noncompaction of the ventricular myocardium is an embryonic cardiomyopathy that is increasingly being recognized. noncompaction of lv myocardium, right ventricular myocardium, or both can occur in isolation, in congenital heart diseases, in valvular heart diseases, in neuromuscular disorders, skeletal abnormalities and in endocrinologic abnormalities. clinical manifestations of ventricular non-...

CARDIOVASCULAR DISORDERS aortic anomalies aortic aneurism aortic arch, anomalies aortic valvular, anomalies cardiac congenital defects cardiomegaly cardiopathy, congenital heart conduction defects, cardiac arrhythmia, including tachycardia, atrial fibrillation, ventricular fibrillation heart conduction defects, cardiac arrhythmia, including: bradycardia, cardiac dysrhythmias mitral valve, defec...

sodium valproate (sv), an antiepileptic drug has several mechanism of action. it inhibits voltage sensitive na+ channels and reduces intracellular na accumulation. these actions are similar to that of both phenytoin and carbamazepine. we have investigated the direct cardiac action of sv and its effects on ouabain-induced arrhythmia in isolated guinea-pig atria. the guinea-pig atrium was dissect...

Renewed interest in the pharmacological action of aconitine has followed the work of Sherf (1947), Prinzmetal et al. (1950 and 1951), and Brown and Acheson (1952). Its use in experimental medicine produces stimulus formation in the dog's heart with auricular tachycardia and in certain circumstances ventricular tachycardia and fibrillation: it has become a useful tool in the hands of the researc...

The incidence of intraoperative arrhythmia is extremely high, and some arrhythmias require clinical attention. Therefore, it is essential for the anesthesiologist to evaluate risk factors for arrhythmia and understand their etiology, electrophysiology, diagnosis, and treatment. Anesthetic agents reportedly affect normal cardiac electrical activity. In the normal cardiac cycle, the sinoatrial no...

background: cardiovascular system is a very importantorgan that plays a vital role in tissue function. in farm animals,the growth and high milk production depends on function ofcardiovascular system. objectives: cardiovascular health inhigh and low-yielding dairy cows was investigated. methods:fifty 4-year-old high- yielding holstein dairy cows and fifty 4-year-old low- yielding holstein dairy ...

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...

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...