Catheter ablation of focal atrial tachycardia:the topographic distribution and long-term outcome / 中华心血管病杂志
Chinese Journal of Cardiology
;
(12): 231-236, 2012.
Article
in Chinese
| WPRIM
| ID: wpr-275070
ABSTRACT
<p><b>OBJECTIVE</b>To explore the topographic distribution and long-term outcome of catheter ablation for focal atrial tachycardia (AT).</p><p><b>METHOD</b>The data of 207 patients who underwent electrophysiologic study for AT were retrospectively analyzed.</p><p><b>RESULTS</b>A total of 200 AT were identified in 185 patients. The most common site for AT was ostium of the coronary sinus (23.8%), followed by crista terminalis (20.5%), perinodal area (20.0%), cava vena (17.8%), annulus (13.0%), and appendage (10.3%). Eighty percent AT originated from the right atrium, 17.8% originated from the left atrium. AT originated from the left atrium was more common in male than in female (25.0% vs. 13.3%, P = 0.042), while AT originated from the right atrium was more common in female than in male (69.4% vs. 86.7%, P = 0.004). Among the 185 patients, acute success ablation rate was 93.5% (n = 173). The acute success rate in the conventional mapping group was lower than that in the three-dimensional mapping group (79.3% vs. 96.5%, P < 0.01). During a median of 36 months follow up, the AT recurred in 20 patients (success ablation rate 88.4%). Success ablation rate was similar between the conventional mapping group and the three-dimensional mapping group (P > 0.05).</p><p><b>CONCLUSIONS</b>Focal AT commonly originates from ostium of coronary sinus, crystal terminalis, perinodal area, and cava veins. There is a gender related difference in the distribution of focal AT. The radiofrequency catheter ablation yields a satisfying success rate and very low complication rate and could be the first line choice for treating ATs in experienced electrophysiological center.</p>
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Pathology
/
General Surgery
/
Tachycardia, Ectopic Atrial
/
Retrospective Studies
/
Catheter Ablation
Type of study:
Observational study
Limits:
Adolescent
/
Adult
/
Aged
/
Child
/
Female
/
Humans
/
Male
Language:
Chinese
Journal:
Chinese Journal of Cardiology
Year:
2012
Type:
Article
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