Cardiac Electrophysiology
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Recent papers in Cardiac Electrophysiology
Microvolt-level T-wave alternans (TWA) is a new arrhythmia risk marker to assess subtle changes in repolarization that has been introduced for arrhythmia risk stratification. Recent experimental studies have demonstrated that it reflects... more
Many problems in Biology and Engineering are governed by anisotropic reaction–diffusion equations with a very rapidly varying reaction term. This usually implies the use of very fine meshes and small time steps in order to accurately... more
Doxorubicin (DOX) is a broad spectrum anthracycline antibiotic used to treat multiple cancers. The use of DOX is limited by significant cardiotoxicity, hepatotoxicity and nephrotoxicity. Quercetin is a dietary-flavonoid found in... more
Cardiac arrhythmias are defined as disturbances in normal heart rhythm which vary from inconsequential to serious life threatening conditions. Simulation studies of cardiac arrhythmias at the whole heart level with electrocardiogram (ECG)... more
The shape and size of electrode's head may have a strong influence on the sensing performance, both of intra-cavitary electrodes and intra-tissue electrodes, whenever the sensed region is close enough to electrode's surface. The purpose... more
Brief review of existing methods used in machine learning cardiac arrhythmia classification
Academia.edu seems to have messed up the formatting when viewed on-site, apologies about that.
Academia.edu seems to have messed up the formatting when viewed on-site, apologies about that.
Purpose: The present study examined whether HRV is predictive of CAN in patients with DMII. Subjects and methods: The study group consisted of 50 patients, newly diagnosed with type 2 diabetes mellitus. The control group consisted of 50... more
En este trabajo ciertos problemas de la biología de los tejidos excitables son replanteados como problemas físicos y son estudiados mediante los conceptos y los métodos de la física no lineal. Se trata de un trabajo fundamentalmente de... more
A 76-year-old woman was referred to our hospital for unresponsiveness and hypotension. She had developed constipation that had led to ileus and had received 34 g of magnesium citrate (Magcolol P®) orally the day before. She was... more
Resumen: En esta primera parte, después de resumir y reformular la teoría de bidominio de la electrocardiología, se emplea un modelo matemático simplificado de la excitación del miocardio a través de electrodos de marcapaso para estudiar,... more
The purpose of this investigation was to evaluate factors affecting the outcome following penetrating cardiac trauma in a developing country and to compare our results with others in developed countries. Analysis of the cause of trauma,... more
Atrial tachycardia encompasses those forms of supraventricular tachycardia that do not involve the atrioventricular node as an obligate part of the tachycardia circuit. We have previously reviewed a conceptual approach for understanding... more
Alterations of the β-adrenergic signalling, structural remodelling, and electrical failure of T-tubules are hallmarks of heart failure (HF). Here, we assess the effect of β-adrenoceptor activation on local Ca 2+ release in electrically... more
Mantendo a regularidade anual da publicação dos registos de electrofisiologia, apresentam-se os resultados referentes ao ano de 2004. Com efeito, consideramos importante a apresentação das casuísticas globais, assim como os resultados dos... more
Molecular targets for pharmacological modulation of sinoatrial (SA) pacemaking include ion channels in-volved in sinoatrial pacemaking and components of the receptor-II messenger systems that may modulate, such channels in physiological... more
A case–control study (1:1) was conducted with a total of 72 patients: 36 cases (depressed LVEF) and 36 controls (normal LVEF). Patients were matched by left atrial diameter (LAD), the presence of arterial hypertension, and other variables... more
Current approaches for the ablation of atrial fibrillation are often effective, but only partially rooted in mechanistic understanding. Accordingly, they are unable to predict whether a given patient will or will not do well, or which... more