Results 161 to 170 of about 260,095 (209)
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Connexins and Cardiac Arrhythmias
2006During cardiac remodeling, impulse conduction in the heart is altered by changes in excitability, electrical coupling, and tissue architecture. The impairment of normal impulse conduction is one of the factors that increases the propensity for arrhythmias. This chapter focuses on the relationship between electrical coupling between ventricular myocytes
van Rijen, Harold V. M. +4 more
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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 ...
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Mechanisms of Cardiac Arrhythmias
Annual Review of Physiology, 1982The mechanisms involved in the disruption of the rate and rhythm of the heart have classically been categorized' as those due to abnormalities in impulse formation (automaticity) or those due to abnormalities in impulse conduction (59, 66). Current knowledge has expanded these concepts to include additional mechanisms of arrhythmogenesis that are just ...
J F, Spear, E N, Moore
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A cardiac arrhythmia simulator
Journal of Medical Engineering & Technology, 1977The ability to select recorded or synthesised cardiac arrhythmias for display on a typical ECG cathode-ray-tube ;creen, rather than to refer to textbook photographs has been found to be of great advantage to the nurse or medical student. Not only is the transition from academic study to the practical recognition of continually changing and fading ECG ...
A. S. Brown +2 more
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Cardiac Arrhythmias and Pregnancy
Current Treatment Options in Cardiovascular Medicine, 2018In this review, the challenges of managing cardiac arrhythmias and syncope in the setting of pregnancy will be discussed.Arrhythmias in pregnancy are increasing, as diagnostic and therapeutic options have advanced and women are older at the time of gestation. Atrial fibrillation has become the most common arrhythmia in pregnancy.
Ciorsti, MacIntyre +2 more
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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
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Magnetism and Cardiac Arrhythmias
Cardiology in Review, 2004Low-level electromagnetic fields (EMFs) have been used to treat various neurologic disorders. In the present study, we applied micro Gauss (microG) levels of EMFs either to the vagosympathetic nerve trunks, dissected in the neck, or across the chest in anesthetized dogs.
Benjamin J, Scherlag +5 more
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Treatment of Cardiac Arrhythmias
Circulation, 1953The management of cardiac arrhythmias has been revolutionized by the use of new diagnostic and therapeutic modalities. The development and advancement of both pharmacologic and nonpharmacologic therapies, particularly radiofrequency catheter ablation and new implantable devices, have resulted in better treatment, suppression, and frequently cure of ...
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The American Journal of Emergency Medicine, 1995
Cardiac dysfunction is often manifested as arrhythmia, with disruption of the normal periodicity and regularity of electromechanical activity. Cardiac arrhythmias, or abnormalities of cardiac rhythm, are associated with a diverse group of conditions, including congenital, metabolic, structural, physiological, and immunological, and infectious ...
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Cardiac dysfunction is often manifested as arrhythmia, with disruption of the normal periodicity and regularity of electromechanical activity. Cardiac arrhythmias, or abnormalities of cardiac rhythm, are associated with a diverse group of conditions, including congenital, metabolic, structural, physiological, and immunological, and infectious ...
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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
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