Results 81 to 90 of about 44,174 (145)

Increased baseline ECG R-R dispersion predicts improvement in systolic function after atrial fibrillation ablation. [PDF]

open access: yes, 2019
BackgroundAtrial fibrillation (AF) is associated with left ventricular (LV) systolic dysfunction which may improve after AF ablation. We hypothesised that increased ventricular irregularity, as measured by R-R dispersion on the baseline ECG, would ...
Buch, Eric   +7 more
core   +1 more source

Electrophysiology Study for Complex Supraventricular Tachycardia in Congenital Heart Disease Patients With Single‐Ventricle Physiology

open access: yesJournal of the American Heart Association: Cardiovascular and Cerebrovascular Disease, 2016
BackgroundSupraventricular tachycardia (SVT) is common in complex congenital heart disease (CCHD) patients with single‐ventricle physiology and may cause hemodynamic deterioration.
Shuenn‐Nan Chiu   +5 more
doaj   +1 more source

Arrhythmic risk in elderly patients candidates to transcatheter aortic valve replacement. predicative role of repolarization temporal dispersion [PDF]

open access: yes, 2019
Degenerative aortic valve stenosis (AS) is associated to ventricular arrhythmias and sudden cardiac death, as well as mental stress in specific patients. In such a context, substrate, autonomic imbalance as well as repolarization dispersion abnormalities ...
Crapanzano, Davide   +11 more
core   +1 more source

Narrow QRS Tachycardia with Alternate Wide QRS Beats: What is the Mechanism?

open access: yesIndian Pacing and Electrophysiology Journal, 2008
A 44-year old lady underwent electrophysiology study for recurrent palpitations and documented narrow QRS regular tachycardia. The baseline ECG showed subtle preexcitation that was easily manifest on atrial pacing.
Kartikeya Bhargava   +2 more
doaj  

Electrocardiography in horses, part 2: how to read the equine ECG [PDF]

open access: yes, 2010
The equine practitioner is faced with a wide variety of dysrhythmias, of which some are physiological. The recording of an exercise electrocardiogram (ECG) can help distinguish between physiological and pathological dysrhythmias, underlining the ...
De Clercq, Dominique   +5 more
core  

Catheter Ablation of Tachyarrhythmias in Small Children [PDF]

open access: yes, 2005
An estimated 80,000-100,000 radiofrequency ablation (RFA) procedures are performed in the United States each year.1 Approximately 1% of these are performed on pediatric patients at centers that contribute data to the Pediatric Radiofrequency Registry.2 ...
Blaufox, Andrew D.
core   +2 more sources

Catheter Ablation of Atrial Tachycardia in a Giant Right Atrium

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  

Interesting response to ventricular overdrive pacing during regular narrow QRS tachycardia. What is the mechanism?

open access: yesIndian Pacing and Electrophysiology Journal, 2020
33 year old gentleman has undergone an electrophysiology study for recurrent paroxysmal palpitation. During one of the episodes of palpitation a regular narrow QRS tachycardia was documented which has terminated with intravenous adenosine.
Krishna Kumar Mohanan Nair   +5 more
doaj  

RADIOFREQUENCY ABLATION IN ATRIAL TACHYCARDIA PAROXYSM ON EXAMPLE OF CLINICAL CASE

open access: yesJournal of V. N. Karazin Kharkiv National University: Series Medicine, 2018
The disappearance of atrial tachycardia paroxysms after radiofrequency catheter ablation (RFA) of ectopic focus in a left atrium is presented on example of clinical case. Atrial tachycardia paroxysms disappeared after ablation completely.
Brynza M. S.   +3 more
doaj  

Quality of Life in Patients with Implantable Cardioverter Defibrillators [PDF]

open access: yes, 2006
Background: The implantable cardioverter defibrillator (ICD) is a life saving device for individuals with life threatening ventricular arrhythmias. There is no doubt that it is a cost effective therapy in various congenital and acquired arrhythmogenic ...
Francis, Johnson   +2 more
core   +1 more source

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