نتایج جستجو برای: aortic regurgitation
تعداد نتایج: 122804 فیلتر نتایج به سال:
We report a relatively rare case of acute aortic regurgitation due to spontaneous laceration of aorta without dissecting aneurysm. A 73-year-old male who had complained of sudden onset of chest discomfort was admitted to our hospital, and severe aortic regurgitation with aortic valve prolapse was detected by echocardiography. There were not any echographic and radiographic evidences of dissecti...
The prevalence and clinical significance of aortic valve prolapse were determined prospectively in 2000 consecutive patients undergoing routine clinical cross sectional echocardiography. Two hundred and twelve patients were excluded because the aortic cusps were not adequately visualised. Aortic valve prolapse was defined as downward displacement of cuspal material below a line joining the poin...
BACKGROUND Aortic valve regurgitation is usually caused by impaired coaptation of the aortic valve cusps during diastole. Hypercholesterolemia produces aortic valve lipid deposition, fibrosis, and calcification in both mice and humans, which could impair coaptation of cusps. However, a link between hypercholesterolemia and aortic regurgitation has not been established in either species. The pur...
BACKGROUND The typical cardiac manifestations of Marfan syndrome are aortic regurgitation with progressive dilatation of the aortic root, which may cause dissection and rupture of the ascending aorta, mitral valve prolapse and mitral valve regurgitation. In this study, we aimed to show echocardiographic findings in 11 patients with Marfan syndrome. METHODS Diagnosis of Marfan syndrome was bas...
OBJECTIVE In this study we compared cardiothoracic ratio on chest radiography and left ventricular dimensions from echocardiography in patients with left heart valvular regurgitation. METHODS The studied population consisted of 107 patients (55 male, 52 female) aged 7 to 25 years (11.6+/-4.7 years) with isolated mitral or aortic regurgitation. Chest radiography and echocardiographic examinati...
This study was undertaken to assess the contribution of Doppler echocardiography to the quantification of aortic valve regurgitation. Ultrasound examination was performed by recording aortic arch blood flow from the suprasternal notch. A non-invasive index of valve regurgitation was obtained by calculating the ratio between the maximal amplitude of forward flow during systole and the amplitude ...
Transcatheter aortic valve implantation (TAVI) has become the standard of care for elderly high-risk patients presenting severe and symptomatic aortic valve stenosis, while surgical aortic valve replacement (sAVR) is still considered as the treatment of choice for younger patients and patients with low and intermediate risk profiles (1,2). With more than 100,000 implants worldwide, TAVI has cha...
Two patients had mitral valve repair for severe regurgitation in the presence of a Marfan aortic root aneurysm. Concomitant personalized external aortic root support was used at the same operation to halt aneurysm progression and to correct mild aortic regurgitation.
Some patients with aortic regurgitation develop irreversible left ventricular dysfunction. The purpose of this study was to noninvasively examine left ventricular function in patients with aortic regurgitation by determining the end-systolic stress-shortening relationship using M-mode echocardiography. Ten normal volunteers and 10 patients with chronic, isolated aortic regurgitation were studie...
Background: Diastolic retrograde flow in the descending aorta has been associated to the severity of aortic regurgitation; however, most of the parameters related to flow velocity are not validated with a reference imaging technique. Objective: The aim of this study was to assess the usefulness of diastolic retrograde flow in the descending thoracic aorta and the abdominal aorta in the quantifi...
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