Results 191 to 200 of about 23,451 (258)

4D ultrasound reveals regional left atrial strain remodelling in a murine model of reversible pressure overload

The Journal of Physiology, EarlyView.
Abstract figure legend Traditional planar imaging approaches of the left atrium do not capture complex geometry. Four‐dimensional imaging allows the acquisition of 3D data + time to visualize left atrial geometry and kinematics. We designed an advanced analysis technique to investigate left atrial biomechanics in a model of pressure overload and ...
John P. Salvas, Thomas Moore‐Morris, Craig J. Goergen, Pierre Sicard   +3 more
wiley   +1 more source

Bigger May Be Better Indeed?: Navigating Device Sizing in Left Atrial Appendage Closure. [PDF]

JACC Asia
Ko AHY, Wong I.
europepmc   +1 more source

Mechanistic insights into sex differences in atrial electrophysiology and arrhythmia vulnerability through sex‐specific computational models

The Journal of Physiology, EarlyView.
Abstract figure legend Sex‐specific models of the human atrial myocyte in normal sinus rhythm (nSR) and chronic atrial fibrillation (cAF) revealed increased alternans susceptibility in cAF males and DADs in females, driven primarily by ICaL and ryanodine receptor remodelling.
Nathaniel T. Herrera, Haibo Ni, Charlotte E. R. Smith, Yixuan Wu, Dobromir Dobrev, Stefano Morotti, Eleonora Grandi   +6 more
wiley   +1 more source

Congenital left atrial appendage aneurysm in an adolescent: Diagnostic clues and surgical management. [PDF]

JTCVS Tech
Huang Y, Ahmad N, Chen X, Huang L.
europepmc   +1 more source

Intercalated disk structure, tissue heterogeneity and ion channel distribution modulate conduction and local calcium influx

The Journal of Physiology, EarlyView.
Abstract figure legend A, three‐dimensional representation of cardiac intercalated disk, reduced to a 100‐partition, computationally efficient network representation. B, ion dynamics within intercalated disk extracellular cleft space. C, rapid pacing leads to localized conduction block in tissue with regions of perturbed intercalated disk (ID ...
Nicolae Moise, Heather L. Struckman, James W. Smyth, Gregory S. Hoeker, Steven Poelzing, Rengasayee Veeraraghavan, Seth H. Weinberg   +6 more
wiley   +1 more source

An age‐associated decline in the role of the sarcoplasmic reticulum and associated calcium‐handling proteins sets the pace for sinoatrial node function

The Journal of Physiology, EarlyView.
Abstract figure legend Stable, responsive pacemaking in the sinoatrial node is driven by the activity of the funny current (membrane clock), interplay of calcium cycling and release from the sarcoendoplasmic reticulum with depolarising sodium‐calcium exchange current (calcium clock). With increasing age, key proteins associated with calcium cycling are
Sandra A. Jones, Fiona S. Godbeer, Matthew K. Lancaster   +2 more
wiley   +1 more source

Prevalence and Predictors of Left Atrial Appendage Thrombus by Sex. [PDF]

Clin Appl Thromb Hemost
Walczewski R, Żelazowska-Chmielińska K, Uziębło-Życzkowska B, Dąbrowska M, Gawałko M, Budnik M, Pieszko K, Starzyk K, Wożakowska-Kapłon B, Kaufmann D, Daniłowicz-Szymanowicz L, Wójcik M, Błaszczyk R, Łojewska K, Hiczkiewicz J, Wybraniec M, Mizia-Stec K, Kosmalska K, Fijałkowski M, Szymańska A, Syska-Sumińska J, Haberka M, Kucio M, Michalski B, Kupczyńska K, Tomaszuk-Kazberuk A, Wilk-Śledziewska K, Wachnicka-Truty R, Koziński M, Burchardt P, Krzesiński P, Kapłon-Cieślicka A.   +31 more
europepmc   +1 more source

Gas exchange and pulmonary stress variations during SCUBA and breath‐hold diving in open seawater

The Journal of Physiology, EarlyView.
Abstract figure legend Healthy, trained divers were studied before, during and after diving in open seawater with different techniques. SCUBA divers (diving to 15 or 40 m with air; cycling at depth) and breath‐hold divers (BHDs; sled‐assisted dives to 15, 25 or 40 m) underwent underwater and surface arterial blood gas (ABG) sampling.
Matteo Paganini, Tommaso Antonio Giacon, Simona Mrakic‐Sposta, Luca Martani, Danilo Cialoni, Lorenzo Zucchi, Vincenzo Maffei, Rosario Cifali, Mariano Marmo, Enrico M Camporesi, Richard E Moon, Gerardo Bosco   +11 more
wiley   +1 more source

Extracellular ionic concentration modulates arrhythmias in a simulated population of human ventricular myocytes with long QT syndrome type 3

The Journal of Physiology, EarlyView.
Abstract figure legend Schematic illustrating the in silico study pipeline. A total of 50,000 virtual myocytes were generated, which were then filtered to 7093 myocytes that fit experimentally constrained biomarkers for physiological electrical and calcium behaviour under wild‐type conditions.
Katherine Flannery, Jacob A. Miller, Steven Poelzing, Seth H. Weinberg   +3 more
wiley   +1 more source