Results 221 to 230 of about 169,604 (267)
Some of the next articles are maybe not open access.
Hypertension and Cardiac Arrhythmias
Current Pharmaceutical Design, 2007Arterial hypertension is a widespread disease and one of important yet under-recognized and under-treated causes of atrial and ventricular arrhythmias. Hypertrophy of cardiac muscle in hypertensive patients is characterized not only by increased myocardial mass, but also by proliferation of fibrous tissue and decreased intercellular coupling, that lead
Audrius, Aidietis +2 more
openaire +2 more sources
Cardiac Surgery for Arrhythmias
Journal of Cardiovascular Electrophysiology, 2004Cardiac arrhythmia surgery was initiated in 1968 with the first successful division of an accessory AV connection for the Wolff‐Parkinson‐White syndrome. Subsequent surgical procedures included the left atrial isolation procedure and right atrial isolation procedure for automatic atrial tachycardias, discrete cryosurgery of the AV node for AV nodal ...
openaire +4 more sources
Dynamics and Cardiac Arrhythmias
Journal of Cardiovascular Electrophysiology, 2006Cardiac arrhythmias, characterized by single or multiple reentrant circuits, represent a dynamic phenomenon in an excitable medium. In this review, we provide a brief overview of how cardiac action potential duration restitution, conduction velocity restitution, and intracellular calcium cycling regulate the dynamics of action potential excitation and ...
Zhilin, Qu, James N, Weiss
openaire +2 more sources
Mechanisms of Cardiac Arrhythmias
Revista Española de Cardiología (English Edition), 2012Cardiac arrhythmias are prevalent among humans across all age ranges and may occur in the setting of underlying heart disease as well as in structurally normal hearts. While arrhythmias are widely varied in their clinical presentations, they possess shared electrophysiologic properties at the cellular level.
Larraitz, Gaztañaga +2 more
openaire +2 more sources
Stroke and cardiac arrhythmias
Journal of Stroke and Cerebrovascular Diseases, 2002Stroke is frequently followed by electrocardiographic (ECG) changes. The aim of the present study was to evaluate the global incidence of these changes after ischemic or hemorrhagic strokes, but it focused on cardiac arrhythmias. In ischemic strokes, these were correlated with the side of the lesion(s).
Ornella, Daniele +3 more
openaire +2 more sources
Alcohol and Cardiac Arrhythmias
Alcoholism: Clinical and Experimental Research, 1998Chronic alcohol overconsumption increases the risk for sudden death presumably due to ventricular arrhythmias. This paper is a review of the mechanisms behind alcohol‐induced arrhythmias and describe the incidence of alcohol‐related ventricular arrhythmias.
openaire +2 more sources
Cardiac arrhythmias in pregnancy
Seminars in Perinatology, 2014As more women with repaired congenital heart disease survive to their reproductive years and many other women are delaying pregnancy until later in life, a rising concern is the risk of cardiac arrhythmias during pregnancy. Naturally occurring cardiovascular changes during pregnancy increase the likelihood that a recurrence of a previously experienced ...
Robert J, Knotts, Hasan, Garan
openaire +2 more sources
Mechanisms for cardiac arrhythmias
Experientia, 1987Possible cellular electrophysiological mechanisms for arrhythmias have been investigated through studies of isolated cardiac tissues. Records through extracellular and intracellular electrodes indicate that arrhythmias may result from either focal or non-focal mechanisms.
B F, Hoffman, K H, Dangman
openaire +2 more sources
Proceedings of the 1991 ACM/IEEE conference on Supercomputing - Supercomputing '91, 1991
To understand the behavior of the heart under chaotic conditions, a computer simulation was made considering it as coupled biological oscillators. Piece-wise linear and non-linear equations were used to characterize the observed phase response behavior of the myocardial cells.
openaire +1 more source
To understand the behavior of the heart under chaotic conditions, a computer simulation was made considering it as coupled biological oscillators. Piece-wise linear and non-linear equations were used to characterize the observed phase response behavior of the myocardial cells.
openaire +1 more source
Hypocalcemia and Cardiac Arrhythmias
Archives of Pediatrics & Adolescent Medicine, 1968THE BEST KNOWN clinical effect on the heart of hypocalcemia is prolongation of the QT interval, ie, prolongation of electrical systole.1-6Only recently has cardiac arrhythmia been reported as a clinical manifestation of hypocalcemia.7,8This report describes a child with hypocalcemic vitamin D deficient rickets who presented with bizarre cardiac ...
J D, Johnson, R, Jennings
openaire +2 more sources