Results 141 to 150 of about 36,622 (316)

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

Unveiling sex dimorphism in the healthy cardiac anatomy: Fundamental differences between male and female heart shapes

The Journal of Physiology, EarlyView.
Abstract figure legend We present a shape modelling‐based morphological analysis of sex differences in cardiac anatomy. We conduct our analysis on 456 healthy subjects from the UK Biobank (227M/229F) to uncover sex‐based differences in healthy cardiac morphology.
Beatrice Moscoloni, Cameron Beeche, Julio A. Chirinos, Patrick Segers, Mathias Peirlinck   +4 more
wiley   +1 more source

New Concepts in Pacemaker Syndrome [PDF]

, 2004
After implantation of a permanent pacemaker, patients may experience severe symptoms of dyspnea, palpitations, malaise, and syncope resulting from pacemaker syndrome.
Estes, Mark NA III, Farmer, Michael D, Link, Mark S   +2 more
core  

Maternal Primary Sjögren's Syndrome Complicated by Irreversible Fetal Third‐Degree Congenital Heart Block: A Case Report From Nepal

Clinical Case Reports, Volume 13, Issue 11, November 2025.
ABSTRACT In pregnancies of anti‐Ro/SSA– and anti‐La/SSB–positive women with primary Sjögren's syndrome, third‐degree fetal congenital heart block is usually irreversible despite corticosteroids. Preconception counseling, hydroxychloroquine prophylaxis, and serial fetal echocardiography from 16 weeks are essential to enable timely counseling, including ...
Priety Shah, Pramit Jaiswal, Pukar Adhikari, Sumit Kumar Jaiswal, Kripasana Parajuli   +4 more
wiley   +1 more source

Atrioventricular reentry. Lessons learned from radiofrequency modification of the node. [PDF]

, 1992
Melvin M. Scheinman
openalex   +1 more source

Electrical Remodeling of Pressure Overloaded Rat Heart Is Attenuated if Imposed During Proliferative Cardiac Growth

Acta Physiologica, Volume 241, Issue 11, November 2025.
ABSTRACT Aim Left ventricular pressure overload (LVPO) in adults is associated with adverse electrical remodeling, characterized by reduced conduction velocity (CV). However, the progression of LVPO differs when imposed during the proliferative phase of cardiac development.
Eva Nekvindova, Jaroslav Hrdlicka, Almos Boros, Michaela Slegrova, Alena Kvasilova, Vojtech Skop, Jan Halberstat, Kristyna Holzerova, Jan Neckar, David Sedmera, Veronika Olejnickova   +10 more
wiley   +1 more source

Histologic Examination of the Origin of the Action Potential Characteristically Obtained from the Region Bordering the Atrioventricular Node

, 1959
Toyomi Sano, Minoru Tasaki, Takio Shimamoto   +2 more
openalex   +1 more source

Effect of nitric oxide modulation on the basic and rate-dependent electrophysiological properties of AV-node in the isolated heart of rabbit: The role of adrenergic and cholinergic receptors [PDF]

, 2010
Introduction: Recent studies showed that nitrergic system have specific modulatory effects on electrophysiological properties of atrioventricular (AV) node.
Alizadeh, A.M., Badaghabadi, F., Changizi, S., Davarian, A., Khori, V., Nayebpour, M., Pourabouk, M., Salaki, S., Salehi, A., Shirafkan, A.A.   +9 more
core  

Reversible Cardio‐Renal‐Cerebral Syndrome in a Dog: A Case Report

Journal of Veterinary Internal Medicine, Volume 39, Issue 6, November/December 2025.
ABSTRACT A 14‐year‐old miniature Pinscher was presented with azotemia, severe hyperkalemia, and oliguria caused by decompensation of chronic renal disease, along with bradycardia resulting from third‐degree atrioventricular (AV) block. Supportive medical treatment was instituted for the oliguria, azotemia, and hyperkalemia.
Gianira Candelario, George Kramer, Brienne Williams, Samantha Siess, Nikki Gaudette, Laura Patterson Rosa   +5 more
wiley   +1 more source

Inhibition of L‐type calcium current by propafenone in single myocytes isolated from the rabbit atrioventricular node [PDF]

, 1997
Jules C. Hancox, John S. Mitcheson
openalex   +1 more source