نتایج جستجو برای: slow coronary flow
تعداد نتایج: 761495 فیلتر نتایج به سال:
The Coronary slow flow phenomenon or cardiac syndrome Y is a relatively newly described microvascular coronary artery disorder that is still not fully understood. It is thought to be caused by increased flow resistance in the microvascular coronary artery beds. Patients affected by the CSY are typically young patients who suffer from myocardial ischemia at rest. Ischemia is often recurrent and ...
PURPOSE Coronary artery ectasia (CAE) is defined as a dilatation of an arterial segment to a diameter at least 1.5 times that of the adjacent artery. It is characterized by slow flow, predisposing to thrombosis. The TIMI frame count (TFC) technique has been successfully used for the assessment of coronary flow velocity using coronary angiograms (CA). Our aim was to compare TFC with magnetic res...
BACKGROUND Flow patterns and shear forces in native coronary arteries are more protective against neointimal hyperplasia than those in femoral arteries. Yet, the caliber mismatch with their target arteries makes coronary artery bypass grafts more likely to encounter intimal hyperplasia than their infrainguinal counterparts due to the resultant slow flow velocity and decreased wall stress. To al...
OBJECTIVE The underlying mechanism of coronary slow flow (CSF) has not yet been clarified, although many studies have been conducted to understand its pathophysiology. In this study, we investigated the role of a very potent vasoconstrictor, urotensin-II (UII), in the pathophysiology of CSF. This prospective and controlled investigation aimed to evaluate the association between CSF and serum le...
Exercise Q, R, and S wave amplitude changes, called the QRS score, have been reported to be a marker of exercise-induced myocardial ischemia. Therefore, in this study, using the exercise QRS score, we sought to determine if slow coronary flow (SCF) phenomenon is associated with the exercise-induced myocardial ischemia. This retrospective study included 23 patients evaluated for suspected corona...
DESCRIPTION Coronary slow flow (CSF) is a phenomenon characterised by delayed opacification of coronary arteries in the absence of epicardial stenosis, in which microvascular and endothelial dysfunction have been implicated in pathophysiology. The association between acute coronary syndromes (ACS) and Behcet’s syndrome is well known but rare, and is especially important due to the tendency to a...
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