Results 41 to 50 of about 309,133 (299)

Panoramic Endocardial Optical Mapping Demonstrates Serial Rotors Acceleration and Increasing Complexity of Activity During Onset of Cholinergic Atrial Fibrillation

Journal of the American Heart Association: Cardiovascular and Cerebrovascular Disease, 2021
Background Activation during onset of atrial fibrillation is poorly understood. We aimed at developing a panoramic optical mapping system for the atria and test the hypothesis that sequential rotors underlie acceleration of atrial fibrillation during ...
Óscar Salvador‐Montañés, Rafael J. Ramirez, Yoshio Takemoto, Steven R. Ennis, Daniel Garcia‐Iglesias, Sicong Wang, Patrick J. Wolfer, Jiang Jiang, Sergey V. Mironov, Sandeep V. Pandit, José Jalife, Omer Berenfeld   +11 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

Response to Allopurinol and Febuxostat According to the Fractional Excretion of Urate in Men With Gout

Arthritis Care &Research, EarlyView.
Objective Body mass index (BMI), glomerular filtration rate (GFR), and pretreatment urate levels have been reported to influence the urate‐lowering response to allopurinol. We investigated whether the fractional excretion of uric acid (FEUA) also modulates this response and relates to oxypurinol concentrations.
Pascal Richette, Anouk Walter‐Petrich, Quang Dinh Nguyen, Matthieu Resche‐Rigon, Quang Huy Dinh Nguyen, Minh Duc Do, Thao Phuong Mai, Tuan Duc Nguyen, Fernando Perez‐Ruiz, Emmanuel Letavernier, Tristan Pascart, Augustin Latourte, Hang Korng Ea, Thomas Bardin   +13 more
wiley   +1 more source

Effect of catheter ablation on quality of life in patients with atrial fibrillation and its correlation with arrhythmia outcome [PDF]

, 2015
Objective To assess the effect of catheter ablation on atrial fibrillation (AF) symptoms and quality of life (QoL). Methods Patients with AF scheduled for ablation were recruited.
Bourke, John P, Langley, Philip, Lord, Stephen, Murray, Alan, Murray, Stephen, Raine, Daniel, Shepherd, Ewen   +6 more
core   +1 more source

Meta‐Rod Mechanical Metamaterials With Programmable Reconfiguration

Advanced Functional Materials, EarlyView.
Existing mechanical metamaterials achieve programmable large deformations in planar square or cubic configurations, restricted by required complex boundary conditions. This research proposes a 1D metamaterial, Meta‐rod, with linear, bending, twisting, area, and volume deformation modes.
Atharva Pande, Lyes Kadem, Hang Xu
wiley   +1 more source

CaMKII-dependent regulation of cardiac Na(+) homeostasis. [PDF]

, 2014
Na(+) homeostasis is a key regulator of cardiac excitation and contraction. The cardiac voltage-gated Na(+) channel, NaV1.5, critically controls cell excitability, and altered channel gating has been implicated in both inherited and acquired arrhythmias.
Grandi, Eleonora, Herren, Anthony W
core   +2 more sources

Mechanical and Electrical Phenotype of hiPSC‐Cardiomyocytes on Fibronectin‐Based Hydrogels

Advanced Healthcare Materials, EarlyView.
We introduce fibronectin‐based PEG hydrogels with controlled rigidity to enable the culture of iPSC‐derived cardiomyocytes. These substrates offer an alternative to the current culture of these cells on fibronectin‐coated glass, providing enhanced structural and functional behavior. The system provides a more physiologically relevant platform to assess
Ana Da Silva Costa, Lineta Stonkute, Sara Trujillo, Mariana Azevedo Gonzalez Oliva, Francis Burton, Matthew J. Dalby, Oana Dobre, Godfrey Smith, Manuel Salmeron‐Sanchez   +8 more
wiley   +1 more source

The National Survey of Cardiac Pacemakers and Cardioverter Defibrillators

Journal of Tehran University Heart Center, 2006
Background: Permanent pacemakers provide effective relief of symptoms and are life-saving in patients with symptomatic heart block. Implantable cardioverter defibrillators (ICD) are also increasingly recognized as life-saving tools in various groups of ...
Reza Poorbahador, Bijan Shad, Saeed Oraii, Mahmood Eftekharzadeh, Mehrdad Mirmasoumi, Alireza Ghorbani Sharif, Mohammad Kazem Taraghi, Mehdi Hasanzadeh, Hassan Javadzadegan, Mohammad Javad Zibaeenejad, Jalal Zamani, Gholamrerza Shafieian, Mitra Azadi, Mohammad Hosein Dashti, Keyghobad Behdin, Shahroo Sanii, Shahrbanoo Davoodabadi   +16 more
doaj  

Investigating the role of electroanatomical mapping in single‐shot pulsed field catheter ablation

Journal of Arrhythmia
Introduction Pulsed field ablation (PFA) is a form of nonthermal energy that has been recently introduced for pulmonary vein isolation (PVI). A multi‐electrode pentaspline catheter for delivery of PFA guided by fluoroscopy has become widely available for
Ourania Kariki, Panagiotis Mililis, Athanasios Saplaouras, Theodoros Efremidis, Anastasios Chatziantoniou, Ioannis Panagiotopoulos, Stylianos Dragasis, Konstantinos P. Letsas, Michael Efremidis   +8 more
doaj   +1 more source

The Prognostic Nutritional Index May Predict Left Atrial Appendage Thrombus or Dense Spontaneous Echo Contrast in Patients With Atrial Fibrillation

Frontiers in Cardiovascular Medicine, 2022
ObjectivesThe prognostic nutritional index (PNI) is an independent predictor of adverse outcomes in patients with cardiovascular diseases. The presence of left atrial appendage thrombus (LAAT) or spontaneous echo contrast (SEC) is associated with ...
Zhao Wang, Binhao Wang, Guohua Fu, Bin He, Huimin Chu, Shengmin Zhang   +5 more
doaj   +1 more source