scholarly journals 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

2015 ◽  
Vol 159 (4) ◽  
pp. 622-628 ◽  
Author(s):  
Frantisek Lehar ◽  
Zdenek Starek ◽  
Jiri Jez ◽  
Miroslav Novak ◽  
Jiri Wolf ◽  
...  
Keyword(s):  
Atrial Fibrillation ◽  
Catheter Ablation ◽  
Ct Scan ◽  
Left Atrium ◽  
Clinical Outcomes ◽  
Pulmonary Veins ◽  
Three Dimensional

Multi–Detector Row CT of the Left Atrium and Pulmonary Veins before Radio-frequency Catheter Ablation for Atrial Fibrillation

Radiographics ◽  
2003 ◽  
Vol 23 (suppl_1) ◽  
pp. S35-S48 ◽  
Author(s):  
Joan M. Lacomis ◽  
William Wigginton ◽  
Carl Fuhrman ◽  
David Schwartzman ◽  
Derek R. Armfield ◽  
...  
Keyword(s):  
Atrial Fibrillation ◽  
Catheter Ablation ◽  
Radio Frequency ◽  
Left Atrium ◽  
Pulmonary Veins

Abstract 256: Cardiac CT in Ablation of Atrial Fibrillation

2017 ◽  
Vol 10 (suppl_3) ◽  
Author(s):  
Ala Mohsen ◽  
Nicole Worden ◽  
Manju Bengaluru Jayanna ◽  
Michael Giudici
Keyword(s):  
Atrial Fibrillation ◽  
Catheter Ablation ◽  
Ct Scan ◽  
Radiation Exposure ◽  
Cardiac Ct ◽  
Pulmonary Veins ◽  
Cryoballoon Ablation ◽  
Atrial Fibrillation Recurrence ◽  
Significant Difference ◽  
The Impact

Background: This study aims to determine the impact of pre-procedural cardiac computerized tomography (CT) on procedural efficacy, clinical outcome and complications in patients who undergo radiofrequency or cryo-therapy catheter ablation to eliminate atrial fibrillation (AF). Methods: In this retrospective review, Radiofrequency or Cryoballoon ablation was done on 50 consecutive patients with atrial fibrillation with mean age of 63 (Min 47-Max 86) with paroxysmal (8 2 %) or persistent (18%) AF. Twenty-five patients underwent cryoablation and twenty-five patients underwent Radiofrequency ablation to isolate the pulmonary veins. Procedural and clinical outcomes were compared among patients who underwent catheter ablation with and without pre procedural Cardiac CT. Results: Out of 50 consecutive patients between 01/2014 and 08/2014 there were 26 patients who had a pre-procedural CT scan and 24 patients who did not undergo a pre-procedural CT scan. The mean duration of the procedure (303 ± 93 vs. 271 ± 43 min, P = 0.244) and fluoroscopy time (53 ± 25 vs. 43 ± 17 min, P = 0.086) was similar among patients who did and did not have pre-procedural cardiac CT. The occurrence of complications such as bleeding, pericardial tamponade, pneumothorax, infection and embolic events were also similar in both groups. Repeat ablation was performed in 4 (15%) and 7 (29%) of the patients who did and did not have cardiac CT, respectively (P = 0.249). At 3 months, 5 (19%) and 2(8%) of the patients who did and did not have pre-procedural cardiac CT had atrial fibrillation recurrence (P =0.323). At 12 months, 6 (23%) and 4 (17%) of the patients who did and did not have pre-procedural cardiac CT had atrial fibrillation recurrence (P = 0.467). There was statistically significant difference in Radiation exposure (1805 [IQR 998-2397] vs. 1195 [IQR 738-1363] P=0.0323) between patients who did and did not get pre-procedural cardiac CT, which did not include the radiation added by performing the CT itself. Conclusions: Pre-procedural structural anatomy obtained by cardiac CT scan before catheter ablation for atrial fibrillation in a center where operators used both Radiofrequency and Cryoablation does not appear to have a significant effect on AF recurrence at 3 months or 1 year. The procedural radiation exposure was significantly less in the group that did not have pre-procedure cardiac CT.

