Dataset Information

Clinical course of sinus node dysfunction after thoracoscopic surgery for atrial fibrillation-analysis of the Atrial Fibrillation Ablation and Autonomic Modulation via Thoracoscopic Surgery (AFACT) study.

ABSTRACT:

Purpose

Sinus node dysfunction (SND) may complicate thoracoscopic surgical atrial fibrillation (AF) ablation. Identifying patients at risk is important, as SND may require temporary or permanent pacing. To determine the incidence of postoperative SND and duration of symptoms in patients who underwent thoracoscopic surgical ablation.

Methods

Patients with paroxysmal or persistent AF included in the Atrial Fibrillation Ablation and Autonomic Modulation via Thoracoscopic Surgery (AFACT) study underwent pulmonary vein isolation and additional left atrial ablations on indication. Patients were randomized to ganglion plexus ablation or control. SND was defined as symptomatic or asymptomatic junctional rhythm exceeding sinus rate within 30 days postoperatively. The SND risk was assessed by using a univariable logistic regression model. The rate of pacemaker implantation was determined.

Results

The AFACT study included 240 patients. SND developed in 17 (7.1%) patients, not affected by randomized treatment, p = 0.18. SND patients more often had persistent AF (88.2%) than patients without SND (57.4%), p = 0.01. After univariable testing, persistent AF (OR 5.57 CI 1.52-35.90, p = 0.02) and additional left atrial ablations (OR 12.10 CI 2.40-220.20, p = 0.02) were associated with postoperative SND. Six (35.3%) patients needed temporary pacing for 1-7 days; permanent pacemakers (PMs) were implanted for SND in five (29.4%) patients.

Conclusion

Additional left atrial ablations strongly increase the SND risk. The majority of SND was temporary, and sinus rhythm resolved within days, which indicates that a conservative approach with regard to pacemaker implantation should be considered.

SUBMITTER: Neefs J

PROVIDER: S-EPMC7925456 | biostudies-literature | 2021 Mar

REPOSITORIES: biostudies-literature

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Publications

Clinical course of sinus node dysfunction after thoracoscopic surgery for atrial fibrillation-analysis of the Atrial Fibrillation Ablation and Autonomic Modulation via Thoracoscopic Surgery (AFACT) study.

Neefs Jolien J Ons Shaëlle A SA Berger Wouter R WR Krul Sébastien P J SPJ van den Berg Nicoline W E NWE Piersma Femke R FR Beijk Marcel A M MAM van Boven WimJan P WP Driessen Antoine H G AHG de Groot Joris R JR

Journal of interventional cardiac electrophysiology : an international journal of arrhythmias and pacing 20200314 2

<h4>Purpose</h4>Sinus node dysfunction (SND) may complicate thoracoscopic surgical atrial fibrillation (AF) ablation. Identifying patients at risk is important, as SND may require temporary or permanent pacing. To determine the incidence of postoperative SND and duration of symptoms in patients who underwent thoracoscopic surgical ablation.<h4>Methods</h4>Patients with paroxysmal or persistent AF included in the Atrial Fibrillation Ablation and Autonomic Modulation via Thoracoscopic Surgery (AFA ...[more]

PMID: 32172425

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Project description:Abstract Funding Acknowledgements Type of funding sources: None. Introduction Atrial fibrillation catheter ablation (AFCA) improves sinus node function and may defer a permanent pacemaker (PPM) implantation. We explored the clinical and genetic characteristics of the patients with AF and sinus node dysfunction (SND) who eventually needed PPM implantation after AFCA. Methods Among 2,732 AF patients with genome-wide association study (GWAS, PMRA, Thermofisher scientific, MA, USA) data who underwent the first AFCA, 244 patients (65.0, IQR [59.0, 72.0] years, male 58.2%, paroxysmal AF 79.5%) had underlying SND before AFCA (class I indication for PPM). We retrospectively investigated clinical factors, single-nucleotide polymorphisms (SNPs), and their polygenic risk score (PRS) associated with PPM-AFCA. We defined the cut-off of PRS using the Youden index. Results During median 37.9 (IQR 20.3-77.9) months follow-up, 36 out of 244 patients (16.1%) with underlying SND eventually underwent PPM implantation after AFCA (PPM-AFCA). PPM-AFCA group a had a higher body mass index (p=0.013) and large left atrial (LA) dimension (p=0.006) than their counterpart. Among 44 SNPs related to AF and SND, the rs3922844 (p=0.003) near SCN5A and rs9320841 (p=0.011) and rs1015451 (p=0.046) near CJA1 were significantly associated with PPM-AFCA. The rate of PPM-AFCA implantation was significantly higher in the high PRS group (≥1.175, 25.6%) compared to the low PRS group (<1.175, 9.38%, p=0.002, Log-rank p=0.002). LA dimension (adjusted HR 1.06, 95% CI [1.00-1.13], p=0.044) and PRS (adjusted HR 2.69, 95% CI [1.68-4.31], p<0.001) were associated with a higher risk for PPM-AFCA after adjusting clinical factors including age, sex, AF type, beta blocker, and antiarrhythmic drugs after AFCA. Conclusions In AF patients with SND, 16% with the genetic background of SCN5A and CJA1 or large atrium eventually needed PPM implantation after AFCA. KM analysis for PM implantation SNPs associated with PM implantation

Dataset Information

Clinical course of sinus node dysfunction after thoracoscopic surgery for atrial fibrillation-analysis of the Atrial Fibrillation Ablation and Autonomic Modulation via Thoracoscopic Surgery (AFACT) study.

Purpose

Methods

Results

Conclusion

Publications

Clinical course of sinus node dysfunction after thoracoscopic surgery for atrial fibrillation-analysis of the Atrial Fibrillation Ablation and Autonomic Modulation via Thoracoscopic Surgery (AFACT) study.

Similar Datasets

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