Results 101 to 110 of about 116,355 (206)

A study on stability analysis of atrial repolarization variability using ARX model in sinus rhythm and atrial tachycardia ECGs [PDF]

open access: yes, 2016
© 2016 Elsevier Ireland Ltd Background The interaction between the PTa and PP interval dynamics from the surface ECG is seldom explained. Mathematical modeling of these intervals is of interest in finding the relationship between the heart rate and ...
Langley, Philip   +5 more
core   +1 more source

Arrhythmia susceptibility in senescent rat hearts

open access: yesJournal of Biological Research, 2014
Cardiovascular disease increases with age as well as alterations of cardiac electrophysiological properties, but a detailed knowledge about changes in cardiac electrophysiology relevant to arrhythmogenesis in the elderly is relatively lacking. The aim of
Stefano Rossi   +8 more
doaj   +1 more source

Intracardiac Calcification - An Interesting Chest X-ray Report. [PDF]

open access: yes, 2013
We report a case of chest X-ray finding of mitral annular calcification. Mitral annular calcification is a degenerative process involving the fibrous annulus of the mitral valve.
Anupama, N   +5 more
core  

An intracardiac electrogram model to bridge virtual hearts and implantable cardiac devices

open access: yes, 2017
Virtual heart models have been proposed to enhance the safety of implantable cardiac devices through closed loop validation. To communicate with a virtual heart, devices have been driven by cardiac signals at specific sites.
Ai, Weiwei   +5 more
core   +1 more source

Utility of the NavX® Electroanatomic Mapping System for Permanent Pacemaker Implantation in a Pregnant Patient with Chagas Disease

open access: yesIndian Pacing and Electrophysiology Journal, 2013
Chagas disease is a highly prevalent zoonosis in Mexico, Central, and South America. Early cardiac involvement is one of the most serious complications of this disease, and conduction disturbances may occur at an early age.
Alejandro Velasco, MD   +4 more
doaj   +1 more source

Revisiting transthyretin related cardiac amyloidosis: Case report and review of literature

open access: yesClinics and Practice, 2018
Amyloidosis is a complex group of disorders that can involve many organs and cause their dysfunction. Cardiac involvement indicates worse prognosis and influences treatment strategies.
Munish Sharma   +3 more
doaj   +1 more source

Potassium channel subunits encoded by the KCNE gene family: physiology and pathophysiology of the MinK-related peptides (MiRPs). [PDF]

open access: yes, 2001
Voltage-gated potassium channels provide tightly Controlled, ion-specific pathways across membranes and are key to the normal function of nerves muscles. They arise from the assembly of four pore-forming proteins called alpha-subunits.
Abbott, GW, Goldstein, SA
core  

On the detection of myocardial scar based on ECG/VCG analysis

open access: yes, 2013
In this paper, we address the problem of detecting the presence of myocardial scar from standard ECG/VCG recordings, giving effort to develop a screening system for the early detection of scar in the point-of-care.
Curzen, Nick   +7 more
core   +1 more source

Ultra-High-Frequency ECG in Cardiac Pacing and Cardiac Resynchronization Therapy: From Technical Concept to Clinical Application

open access: yesJournal of Cardiovascular Development and Disease
Identifying electrical dyssynchrony is crucial for cardiac pacing and cardiac resynchronization therapy (CRT). The ultra-high-frequency electrocardiography (UHF-ECG) technique allows instantaneous dyssynchrony analyses with real-time visualization.
Uyên Châu Nguyên   +11 more
doaj   +1 more source

Malignant ventricular arrhythmias induction by programmed electrical stimulation of the right ventricular outflow tract only during type 1 brugada ECG maximization [PDF]

open access: yes, 2016
OBJECTIVE: The role of electrophysiology study in Brugada syndrome (BS) sudden cardiac death risk stratification remains controversial and seems to depend on the phenotypic expression of the channelopathy.
ALESSANDRI, Nicola   +7 more
core  

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