Results 31 to 40 of about 83,638 (203)

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

Assessing Cardiac Sympatho-Vagal Balance Through Wavelet Transform Analysis of Heart Rate Variability

open access: yesApplied Sciences
Heart rate variability (HRV), which is the variation between consecutive heartbeats, reflects the electrical activity of the heart and provides insight into the autonomic nervous system (ANS) function.
A.M. Nelushi   +3 more
doaj   +1 more source

The effect of adenotonsillectomy for childhood sleep apnoea on cardiorespiratory control

open access: yesERJ Open Research, 2016
The efficacy of adenotonsillectomy for relieving obstructive sleep apnoea symptoms in children has been firmly established, but its precise effects on cardiorespiratory control are poorly understood.
Mathias Baumert   +7 more
doaj   +1 more source

Automatic Mode Switching in Atrial Fibrillation [PDF]

open access: yes, 2005
Automatic mode switching (AMS) algorithms were designed to prevent tracking of atrial tachyarrhythmias (ATA) or other rapidly occurring signals sensed by atrial channels, thereby reducing the adverse hemodynamic and symptomatic consequences of a rapid ...
Antonio De, Simone   +2 more
core  

Bidirectional ventricular tachycardia in cardiac sarcoidosis. [PDF]

open access: yes, 2016
A 73-year-old man with history of pulmonary sarcoidosis was found to have runs of non-sustained bidirectional ventricular tachycardia (BVT) with two different QRS morphologies on a Holter monitor.
Benjamin, Mina M   +4 more
core   +2 more sources

Arrhythmia induction using isoproterenol or epinephrine during electrophysiology study for supraventricular tachycardia [PDF]

open access: yes, 2018
Background Electrophysiology study (EPS) is an important part of the diagnosis and workup for supraventricular tachycardia (SVT). Provocative medications are used to induce arrhythmias, when they are not inducible at baseline. The most common medication
Padanilam, Benzy J.   +4 more
core   +1 more source

Basal parasympathetic deficits in C9orf72 hexanucleotide repeat expansion carriers relate to smaller frontoinsula and thalamus volume and lower empathy

open access: yesNeuroImage: Clinical
Diminished basal parasympathetic nervous system activity is a feature of frontotemporal dementia that relates to left frontoinsula dysfunction and empathy impairment.
Ashlin R. K. Roy   +16 more
doaj   +1 more source

Safety and effectiveness of surgical treatment of atrial fibrillation using nitrous oxide-based cryoablation

open access: yesÇukurova Üniversitesi Tıp Fakültesi Dergisi, 2016
Purpose: Chronic Atrial Fibrillation (AF) is the most prevalent arrhytmia in patients undergoing cardiac surgery. In this study we aim to share our cryoablation experiences.
Hasan Uncu   +4 more
doaj   +1 more source

Respiratory sinus arrhythmia in Chagas disease [PDF]

open access: yesAutonomic Neuroscience, 2014
We applied the respiratory sinus arrhythmia (RSA) quantification algorithm to 24-hour ECG recordings of Chagas disease (ChD) patients with (G1, n=148) and without left ventricular dysfunction (LVD) (G2, n=33), and in control subjects (G0, n=28). Both ChD groups displayed a reduced RSA index; G1=299 (144-812); G2=335 (162-667), p=0.011, which was ...
Neves, Victor Ribeiro   +4 more
openaire   +2 more sources

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  

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