von Bary, Christian and Weber, Stefan and Dornia, Christian and Eissnert, Christoph and Fellner, Claudia and Latzin, Philipp and Fredersdorf, Sabine and Stadler, Stefan and Hamer, Okka W. (2011) Evaluation of Pulmonary Vein Stenosis After Pulmonary Vein Isolation Using a Novel Circular Mapping and Ablation Catheter (PVAC). CIRCULATION-ARRHYTHMIA AND ELECTROPHYSIOLOGY, 4 (5). pp. 630-636. ISSN 1941-3149,
Full text not available from this repository. (Request a copy)Abstract
Background-Pulmonary vein stenosis (PVST) is a well-known complication of pulmonary vein isolation (PVI). Specific anatomically designed ablation catheters for antral PVI have not been evaluated with regard to the incidence of PVST. We investigated the incidence, severity, and characteristics of PVST after PVI with the Pulmonary Vein Ablation Catheter (PVAC) and phased radiofrequency technology. Methods and Results-A total of 100 patients (55 men) underwent PVI for atrial fibrillation using the PVAC. PVI was guided by selective angiography of each pulmonary vein (PV) in 70 (70%) patients and by reconstructed 3D atriography (ATG) in 30 (30%) patients. Gadolinium-enhanced MRI or multidetector CT was performed in all patients before treatment and 93 +/- 78 days after PVI. PVST was classified as follows: insignificant (<25%), mild (25%-50%), moderate (50%-75%), or severe (>75%). A total of 410 PVs were analyzed. Cardiac imaging demonstrated a detectable narrowing of the PV diameter in 23 (23%) patients and in 28 (7%) PVs. In detail, insignificant PVST was observed in 12 (2.9%) PVs, mild PVST in 15 (3.7%), and moderate PVST in 1 (0.2%). No instances of severe PVST were observed. The use of 3D-ATG was associated with a lower incidence of PVST (0.8% [95% CI, 0.0%-2.2%] versus 5.4% [95% CI, 2.7%-8.1%], P=0.027). Conclusions-To our knowledge, this study is the first to report the incidence of PVST using the PVAC. In this regard, the PVAC seems to be safe if used in an experienced center. In addition, the use of 3D-ATG may decrease the risk of PVST. (Circ Arrhythm Electrophysiol. 2011;4:630-636.)
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | PERSISTENT ATRIAL-FIBRILLATION; MULTISLICE COMPUTED-TOMOGRAPHY; RADIOFREQUENCY ABLATION; CRYOBALLOON TECHNIQUE; ANGIOPLASTY; EFFICACY; SAFETY; ENERGY; atrial fibrillation; catheter ablation; pulmonary veins; stenosis; cardiac imaging techniques |
| Subjects: | 600 Technology > 610 Medical sciences Medicine |
| Divisions: | Medicine > Lehrstuhl für Innere Medizin II Medicine > Lehrstuhl für Röntgendiagnostik |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 28 May 2020 06:56 |
| Last Modified: | 28 May 2020 06:56 |
| URI: | https://pred.uni-regensburg.de/id/eprint/20015 |
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