Results 11 to 20 of about 277,450 (285)

Persistent Atrial Tachycardia Mimicking Inappropriate Sinus Tachycardia: A Case Report [PDF]

open access: yesJournal of Arrhythmia, 2011
We report on a 57-year-old man with atrial tachycardia mimicking inappropriate sinus tachycardia that was sustained for 4 months despite pharmacotherapy.
Toshihiko Kubo, MD   +7 more
doaj   +2 more sources

Catheter Ablation of Atrial Tachycardia in a Giant Right Atrium [PDF]

open access: yesJACC: Case Reports, 2020
A 25-year-old male patient with a giant right atrium presented with atrial tachycardia. Electroanatomic mapping revealed micro–re-entry from a low-voltage zone in the region of the right atrial appendage.
Thomas Kueffer, MS   +3 more
doaj   +3 more sources

Altered excitation-contraction coupling in human chronic atrial fibrillation [PDF]

open access: yes, 2012
This review focuses on the (mal)adaptive processes in atrial excitation-contraction coupling occurring in patients with chronic atrial fibrillation. Cellular remodeling includes shortening of the atrial action potential duration and effective refractory ...
Grandi, E., Pandit, S.V., Workman, A.J.
core   +7 more sources

Atrial cellular electrophysiological changes in patients with ventricular dysfunction may predispose to AF [PDF]

open access: yes, 2009
<b>Background:</b> Left ventricular systolic dysfunction (LVSD) is a risk factor for atrial fibrillation (AF), but the atrial cellular electrophysiological mechanisms in humans are unclear.
Marshall, G.E.   +11 more
core   +1 more source

The sophisticated architecture of the rat atrioventricular node [PDF]

open access: yes, 2005
In the mammalian heart, the action potential spontaneously generated in the sinoatrial (SA) node propagates through the atria to reach the atrioventricular (AV) node.
Yoo, Shin
core   +7 more sources

Duration of heart failure and the risk of atrial fibrillation: different mechanisms at different times? [PDF]

open access: yes, 2009
Chronic heart failure increases the risk of atrial fibrillation (AF), with the prevalence of AF paralleling the severity of heart failure.1 Factors that underlie this increased susceptibility to AF may include electrical, structural, and neurohumoral ...
Rankin, A.C., Workman, A.J.
core   +1 more source

A preliminary assessment of the effects of ATI-2042 in subjects with paroxysmal atrial fibrillation using implanted pacemaker methodology [PDF]

open access: yes, 2009
Aims ATI-2042 (budiodarone) is a chemical analogue of amiodarone with a half life of 7 h. It is electrophysiologically similar to amiodarone, but may not have metabolic and interaction side effects.
Camm, AJ   +5 more
core   +1 more source

Mechanisms of termination and prevention of atrial fibrillation by drug therapy [PDF]

open access: yes, 2011
Atrial fibrillation (AF) is a disorder of the rhythm of electrical activation of the cardiac atria. It is the most common cardiac arrhythmia, has multiple aetiologies, and increases the risk of death from stroke.
Smith, G.L.   +5 more
core   +1 more source

Ionic basis of a differential effect of adenosine on refractoriness in rabbit AV nodal and atrial isolated myocytes [PDF]

open access: yes, 1999
Methods: The whole cell patch clamp technique was used to record action potentials and ion currents in AV nodal and left atrial myocytes isolated enzymatically from rabbit hearts.
Kane, K.A., Rankin, A.C., Workman, A.J.
core   +1 more source

Characterisation of the Na, K pump current in atrial cells from patients with and without chronic atrial fibrillation [PDF]

open access: yes, 2003
<b>Objective:</b> To assess the contribution of the Na, K pump current (<i>I</i><sub>p</sub>) to the action potential duration (APD) and effective refractory period (ERP) in human atrial cells, and to investigate ...
Kane, K.A.   +5 more
core   +1 more source

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