Results 111 to 120 of about 35,622 (245)

Mathematical model of the zebrafish ventricular cardiomyocyte action potential and calcium transient

The Journal of Physiology, EarlyView.
Abstract figure legend This study presents the development and validation of the first biophysically detailed computational model of the zebrafish ventricular action potential (AP). The model is based on a human cardiomyocyte framework and reparameterized using published and newly generated patch‐clamp recordings of zebrafish ionic currents.
Ludovica Cestariolo, Zachary D. Long, Arie O. Verkerk, Jose M. Ferrero, T. Alexander Quinn, Jose F. Rodriguez Matas   +5 more
wiley   +1 more source

Not only Van Gogh: a case of BRASH syndrome with concomitant digoxin toxicity

Journal of Medical Case Reports
Background Bradycardia, renal failure, atrioventricular (AV) node blocking, shock, and hyperkalemia syndrome is a potentially life-threatening clinical condition characterized by bradycardia, renal failure, atrioventricular (AV) node blocking, shock, and
Ilaria Costantini, Giovanni Mantelli, Massimo Carollo, Lorenzo Losso, Elia Morando, Matilde Bacchion, Mariapaola Castri, Lucia Drezza, Giorgio Ricci   +8 more
doaj   +1 more source

High resolution 3-Dimensional imaging of the human cardiac conduction system from microanatomy to mathematical modeling [PDF]

, 2017
Cardiac arrhythmias and conduction disturbances are accompanied by structural remodelling of the specialised cardiomyocytes known collectively as the cardiac conduction system.
A Atkinson, B Schmitt, CM Ambrosi, CM Ambrosi, D Sánchez-Quintana, E VR de Castroviejo, F Davies, GV Chow, H Dobrzynski, H Dobrzynski, H Kurosawa, ID Greener, J Li, J Zhao, JC Hutchinson, JC Jarvis, KH Yiu, KHWJ Tusscher ten, M Loukas, M Smerup, M Smerup, MR Boyett, MR Boyett, N Chandler, N Piazza, N-Y Chan, NJ Chandler, NS Jeffery, O Aslanidi, OV Aslanidi, OV Aslanidi, PM Gignac, PW Oosthoek, RC Truex, RH Anderson, RH Anderson, RS Stephenson, RS Stephenson, S Dawkins, S Inada, S Yoo, T Nikolaidou, T-a Matsuyama, TA Csepe, TD Butters, VV Fedorov, VV Fedorov, WJ Hucker, Y Wang, Y-S Ko   +49 more
core   +1 more source

An integrated platform for 2‐D and 3‐D optical and electrical mapping of arrhythmias in Langendorff‐perfused rabbit hearts

The Journal of Physiology, EarlyView.
Abstract figure legend Integrated multimodal platform for panoramic cardiac mapping in isolated heart experiments. On the left, an image of the experimental setup during data acquisition showing a Langendorff‐perfused rabbit heart surrounded by three optical cameras (CAM A, B and C) positioned 120° apart, each coupled with high‐power LEDs for panoramic
Jimena Siles, Vinícius Silva, Tainan Neves, Italo Sandoval, Angélica Quadros, Giovanni Weber, Óscar Barquero, Ilija Uzelac, João Salinet   +8 more
wiley   +1 more source

Radiofrequency catheter ablation of accessory pathways and modification of atrioventricular node in children and adolescents

The Turkish Journal of Pediatrics, 1996
Catheter ablation of an accessory pathway and atrioventricular node modification using 550 kHz radiofrequency was attempted in 23 children and adolescents between five and 19 years of age (mean = 15.7 years). Fifteen children had accessory-pathway-
A Celiker, P Brugada
doaj  

Predictive factors of atrioventricular conduction disorders [PDF]

Romanian Medical Journal
Atrioventricular conduction disorders represent an alteration in the normal function of the heart’s electrical conduction system, a system that connects the atria and ventricles through the atrio-ventricular node and the His-Purkinje system. Consequently,
Carmen Marina Deutsch, Elisabeta Badila, Adriana Iliesiu   +2 more
doaj   +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

Complete Heart Block Lacking Functional Anatomical Impairment in the Conduction System

Pakistan Journal of Medicine and Dentistry
Introduction: Complete heart block also known as third-degree atrioventricular block (AV block) is a condition in which there is no conduction of the impulse produce in the sinoatrial node (SA node) in the atrium to the ventricle.1 Complete heart ...
Shazia Yasir, Komal Owais, Ishratullah
doaj  

Diastolic And Systolic Right Ventricular Dysfunction Precedes Left Ventricular Dysfunction In Patients Paced From Right Ventricular Apex [PDF]

, 2006
Background: Cardiac dysfunction after right ventricular (RV) apical pacing is well known but its extent, time frame of appearance and individual effect on left ventricular (LV), RV systolic and diastolic parameters has not evaluated in a systematic ...
Bansal, Sandeep, M, Hasan, MK, Makharia, Puri, Aniket, RK, Saran, SK, Dwivedi, VK, Puri, VS, Narain   +7 more
core  

Complete atrial-specific knockout of sodium-calcium exchange eliminates sinoatrial node pacemaker activity. [PDF]

, 2013
The origin of sinoatrial node (SAN) pacemaker activity in the heart is controversial. The leading candidates are diastolic depolarization by "funny" current (If) through HCN4 channels (the "Membrane Clock" hypothesis), depolarization by cardiac Na-Ca ...
Alber, Sarah, Goldhaber, Joshua I, Groenke, Sabine, Jordan, Maria C, Karagueuzian, Hrayr S, Lamp, Scott T, Larson, Eric D, Nakano, Atsushi, Nakano, Haruko, Philipson, Kenneth D, Proenza, Catherine, Ren, Xiaoyan, Roos, Kenneth P, Zhang, Rui   +13 more
core   +2 more sources