Results 91 to 100 of about 9,952 (192)

Rare Case of Rapidly Worsening REM Sleep Induced Bradycardia

Case Reports in Cardiology, 2015
Sinoatrial arrest also known as sinus pause occurs when sinoatrial node of the heart transiently ceases to generate the electrical impulse necessary for the myocardium to contract. It may last from 2.0 seconds to several minutes. Etiologies of sinoatrial
Ayyappa S. Duba, Suneetha Jasty, Ankit Mahajan, Vijay Kodadhala, Raza Khan, Prithviraj Rai, Mohammad Ghazvini   +6 more
doaj   +1 more source

Bachmann's Bundle‐Related Atrial Tachycardias Following Catheter Ablation of Persistent Atrial Fibrillation

Journal of Cardiovascular Electrophysiology, Volume 37, Issue 3, Page 561-571, March 2026.
ABSTRACT Background Atrial tachycardias (AT) after radiofrequency ablation (RFA) of atrial fibrillation (AF) may utilize Bachmann's bundle (BB). Due to their epicardial location, these ATs remain poorly understood. Objective To describe the electrophysiologic and anatomic basis of BB‐related ATs.
Nate Christian‐Miller, Mohammed Al‐Sadawi, Muazzum Shah, Kelly Arps, Amrish Deshmukh, Jackson J. Liang, Krit Jongnarangsin, Fred Morady, Hakan Oral, Aman Chugh, Michael Ghannam   +10 more
wiley   +1 more source

Simplified 2D Bidomain Model of Whole Heart Electrical Activity and ECG Generation

Measurement Science Review, 2014
The aim of this study was the development of a geometrically simple and highly computationally-efficient two dimensional (2D) biophysical model of whole heart electrical activity, incorporating spontaneous activation of the sinoatrial node (SAN), the ...
Sovilj Siniša, Magjarević Ratko, Abed Amr Al, Lovell Nigel H., Dokos Socrates   +4 more
doaj   +1 more source

Systolic‐dominant coronary flow in rats and mice: Challenging the diastolic paradigm across conscious and anaesthetized states

Experimental Physiology, Volume 111, Issue 3, Page 684-699, 1 March 2026.
Abstract Extensive research in humans, dogs, rabbits, rats, mice and other mammals has consistently demonstrated that coronary blood flow (CBF) peaks during ventricular diastole. For example, studies using transthoracic Doppler echocardiography in anaesthetized rats and mice, isolated blood‐perfused rat hearts and Doppler probes sutured to the ...
Heidi L. Lujan, Theodore W. Kurtz, Stephen E. DiCarlo   +2 more
wiley   +1 more source

Atrial fibrillation, sinoatrial and atrioventricular node dysfunction in a mouse model of heart failure with preserved ejection fraction

Experimental Physiology, Volume 111, Issue 3, Page 963-977, 1 March 2026.
Summary of the timeline of characterized events related to atrial fibrilation (AF) and diastolic dysfunction in a mouse heart failure with preserved ejection fraction (HFpEF) model. Three weeks after the initiation of the diet regimen with high fat diet (HFD) and Nω‐nitro‐l‐arginine methyl ester (l‐NAME) in drinking water to induce HFpEF, significantly
Bernadin Ndongson‐Dongmo, Reinhard Bauer, Finn Olav Levy   +2 more
wiley   +1 more source

Cardiac‐specific Kv1.1 deficiency alters cardiomyocyte electrophysiology without modifying overall cardiac function or arrhythmia susceptibility

Experimental Physiology, Volume 111, Issue 3, Page 1120-1133, 1 March 2026.
Abstract The leading cause of epilepsy‐related mortality is sudden unexpected death in epilepsy (SUDEP), resulting from seizure‐induced cardiorespiratory arrest by mechanisms that remain unresolved. Mutations in ion channel genes expressed in both brain and heart represent SUDEP risk factors because they can disrupt neural and cardiac rhythms ...
Kelsey Halvorson, Man Si, Krystle Trosclair, Ellen Aughenbaugh, Maxine Parkinson, Nicole M. Gautier‐Hall, Megan Watts, Frederica Kizek, Md. Shenuarin Bhuiyan, Paari Dominic, Kathryn A. Hamilton, Edward Glasscock   +11 more
wiley   +1 more source

Sinoatrial Node Entrance Block [PDF]

Circulation, 1973
openaire   +4 more sources

Atrial fibrillation, an epiphenomenon of acute Stanford type‐A aortic dissection with suspected intimo‐intimal intussusception

Clinical Case Reports, 2018
Key Clinical Message Supraventricular arrhythmias can sometimes be “only” epiphenomena appearing during acute hypoxia, pneumonia, pulmonary embolism, and thrombosis. Indeed, atrial fibrillation is not rare in acute aortic dissection as it is estimated in
Michele M. Ciulla, Patrizia Vivona, Alessandro Lemos, Fabiola Sozzi, Ugo Cioffi, Alberto Testori   +5 more
doaj   +1 more source

Resting neuroendocrine markers in relation to acute mental stress‐induced adrenergic reactivity profiles in adults: The SABPA study

Physiological Reports, Volume 14, Issue 6, March 2026.
A grapical summary of predominant alpha and beta repsonders' neuroendocrine profile in the SABAP cohort. Abstract Stress‐induced hemodynamic reactivity was categorized as predominant alpha (α)‐ and beta (β)‐adrenergic reactivity profiles. Within these profiles, we investigated resting neuroendocrine markers, their associations with hemodynamic ...
Dewald Naudé, Wayne Smith, Roland von Känel, Annemarie Wentzel   +3 more
wiley   +1 more source

Electrophysiological and sick sinus syndrome effects of Remdesivir challenge in guinea-pig hearts

Frontiers in Physiology
Remdesivir (RDV) is the first drug approved by the FDA for clinical treatment of hospitalized patients infected with COVID-19 because it has been shown to have good antiviral activity against a variety of viruses, including Arenaviridae and Coronaviridae
Shuang Li, Liang Yue, Yulong Xie, Henggui Zhang, Henggui Zhang, Henggui Zhang   +5 more
doaj   +1 more source