نتایج جستجو برای: ventricular tissue
تعداد نتایج: 1053699 فیلتر نتایج به سال:
Introduction: Echocardiography is usually the first modalities of imaging to evaluate the structural and functional disorders of the heart and great vessels, and colored flow and Doppler images are able to perform hemodynamic and bloodstream evaluations. The goal of this study was the investigation of right ventricular function using echocardiography in patients with pulmonary artery hypertensi...
Arrhythmogenic right ventricular cardiomyopathy (ARVC) is a kind of heart muscle disease characterized by the gradual replacement of the right ventricular myocardium with fibrous tissue and fat. It could be the major cause of sudden cardiac death with ventricular tachycardia, and there is a variation in the history of the disease. We reported an unusual case of ARVC in a middle-aged woman with ...
Introduction: In patients who underwent surgery to repair Tetralogy of Fallot, right ventricular dilation from pulmonary regurgitation may be result in right ventricular failure, arrhythmias and cardiac arrest. Hence, pulmonary valve replacement may be necessary to reduce right ventricular volume overload. The aim of present study was to assess the effects of pulmonary valve replacement on rig...
OBJECTIVE To determine long-term survival, identify preoperative factors predictive of a favorable outcome, and assess functional improvement after coronary artery bypass grafting in patients with advanced left ventricular dysfunction. METHODS Between 1995 and 2001, 244 patients who underwent coronary artery bypass grafting and had a preoperative left ventricular ejection fraction less than o...
conclusions despite the widespread use of 2d lvef and its good agreement with ventriculography, strain analysis seems to be more reliable as a quantitative tool for ventricular assessment. results the lvef values obtained by the two methods of ventriculography and echocardiography were not significantly different. the highest correlation regarding the echocardiographic lvef was obtained in the ...
Described herein is a 68-year-old man who underwent cardiac transplantation for severe chronic heart failure resulting from ischemic cardiomyopathy. Examination of the excised heart showed not only extensive left ventricular scarring but also a huge collection of adipose tissue in the subepicardial region and surprisingly also in the ventricular septum. The finding of fat in the ventricular sep...
Right ventricular hypertrophy produced in rats exposed to 10% oxygen for 3 weeks resulted in a ninefold increase in atriopeptin immunoreactivity (APir) and a 160-fold increase in atriopeptin messenger RNA (AP mRNA) in the right ventricular myocardium. A small but significant increase in left ventricular APir and AP mRNA was also present, probably representing the interventricular septum. Right ...
The parasympathetic nervous system plays an important role in the pathophysiology of atrial fibrillation. Catheter ablation, a minimally invasive procedure deactivating abnormal firing cardiac tissue, is increasingly becoming the therapy of choice for atrial fibrillation. This is inevitably associated with the obliteration of cardiac cholinergic neurons. However, the impact on ventricular elect...
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