Results 31 to 40 of about 105,091 (342)

Atrial Flutter, The Commonly Misdiagnosed Arrhythmia as Supraventricular Tachycardia or Sinus Tachycardia

open access: yesThe Iraqi Journal of Medical Sciences, 2021
Background: Atrial flutter is a common arrhythmia in structurally normal or abnormal heart. The electrocardiographic features of it can be mistaken for sinus tachycardia or supraventricular tachycardia.
Amar Alhamdi
doaj   +1 more source

Heart rate dynamics distinguish among atrial fibrillation, normal sinus rhythm and sinus rhythm with frequent ectopy

open access: yesPhysiological Measurement, 2015
Atrial fibrillation (AF) is usually detected by inspection of the electrocardiogram waveform, a task made difficult when the signal is distorted by noise. The RR interval time series is more frequently available and accurate, yet linear and nonlinear time series analyses that detect highly varying and irregular AF are vulnerable to the common finding ...
CARRARA, MARTA   +7 more
openaire   +2 more sources

Left atrial minimal volume: association with diastolic dysfunction and heart failure in patients in sinus rhythm or atrial fibrillation with preserved ejection fraction

open access: yesBMC Medical Imaging, 2021
Background Evidence of diastolic dysfunction (DD) required for the diagnosis of heart failure with preserved ejection fraction (HFpEF) is elusive in atrial fibrillation (AF).
Assaf Ben-Arzi   +8 more
doaj   +1 more source

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

Myocardial Architecture and Patient Variability in Clinical Patterns of Atrial Fibrillation [PDF]

open access: yes, 2016
Atrial fibrillation (AF) increases the risk of stroke by a factor of four to five and is the most common abnormal heart rhythm. The progression of AF with age, from short self-terminating episodes to persistence, varies between individuals and is poorly ...
Christensen, Kim   +2 more
core   +2 more sources

Cardioversion of atrial fibrillation does not affect obstructive sleep apnea

open access: yesUpsala Journal of Medical Sciences, 2017
Background: Sleep apnea is common in patients with atrial fibrillation, but the effect of the cardioversion of atrial fibrillation to sinus rhythm on central and obstructive apneas is mainly unknown.
Niklas Höglund   +4 more
doaj   +1 more source

Characteristics of the heart rhythm in children with gastroesophageal reflux disease

open access: yesZdorovʹe Rebenka, 2019
Background. Incidence of gastroesophageal reflux disease (GERD) increases in patients from different age groups throughout the world. Studying the extraesophageal manifestations, including cardiologic symptoms of GERD, in children is relevant.
T.V. Zimnytska   +4 more
doaj   +1 more source

Altered excitation-contraction coupling in human chronic atrial fibrillation [PDF]

open access: yes, 2012
This review focuses on the (mal)adaptive processes in atrial excitation-contraction coupling occurring in patients with chronic atrial fibrillation. Cellular remodeling includes shortening of the atrial action potential duration and effective refractory ...
Grandi, E., Pandit, S.V., Workman, A.J.
core   +1 more source

Optimised Internet of Thing framework based hybrid meta‐heuristic algorithms for E‐healthcare monitoring

open access: yesIET Networks, EarlyView., 2022
Abstract Everything can be connected in the Internet of Things (IoTs) technology that enables efficient communication between connected objects. IoTs industry‐based meta‐heuristic and mining algorithms, which are considered an important field of Artificial Intelligence will be used to construct a healthcare application in this study for lowering costs,
Muhaned Al‐Hashimi   +4 more
wiley   +1 more source

The effects of repetitive electric cardiac stimulation in dogs with normal hearts, complete heart block and experimental cardiac arrest [PDF]

open access: yes, 1955
Direct cardiac stimulation was conducted in the open chest. In normal animals, auricular stimulation at frequencies faster than the spontaneous rate caused little change in vascular pressures or cardiac output.
GAERTNER, RA, STARZL, TE, WEBB, RC
core   +1 more source

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