Characteristics of Macroreentrant Atrial Tachycardias Using an Anatomical Bypass: Pseudo‐Focal Atrial Tachycardia Case Series

2021 ◽  
Author(s):  
Yosuke Nakatani ◽  
Takashi Nakashima ◽  
Josselin Duchateau ◽  
Konstantinos Vlachos ◽  
Philipp Krisai ◽  
...  
Keyword(s):  
Atrial Tachycardia ◽  
Case Series ◽  
Focal Atrial Tachycardia

scholarly journals Ablation of focal atrial tachycardia from the non-coronary aortic cusp: case series and review of the literature

EP Europace ◽  
2014 ◽  
Vol 17 (6) ◽  
pp. 953-961 ◽  
Author(s):  
Rypko J. Beukema ◽  
Jaap Jan J. Smit ◽  
Ahmet Adiyaman ◽  
Lieve Van Casteren ◽  
Peter Paul H.M. Delnoy ◽  
...  
Keyword(s):  
Atrial Tachycardia ◽  
Case Series ◽  
Review Of The Literature ◽  
Aortic Cusp ◽  
Focal Atrial Tachycardia

scholarly journals Characteristics of Macroreentries Using an Epicardial Bypass: Pseudo-Focal Atrial Tachycardia Case Series

2021 ◽  
Author(s):  
Yosuke Nakatani ◽  
Takashi Nakashima ◽  
Josselin Duchateau ◽  
Konstantinos Vlachos ◽  
Philipp Krisai ◽  
...  
Keyword(s):  
Cycle Length ◽  
Atrial Tachycardia ◽  
Low Voltage ◽  
Therapeutic Option ◽  
Case Series ◽  
Electrophysiological Properties ◽  
Focal Atrial Tachycardia ◽  
The Mean ◽  
Bachmann Bundle ◽  
Endocardial Activation

Introduction: Human atria comprise distinct epicardial layers, which can bypass endocardial layers and lead to downstream centrifugal propagation at the “epi-endo” connection. We sought to characterize anatomical substrates, electrophysiological properties, and ablation outcomes of “pseudo-focal” atrial tachycardias (ATs), defined as macroreentrant ATs mimicking focal ATs. Methods and Results: We retrospectively analyzed ATs showing centrifugal propagation with post-pacing intervals (PPIs) after entrainment pacing suggestive of a macroreentry. A total of 26 patients had pseudo-focal ATs consisting of 15 perimitral, 7 roof-dependent, and 5 cavotricuspid isthmus (CTI)-dependent flutters. A low-voltage area was consistently found at the collision site and co-localized with epicardial layers like the: (1) coronary sinus-great cardiac vein bundle (22%); (2) vein of Marshall bundle (15%); (3) Bachmann bundle (22%); (4) septopulmonary bundle (15%); (5) fossa ovalis (7%); and (6) low right atrium (19%). The mean missing tachycardia cycle length (TCL) was 67 ± 29 ms (22%) on the endocardial activation map. PPI was 9 [0-15] ms and 10 [0-20] ms longer than TCL at the breakthrough site and the opposite site, respectively. While feasible in 25 pseudo-focal ATs (93%), termination was better achieved by blocking the anatomical isthmus than ablating the breakthrough site [24/26 (92%) vs. 1/6 (17%); p < 0.001]. Conclusion: Perimitral, roof-dependent, and CTI-dependent flutters with centrifugal propagation are favored by a low-voltage area located at well-identified epicardial bundles. Comprehensive entrainment pacing maneuvers are crucial to distinguish pseudo-focal ATs from true focal ATs. Blocking the anatomical isthmus is a better therapeutic option than ablating the breakthrough site.

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.

Failure of adenosine to terminate focal atrial tachycardia

1993 ◽  
Vol 14 (2) ◽  
pp. 119-121 ◽  
Author(s):  
Michael L. Epstein ◽  
Luiz Belardinelli
Keyword(s):  
Atrial Tachycardia ◽  
Focal Atrial Tachycardia

scholarly journals Focal Atrial Tachycardia Originating From the Right Atrial Appendage Masquerading as Inappropriate Sinus Tachycardia

2021 ◽  
Vol 3 (11) ◽  
pp. 1379-1381
Author(s):  
Fatemeh Adabifirouzjaei ◽  
Anthony Nicholas DeMaria ◽  
Gordon Ho
Keyword(s):  
Atrial Tachycardia ◽  
Sinus Tachycardia ◽  
Atrial Appendage ◽  
Right Atrial ◽  
Inappropriate Sinus Tachycardia ◽  
Focal Atrial Tachycardia ◽  
Right Atrial Appendage ◽  
The Right

Focal atrial tachycardia originating from the epicardial left atrial appendage

Heart Rhythm ◽  
2008 ◽  
Vol 5 (5) ◽  
pp. 766-767 ◽  
Author(s):  
Takumi Yamada ◽  
H. Thomas McElderry ◽  
J. Scott Allison ◽  
G. Neal Kay
Keyword(s):  
Left Atrial ◽  
Atrial Tachycardia ◽  
Left Atrial Appendage ◽  
Atrial Appendage ◽  
Focal Atrial Tachycardia

Focal Atrial Tachycardia Originating from the Musculature of the Coronary Sinus

2002 ◽  
Vol 13 (1) ◽  
pp. 68-71 ◽  
Author(s):  
MARIUS VOLKMER ◽  
MATTHIAS ANTZ ◽  
JOACHIM HEBE ◽  
KARL-HEINZ KUCK
Keyword(s):  
Coronary Sinus ◽  
Atrial Tachycardia ◽  
Focal Atrial Tachycardia

scholarly journals Ablation of Focal atrial Tachycardia—Demographics, Characteristics and Outcomes

2013 ◽  
Vol 22 ◽  
pp. S105
Author(s):  
F. Chahadi ◽  
T. Mathew ◽  
C. Singleton ◽  
B. Pathik ◽  
A. McGavigan
Keyword(s):  
Atrial Tachycardia ◽  
Focal Atrial Tachycardia
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