Arrhythmias & electrophysiology
Risk of atrial arrhythmias in patients with ventricular tachycardia in arrhythmogenic right ventricular cardiomyopathy
Authors' conclusion
AAs are common in patients with ARVC and VT, can result in inappropriate implantable cardioverter-defibrillator shocks, and typically are controlled with atrial ablation.
Study context
- Population
- Patients with arrhythmogenic right ventricular cardiomyopathy (ARVC) undergoing ventricular tachycardia (VT) ablation
- Participants
- 119 consecutive patients
- Outcome
- Type, prevalence, outcome and risk correlates of atrial arrhythmias
Methodological detailsconsecutive patients
- Consecutive patients
Main finding
As reported in the abstract
Atrial arrhythmias (AA)
Any AA
40
34%
Atrial fibrillation (AF)
31
Typical isthmus-dependent atrial flutter (AFL)
27
Atrial tachycardia/atypical flutter (AT)
10
Observational data: associations, not effects.
Further findings
Atrial ablation in patients with AA · mean follow-up of 65 months
- Ablation for typical AFL
- 21 (53%)
- Ablation for AT
- 5 (13%)
- Pulmonary vein isolation for AF
- 4 (10%)
- AA prevented
- 78%
- AFL prevented
- all
Risk score for typical AFL
- Age >40 years
- 1 point
- ≥moderate RV dysfunction
- 2 points
- ≥moderate tricuspid regurgitation
- 2 points
- ≥moderate right atrial dilation
- 2 points
- RV volume >250 cc
- 3points
- Score >4: prevalence of typical flutter
- 50%
- Derived from univariate logistic regression
Safety
Inappropriate defibrillator therapy in patients with AA
- Inappropriate defibrillator therapy
- 17 (43%)
- Shocks
- 15
Original publication
Risk of atrial arrhythmias in patients with ventricular tachycardia in arrhythmogenic right ventricular cardiomyopathy. Heart Rhythm. Published 11 November 2023. doi:10.
Composed by AI from the published abstract and checked against it. How Briefs are made →