ◽  
Focal Atrial Tachycardia

Catheter ablation of focal atrial tachycardia in children using three-dimensional electroanatomic mapping system: a 6-year single-centre experience

2020 ◽  
pp. 1-7
Author(s):  
Gulhan Tunca Sahin ◽  
Hasan Candas Kafali ◽  
Erkut Ozturk ◽  
Alper Guzeltas ◽  
Yakup Ergul
Keyword(s):  
Radiofrequency Ablation ◽  
Catheter Ablation ◽  
Success Rate ◽  
Atrial Tachycardia ◽  
Three Dimensional ◽  
Electroanatomic Mapping ◽  
Electroanatomic Mapping System ◽  
Mapping System ◽  
Electrophysiological Procedures ◽  
Focal Atrial Tachycardia

Abstract Objective: This study demonstrates the clinical and electrophysiological details of catheter ablation conducted in children with focal atrial tachycardia using three-dimensional electroanatomic mapping systems. Patients and methods: Electrophysiological procedures were performed using the EnSite™ system. Results: Between 2014 and 2020, 60 children (median age 12.01 years [16 days–18 years]; median weight 41.5 kg [3–98 kg]) with focal atrial tachycardia and treated with catheter ablation were evaluated retrospectively. Tachycardia-induced cardiomyopathy was developed in 15 patients (25%). Most of the focal atrial tachycardia foci were right-sided (75%), and more than one focus was found in four patients. Radiofrequency ablation was performed in 47 patients (irrigated radiofrequency ablation in seven cases), cryoablation in 9, and radiofrequency ablation and cryoablation in the same session in 4 patients. The median procedural time was 163.5 minutes (82–473 minutes). Fluoroscopy was used in 29 of (48.3%) patients (especially for left-side substrate) with a mean time of 8.6 ± 6.2 minutes. The acute success rate was 95%. The procedure failed in three patients, and recurrence was observed in 3.5% of patients (2/57) during a median follow-up of 17 months (2–69 months). The second ablation was performed in four cases, of which three were successful. Overall success rate was 96.6% with no major complications observed, except in one patient with minimal pericardial effusion. Conclusion: Catheter ablation seems to be an effective and safe treatment in focal atrial tachycardia. Electroanatomic mapping system can facilitate the ablation procedure and minimise radiation exposure.

scholarly journals Successful Ablation for Atrial Tachycardia Originated from Sinus Venosa with Tachycardia-Induced Cardiomyopathy

2016 ◽  
Vol 2016 ◽  
pp. 1-4
Author(s):  
Sou Takenaka ◽  
Hideaki Sato ◽  
Mikio Yuhara ◽  
Takashi Uchiyama
Keyword(s):  
Heart Failure ◽  
Congestive Heart Failure ◽  
Catheter Ablation ◽  
Radiofrequency Catheter Ablation ◽  
Atrial Tachycardia ◽  
Interval Mapping ◽  
Noncontact Mapping ◽  
Successful Ablation ◽  
Mapping System ◽  
Tachycardia Induced Cardiomyopathy

A 74-year-old male suffering from congestive heart failure with atrial tachycardia (AT) with 2 : 1 atrioventricular conduction was admitted to our hospital. After the therapy with diuretics and β-blocker, his rapid AT was still sustained. He took the catheter ablation for his AT. Postpacing interval mapping from entrainment and noncontact mapping system revealed the mechanism of his AT, originated from sinus venosa. His AT was successfully terminated and eliminated by radiofrequency catheter ablation. After the successful ablation, he has been free from any AT, and his cardiac function was also improved.

Electrocardiogram Recognition and Ablation of Atrial Tachycardia

2011 ◽  
Vol 3 (1) ◽  
pp. 80
Author(s):  
Alexander Feldman ◽  
Jonathan M Kalman ◽  
◽  
Keyword(s):  
Catheter Ablation ◽  
Atrial Tachycardia ◽  
Primary Treatment ◽  
P Wave ◽  
Wave Morphology ◽  
Focal Atrial Tachycardia ◽  
Mapping Techniques ◽  
Electrocardiogram Ecg ◽  
Surface Electrocardiogram

Focal atrial tachycardia (AT) is a relatively uncommon cause of supraventricular tachycardia, but when present is frequently difficult to treat medically. Atrial tachycardias tend to originate from anatomically determined atrial sites. The P-wave morphology on surface electrocardiogram (ECG) together with more sophisticated contemporary mapping techniques facilitates precise localisation and ablation of these ectopic foci. Catheter ablation of focal AT is associated with high long-term success and may be viewed as a primary treatment strategy in symptomatic patients.

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