Results 21 to 30 of about 2,340,841 (232)

Posterior wall ablation by pulsed-field ablation - procedural safety, efficacy and findings on redo procedures. [PDF]

, 2023
BACKGROUND The left atrial posterior wall is a potential ablation target in patients with recurrent atrial fibrillation despite durable pulmonary vein isolation or in patients with roof-dependent atrial tachycardia (AT).
Kueffer, Thomas, Roten, Laurent, Kozhuharov, Nikola A, Reichlin, Tobias, Tanner, Hildegard, Haeberlin, Andreas, Maurhofer, Jens, Herrera, Claudia, Thalmann, Gregor, Madaffari, Antonio, Seiler, Jens, Noti, Fabian   +11 more
core   +2 more sources

In vivo Imaging of oskar mRNA transport reveals the mechanism of posterior localization [PDF]

, 2008
oskar mRNA localization to the posterior of the Drosophila oocyte defines where the abdomen and germ cells form in the embryo. Although this localization requires microtubules and the plus end-directed motor, kinesin, its mechanism is controversial and ...
Zimyanin, Vitaly L, Gilchrist, Michael J., Pecreaux, J, Davis, Ilan, Zimyanin, Vitaly L., Gilchrist, Michael J, Clark, Alejandra, St Johnston, D, Belaya, K, Pecreaux, Jacques, Clark, A, Gilchrist, MJ, Davis, I, St Johnston, Daniel, Zimyanin, VL, Belaya, Katsiaryna, Johnston, Daniel St   +16 more
core   +1 more source

Left Atrial Posterior Wall Thrombus After Posterior Wall Ablation

, 2020
Background: Posterior wall isolation for recurrent atrial arrhythmia is a commonly used technique to achieve long-term freedom from atrial fibrillation. Despite the widespread use of posterior wall isolation, its long-term effects on left atrial function
Chakravorty, Shourjo, Shah, Sangeeta, Bernard, Michael L.   +2 more
core   +1 more source

The role of local impedance drop in the acute lesion efficacy during pulmonary vein isolation performed with a new contact force sensing catheter-A pilot study.

PLoS ONE, 2021
IntroductionOur pilot study aimed to evaluate the role of local impedance drop in lesion formation during pulmonary vein isolation with a novel contact force sensing ablation catheter that records local impedance as well and to find a local impedance cut-
Nándor Szegedi, Zoltán Salló, Péter Perge, Katalin Piros, Vivien Klaudia Nagy, István Osztheimer, Béla Merkely, László Gellér   +7 more
doaj   +1 more source

Quantitative late gadolinium enhancement cardiac magnetic resonance analysis of the relationship between ablation parameter and left atrial tissue lesion following pulmonary vein isolation

Frontiers in Cardiovascular Medicine, 2023
BackgroundThe impact of ablation parameters on acute tissue lesion formation after pulmonary vein isolation (PVI) has not been sufficiently evaluated in patients with atrial fibrillation.
Qian Wang, Bingyu Huang, Shengqi Huo, Junyi Guo, Haojie Li, Tao Jiang, Dewei Peng, Lintong Men, Dazhong Tang, Chunlin Xiang, Yi Luo, Xiu Pi, Lulu Peng, Yue Jiang, Mengying Zhu, Wei Shi, Sheng Li, Jiagao Lv, Li Lin   +18 more
doaj   +1 more source

Fractionated Mapping-Guided Ablation Strategy in Patients with Long-Standing Persistent Atrial Fibrillation: a Case Series

Journal of Cardiac Arrhythmias, 2020
Although pulmonary vein isolation (PVI) remains the cornerstone of ablation for paroxysmal atrial fibrillation (AF), optimal ablation strategy for long-standing persistent AF (LSPAF) remains unclear.
Tolga Aksu, Tumer Erdem Guler, Serdar Bozyel, Kivanc Yalin   +3 more
doaj   +4 more sources

Morphological variations of pulmonary veins draining into left atrium: A detailed cadaveric study

National Journal of Clinical Anatomy, 2021
Introduction: During pulmonary vein isolation ablation procedure, the knowledge of number and position of pulmonary veins with thickness of posterior wall of left atrium (LA) is of invaluable significance.
Prasenjit Bose, Umesh Choudhary, Pooja Singh, Barkha Singh, Royana Singh   +4 more
doaj   +1 more source

Left atrial posterior wall isolation in addition to pulmonary vein isolation using a pentaspline catheter in pulsed-field ablation for atrial fibrillation: A systematic review and meta-analysis [PDF]

Heart Rhythm O2
William Kamarullah, Mohammad Iqbal, Raymond Pranata   +2 more
exaly   +2 more sources

The Electrical Isolation of the Left Atrial Posterior Wall in Catheter Ablation of Persistent Atrial Fibrillation

, 2019
Objectives: This study explored whether complete electrical isolation of the left atrial (LA) posterior wall improves the rhythm outcome of catheter ablation of persistent atrial fibrillation (AF).
김태훈, 정보영, 이문형, 유희태, 엄재선, 박희남   +5 more
core   +2 more sources

Spontaneous Localized Persistent Atrial Fibrillation with an Exit Block Mimicking Atrial Tachycardia at the Left Posterior Wall

Journal of Arrhythmia, 2007
We describe a 37-year-old man with spontaneous localized atrial fibrillation (AF) with an exit block at the posterior wall of the left atrium (LA). The 12-lead ECG exhibited an atrial tachycardia-like pattern, with distinctive P waves and an isoelectric ...
Shoichi Kubota, MD, Akihiko Nogami, MD, Shinya Kowase, MD, Yasushi Oginosawa, MD, Aiko Sugiyasu, MD, Naohisa Nakajima, MD, Hajime Aoki, MD, Kazuhiko Yumoto, MD, Toshiyuki Tamaki, MD, Kenichi Kato, MD   +9 more
doaj   +1 more source