Biomed Pap Med Fac Univ Palacky Olomouc Czech Repub. 2015, 159(4):622-628 | DOI: 10.5507/bp.2014.040

Comparison of clinical outcomes and safety of catheter ablation for atrial fibrillation supported by data from CT scan or three-dimensional rotational angiogram of left atrium and pulmonary veins

Frantisek Lehar, Zdenek Starek, Jiri Jez, Miroslav Novak, Jiri Wolf, Radka Stepanova, Peter Kruzliak, Tomas Kulik, Alena Zbankova, Radek Jancar, Jiri Vitovec
International Clinical Research Center, Department of Cardiovascular Disease, St. Anne's University Hospital in Brno and Faculty of Medicine, Masaryk University Brno, Czech Republic

Background: Catheter ablation in the left atrium has become a common therapeutic strategy in the management of atrial fibrillation (AF). The high degree of success and safety profile of this procedure is dependent on precise knowledge of the true anatomy in the chamber. This information is imported mostly from cardiac computed tomography. A novel method for imaging the left atrial anatomy is three-dimensional rotational angiography (3DRA).

Methods: The aim of our study was to the compare clinical outcome and safety of catheter ablation for atrial fibrillation guided by 3DRA vs. conventional CT scan. One hundred and twenty-five patients referred for AF catheter ablation at St. Anne's University Hospital Brno were included in the retrospective analysis of clinical outcome within the first year after the procedure.

Results: There was a close correlation in overall procedural parameters between the groups. The frequency of recurrent episodes of AF (24% in CT-guided group vs. 27% in 3DRA-guided group, P=0.721) as well as the onset of atypical atrial flutter after the procedure (10% vs. 8%, respectively, P=0.731) were similar in both groups. No difference in the number of patients necessitating repeat ablation (5% vs. 5%, P=0.984) was found. Procedural complications of ablations guided by 3DRA were comparable with those guided by CT (2% vs. 3%, respectively, P=0.568).

Conclusion: 3DRA has proven to be a safe and simple method for imaging the left atrium and guiding catheter ablation for AF. This approach is anticipated to become a new standard in 3D reconstruction of the left atrium.

Keywords: atrial fibrillation, catheter ablation, electrophysiology, three dimensional rotational atriography, computed tomography, imaging, left atrium

Received: October 14, 2013; Accepted: July 3, 2014; Prepublished online: July 17, 2014; Published: December 3, 2015  Show citation

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Lehar, F., Starek, Z., Jez, J., Novak, M., Wolf, J., Stepanova, R., ... Vitovec, J. (2015). Comparison of clinical outcomes and safety of catheter ablation for atrial fibrillation supported by data from CT scan or three-dimensional rotational angiogram of left atrium and pulmonary veins. Biomedical papers, 159(4), 622-628. doi: 10.5507/bp.2014.040
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