Incidence of Pulmonary Vein Stenosis in Patients Submitted to Atrial Fibrillation Ablation: A Comparison of the Selective Segmental Ostial Ablation vs the Circumferential Pulmonary Veins Ablation

2005 ◽  
Vol 14 (1) ◽  
pp. 21-25 ◽  
Author(s):  
David Tamborero ◽  
Lluis Mont ◽  
Santiago Nava ◽  
Teresa M. de Caralt ◽  
Irma Molina ◽  
...  
2016 ◽  
Vol 2016 ◽  
pp. 1-4
Author(s):  
John J. Lee ◽  
Denis Weinberg ◽  
Rishi Anand

Pulmonary vein stenosis is a well-established possible complication following an atrial fibrillation ablation of pulmonary veins. Symptoms of pulmonary vein stenosis range from asymptomatic to severe exertional dyspnea. The number of asymptomatic patients with pulmonary vein stenosis is greater than originally estimated; moreover, only about 22% of severe pulmonary vein stenosis requires intervention. We present a patient with severe postatrial fibrillation (AF) ablation pulmonary vein (PV) stenosis, which was seen on multiple imaging modalities including cardiac computed tomography (CT) angiogram, lung perfusion scan, and pulmonary angiogram. This patient did not have any pulmonary symptoms. Hemodynamic changes within a stenosed pulmonary vein might not reflect the clinical severity of the obstruction if redistribution of pulmonary artery flow occurs. Our patient had an abnormal lung perfusion and ventilation (V/Q) scan, suggesting pulmonary artery blood flow redistribution. The patient ultimately underwent safe repeat atrial fibrillation ablation with successful elimination of arrhythmia.


EP Europace ◽  
2005 ◽  
Vol 7 (Supplement_1) ◽  
pp. 62-63
Author(s):  
D. Tamborero ◽  
J.L. Mont Girbau ◽  
I. Molina ◽  
T.M. De Caralt ◽  
S. Nava ◽  
...  

Global Heart ◽  
2016 ◽  
Vol 11 (2) ◽  
pp. e155
Author(s):  
L.A. Gellér ◽  
G. Széplaki ◽  
K.V. Nagy ◽  
T. Tahin ◽  
N. Szegedi ◽  
...  

Author(s):  
Mithun M. Shenoi ◽  
Xiaoqing Zhang ◽  
Ramji T. Venkatasubramanian ◽  
Erin D. Grassl ◽  
Lenny George ◽  
...  

Over 2 million adults in the United States are affected by atrial fibrillation (AF), a common cardiac arrhythmia that is associated with decreased survival, increased cardiovascular morbidities, and a decrease in quality of life. Atrial fibrillation can be initiated by ectopic beats originating in the myocardial sleeves surrounding the pulmonary veins [1]. Pulmonary vein (PV) isolation via radiofrequency ablation is the current gold standard for treating patients with drug-refractory AF [2]. However, cryoablation is emerging as a new minimally-invasive technique to achieve PV isolation. Cryoablation is fast gaining acceptance due to its minimal tissue disruption, decreased thrombogenicity, and reduced complications (RF can lead to low rate of pulmonary vein stenosis) [2]. One important question in regard to this technology is whether the PV lesion is transmural and circumferential and to what extent adjacent tissues are involved in the freezing process. As ice formation lends itself to image contrast in the body, we hypothesized that intraprocedural CT visualization of the iceball formation would allow us to predict the extent of the cryolesion and/or provide us with a measure of the adjacent tissue damage.


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