نتایج جستجو برای: diastolic dysfunction
تعداد نتایج: 185343 فیلتر نتایج به سال:
Patients with valvular heart disease often have left ventricular diastolic dysfunction. This review summarizes the underlying mechanisms for diastolic dysfunction in patients with mitral and aortic valve disease. In addition to load, intrinsic myocardial abnormalities occur related to changes in sarcomeric proteins, abnormal calcium handling, and fibrosis. Echocardiography is the initial modali...
BACKGROUND The incidence of heart failure in diabetic subjects is high even in the absence of hypertension and coronary artery disease. AIMS The purpose of this study was to study the incidence of diastolic dysfunction in diabetic subjects and its relation to age, duration of diabetes mellitus (DM), Glycosylated hemoglobin (HbA1c) levels, obesity indices and diabetic microangiopathies. SETT...
Background MRI-derived T1 times are associated with diffuse interstitial myocardial fibrosis. LV diastolic dysfunction and fibrosis are important components of cardiac disease, but their relationship has not been firmly established. Early diastolic strain rate (Epeak) has been validated as an indicator of diastolic function by tagged MRI. We derive a novel strain relaxation index (SRI) based on...
OBJECTIVE To investigate relative contributions of glucose status and arterial stiffness to markers of left ventricular (LV) systolic and diastolic dysfunction after 8 years of follow-up. RESEARCH DESIGN AND METHODS In the population-based prospective Hoorn Study, 394 individuals with preserved LV systolic and diastolic function participated, of whom 87 had impaired glucose metabolism and 128...
Objectives: To examine the relation of arterial compliance to diastolic dysfunction in hypertensive patients with suspected diastolic heart failure (HF). Patients: 70 medically treated hypertensive patients with exertional dyspnoea (40 women, mean (SD) age 58 (8) years) and 15 normotensive controls. Main outcome measures: Mitral annular early diastolic velocity with tissue Doppler imaging and f...
BACKGROUND Diabetes mellitus (DM) is associated with mitochondrial oxidative stress. We have shown that myocardial oxidative stress leads to diastolic dysfunction in a hypertensive mouse model. Therefore, we hypothesized that diabetes mellitus could cause diastolic dysfunction through mitochondrial oxidative stress and that a mitochondria-targeted antioxidant (MitoTEMPO) could prevent diastolic...
It has been suggested that, “As a stand-alone term, diastolic dysfunction is ambiguous (1). A clear distinction between abnormalities of active and passive diastolic properties (2,3) needs to be established. The cellular and molecular mechanisms governing these 2 aspects of diastole are distinct and not directly linked.” We agree and welcome new insights into the fundamental physiologic princip...
OBJECTIVE Diastolic dysfunction is associated with increased arterial stiffness in patients with hypertension. However, the role of arterial stiffness in diastolic dysfunction in subjects without hypertension has not been fully established. MATERIALS AND METHODS A total of 287 subjects (male:female ratio 121:166, mean age 53.0±14.4 years) without hypertension or any heart disease who simultan...
BACKGROUND Isolated atrial fibrillation (AF) is associated with mild enlargement of the left atrium (LA) and left ventricular (LV) diastolic dysfunction. The impact of ablation of isolated AF on left chamber size and function is unclear, and whether diastolic dysfunction is the cause or the consequence of AF remains unknown. The objective of this prospective study was to evaluate the impact of ...
OBJECTIVES To examine the relation of arterial compliance to diastolic dysfunction in hypertensive patients with suspected diastolic heart failure (HF). PATIENTS 70 medically treated hypertensive patients with exertional dyspnoea (40 women, mean (SD) age 58 (8) years) and 15 normotensive controls. MAIN OUTCOME MEASURES Mitral annular early diastolic velocity with tissue Doppler imaging and ...
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