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aconitine/infarction
Ο σύνδεσμος αποθηκεύεται στο πρόχειρο
Σελίδα 1 από 22 Αποτελέσματα
Aconitine intoxication mimicking acute myocardial infarction.
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BACKGROUND
Cardiotoxicity in acute aconitine intoxication is well known; however, elevation of troponin I level and abnormal scintigraphy findings had not previously been reported.
METHODS
A 60-year-old man developed chest tightness, syncope and convulsion after ingesting processed Aconitum
Accelerated idioventricular rhythm degenerating into bidirectional ventricular tachycardia following acute myocardial infarction.
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Σύνδεση εγγραφή
Bidirectional ventricular tachycardia (BVT) is a rare ventricular tachyarrhythmia. It is usually regular, demonstrating a beat-to-beat alternation in the QRS frontal axis that varies between -20° to -30° and +110°. The tachycardia rate is typically between 140 and 180 beats/min and the QRS is
Myocardial infarct size-limiting and anti-arrhythmic effects of mildronate orotate in the rat heart.
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OBJECTIVE
Mildronate and orotic acid act as modulators of energy metabolism and are considered as cardioprotective agents. This study was performed to compare the cardioprotective effects of mildronate, orotic acid and mildronate orotate.
METHODS
Male Wistar rats received mildronate, orotic acid or
Antiarrhythmic effects of an aconitine-like compound, TJN-505, on canine arrhythmia models.
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Σύνδεση εγγραφή
We examined the effects of an aconitine-like compound, TJN-505 (1alpha-16beta-dimethoxy-20-ethyl-14alpha-(4-methox ybenzoyloxy)-aconitan-8,13-diol hydrochloride), on canine arrhythmias provoked by digitalis, two-stage coronary ligation, adrenaline, programmed electrical stimulation, or aconitine.
Type II bidirectional ventricular tachycardia in a patient with myocardial infarction.
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Σύνδεση εγγραφή
A 84-year-old man presented to the emergency department complaining of chest pain and palpitations. He had no history of coronary artery disease. The 12-lead electrocardiography showed bidirectional ventricular tachycardia (BVT). Coronary angiography revealed severe mid left anterior descending and
[Increase of the heart arrhythmogenic resistance and decrease of the myocardial necrosis zone during activation of cannabinoid receptors].
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Σύνδεση εγγραφή
We have found that intravenous administration of cannabinoid receptor (CB) agonist HU-210 (0.05 mg/kg), increases cardiac resistance against arrhythmogenic effect of epinephrine, aconitine, coronary artery occlusion and reperfusion in rats. Pretreatment with CB2-receptor antagonist, SR144528 (1
[Comparative study of the toxicity and antiarrhythmic activity of some organic derivatives of dimethylacetamide].
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A comparative study of the acute toxicity and antiarrhythmic activity of new domestic derivatives of dimethylacetamide showed that the introduction of amino and carboxylic acid residues into the structure of compounds is accompanied by reduction of the toxic properties of new substances on the
[Antiarrhythmic properties of opioid receptor agonists].
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Σύνδεση εγγραφή
Data on the antiarrhythmic properties of opioid receptor (OR) agonists have been systematized. An analysis of published works which indicate that opioids increase cardiac tolerance to arrhythmogenic influences both in vivo and in vitro has been performed. For example, occupancy of central micro- and
Pharmacological studies on propafenone and its main metabolite 5-hydroxypropafenone.
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The new antiarrhythmic drug propafenone and its main human metabolite 5-hydroxypropafenone were investigated for antiarrhythmic, local anaesthetic, Ca++-antagonistic and beta-adrenoceptor blocking effects as well as for their activity on the central nervous system. In isolated organs (guinea-pig
Frequent ventricular premature beats increase blood pressure variability in rats.
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OBJECTIVE
The present study was designed to test a hypothesis that nonfatal ventricular arrhythmia such as ventricular premature beats (VPB) is a contributing factor in the elevation of blood pressure variability (BPV).
METHODS
Blood pressure (BP) and electrocardiogram were continuously recorded.
Mechanisms of triggered activity induction at the border zone of normal and abnormal cardiac tissue.
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Ionic mechanisms that may be involved in inducing triggered activations at the border zone (BZTAs) of normal and abnormal Purkinje fiber segments were investigated. In a two-chamber bath, fibers were divided into a normal segment and segment treated with ethylenediaminetetraacetic acid to stimulate
Increased susceptibility to ventricular arrhythmias in a rodent model of experimental depression.
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Σύνδεση εγγραφή
Depression is an important public health problem and is considered to be an independent risk factor for coronary artery disease. The pathophysiological mechanisms that link depression with adverse cardiovascular events (e.g., myocardial ischemia, myocardial infarction, and sudden death) are not well
[Prodrug structural modifications of cyclovirobuxine D and their biological activity].
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OBJECTIVE
To search for compounds for the treatment of cardiovascular diseases through prodrug structural modifications of cyclovirobuxine D, a single efficient composition distilled from Box plant in China, which was used to treat angina and myocardial infarction.
METHODS
According to prodrug
Ranolazine Facilitates Termination of Ventricular Tachyarrhythmia Associated With Acute Myocardial Ischemia Through Suppression of Late INa-Mediated Focal Activity.
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BACKGROUND
Ventricular tachycardia/fibrillation (VT/VF) associated with acute myocardial ischemia is the most common cause of sudden cardiac death, but its underlying mechanisms are incompletely understood. It is hypothesized that late Na+current (INa) contributes to arrhythmogenic activity in
Antiarrhythmic evaluation of verapamil, nifedipine, perhexiline and skf 525-A in four canine models of cardiac arrhythmias.
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Σύνδεση εγγραφή
Verapamil, nifedipine, perhexiline and SKF 525-A (2-diethylaminoethyl-2,2-diphenylvalerate . HCL) were evaluated for cardiac antiarrhythmic activity by assessing their effectiveness in increasing left ventricular fibrillation threshold (FT) and antagonizing ouabain-induced arrhythmias (OA), 24 h
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