Abstract
Purpose
The relationship between height and incident atrial fibrillation (AF) has recently been demonstrated. We aimed to evaluate the impact of height on outcomes of ablation in patients with drug-refractory symptomatic paroxysmal AF (PAF).
Methods
A total of 689 patients (470 males; age, 53.0 ± 11.7 years) with symptomatic paroxysmal AF receiving index catheter ablation (CA) between 2003 and 2013 were enrolled in this study. The baseline characteristics, ablation, and follow-up results were evaluated. The patients were categorized according to the quartiles of height for each sex.
Results
Patients in the lower quartiles of height had a lower incidence of AF recurrence (log-rank p = 0.022). Height in female patients was strongly associated with AF recurrence (p = 0.027) after an index ablation in the 6.33 ± 4.32 years of follow-up. Female patients > 159 cm in height had a higher likelihood of AF recurrence after index CA (HR = 2.01, 95% CI: 1.24–3.25, p = 0.005) than that in those below this height. In computed tomography (CT) scan, the superoinferior diameter of the left atrium (LA) correlated with body height in females, but not in male patients.
Conclusions
Height is associated with AF recurrence after the index CA of PAF in female patients. In Asian populations, women above height 159 cm are twice as likely to have AF recurrence post-ablation as shorter women.
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Data availability
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Code availability
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Acknowledgements
The authors are grateful to the clinical staff in Taipei Veterans General Hospital for their support.
Funding
The present work was supported by the Taipei Veterans General Hospital (V108C-073, V108-031, V109C-001, V109C-005, V110C-024, V110-014) and Ministry of Science and Technology (MOST108-2314-B-010–051-MY3, MOST108-2811-B-010–542, MOST109-2811-B-010–529, MOST109-2314-B-075A-011-MY3).
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CH Liu, FP Chung, LW Lo, and SA Chen initiated the study ideation. CH Liu and LW Lo acquired the data and prepared the manuscript. CH Liu, ST Gan, and SC Huang performed data analysis. LW Lo and SA Chen directed the project. All authors contributed to the study conception and design. All authors read and approved the final manuscript.
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This study was approved by the Institutional Review Board of Taipei Veterans General Hospital (IRB-TPEVGH no. 2019–07-033AC).
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All patients provided their informed consent to the ablation procedure and the anonymized analysis of their personal data.
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The authors declare no competing interests.
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Liu, CH., Lo, LW., Chung, FP. et al. The impact of height on recurrence after index catheter ablation of paroxysmal atrial fibrillation. J Interv Card Electrophysiol 64, 587–595 (2022). https://doi.org/10.1007/s10840-021-01055-2
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DOI: https://doi.org/10.1007/s10840-021-01055-2