Spontaneous echo contrast: Identification by videodensity analysis
نویسندگان
چکیده
منابع مشابه
Spontaneous echo contrast videodensity is flow-related and is dependent on the relative concentrations of fibrinogen and red blood cells.
OBJECTIVES The purposes of the present study were to: 1) determine whether fibrinogen (Fg) is the plasma protein responsible for spontaneous echo contrast (SEC), and 2) investigate modulators of SEC. BACKGROUND Spontaneous echo contrast has been linked to the development of thromboemboli. The blood products and their interaction responsible for SEC formation have not been fully elucidated. ...
متن کاملSpontaneous echo contrast caused by platelet and leukocyte aggregates?
BACKGROUND AND PURPOSE Spontaneous echocardiographic contrast (SEC) is correlated to clinical thromboembolic events. We sought to determine the origin of SEC by utilizing direct analysis of left atrial blood. METHODS We examined the blood of 13 patients with and 19 without SEC. Blood samples were taken from the femoral vein and artery and from the right and left atria after transseptal punctu...
متن کاملSpontaneous echo contrast and hemorheologic abnormalities in cerebrovascular disease.
BACKGROUND AND PURPOSE Spontaneous echo contrast (SEC) is thought to represent a risk factor for cardioembolic stroke. In vitro studies suggest that SEC results from interaction between red cells and fibrinogen. To better understand the relation between SEC and stroke and to investigate the in vivo genesis of SEC, we examined the relation between SEC, the constituents of the blood, and plasma a...
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OBJECTIVE To determine the relations between left atrial appendage function, spontaneous echo contrast, and thromboembolism in patients with different modes of permanent pacemakers. PATIENTS AND METHODS 88 patients with pacemaker implantation and 25 healthy controls in sinus rhythm had transoesophageal echocardiographic examination of the left atrial appendage. Left atrial size, appendage are...
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Introduction Spontaneous echo contrast (SEC) is a smokelike echo phenomenon with a swirling pattern of blood flow that can be observed in transesophageal echocardiography (TEE) or transthoracic echocardiography (TTE), most often within the left atrium or left ventricle. SEC is first described by Feigenbaum in 1975, which has been observed under conditions of low blood flow velocity, such as rhe...
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ژورنال
عنوان ژورنال: Journal of the American College of Cardiology
سال: 1996
ISSN: 0735-1097
DOI: 10.1016/s0735-1097(96)82439-9