Results 71 to 80 of about 98,015 (277)

Attenuation of Post-Shock Increases in Brain Natriuretic Peptide with Post Shock Overdrive Pacing [PDF]

open access: yes, 2010
Background: Predischarge defibrillation threshold testing is often performed a few days after ICD implantation in order to validate defibrillation thresholds obtained at the time of implant.
Budeus, Marco   +7 more
core   +2 more sources

Estimation of Parameters for an Archetypal Model of Cardiomyocyte Membrane Potentials [PDF]

open access: yesarXiv, 2021
Contemporary realistic mathematical models of single-cell cardiac electrical excitation are immensely detailed. Model complexity leads to parameter uncertainty, high computational cost and barriers to mechanistic understanding. There is a need for reduced models that are conceptually and mathematically simple but physiologically accurate.
arxiv  

Assessing the impact and safety of implantable cardioverter defibrillators in treating catecholaminergic polymorphic ventricular tachycardia: a systematic review and meta-analysis protocol

open access: yesBMJ Open
Background While the guidelines acknowledge the anticipated benefits of using an implantable cardioverter defibrillator (ICD) in individuals with catecholaminergic polymorphic ventricular tachycardia (CPVT).
Xianhui Zhou   +7 more
doaj   +1 more source

Cardiac parasympathetic modulation in the setting of radiofrequency ablation for atrial fibrillation

open access: yesArchives of Medical Science, 2019
The cardiac autonomic nervous system plays an important role in the genesis and maintenance of atrial fibrillation. Although, pulmonary vein isolation is the cornerstone in today’s approach to atrial fibrillation ablation, a considerable proportion of ...
Thiago G. Osório   +4 more
doaj   +1 more source

Cardiac Alternans Arising from an Unfolded Border-Collision Bifurcation [PDF]

open access: yesarXiv, 2007
Following an electrical stimulus, the transmembrane voltage of cardiac tissue rises rapidly and remains at a constant value before returning to the resting value, a phenomenon known as an action potential. When the pacing rate of a periodic train of stimuli is increased above a critical value, the action potential undergoes a period-doubling ...
arxiv  

DNA methylation-based telomere length is more strongly associated with cardiovascular disease and long-term mortality than quantitative polymerase chain reaction-based telomere length: evidence from the NHANES 1999–2002

open access: yesClinical Epigenetics
Background Telomere length (TL) serves as a pivotal gauge of cellular aging, with shorter TL linked to various age-related ailments. Recently, a DNA methylation-based TL estimator, known as DNAmTL, has emerged as a novel TL measurement tool.
Qianhui Wang   +7 more
doaj   +1 more source

Introduction [PDF]

open access: yes, 1971
This issue of the Medical College of Virginia Quarterly is an edited form of the proceedings of the Cardiac Pacing symposium held in Williamsburg, Virginia on April 16 and 17, 1971.
Baird, Charles L., Jr.
core   +1 more source

Mechanism of Discordant Alternans in Spatially Homogeneous Tissue [PDF]

open access: yesarXiv, 2000
Discordant alternans,the phenomenon of 2 separate cardiac tissue locations exhibiting action potential duration (APD) alternans of opposite phase, appears to be a potential mechanism for electrocardiographic T wave alternans, but its initiation mechanism is unknown. We studied behavior of one- and two- dimensional cardiac tissue spatially homogenous in
arxiv  

Défibrillateur automatique implantable (DAI): principes de base et indications cliniques actuelles [Implantable cardiac defibrillator (ICD): basics and present clinical guidelines]. [PDF]

open access: yes, 2013
An implantable cardiac defibrillator (ICD) is a cardiac implantable electronic device that is capable of identifying and treating ventricular arrhythmias.
Carroz, P., Fromer, M., Graf, D.
core  

Temporary epicardial cardiac resynchronisation versus conventional right ventricular pacing after cardiac surgery: study protocol for a randomised control trial [PDF]

open access: yes, 2012
Background: Heart failure patients with stable angina, acute coronary syndromes and valvular heart disease may benefit from revascularisation and/or valve surgery. However, the mortality rate is increased- 5-30%.
A Auricchio   +33 more
core   +3 more sources

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