نتایج جستجو برای: arrhythmia
تعداد نتایج: 19249 فیلتر نتایج به سال:
Patients that have survived Out-of-Hospital Cardiac Arrest usually develop some degree of neurological problems. A common treatment to mitigate neurological damage is mild therapeutic hypothermia (MTH). However, MTH has adverse effects, including arrhythmia. In order to explore the mechanisms of arrhythmia linked to MTH, we took measures on a temperature controlled experimental model which simu...
Arrhythmic Electrocardiogram Beat Detection and Classification Using Heart Rate Variability Analysis
We present a system for automatic arrhythmia detection and classification in ECGs. Arrhythmia detection is based on time and timefrequency domain features of heart rate variability. The RR interval duration signal is extracted from ECGs and segmented into small intervals. Time domain features are extracted and used for the training of a set of neural networks. Short time Fourier transform, and ...
We report a case of cardiac arrhythmia occurring in a Guillain-Barré syndrome (GBS) patient after succinylcholine administration during third endotracheal intubation, on day 13 of illness. The probable cause of arrhythmia is succinylcholine-induced hyperkalemia. Of interest, this case demonstrated in the same patient that arrhythmia only occurred during third intubation, when duration of illnes...
OBJECTIVE To investigate whether a rapid access approach is useful for the evaluation of patients with symptoms suggestive of a new cardiac arrhythmia. DESIGN Prospective, descriptive study. SETTING Secondary care based rapid access arrhythmia clinic in West London, UK. PARTICIPANTS Patients referred by their general practitioner or the emergency department with symptoms suggestive of a n...
Recent studies suggest that countershock can stimulate cardiac autonomic nerves and that the resulting release of norepinephrine contributes to postcountershock (PCS) arrhythmias. /J-Adrenergic receptor blocking agents, reserpine, cocaine, and cardiac-denervated preparations were used to evaluate this hypothesis in dogs under pentobarbital anesthesia. The suitability of the dog as an experiment...
CONTEXT Population study data about relations of coffee drinking to arrhythmia are sparse. OBJECTIVE To study relations of coffee drinking to risk of cardiac arrhythmia in 130,054 persons with previous data about coffee habits.Design and Outcome Measure: We used Cox proportional hazards models with 8 covariates to study coffee-related risk in 3137 persons hospitalized for cardiac arrhythmia. ...
Myocardial ischemia-induced arrhythmia, especially ventricular arrhythmia, is the main reason for sudden cardiac death. Therefore, ischemic ventricular arrhythmia-targeted treatments are urgently needed. The mechanism of Tiaogan Qingxin Granule in premature ventricular beat (PVB) treatment was explored in arrhythmic rats pretreated with Tiaogan Qingxin Granule. Sprague-Dawley rats (N = 40) were...
Postoperative arrhythmias are common and represent a major source of morbidity after both cardiac and noncardiac surgical procedures. Postoperative dysrhythmias are most likely to occur in patients with structural heart disease. The initiating factor for an arrhythmia in a given patient after surgery is usually a transient insult, such as hypoxemia, cardiac ischemia, catecholamine excess, or el...
Article history: Received on: 20/05/2013 Revised on: 19/06/2013 Accepted on: 11/07/2013 Available online: 06/08/2013 The aim of present study was to evaluate cardioprotective activity of ethanolic and aqueous extracts of Bauhinia variegata Linn in CaCl2 induced arrhythmia in albino rats.In present study, i.v injection of 5% CaCl2 solution (25 mg/kg b.w.) that induce arrhythmia without causing m...
Introduction: Recent studies have shown acute cardioprotective effects of cyclosporine. The aim of the present study was to determine the protective role of cyclosporine on the model simulated the rotational nodal arrhythmia (AVNRT) by using extracellular field potential recordings of isolated atrioventricular-node (AV-node) of rabbit. Methods: This study was performed on isolated double-per...
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