نتایج جستجو برای: prosthetic valves
تعداد نتایج: 28909 فیلتر نتایج به سال:
Patients This study was a pooled analysis of 2 large retrospective T he American College of Cardiology/American Heart Association (ACC/AHA) recently published their revised guidelines on the selection of prosthetic valves.1 According to their class I recommendation, patient values and preferences must be taken into account, based on full disclosure and understanding of the indications for antic...
insufficiency aims at relief of symptoms, minimisation of complications and improvement of survival. The development of prosthetic mitral rings and the establishment of reconstruction methods have led to wide application of these techniques. The ideal prosthetic valve has not yet been invented: late complications of both prosthetic mechanical valves (bleeding, thromboembolic events) and tissue ...
Development of antithrombin antibodies following surgery in patients with prosthetic cardiac valves.
Although antibody inhibitors directed against blood coagulation factors are well known, antibody inhibitors directed against thrombin are rare. We describe three postsurgical patients with prosthetic cardiac valves who developed serum autoantibodies reactive with human and bovine thrombin, as demonstrated by coagulation studies and immunoblotting. Despite marked prolongation of the thrombin tim...
Mechanical heart valves are associated with a risk of thromboembolism and anticoagulation is generally recommended. However, this is inevitably associated with a risk of intracranial bleeding. The case of a patient who sustained an intracranial bleed while taking warfarin for a prosthetic aortic valve and a further two intracranial bleeds while on heparin as an inpatient is discussed and the li...
Ö o ( c p e fi ( ( t d v ( l With the advent of the Starr-Edwards mechanical mitral and aortic valves in the 1960s, the surgical era of the treatment of cardiac valvular disease began in earnest. Although considered definitive, valve replacement surgery effectively represents an exchange of the pathophysiology of severe valvular dysfunction for the diseases and complications associated with pro...
Mechanical heart valves are associated with a risk of thromboembolism and anticoagulation is generally recommended. However, this is inevitably associated with a risk of intracranial bleeding. The case of a patient who sustained an intracranial bleed while taking warfarin for a prosthetic aortic valve and a further two intracranial bleeds while on heparin as an inpatient is discussed and the li...
INTRODUCTION Turbulence, characterized by velocity fluctuations, is a sign of suboptimal hemodynamics in prosthetic heart valves [1]. Turbulence causes pressure drops and exposes endothelial cells and blood constituents to abnormal stresses which can lead to blood trauma and promote the pathogenesis of atherosclerosis. Phase-contrast MRI (PC-MRI) has previously been shown to be valuable for the...
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