Results 251 to 260 of about 149,384 (349)

Haemodynamic‐energetic mechanism of sudden cardiac death in severe aortic stenosis: A modelling study

The Journal of Physiology, EarlyView.
Abstract figure legend A sudden decrease in total peripheral resistance (TPR), as observed during vasovagal syncope, leads to a reduction in aortic systolic pressure (AO pressure) and afterload. In healthy individuals, the consequent decrease in left ventricular systolic pressure (LV pressure) lowers stroke work and myocardial energy expenditure.
Martin Dvoulety, Michal Sitina
wiley   +1 more source

The P Wave: Indicator of Atrial Enlargement [PDF]

, 2010
Loftis, Patrick
core   +1 more source

The influence of delayed ventricular activation on cardiac repolarization: Insights from electrocardiographic imaging

The Journal of Physiology, EarlyView.
Abstract figure legend This study examines the relationships between activation and repolarization times in epicardial reconstructed unipolar electrograms derived from ECG‐imaging in patients with normal and delayed ventricular activation. In patients with a narrow QRS‐complex, ECG‐imaging reveals significant variability in the activation ...
Karin C. Smits, Ted E.M. Lempers, Marc Strik, Job Stoks, Roel Meiburg, Matthijs J.M. Cluitmans, Paul G.A. Volders, Kevin Vernooy, Frits W. Prinzen, Uyên Châu Nguyên   +9 more
wiley   +1 more source

Repolarization adaptation to rapid change in heart rate in human models – a review

The Journal of Physiology, EarlyView.
Abstract figure legend This review focuses on non‐invasive assessment of repolarization duration and dispersion (heterogeneity) adaptation to change in heart rate (HR). HR was increased incrementally by left atrial pacing during an electrophysiology (EP) study and by a bolus injection of atropine and in a step up/down fashion by repeated right atrial ...
Lennart Bergfeldt, Karl‐Jonas Axelsson, Pia Dahlberg, Farzad Vahedi, Gunilla Lundahl, Lennart Gransberg   +5 more
wiley   +1 more source

Paroxysmal AF susceptibility using P wave Parameters in Sinus Rhythm

, 2010
Aline Cabasson, Lam Dang, Jean-Marc Vésin, Lukas Kappenberger   +3 more
openalex   +1 more source

Virtual left atrial appendage occlusion in paroxysmal atrial fibrillation during sinus rhythm predicts variable reductions in blood stasis

The Journal of Physiology, EarlyView.
Abstract figure legend Stasis before and after left atrial appendage occlusion (LAAO) in participants with high stasis and low stasis. Stasis is predominantly located in LAA and reduced after LAAO. But in the participant with high stasis, stasis remains close to the occlusion site, indicating a potential risk for device related thrombi.
Sophia Bäck, Jonas Lantz, Iulia Skoda, Lars O. Karlsson, Anders Persson, Carl‐Johan Carlhäll, Tino Ebbers   +6 more
wiley   +1 more source

Termination of atrial arrhythmia and restoration of sinus rhythm during pulsed field ablation with a pentaspline catheter in patients with persistent atrial fibrillation. [PDF]

Europace
Moltrasio M, Iacopino S, Solimene F, Bianchi S, Schiavone M, Themistoclakis S, Rossillo A, Bertini M, Zirolia D, Volpicelli M, Zingarini G, Dello Russo A, Malacrida M, Zucchelli G, Tondo C.   +14 more
europepmc   +1 more source

FAILURE OF SINO-ATRIAL NODAL TRANSPLANTATION FOR THE TREATMENT OF EXPERIMENTAL COMPLETE HEART BLOCK IN DOGS. [PDF]

, 1963
AXTELL, HK, HERMANN, G, MARCHIORO, TL, STARZL, TE, WADDELL, WR   +4 more
core  

Computational modelling of the pro‐ and antiarrhythmic effects of atrial high rate‐dependent trafficking of small‐conductance calcium‐activated potassium channels

The Journal of Physiology, EarlyView.
Abstract figure legend Small‐conductance calcium‐activated potassium (SK) channels are important for atrial repolarization and can be targeted for atrial‐specific antiarrhythmic treatments. We developed a computational model with a calcium sensor to study the effects of increased pacing rate (5 Hz), which enhances SK‐channel gating and forward ...
Stefan Meier, Dobromir Dobrev, Paul G. A. Volders, Jordi Heijman   +3 more
wiley   +1 more source

Effect of heart rate on B-type natriuretic peptide in sinus rhythm. [PDF]

Sci Rep
Fukushima K, Ogawa K, Kawai M, Yoshimura M.   +3 more
europepmc   +1 more source