Catheter ablation of atrial fibrillation in hypertrophic cardiomyopathy: A proportional meta-analysis and systematic review of single-arm studies

Latif, Azka; Ahmad, Soban; Ahsan, Muhammad Junaid; Willman, Claire; Lateef, Noman; Kapoor, Vikas; Ikram, Sundus; Ahsan, Mohammad Zoraiz; Meyers, Jason D.; Kim, Michael

doi:10.1016/j.hroo.2023.01.002

Heart Rhythm O2

2023

DOI: 10.1016/j.hroo.2023.01.002

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Catheter ablation of atrial fibrillation in hypertrophic cardiomyopathy: A proportional meta-analysis and systematic review of single-arm studies

Azka Latif¹,

Soban Ahmad²,

Muhammad Junaid Ahsan³

et al.

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Cited by 4 publications

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Clinical and pathophysiologic determinants of catheter ablation outcome in hypertrophic cardiomyopathy with atrial fibrillation

Lee,

Cho,

Choi

et al. 2024

Journal of Arrhythmia

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BackgroundHypertrophic cardiomyopathy (HCM) is frequently associated with atrial fibrillation (AF). We compared clinical, echocardiographic, and electrophysiological parameters between HCM subtypes and those without HCM at AF catheter ablation (AFCA) and analyzed post‐AFCA reverse remodeling and AF recurrence based on HCM presence and subtype.MethodsAmong 5161 consecutive patients who underwent de novo AFCA, we included HCM patients and control patients who were age‐, gender‐, and AF type‐matched. Between AF‐HCM patients and controls, we compared baseline values for left atrium (LA) wall thickness (LAWT), reverse remodeling at 1‐year follow‐up, and procedural outcomes over the course of follow‐up between two groups.ResultsA total of 122 AF‐HCM patients and 318 control patients were included. AF‐HCM patients had more frequent heart failure and higher LA diameter, E/Em, and LA pressure (all, p < .001). However, LAWT did not differ from control group. A year after AFCA, degree of LA reverse remodeling was significantly lower in AF‐HCM than in control group (ΔLA dimension, p = .025). Nonapical HCM (HR 1.71; 95% CI 1.05–2.80), persistent AF (HR 1.46; 95% CI 1.05–2.04), and LA dimension (HR 1.04; 95% CI 1.01–1.06) were independent risk factors for AF recurrence. During 78.0 months of follow‐up, nonapical HCM patients showed higher AF recurrence rate than both apical HCM (log‐rank p = .005) and control patients (log‐rank p = .002).ConclusionsThe presence of HCM, particularly nonapical HCM, displayed increased LA hemodynamic loading with diastolic dysfunction and had poorer rhythm outcomes after AFCA compared to both apical HCM and control group.

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Clinical and pathophysiologic determinants of catheter ablation outcome in hypertrophic cardiomyopathy with atrial fibrillation

Lee,

Cho,

Choi

et al. 2024

Journal of Arrhythmia

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From Atrial Fibrillation Management to Atrial Myopathy Assessment: The Evolving Concept of Left Atrium Disease in Hypertrophic Cardiomyopathy

Fumagalli,

Zocchi,

Ciabatti

et al. 2024

Canadian Journal of Cardiology

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Atrioventricular nodal ablation is an effective management strategy for atrial fibrillation in patients with hypertrophic cardiomyopathy

Butcher,

Rajappan,

Wharmby

et al. 2023

Heart Rhythm

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Catheter ablation of atrial fibrillation in hypertrophic cardiomyopathy: A proportional meta-analysis and systematic review of single-arm studies

Cited by 4 publications

References 39 publications

Clinical and pathophysiologic determinants of catheter ablation outcome in hypertrophic cardiomyopathy with atrial fibrillation

Clinical and pathophysiologic determinants of catheter ablation outcome in hypertrophic cardiomyopathy with atrial fibrillation

From Atrial Fibrillation Management to Atrial Myopathy Assessment: The Evolving Concept of Left Atrium Disease in Hypertrophic Cardiomyopathy

Atrioventricular nodal ablation is an effective management strategy for atrial fibrillation in patients with hypertrophic cardiomyopathy

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