Results 121 to 130 of about 19,328,196 (346)

Contrast-enhanced CMR in patients after percutaneous closure of the left atrial appendage: A pilot study [PDF]

, 2011
Background To evaluate the feasibility and value of first-pass contrast-enhanced dynamic and post-contrast 3D CMR in patients after transcatheter occlusion of left atrial appendage (LAA) to identify incorrect placement and persistent leaks.
Steffen E Petersen, Petersen, SE, Mohrs, OK, Nina Wunderlich, Anselm Pottmeyer, Petersen Steffen E, Wunderlich, N, Pottmeyer, A, Hans-Ulrich Kauczor, Mohrs Oliver K, Pottmeyer Anselm, Kauczor, HU, Wunderlich Nina, Kauczor Hans-Ulrich, Oliver K Mohrs   +14 more
core   +1 more source

Innovative Approach Reveals How Receptors Control G Protein State Equilibria

Advanced Science, EarlyView.
Using conformational specific trFRET biosensors of the Gi protein (depicted at the bottom), the authors show that receptor activation can not only release GDP from the inactive G protein, but can also release GTP from the activated G protein, leading to the reformation of the RG ternary complex.
Alexandre Bouyssou, Mélanie Da Silva, Julien Soulé, Ludovic Fabre, Laurent Lamarque, Rémy Sounier, Thierry Durroux, Sébastien Granier, Thomas Roux, Elodie Dupuis, Eric Trinquet, Philippe Rondard, Jean‐Philippe Pin   +12 more
wiley   +1 more source

Atrialización de un caso de síndrome de aurícula paralítica Atrialization in one case of atrial palsy syndrome

Revista Colombiana de Cardiología, 2007
El síndrome de aurícula paralítica es una entidad poco común y generalmente se presenta aislada o asociada a trastornos degenerativos musculares. Se ha propuesto un mecanismo de transmisión familiar por transmisión autosómica dominante.
Alejandro Orjuela, Diego Vanegas, Juan de J Montenegro   +2 more
doaj  

Association of Left Atrial Function and Left Atrial Enhancement in Patients with Atrial Fibrillation: A Cardiac Magnetic Resonance Study

Circulation Cardiovascular Imaging, 2015
Background Atrial fibrillation (AF) is associated with left atrial (LA) structural and functional changes. Cardiac magnetic resonance (CMR) late gadolinium enhancement (LGE) and feature-tracking are capable of noninvasive quantification of LA fibrosis ...
Mohammadali Habibi, J. Lima, I. Khurram, Stefan L. Zimmerman, V. Zipunnikov, K. Fukumoto, D. Spragg, H. Ashikaga, J. Rickard, Joseph E. Marine, H. Calkins, S. Nazarian   +11 more
semanticscholar   +1 more source

Three-dimensional trans-esophageal echocardiographic evaluation of atrial Septal defects : a pictorial essay [PDF]

, 2011
This pictorial assay illustrates the methodology of evaluating the atrial septal defects by three dimensional transesophageal echocardiography with the help of representative images.
Shrivastava, Sameer, Sharma, Vinay Kumar, Radhakrishnan, Sitaraman   +2 more
core  

Role of cardiac resynchronization therapy in the development of new-onset atrial fibrillation: A single-center prospective study. [PDF]

, 2012
Albeit several studies examined the association between cardiac resynchronization therapy (CRT) and atrial fibrillation (AF) in heart failure (HF), results are still unclear and quite conflicting.
Salvatore d'Ascia, Cristofaro d'Ascia, Gaetano Santulli, Massimo Chiariello, Salvatore d'Ascia, Cristofaro d'Ascia   +5 more
core   +1 more source

Wearable E‐Textiles for Cardiovascular Monitoring: Materials, Devices, and Integrated Systems

Advanced Science, EarlyView.
The graphical abstract highlights the role of conductive materials and textile fabrication techniques in enabling smart textiles for cardiovascular applications. It showcases textile‐based ECG monitoring, pulse sensing, hemodynamic monitoring, and cardiovascular tissue engineering, while emphasizing the challenges and design considerations that govern ...
Bangul Khan, Mahmoud Tavakoli, Norbert Radacsi, Bee Luan KHOO   +3 more
wiley   +1 more source

Deep learning of left atrial structure and function provides link to atrial fibrillation risk

Nature Communications
Increased left atrial volume and decreased left atrial function have long been associated with atrial fibrillation. The availability of large-scale cardiac magnetic resonance imaging data paired with genetic data provides a unique opportunity to assess ...
James P. Pirruccello, Paolo Di Achille, Seung Hoan Choi, Joel T. Rämö, Shaan Khurshid, Mahan Nekoui, Sean J. Jurgens, Victor Nauffal, Shinwan Kany, FinnGen, Kenney Ng, Samuel F. Friedman, Puneet Batra, Kathryn L. Lunetta, Aarno Palotie, Anthony A. Philippakis, Jennifer E. Ho, Steven A. Lubitz, Patrick T. Ellinor   +18 more
doaj   +1 more source

Surgical strategy for atrial functional mitral regurgitation with atrial fibrillation

Journal of the American Heart Association
Abstract Background With the growing prevalence of atrial fibrillation (AF), atrial functional mitral regurgitation (AFMR) combined with AF is expected to become a common clinical issue. We have summarized various surgical treatment strategies based on the degree of mitral regurgitation (MR ...
Chunrong Bao, Ke Wei, Dongfang Zhao, Junwen Zhang, Ju Mei, Nan Ma   +5 more
openaire   +2 more sources

Rate-dependency of action potential duration and refractoriness in isolated myocytes from the rabbit AV node and atrium [PDF]

, 2000
During atrial fibrillation, ventricular rate is determined by atrioventricular nodal (AVN) conduction, which in part is dependent upon the refractoriness of single AVN cells.
Kane, K.A., Rankin, A.C., Workman, A.J.
core   +1 more source