نتایج جستجو برای: left ventricle
تعداد نتایج: 309993 فیلتر نتایج به سال:
Septation is one of the surgical choices for double-inlet left ventricle, yet postoperative hemodynamics have not been well defined. We studied ventricular volume characteristics in 10 patients with double-inlet left ventricle before and after septation. Preoperative end-diastolic volume (EDV) of the ventricle was 291±111% (±SD) of normal and ejection fraction (EF) was 0.59± 0.07. Postoperative...
Introduction: There are several technical features that make PET an ideal device for the noninvasive evaluation of cardiac physiology. Organ motion due to respiration is a major challenge in diagnostic imaging, especially in cardiac PET imaging. These motions reduce image quality by spreading the radiotracer activity over an increased volume, distorting apparent les...
Introdution: Physical training causes functional and morphological changes in myocardium in response to regulatory adaptations same as Phosphatidilinositol-3-kinase (PI3K) changes. Present study aimed to experimentally investigate the effects of endurance and high intensity interval training on PI3K, structure and function of heart. Methods: 24 adultmale rats (weight 221.6 ± 11.4 grams) divid...
a 5-year-old girl was admitted to the hospital with chest pain, fever and dyspnea. physical examination showed normal heart sounds, diminished pulmonary sounds in the left hemithorax and a normal ecg. on chest x-ray the heart was slightly enlarged with moderate left pleural effusion. ct scan revealed pleural effusion and a hypodense mass at the apex of the heart. a cystic mass was detected by e...
PURPOSE Mean platelet volume (MPV) is an indicator of platelet activation, which is a central process in the pathophysiology of coronary heart disease. Metabolic syndrome (MS) may lead to worsened left ventricular systolic function by causing recurrent thrombotic events and by aggravating systemic inflammation in the course of acute myocardial infarction. The present study was designed to inves...
Introduction: We aimed at evaluating the clinical, laboratory and echocardiography effects of intracoronary administration of autologous bone marrow stem cell transplantation in different clinical entities of chronic Heart Failure (HF) patients. Methods: This procedure was carried out during an interventional study conducted in the Cardiology department from JAN 2012 to APR 2013. The HF ...
Introduction: Regular exercise training with alternating volume fluctuatesblood glucous levels and by regulating signaling in gene expression reduces in myocardial cell apoptosis in diabetic patients. The purpose of this study was the effect of 8 weeks of high intensity interval training on the gene expression of BAX and BCL-2 in the left ventricle of diabetic rats. Methods: The present study ...
A minimal model for mechanical motion of the left ventricle is proposed. The model assumes the left ventricle to be a harmonic oscillator with two distinct phases, simulating the systolic and diastolic phases, at which both the amplitude and the elastic constant of the oscillator are different. Taking into account the pressure within the left ventricle, the model shows qualitative agreement wit...
Cardiac papillary fibroelastomas (CPF) are benign cardiac tumors and usually discovered incidentally during echocardiography. This report describes the case of a 68-year-old man, referred to cardiology for multiple masses of the left ventricle and left atrium. The transthoracic echocardiography revealed multiple oscillating masses in the left ventricle and aortic valve, non-mobile mass in the l...
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