Results 51 to 60 of about 98,015 (277)
The effects of right ventricular apical pacing on left ventricular function. Stimulation of the right ventricular apex: should it still be the gold standard? [PDF]
, 2003 Current pacing practice is undergoing continuous and substantial changes. Initially pacing had an exclusively palliative role, since it was reserved for patients developing complete heart block or severe symptomatic bradycardia.
Szili-Török, T. (Tamás) +1 more
core
Unidirectional Pinning and Hysteresis of Spatially Discordant Alternans in Cardiac Tissue [PDF]
, 2011 Spatially discordant alternans is a widely observed pattern of voltage and calcium signals in cardiac tissue that can precipitate lethal cardiac arrhythmia. Using spatially coupled iterative maps of the beat-to-beat dynamics, we explore this pattern's dynamics in the regime of a calcium-dominated period-doubling instability at the single cell level. We
arxiv +1 more source
Cardiac arrhythmias and pacing [PDF]
Srce i krvni sudovi, 2012 In the last two years, a number of land-mark clinical trials have been published which further our understanding and clinical management of patients with atrial fibrillation (AF). Two of the major goals in the treatment of this condition include reducing pro-gression or recurrence of the arrhythmia and decrea-sing the risk of cardiovascular events ...
openaire +3 more sources
Evaluation of photogrammetry for medical application in cardiology
Frontiers in Bioengineering and Biotechnology, 2023 Background: In the field of medicine, photogrammetry has played for long time a marginal role due to the significant amount of work required that made it impractical for an extended medical use.
Giacomo Talevi +12 more
doaj +1 more source
Pulling Heart Strings: Evidence Based Algorithm for Temporary Epicardial Pacing Wire Removal [PDF]
, 2021 Background Use of temporary epicardial pacing wires in the post-operative period following cardiac surgery is commonplace. Timing of epicardial wire removal is dependent on surgeon preference or discretion but is carried out by intensive care unit ...
Hulton, Linda, Norman, Jessica
core +1 more source
Memory effects, transient growth, and wave breakup in a model of paced atrium [PDF]
, 2017 The mechanisms underlying cardiac fibrillation have been investigated for over a century, but we are still finding surprising results that change our view of this phenomenon. The present study focuses on the transition from normal rhythm to atrial fibrillation associated with a gradual increase in the pacing rate.
arxiv +1 more source
Wave-train induced unpinning of weakly anchored vortices in excitable media [PDF]
Phys. Rev. E 81, 010901(R) (2010), 2009 A free vortex in excitable media can be displaced and removed by a wave-train. However, simple physical arguments suggest that vortices anchored to large inexcitable obstacles cannot be removed similarly. We show that unpinning of vortices attached to obstacles smaller than the core radius of the free vortex is possible through pacing.
arxiv +1 more source
ESC Heart FailureWe report the case of a 36‐year‐old woman who presented to the emergency department complaining of palpitations and asthenia. Investigations showed frequent ventricular ectopy and severe left ventricular ejection fraction impairment.
Nicoletta Ventrella +9 more
doaj +1 more source
Indian Pacing and Electrophysiology Journal, 2020 Background: The wearable cardioverter-defibrillator (WCD) has been approved for patients with poor left ventricular ejection fraction (LVEF) who are at risk of sudden arrhythmic death for a limited period but are not candidates for a definitive ...
Giacomo Mugnai +4 more
doaj
Journal of Arrhythmia, 2019 Background Radiofrequency (RF) ablation is a well‐established approach to treat premature ventricular contractions (PVC) and is associated with good outcomes.
Lucio Capulzini +12 more
doaj +1 more source