Results 91 to 100 of about 165,259 (299)

Clinical utility of ambulatory ECG monitoring and 2D-ventricular strain for evaluation of post-COVID-19 ventricular arrhythmia

open access: yesBMC Cardiovascular Disorders
Background A relatively common complication of COVID -19 infection is arrhythmia. There is limited information about myocardial deformation and heart rate variability (HRV) in symptomatic post COVID patients presented by ventricular arrhythmia.
Rehab M. Hamdy   +2 more
doaj   +1 more source

Potassium and ventricular arrhythmias

open access: yesThe American Journal of Cardiology, 1990
Potassium is a major determinant of the electrophysiologic properties of the myocardial membrane, and it plays an important role in the occurrence of arrhythmia. Hypokalemia has been associated with an increased frequency of ventricular premature complexes (VPCs) in some studies of hypertensive patients treated with diuretics, but other studies have ...
openaire   +2 more sources

Sex as a biological variable in nonclinical studies: Bridging scientific rigor, animal welfare, and regulatory expectations

open access: yesAnimal Models and Experimental Medicine, EarlyView.
Sex as a biological variable (SABV) is a critical determinant of pharmacokinetics, pharmacodynamics, and toxicity in nonclinical studies. This review highlights how inappropriate neglect of sex differences compromises animal welfare, scientific reproducibility, and regulatory compliance.
Kenta Onuma   +2 more
wiley   +1 more source

Electrocardiography in horses, part 2: how to read the equine ECG [PDF]

open access: yes, 2010
The equine practitioner is faced with a wide variety of dysrhythmias, of which some are physiological. The recording of an exercise electrocardiogram (ECG) can help distinguish between physiological and pathological dysrhythmias, underlining the ...
De Clercq, Dominique   +5 more
core  

From armadillos to sloths: Patterns and variations in xenarthran coronary anatomy

open access: yesThe Anatomical Record, EarlyView.
Abstract Species of the superorder Xenarthra play a vital ecological role in the Neotropics. Despite their evolutionary significance, anatomical studies on their coronary circulation remain scarce. This study investigated the coronary anatomy of 82 hearts from nine Xenarthra species across the Dasypodidae, Myrmecophagidae, and Bradypodidae.
Wilson Viotto‐Souza   +5 more
wiley   +1 more source

Electrocardiographic repolarization parameters in children with arrhythmias and excessive body weight

open access: yesArchives of Medical Science
Introduction In clinical diagnosis, electrocardiographic repolarization abnormalities with prolongation of QT and especially TpTe intervals are important for assessing the risk of malignant ventricular arrhythmias. The aim of the study was to compare the
Joanna Jaromin   +5 more
doaj   +1 more source

Brugada Syndrome: Presentation and Management of the Atypical Patient in the Emergent Setting [PDF]

open access: yes, 2020
Introduction: Brugada syndrome is a genetic disorder of the heart’s electrical system that increases a patient’s risk of sudden cardiac death. It is a syndrome most prevalent in Southeast Asians and is found 36 times more commonly in Asians than in ...
Flores, Mario   +2 more
core  

Long‐Term Outcomes of Reduced‐Intensity Conditioning Hematopoietic Stem Cell Transplantation for Patients With Systemic Sclerosis With Impaired Cardiac Function

open access: yesArthritis &Rheumatology, EarlyView.
Objective High‐intensity conditioning autologous hematopoietic stem cell transplantation (AHSCT) is standard of care for patients with advanced systemic sclerosis (SSc). The role of reduced‐intensity conditioning (RIC) before AHSCT in this population remains unclear.
Yonatan Lean   +4 more
wiley   +1 more source

Arrhythmia Diagnosis Following an ICD Shock: Reply

open access: yesIndian Pacing and Electrophysiology Journal, 2002
Dr. Levine's comments1 are greatly appreciated. Most modern ICDs have arrhythmia discrimination algorithms that have variable success in withholding inappropriate therapy.
Roy M. John
doaj  

Catheter ablation of ventricular arrhythmia originating in the tricuspid annulus in a patient with biventricular noncompaction: a case report

open access: yesTürk Kardiyoloji Derneği Arşivi, 2015
It is rare for ventricular tachycardia arising from the right ventricle to originate in the tricuspid annulus, and the clinical presentation and cardiac abnormalities associated with this type of arrhythmia have not been clearly established.
Ahmet Taha Alper   +3 more
doaj   +1 more source

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