scholarly journals A new interpretation of nonpulmonary vein substrates of the left atrium in patients with atrial fibrillation

2021 ◽  
Author(s):  
Mariano Rillo ◽  
Zefferino Palamà ◽  
Raffaele Punzi ◽  
Salvatore Vitanza ◽  
Angelo Aloisio ◽  
...  
Keyword(s):  
Atrial Fibrillation ◽  
Left Atrium ◽  
New Interpretation

scholarly journals A new interpretation of non-pulmonary vein substrates of the left atrium in patients with atrial fibrillation.

2020 ◽  
Author(s):  
Mariano Rillo ◽  
Zefferino Palam ◽  
Raffaele Punzi ◽  
Salvatore Vitanza ◽  
Angelo Aloisio ◽  
...  
Keyword(s):  
Atrial Fibrillation ◽  
Left Atrium ◽  
Pulmonary Vein ◽  
New Interpretation

Surgical treatment of atrial fibrillation: technique of thoracoscopic radiofrequency fragmentation of the left atrium

2019 ◽  
Vol 25 (4) ◽  
pp. 146
Author(s):  
S. A. Vachev ◽  
A. V. Bogachev-Prokof'ev ◽  
A. S. Zotov ◽  
D. A. Elesin ◽  
S. V. Voronin ◽  
...  
Keyword(s):  
Atrial Fibrillation ◽  
Surgical Treatment ◽  
Left Atrium

scholarly journals A case report of pulmonary vein isolation with radiofrequency catheter using superior vena cava approach in patient with paroxysmal atrial fibrillation and inferior vena cava filter

2021 ◽  
Vol 5 (2) ◽  
Author(s):  
Masatoshi Narikawa ◽  
Masayoshi Kiyokuni ◽  
Junya Hosoda ◽  
Toshiyuki Ishikawa
Keyword(s):  
Atrial Fibrillation ◽  
Inferior Vena Cava ◽  
Left Atrium ◽  
Inferior Vena ◽  
Superior Vena ◽  
Vena Cava ◽  
Ivc Filter ◽  
Transseptal Puncture ◽  
Mapping Catheter ◽  
Steerable Sheath

Abstract Background Transseptal puncture and pulmonary vein isolation (PVI) in patients with atrial fibrillation (AF) are generally performed via the inferior vena cava (IVC). However, in cases where the IVC is inaccessible, a specific strategy may be needed. Case summary An 86-year-old woman with paroxysmal AF and an IVC filter in situ was referred to our hospital for ablation therapy. An IVC filter for pulmonary embolism and deep venous thrombosis had been implanted 15 years prior, therefore we selected a transoesophageal echocardiography (TOE)-guided transseptal puncture using a superior vena cava (SVC) approach. After the single transseptal puncture, we performed fast anatomical mapping, voltage mapping by multipolar mapping catheter, and then PVI by contact force-guided radiofrequency catheter using a steerable sheath. Following the ablation, bidirectional conduction block between the four pulmonary veins and the left atrium was confirmed by both radiofrequency and mapping catheter. No complications occurred and no recurrence of AF was documented in the 12 months after the procedure. Discussion When performing a transseptal puncture during AF ablation, an SVC approach, via access through the right internal jugular vein, enables the sheath to directly approach the left atrium without angulation and improves operability of the ablation catheter. Combining the use of general anaesthesia, TOE, a steerable sheath, and contact force-guided ablation may contribute to achieving minimally invasive PVI with a single transseptal puncture via an SVC approach.

Prediction of arrhythmia recurrence after atrial fibrillation ablation in patients with normal anatomy of the left atrium

2021 ◽  
Author(s):  
Adil K. Baimbetov ◽  
Kenzhebek A. Bizhanov ◽  
Kuat B. Abzaliyev ◽  
Binali A. Bairamov ◽  
Ilinara A. Yakupova
Keyword(s):  
Atrial Fibrillation ◽  
Left Atrium ◽  
Atrial Fibrillation Ablation ◽  
Normal Anatomy

scholarly journals Anatomical correlation between left atrium pulmonary vein ablation targets of atrial fibrillation and adjacent bronchi and pulmonary arteries by MSCT

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Yan-Jing Wang ◽  
Huan Sun ◽  
Xiao-Fei Fan ◽  
Meng-Chao Zhang ◽  
Ping Yang ◽  
...  
Keyword(s):  
Atrial Fibrillation ◽  
Left Atrium ◽  
Pulmonary Vein ◽  
Pulmonary Arteries ◽  
Contact Points ◽  
Pulmonary Vein Ablation ◽  
Adjacent Structures ◽  
Anatomical Correlation ◽  
The Right

Abstract Background The ablation targets of atrial fibrillation (AF) are adjacent to bronchi and pulmonary arteries (PAs). We used computed tomography (CT) to evaluate the anatomical correlation between left atrium (LA)-pulmonary vein (PV) and adjacent structures. Methods Data were collected from 126 consecutive patients using coronary artery CT angiography. The LA roof was divided into three layers and nine points. The minimal spatial distances from the nine points and four PV orifices to the adjacent bronchi and PAs were measured. The distances from the PV orifices to the nearest contact points of the PVs, bronchi, and PAs were measured. Results The anterior points of the LA roof were farther to the bronchi than the middle or posterior points. The distances from the nine points to the PAs were shorter than those to the bronchi (5.19 ± 3.33 mm vs 8.62 ± 3.07 mm; P < .001). The bilateral superior PV orifices, especially the right superior PV orifices were closer to the PAs than the inferior PV orifices (left superior PV: 7.59 ± 4.14 mm; right superior PV: 4.43 ± 2.51 mm; left inferior PV: 24.74 ± 5.26 mm; right inferior PV: 22.33 ± 4.75 mm) (P < .001). Conclusions The right superior PV orifices were closer to the bronchi and PAs than other PV orifices. The ablation at the mid-posterior LA roof had a higher possibility to damage bronchi. CT is a feasible method to assess the anatomical adjacency in vivo, which might provide guidance for AF ablation.

scholarly journals P1151Structural remodeling and conduction velocity dynamics in the human left atrium: relationship with reentrant mechanisms sustaining atrial tachycardia and atrial fibrillation

EP Europace ◽  
2018 ◽  
Vol 20 (suppl_1) ◽  
pp. i219-i219
Author(s):  
S Honarbakhsh ◽  
R J Schilling ◽  
M Orini ◽  
R Providencia ◽  
E Keating ◽  
...  
Keyword(s):  
Atrial Fibrillation ◽  
Left Atrium ◽  
Conduction Velocity ◽  
Atrial Tachycardia
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