Ivabradine: a preliminary observation for a new terapeutic role in patients with multiple organ dysfunction syndrome [PDF]
, 2014 [No abstract ...
De Santis, V +3 more
core +1 more source
Energy landscape analysis of cardiac fibrillation wave dynamics using pairwise maximum entropy model [PDF]
arXiv, 2018 Cardiac fibrillation is characterized by chaotic and disintegrated spiral wave dynamics patterns, whereas sinus rhythm shows synchronized excitation patterns. To determine functional correlations among cardiomyocytes during complex fibrillation states, we applied a pairwise maximum entropy model (MEM) to the 2D numerical simulation data of human atrial
arxiv
Causal Scale Shift Associated with Phase Transition to Human Atrial Fibrillation [PDF]
arXiv, 2018 An example of phase transition in natural complex systems is the qualitative and sudden change in the heart rhythm between sinus rhythm and atrial fibrillation (AF), the most common irregular heart rhythm in humans. While the system behavior is centrally controlled by the behavior of the sinoatrial node in sinus rhythm, the macro-scale collective ...
arxiv
Reviving a failed network through microscopic interventions [PDF]
Nature Physics. 2022 Mar;18(3):338-49, 2020 From mass extinction to cell death, complex networked systems often exhibit abrupt dynamic transitions between desirable and undesirable states. Such transitions are often caused by topological perturbations, such as node or link removal, or decreasing link strengths.
arxiv
Rate-Control or Rhythm-Contol: Where do we stand? [PDF]
, 2005 Atrial fibrillation is the most common sustained rhythm disturbance and its prevalence is increasing worldwide due to the progressive aging of the population.
A, Dello Russo +6 more
core +1 more source
Function and dysfunction of human sinoatrial node [PDF]
, 2015 Sinoatrial node (SAN) automaticity is jointly regulated by a voltage (cyclic activation and deactivation of membrane ion channels) and Ca(2+) clocks (rhythmic spontaneous sarcoplasmic reticulum Ca(2+) release).
Chen, Peng-Sheng, Joung, Boyoung
core +1 more source
Symptomatic Long Pauses and Bradycardia due to Massive Multinodular Goiter
Case Reports in Cardiology, 2017 Sinus node dysfunction with symptomatic bradycardia or chronotropic incompetence is generally an indication for pacemaker implantation. However, in patients with symptomatic sinus bradycardia, the identification and treatment of underlying pathologies ...
Amrish Deshmukh, Cevher Ozcan
doaj +1 more source
Mechanism of Discordant Alternans in Spatially Homogeneous Tissue [PDF]
arXiv, 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
Familial sick sinus syndrome in two siblings
The Turkish Journal of Pediatrics, 1993 Two siblings with sinus node disease are presented. The patients were severely affected and required permanent pacing. A cardiac electrophysiologic study was conducted in Case 2, which revealed an atrioventricular conduction disturbance in ...
A Celiker, A Oto, S Ozme
doaj
The Role of Electrophysiologic Study in Device Selection for Leadless Atrial Pacing [PDF]
Texas Heart Institute JournalThe AVEIR DR (Abbott Medical) was the first dual-chamber leadless pacing system approved by the US Food and Drug Administration. Many patients with sinus node dysfunction have physiologically normal atrioventricular conduction, so an atrial-only pacing ...
Joshua R. Hirsch, MD +3 more
doaj +1 more source