نتایج جستجو برای: lvef
تعداد نتایج: 4570 فیلتر نتایج به سال:
We evaluated echocardiographic changes of left ventricular (LV) function in coronary artery bypass grafting (CABG) patients with LV dysfunction, and examined cardiac magnetic resonance (CMR) parameters associated with improved LV function. Seventy-seven CABG patients presenting with decreased LV ejection fraction (LVEF, ≤ 35%) and who underwent preoperative gadolinium-enhanced CMR were enrolled...
AIMS Left ventricular ejection fraction (LVEF) and right ventricular ejection fraction (RVEF) are important tools in clinical decision-making. We hypothesized that two-dimensional echocardiography (2DE), three-dimensional echocardiography (3DE), radionucleotide ventriculography (RNV), cardiac computed tomography (CT), gated single-photon emission CT (SPECT), and invasive cardiac cine ventriculo...
UNLABELLED During routine myocardial perfusion imaging, a common observation is that patients with normal cardiac function and small hearts, in particular small women, have higher left ventricular ejection fractions (LVEFs), as measured by quantitative gated SPECT (QGS) software, than anticipated, often markedly so. The goal of this project was to determine if the QGS LVEF varies with the chang...
AIMS Left ventricular (LV) end-systolic diameter and LV ejection fraction (LVEF) are correlated with postoperative LVEF and prognosis in patients with organic mitral regurgitation (MR). However, in some patients, the LVEF does not return to normal 6 months postoperatively, despite normal preoperative diameters. Thus, our study aimed to evaluate whether preoperative LV strain values assessed by ...
BACKGROUND Large multicenter studies validating the prognostic value of coronary computed tomographic angiography (CCTA) and left ventricular ejection fraction (LVEF) are lacking. We sought to confirm the independent and incremental prognostic value of coronary artery disease (CAD) severity measured using 64-slice CCTA over LVEF and clinical variables. METHODS AND RESULTS A large internationa...
PURPOSE There are no validated methods of early detection of cardiotoxicity from trastuzumab (T) following anthracycline-based chemotherapy. Currently changes in left ventricular ejection fraction (LVEF) are assessed but this approach has limited sensitivity and specificity. Within a prospective feasibility study of dose-dense (dd) doxorubicin and cyclophosphamide (AC) → weekly paclitaxel (P) w...
The measurement of left ventricular ejection fraction (LVEF) plays a key role in many strategies for managing patients after acute myocardial infarction. We tested the hypothesis that exercise capacity 1 month after myocardial infarction provides additional information in patients with a low LVEF and therefore assists in risk stratification. One hundred fifteen patients, with documented myocard...
The late gadolinium enhancement (LGE) on cardiac magnetic resonance (CMR) is associated with ventricular tachyarrhythmic substrate in patients nonischemic cardiomyopathy (NICM), while the left ejection fraction (LVEF) ≤ 35% still sole criterion for implantable cardioverter defibrillator (ICD) implantation. To perform meta-analysis to evaluate risk stratification value of LVEF and LGE CMR events...
Ageing affects and is also being affected by various physiological processes in the human system, in particular the brain [1, 2]. In patients with severe cardiomyopathies, left ventricular ejection fraction (LVEF) is related to abnormal brain ageing, including cognitive impairment, structural neuroanatomical abnormalities, and increased risk for Alzheimer's disease. Cognitive impairment diminis...
IMPORTANCE Clinical trials of prophylactic implantable cardioverter-defibrillators (ICDs) have included a minority of patients with a left ventricular ejection fraction (LVEF) between 30% and 35%. Because a large number of ICDs in the United States are implanted in such patients, it is important to study survival associated with this therapy. OBJECTIVE To characterize patients with LVEF betwe...
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