Results 11 to 20 of about 115,833 (340)

Endogenous driving and synchronization in cardiac and uterine virtual tissues: bifurcations and local coupling [PDF]

, 2006
Cardiac and uterine muscle cells and tissue can be either autorhythmic or excitable. These behaviours exchange stability at bifurcations produced by changes in parameters, which if spatially localized can produce an ectopic pacemaking focus.
Benson, A.P., Clayton, R.H., Holden, A.V., Kharche, S., Tong, W.C.   +4 more
core   +1 more source

INTERNAL CARDIAC PACEMAKERS [PDF]

American Journal of Roentgenology, 1967
There are two main pacemaker systems used in controlling the cardiac rate in Severe heart-block patients: (1) asynchronous, and (2) synchronous or P-wave actuated.These pacemakers transmit current to the electrodes by direct wire or electromagnetic communications.The main techniques of applying the myocardial electrodes to the ventricles are: (1 ...
J, Tabrisky, W E, Jobe, M B, Newman, C E, Seibert   +3 more
openaire   +2 more sources

SHOX2 Overexpression Favors Differentiation of Embryonic Stem Cells into Cardiac Pacemaker Cells, Improving Biological Pacing Ability

Stem Cell Reports, 2015
Summary: When pluripotency factors are removed, embryonic stem cells (ESCs) undergo spontaneous differentiation, which, among other lineages, also gives rise to cardiac sublineages, including chamber cardiomyocytes and pacemaker cells. Such heterogeneity
Vittoria Ionta, Wenbin Liang, Elizabeth H. Kim, Reza Rafie, Alessandro Giacomello, Eduardo Marbán, Hee Cheol Cho   +6 more
doaj   +1 more source

Infection and migration incidence of cardiac implantable electrical devices in Japan: Web‐based survey results

Journal of Arrhythmia, 2020
Web‐based survey was conducted for experiences of cardiac implantable electrical device (CIED) infection and migration in Japan. A total of 155 cardiologists’ answer was collected in January, 2018.
Hiroshi Nakajima, Nobuhiro Nishii
doaj   +1 more source

Epithermal Neutron Beam Interference with Cardiac Pacemakers [PDF]

, 2010
Peer ...
Auterinen, Iiro, Hyvönen, H., Iivonen, P., Kankaanranta, L., Koivunoro, H., Kotiluoto, Petri, Pakarinen, S., Savolainen, S., Seppälä, T., Serén, Tom, Tenhunen, M.   +10 more
core   +1 more source

Prolonged PR interval, first-degree heart block and adverse cardiovascular outcomes: a systematic review and meta-analysis [PDF]

, 2016
Objective: First-degree atrioventricular block is frequently encountered in clinical practice and is generally considered a benign process. However, there is emerging evidence that prolonged PR interval may be associated with adverse outcomes. This study
Barker, Diane, Beynon, Rhys, Buchan, Iain, Kwok, Chun Shing, Loke, Yoon K, Mamas, Mamas A, Morley-Davies, Adrian, Myint, Phyo K, Nolan, James, Patwala, Ashish, Rashid, Muhammad, Satchithananda, Duwarakan   +11 more
core   +1 more source

Cardiac magnetic resonance in a patient with MRI-conditional pacemaker

Revista Portuguesa de Cardiologia, 2013
An implanted pacemaker is generally considered a contraindication for magnetic resonance imaging (MRI). The increasing number of indications for MRI and the rising prevalence of implanted cardiac pacemakers have prompted the recent development of MRI ...
António Miguel Ferreira, Lígia Mendes, Luís Soares, Maria da Graça Correia, Victor Gil   +4 more
doaj   +1 more source

Post-cardiac injury syndrome occurred two months after permanent dual-chamber pacemaker implantation

BMC Cardiovascular Disorders, 2023
Background Post cardiac injury syndrome (PCIS) is characterized by the development of pericarditis with or without pericardial effusion due to a recent cardiac injury. The relatively low incidence makes diagnosis of PCIS after implantation of a pacemaker
Ruiqi Zhang, Jiali Du, Meilin Liu
doaj   +1 more source

Potential effects of intrinsic heart pacemaker cell mechanisms on dysrhythmic cardiac action potential firing

Frontiers in Physiology, 2015
The heart’s regular electrical activity is initiated by specialized cardiac pacemaker cells residing in the sinoatrial node. The rate and rhythm of spontaneous action potential firing of sinoatrial node cells are regulated by stochastic mechanisms that ...
Yael eYaniv, Kenta eTsutsui, Edward eLakatta   +2 more
doaj   +1 more source

Harnessing cell reprogramming for cardiac biological pacing

Journal of Biomedical Science, 2023
Electrical impulses from cardiac pacemaker cardiomyocytes initiate cardiac contraction and blood pumping and maintain life. Abnormal electrical impulses bring patients with low heart rates to cardiac arrest.
Chih-Min Liu, Yi-Chun Chen, Yu-Feng Hu
doaj   +1 more source