نتایج جستجو برای: aortic stenosis
تعداد نتایج: 160989 فیلتر نتایج به سال:
Transcatheter aortic valve implantation (TAVI) is a potential treatment for patients with severe aortic stenosis. Many patients with aortic stenosis are very elderly and/or have multiple medical comorbidities, thus indicating a high-risk, often prohibitive, for surgery. This procedure is being evaluated as an alternative to open surgery for high-risk patients with aortic stenosis and as an alte...
Percutaneous aortic valvuloplasty is reportedly a useful tool for the management of critical and severe aortic stenosis with cardiogenic shock. However, early percutaneous coronary intervention for cardiogenic shock is beneficial for elderly patients with acute myocardial infarction. We describe a patient with critical aortic stenosis who presented with severe coronary stenosis of the left main...
Two-dimensional and Doppler echocardiography was performed prospectively in 100 patients with aortic stenosis who were undergoing clinically indicated cardiac catheterization. The purpose of this study procedure was to determine various Doppler variables predictive of the severity of aortic stenosis and to compare Doppler- and catheterization-derived aortic valve areas. Doppler-derived mean gra...
Aortic stenosis affects 3% of persons older than 65 years. Although survival in asymptomatic patients is comparable to that in age- and sex-matched control patients, it decreases rapidly after symptoms appear. During the asymptomatic latent period, left ventricular hypertrophy and atrial augmentation of preload compensate for the increase in afterload caused by aortic stenosis. As the disease w...
AIM The standard tool to evaluate and follow up patients with aortic stenosis is Echocardiography. Nevertheless, most of the current echocardiographic parameters have limitations in predicting symptom onset and clinical outcome. Association of BNP with symptom onset in aortic stenosis although validated may be used as a hemodynamic marker to predict outcome in severe AS. Aim is to investigate t...
Degenerative aortic valve stenosis includes a range of disorder severity from mild leaflet thickening without valve obstruction, "aortic sclerosis", to severe calcified aortic stenosis. It is a slowly progressive active process of valve modification similar to atherosclerosis for cardiovascular risk factors, lipoprotein deposition, chronic inflammation, and calcification. Systemic signs of infl...
BACKGROUND Aortic stenosis is the most common age-related valvular pathology. Patients with aortic stenosis and myocardial fibrosis have worse outcome but the underlying mechanism is unclear. Lipoprotein(a) is associated with adverse cardiovascular risk and is elevated in patients with aortic stenosis. Although mechanistic pathways could link Lipoprotein(a) with myocardial fibrosis, whether the...
The blood hypercoagulability in pregnancy increases significantly the incidence of thrombosis of mechanical valves. Acquired supravalvular aortic stenosis is extremely rare. We report the case of an immediate postpartum patient with aortic mechanical prostheses and acquired supravalvular aortic stenosis who underwent emergency heart surgery, with severe hemodynamic instability, using adapted su...
BACKGROUND Valvular aortic stenosis is the most common cause of left ventricular hypertrophy due to gradually increasing pressure work. As the stenosis develop the left ventricular hypertrophy may lead to congestive heart failure, increased risk of perioperative complications and also increased risk of sudden death. A functional porcine model imitating the pathophysiological nature of valvular ...
EDITOR: Patients with hip fracture are often frail and elderly, and co-morbidities are frequently present. The following case describes perioperative use of continuous epidural blockade in a patient with hip fracture and a severe aortic stenosis. This has not been reported before. There is no evidence favouring general anaesthesia to neuroaxial blockade in patients with aortic stenosis. Several...
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