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Usefulness of a crista catheter for 3-dimensional electroanatomical mapping of complex right atrial tachyarrhythmias

 Jae-Sun Uhm  ;  Nam Kyun Kim  ;  Hancheol Lee  ;  Tae-Hoon Kim  ;  Boyoung Joung  ;  Hui-Nam Pak  ;  Moon-Hyoung Lee 
 Journal of Interventional Cardiac Electrophysiology, Vol.44(2) : 141-149, 2015 
Journal Title
 Journal of Interventional Cardiac Electrophysiology 
Issue Date
PURPOSE: Right atrial (RA) tachyarrhythmias are not rare in patients with congenital heart disease and a history of cardiac surgery. This study investigated the usefulness of a crista catheter for 3-dimensional electroanatomical mapping of RA tachyarrhythmias. METHODS: We consecutively included 35 patients (age, 43.2 ± 15.6 years; 15 men) who underwent an electrophysiological study with 3-dimensional electroanatomical mapping for RA tachycardia or flutter. In 13 patients with atrial flutter, we recorded and compared the electrical sequence in the anterior and posterior portions of the RA lateral wall. We used a crista catheter as a mapping catheter for 3-dimensional mapping in 12 patients (crista group), a lasso catheter in 12 patients (lasso group), and an ablation catheter in 11 patients (ablation group). We compared the 3-dimensional mapping points, time, and speed (mapping points per minute) among the groups. RESULTS: Atrial flutter was confirmed as cavotricuspid isthmus-dependent in all patients whose two atrial electrical sequences were the same direction and as atypical (including scar-related and dual-loop) in all patients whose sequences were in the opposite direction. Mapping speed in the crista group was significantly faster than in the lasso and ablation groups: median (interquartile range) 44.0 (35.5-69.4) points/min, 23.7 (17.8-29.8) points/min, and 8.2 (4.8-11.0) points/min, respectively (p = 0.001). CONCLUSIONS: A crista catheter is useful for high-density 3-dimensional electroanatomical mapping of complex RA tachyarrhythmias. Comparison of the electrical sequences in the anterior and posterior portions of the RA lateral wall is helpful for differentiating between cavotricuspid isthmus-dependent and atypical atrial flutter.
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1. College of Medicine (의과대학) > Dept. of Internal Medicine (내과학교실) > 1. Journal Papers
1. College of Medicine (의과대학) > Dept. of Pediatrics (소아청소년과학교실) > 1. Journal Papers
Yonsei Authors
김남균(Kim, Nam Kyun)
김태훈(Kim, Tae-Hoon) ORCID logo https://orcid.org/0000-0003-4200-3456
박희남(Pak, Hui Nam) ORCID logo https://orcid.org/0000-0002-3256-3620
엄재선(Uhm, Jae Sun) ORCID logo https://orcid.org/0000-0002-1611-8172
이문형(Lee, Moon Hyoung) ORCID logo https://orcid.org/0000-0002-7268-0741
이한철(Lee, Han Cheol)
정보영(Joung, Bo Young) ORCID logo https://orcid.org/0000-0001-9036-7225
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