scholarly journals 1071-219 Remodeling of the left atrium and pulmonary veins following catheter ablation of atrial fibrillation

2004 ◽  
Vol 43 (5) ◽  
pp. A117-A118
Author(s):  
Darshan Dalal ◽  
Vinod Jayam ◽  
Chandrasekhar R Vasamreddy ◽  
Lars Lickfett ◽  
Dave Bradley ◽  
...  
Keyword(s):  
Atrial Fibrillation ◽  
Catheter Ablation ◽  
Left Atrium ◽  
Pulmonary Veins

scholarly journals Long-standing Persistent Atrial Fibrillation Ablation: the Role of the Inter- and Intra-atrial Bundles

2020 ◽  
Vol 33 (2) ◽  
pp. 73-81
Author(s):  
Russell Mitchell ◽  
Cesar Augusto Bonilla Isaza
Keyword(s):  
Atrial Fibrillation ◽  
Catheter Ablation ◽  
Clinical Outcomes ◽  
Pulmonary Veins ◽  
Persistent Atrial Fibrillation ◽  
Conduction System ◽  
Atrial Fibrillation Ablation ◽  
Anatomical Location

Catheter ablation has become the mainstream treatment of atrial fibrillation, but still remains a challenge in those patient with persistent and long standing persistent atrial fibrillation. In addition of isolation of the pulmonary veins, any other areas that can trigger or perpetuate atrial fibrillation need to be isolated. Current technologies may allow to effectively deliver permanently lasting lesions, and therefore improve clinical outcomes after ablation. The specialized conduction system including the Bachmann and septopulmonary bundles, are important substrate targets for the management of atrial fibrillation. The anatomical location of these fibers, and the corresponding approach for ablation are described in this case.

scholarly journals Intracardiac Echocardiography during Catheter-Based Ablation of Atrial Fibrillation

2012 ◽  
Vol 2012 ◽  
pp. 1-8 ◽  
Author(s):  
Jürgen Biermann ◽  
Christoph Bode ◽  
Stefan Asbach
Keyword(s):  
Atrial Fibrillation ◽  
Left Atrium ◽  
Pulmonary Veins ◽  
Three Dimensional ◽  
Interatrial Septum ◽  
Intracardiac Echocardiography ◽  
Success Rates ◽  
Adjacent Structures ◽  
Intracardiac Ultrasound ◽  
Dimensional Object

Accurate delineation of the variable left atrial anatomy is of utmost importance during anatomically based ablation procedures for atrial fibrillation targeting the pulmonary veins and possibly other structures of the atria. Intracardiac echocardiography allows real-time visualisation of the left atrium and adjacent structures and thus facilitates precise guidance of catheter-based ablation of atrial fibrillation. In patients with abnormal anatomy of the atria and/or the interatrial septum, intracardiac ultrasound might be especially valuable to guide transseptal access. Software algorithms like CARTOSound (Biosense Webster, Diamond Bar, USA) offer the opportunity to reconstruct multiple two-dimensional ultrasound fans generated by intracardiac echocardiography to a three-dimensional object which can be merged to a computed tomography or magnetic resonance imaging reconstruction of the left atrium. Intracardiac ultrasound reduces dwell time of catheters in the left atrium, fluoroscopy, and procedural time and is invaluable concerning early identification of potential adverse events. The application of intracardiac echocardiography has the great capability to improve success rates of catheter-based ablation procedures.

scholarly journals Topographic variability of the left atrium and pulmonary veins assessed by 3D-CT predicts the recurrence of atrial fibrillation after catheter ablation

2015 ◽  
Vol 31 (5) ◽  
pp. 286-292 ◽  
Author(s):  
Kunihiko Kiuchi ◽  
Akihiro Yoshida ◽  
Asumi Takei ◽  
Koji Fukuzawa ◽  
Mitsuaki Itoh ◽  
...  
Keyword(s):  
Atrial Fibrillation ◽  
Catheter Ablation ◽  
Left Atrium ◽  
Pulmonary Veins ◽  
3D Ct ◽  
Topographic Variability
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