Results 51 to 60 of about 37,718 (296)

A case of typical atrioventricular nodal (AVN) reentrant tachycardia confined to the compact AV node, showing a variety of rare electrophysiological findings, including eccentric AVN echoes

Journal of Arrhythmia, 2014
Herein, we report the case of a 49-year-old woman with typical atrioventricular nodal (AVN) reentrant tachycardia, confined to the compact atrioventricular node, showing numerous rare electrophysiological findings such as unique AVN reentrant echoes ...
Kazushi Tanaka, M.D., Ph.D., Shinji Shiotani, M.D., Keisuke Fukuda, M.D., Masahiko Fujihara, M.D., Akihiro Higashimori, M.D., Nobuyuki Morioka, M.D., Yoshiaki Yokoi, M.D., Ph.D., F.A.C.C., F.S.C.A.I., Osamu Fujimura, M.D., F.A.C.C.   +7 more
doaj   +1 more source

Pathophysiology of Cav1.3 L-type calcium channels in the heart

Frontiers in Physiology, 2023
Ca2+ plays a crucial role in excitation-contraction coupling in cardiac myocytes. Dysfunctional Ca2+ regulation alters the force of contraction and causes cardiac arrhythmias. Ca2+ entry into cardiomyocytes is mediated mainly through L-type Ca2+ channels,
Sahil Zaveri, Sahil Zaveri, Ujala Srivastava, Yongxia Sarah Qu, Yongxia Sarah Qu, Yongxia Sarah Qu, Mohamed Chahine, Mohamed Chahine, Mohamed Boutjdir, Mohamed Boutjdir, Mohamed Boutjdir   +10 more
doaj   +1 more source

Rate-dependent and antiarrhythmic reentrant tachycardia (AVNRT) effects of simvastatin in isolated rabbit atrioventricular nodal model [PDF]

, 2010
Background and purpose: Several previous studies have shown the direct and indirect effects of statins on supraventricular and ventricular arrhythmia. The purpose of the present study is to determine (1) whether Simvastatin modifies the rate-dependent ...
Alizadeh, A.M., Alizadeh, F., Badaghabadi, F., Changizi, S., Khori, V., Najafi, S.A., Nayebpour, M., Pourabouk, M., Salehi, A.   +8 more
core  

A study of the role of nitric oxide in the mechanism of action of hydroalcoholic extract of saffron (Crocus sativus) on the electrophysiological properties of the rabbit atrioventricular node [PDF]

, 2007
Biologically active substances of plant origin represent an essential branch of modern cardiovascular pharmacotherapy. Furthermore, drugs of plant origin have the advantage of weaker adverse effects and lower prices than synthetic drugs.
Khori, V., Mirabbas, A., Nayebpour, M., Rakhshan, E.   +3 more
core   +1 more source

Connecting the dots: A narrative review of the relationship between heart failure and cognitive impairment

ESC Heart Failure, Volume 12, Issue 2, Page 1119-1131, April 2025.
Abstract Large clinical data underscore that heart failure is independently associated to an increased risk of negative cognitive outcome and dementia. Emerging evidence suggests that cerebral hypoperfusion, stemming from reduced cardiac output and vascular pathology, may contribute to the largely overlapping vascular dementia and Alzheimer's disease ...
Mauro Massussi, Maria Giulia Bellicini, Marianna Adamo, Andrea Pilotto, Marco Metra, Alessandro Padovani, Riccardo Proietti   +6 more
wiley   +1 more source

Repeated misclassifications of tachycardia by an implantable cardiac defibrillator

Indian Pacing and Electrophysiology Journal, 2020
This case describes repeated misclassifications of SVT due to AV node reentry as VT by an ICD. This case illustrates the limitations of SVT-VT discrimination algorithm.
Atsuyuki Watanabe, Osamu Fujimura
doaj   +1 more source

Does the atrioventricular node conduct? [PDF]

Heart, 1989
It is difficult to be certain wh en the term "conduction" was first applied to the transfer of atrial activation to the ventricles .' In 1894, Engelmann used the word "Leitung", which can be translated as "connection" or as "conduction" .2 In 1906, Tawara described the atrioventricular node, which he termed "Das Reizleitungssystem des Herzens ".'
Meijler, F.L., Fisch, C.
openaire   +3 more sources

Prolongation of AV nodal refractoriness by Ruta graveolens in isolated rat hearts [PDF]

, 2008
Objectives: To evaluate concentration-dependent effects of total extract of Rusta graveolens and its purified alkaloid fraction on the nodal basic and functional properties.
Golalipour, M.J., Khori, V., Marjani, A., Nayebpour, M., Semnani, S.   +4 more
core  

Ventricular response during lungeing exercise in horses with lone atrial fibrillation [PDF]

, 2013
Reasons for performing the study Atrial fibrillation (AF) is the most important dysrhythmia affecting performance in horses and has been associated with incoordination, collapse and sudden death.
De Clercq, Dominique, Decloedt, Annelies, Sys, Stanislas, Van Der Vekens, Nicky, van Loon, Gunther, Verheyen, Tinne   +5 more
core   +2 more sources

Artificial intelligence in preclinical epilepsy research: Current state, potential, and challenges

Epilepsia Open, EarlyView.
Abstract Preclinical translational epilepsy research uses animal models to better understand the mechanisms underlying epilepsy and its comorbidities, as well as to analyze and develop potential treatments that may mitigate this neurological disorder and its associated conditions. Artificial intelligence (AI) has emerged as a transformative tool across
Jesús Servando Medel‐Matus, Cesar Santana‐Gomez, Ruby G. Escalante, Dominique Duncan, Pedro F. Viana, Giulia Sofia Cereda, Naoto Kuroda, Aristea S. Galanopoulou   +7 more
wiley   +1 more source