Incidence of Atrial Fibrillation After Radiofrequency Catheter Ablation for Atrial Tachycardia in Congenital Heart Disease.
JACC Clin Electrophysiol
; 10(6): 1050-1060, 2024 Jun.
Article
in En
| MEDLINE
| ID: mdl-38613544
ABSTRACT
BACKGROUND:
Atrial tachycardia (AT) and atrial fibrillation (AF) coexist in 30% of congenital heart disease (CHD) patients. Successful atrial tachycardia catheter ablation (ATCA) might prevent AF. Data on new-onset AF after ATCA in CHD is scarce.OBJECTIVES:
This study aimed to evaluate the incidence of new-onset AF after ATCA and to assess clinical characteristics associated with new-onset AF after ATCA in CHD.METHODS:
CHD patients referred for ATCA to 3 European centers were included. New occurrence of AF was defined as electrocardiographic documentation of AF after any ATCA procedure in patients without history of AF.RESULTS:
In 277 CHD patients (median age 37 years [Q1, Q3 23, 49 years], 58% men, 59 [21%] simple, 111 [40%] moderate, and 107 [39%] complex CHD), AF occurred in 25 patients (9%) a median of 8 months (Q1, Q3 4, 27 months) after ATCA. New-onset AF was persistent in the majority of the patients (17 of 25 [63%]). Patients with new-onset AF were older (44 years [Q1, Q3 29, 55 years] vs 36 years [Q1, Q3 23, 49 years]; P = 0.009) and more frequently had simple CHD (13 of 25 [52%] vs 46 of 252 [18%], respectively; P < 0.0001). Acute ATCA success rates were similar in patients with and without AF (52% vs 48%; P = 0.429). Simple CHD was an independent predictor of new-onset AF during follow-up.CONCLUSIONS:
In our large cohort of patients with congenital heart disease, new-onset AF after ablation for AT occurred in only 9% of the patients. AF occurred without AT recurrence and was persistent in the majority of patients.Key words
Full text:
1
Database:
MEDLINE
Main subject:
Atrial Fibrillation
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Catheter Ablation
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Heart Defects, Congenital
Limits:
Adult
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Female
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Humans
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Male
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Middle aged
Language:
En
Year:
2024
Type:
Article