Results 131 to 140 of about 72,612 (294)

Electroanatomic analysis of sinus impulse propagation in normal human atria

open access: yes, 2002
Introduction: Better understanding of atrial propagation during sinus rhythm (SR) in normal hearts under the most normal physiologic conditions may be propaedeutic to pathophysiologic studies of complex atrial arrhythmias.
DE PONTI, ROBERTO   +4 more
core   +1 more source

Pre‐anaesthetic risk assessment and management of dogs with myxomatous mitral valve disease: a spectrum of care narrative review

open access: yesJournal of Small Animal Practice, EarlyView.
Myxomatous mitral valve disease, an acquired valvular degeneration, is the most common cardiac disorder in dogs, affecting approximately 10% of dogs in primary care veterinary practice. Dogs with myxomatous mitral valve disease frequently require anaesthesia for routine procedures.
I. Levinzon   +3 more
wiley   +1 more source

Accuracy and agreement of a wearable device for heart rate and oxygen saturation monitoring in awake dogs

open access: yesJournal of Small Animal Practice, EarlyView.
Objectives The present study evaluated the accuracy and agreement of heart rate and peripheral oxygen saturation measurements obtained using the Owlet Smart Sock in awake dogs with low activity levels, using a veterinary patient monitor as the reference method.
Ş. Melek   +3 more
wiley   +1 more source

Propafenone effect on inotropic myocardial function in patients with recurrent atral fibrillation

open access: yesКардиоваскулярная терапия и профилактика, 2006
Aim. To study the effects of three-month propafenone antiarrhythmic therapy (daily dose 450 mg) on inotropic myocardial function in patients with recurrent atrial fibrillation (AF). Material and methods.
I. G. Fomina   +2 more
doaj  

A perspective on automated rapid eye movement sleep assessment

open access: yesJournal of Sleep Research, Volume 34, Issue 2, April 2025.
Summary Rapid eye movement sleep is associated with distinct changes in various biomedical signals that can be easily captured during sleep, lending themselves to automated sleep staging using machine learning systems. Here, we provide a perspective on the critical characteristics of biomedical signals associated with rapid eye movement sleep and how ...
Mathias Baumert, Huy Phan
wiley   +1 more source

Delta‐9‐Tetrahydrocannabinol (THC) Before Bedtime: Feasibility and Mechanistic Pilot Study on Sleep and Cardiac Autonomic Activity

open access: yesJournal of Sleep Research, EarlyView.
ABSTRACT Disordered sleep is a common reason individuals report using cannabis, yet the physiological effects of Δ9‐tetrahydrocannabinol (Δ9‐THC) on sleep and autonomic regulation remain incompletely understood. Early studies reported acute sleep‐promoting effects of Δ9‐THC, but chronic use has been associated with disrupted sleep and possible ...
Joshua E. Gonzalez   +9 more
wiley   +1 more source

Association Between Sleep Quality and Oxidative Stress in Postoperative Cardiovascular Patients—A Pilot Study

open access: yesJournal of Sleep Research, EarlyView.
In 15 postoperative cardiac surgery patients, venous reactive oxygen species (ROS) measured by electron spin resonance (ESR) over 48 h showed no consistent circadian pattern. Higher ROS was associated with lower subjective sleep efficiency and more nocturnal awakenings, but not with other sleep measures.
K. Krawczyk   +10 more
wiley   +1 more source

Approaches to restoring and maintaining normal sinus rhythm.

open access: yesCleveland Clinic Journal of Medicine, 2003
David O, Martin   +6 more
openaire   +2 more sources

Effects of age on the prevalence of cardiac dysrhythmias in ponies

open access: yes, 2010
This study describes the prevalence of cardiac dysrhythmias occurring over a single 24 h period in ponies and compares the heart rate and frequency of dysrhythmias in two groups of ponies of different ages Electrocardiograms were recorded using a Holter ...
Pirie, Scott; id_orcid   +2 more
core  

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