Abstract
Purpose
Our aim was to elucidate the relationship between obstructive sleep apnea (OSA) and atrial fibrillation (AF) recurrence after repeated pulmonary vein isolation (PVI).
Methods
We conducted a non-randomized observational study, with the data prospectively collected. One hundred patients (paroxysmal AF, n = 89) underwent PVI using a contact force–sensing catheter. All patients underwent an electrophysiological study and additional ablation for left atrium-pulmonary vein (PV) reconnection and non-PV foci, 6 months after the first treatment session, regardless of AF recurrence. Those with an apnea-hypopnea index ≥ 15 were diagnosed with OSA. Continuous positive air pressure (CPAP) therapy was initiated after the second treatment session, based on results of a sleep study. For analysis, patients were classified into the non-OSA (n = 66), treated OSA (OSA patients undergoing CPAP; n = 11), and untreated OSA (n = 23) groups, and between-group differences evaluated.
Results
After the first session, AF recurrence was observed in 18.2% (12/66) and 14.7% (5/34) of patients without and with OSA, respectively (P = 0.678). After the second procedure, the rate of AF recurrence was 12.1% (8/66) in the non-OSA group, 9.1% (1/11) in the treated OSA group, and 8.7% (2/23) in the untreated OSA group (log-rank P = 0.944).
Conclusions
The rate of AF recurrence might not be greater in patients with untreated OSA than in those without OSA and those with treated OSA after repeated PVI, using a contact force–sensing catheter, for patients with paroxysmal or short-term persistent AF.
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Rintaro Hojo designed the study and wrote the initial draft of the manuscript. Seiji Fukamizu and Masayasu Hiraoka contributed to analysis and interpretation of data. All other authors have contributed to data collection and interpretation and critically reviewed the manuscript.
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Hojo, R., Fukamizu, S., Miyazawa, S. et al. The relationship between obstructive sleep apnea and recurrence of atrial fibrillation after pulmonary vein isolation using a contact force–sensing catheter. J Interv Card Electrophysiol 54, 209–215 (2019). https://doi.org/10.1007/s10840-018-0489-x
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DOI: https://doi.org/10.1007/s10840-018-0489-x