Results 31 to 40 of about 180,777 (427)

Local catheter impedance drop during pulmonary vein isolation predicts acute conduction block in patients with paroxysmal atrial fibrillation: initial results of the LOCALIZE clinical trial

Europace, 2021
Aims Radiofrequency ablation creates irreversible cardiac damage through resistive heating and this temperature change results in a generator impedance drop.
M. Das, A. Luik, E. Shepherd, M. Sulkin, J. Laughner, T. Oesterlein, E. Duffy, C. Meyer, P. Jais, J. Duchâteau, A. Yue, W. Ullah, P. Ramos, I. García-Bolao   +13 more
semanticscholar   +1 more source

Rate‐dependent and unidirectional conduction block between the left pulmonary vein and left atrium after catheter ablation for atrial fibrillation

Journal of Arrhythmia, 2020
A 77‐year‐old woman with symptomatic paroxysmal atrial fibrillation (PAF) underwent pulmonary vein isolation (PVI), but subsequently experienced recurrence.
Maki Oi, Shinnosuke Nomura, Mitsunori Miho, Takayasu Kobayashi, Marie Okabayashi, Hirooki Higami, Naoaki Onishi, Nobuya Higashitani, Sayaka Saijo, Fumiko Nakazeki, Naofumi Oyamada, Toshikazu Jinnai, Shohei Terada, Shota Osaki, Katsutoshi Horii, Kazuaki Kaitani   +15 more
doaj   +1 more source

Radiofrequency Versus Cryoballoon Catheter Ablation for Paroxysmal Atrial Fibrillation: Durability of Pulmonary Vein Isolation and Effect on Atrial Fibrillation Burden

Circulation: Arrhythmia and Electrophysiology, 2021
Supplemental Digital Content is available in the text. Background: Recurrent paroxysmal atrial fibrillation (AF) after catheter ablation is presumably caused by failure to achieve durable pulmonary vein isolation (PVI).
Samuel K. Sørensen, A. Johannessen, R. Worck, M. L. Hansen, J. Hansen   +4 more
semanticscholar   +1 more source

Data-Dependent Higher-Order Clique Selection for Artery-Vein Segmentation by Energy Minimization [PDF]

International Journal of Computer Vision 117, 142-158(2016), 2023
We propose a novel segmentation method based on energy minimization of higher-order potentials. We introduce higher-order terms into the energy to incorporate prior knowledge on the shape of the segments. The terms encourage certain sets of pixels to be entirely in one segment or the other.
arxiv   +1 more source

Semi-urgent pulmonary vein isolation using cryoballoon for haemodynamically unstable atrial fibrillation storm in a patient with low cardiac output syndrome: a case report

BMC Cardiovascular Disorders, 2020
Background Atrial fibrillation and heart failure are common coexisting conditions requiring hospitalisation for heart failure and death. Pulmonary vein isolation is a well-established option for symptomatic atrial fibrillation and for atrial fibrillation
Toshiharu Koike, Fumiaki Mori, Ryozo Maeda, Ken Kobayashi, Masayuki Sakai, Kenjiro Oyabu, Yuko Matsui, Masafumi Yoshikawa, Kou Sugiyama, Yoichi Ajiro, Kazunori Iwade   +10 more
doaj   +1 more source

Catheter ablation of atrial fibrillation : radiofrequency catheter ablation for redo procedures after cryoablation [PDF]

, 2013
Aim: To evaluate the effectiveness of two different strategies using radiofrequency catheter ablation for redo procedures after cryoablation of atrial fibrillation. Methods: Thirty patients (paroxysmal atrial fibrillation: 22 patients, persistent atrial
Gramley, Felix, Kettering, Klaus
core   +1 more source

A case report of pulmonary vein isolation performed in a patient with polysplenia and interrupted inferior vena cava [PDF]

, 2021
Publisher Copyright: © 2021 The Author(s) 2021. Published by Oxford University Press on behalf of the European Society of Cardiology.Background: Pulmonary vein isolation (PVI) has entrenched itself as one of the main approaches for the treatment of ...
Erglis, Andrejs, Jubele, Kristīne, Kupics, Kaspars, Nesterovics, Georgijs   +3 more
core   +1 more source

Optimizing cryoballoon pulmonary vein isolation: lessons from >1000 procedures- the Frankfurt approach.

Europace, 2021
AIMS Cryoballoon (CB) pulmonary vein isolation (PVI) is an accepted ablation strategy for rhythm control in atrial fibrillation (AF). We describe efficacy and safety in a high volume centre with a long experience in the use of the second-generation CB ...
S. Bordignon, Shaojie Chen, F. Bologna, S. Thohoku, L. Urbanek, F. Willems, S. Zanchi, L. Bianchini, Luca Trolese, A. Konstantinou, A. Fuernkranz, B. Schmidt, J. Chun   +12 more
semanticscholar   +1 more source

A modified primary culture method of rat pulmonary vein smooth muscle cells

Journal of Cardiothoracic Surgery, 2023
Background Although the pressure of pulmonary vein increases before pulmonary artery in pulmonary hypertension due to left heart disease (PH-LHD), only a few studies have assessed pulmonary vein smooth muscle cells (PVSMCs) because of the lack of a ...
Wenhui Huang, Hongjin Liu, Yichao Pan, Xueying Wang, Hongwei Yang, Danjie Wang, Jing Lin, Hui Zhang   +7 more
doaj   +1 more source

Autonomic Alterations After Pulmonary Vein Isolation in the CIRCA‐DOSE (Cryoballoon vs Irrigated Radiofrequency Catheter Ablation) Study

Journal of the American Heart Association : Cardiovascular and Cerebrovascular Disease, 2021
Background The natural history of autonomic alterations following catheter ablation of drug‐refractory paroxysmal atrial fibrillation is poorly defined, largely because of the historical reliance on non‐invasive intermittent rhythm monitoring for outcome
L. Tang, N. Hawkins, K. Ho, R. Tam, M. Deyell, L. Macle, A. Verma, P. Khairy, R. Sheldon, J. Andrade   +9 more
semanticscholar   +1 more source