Noninvasive Precursors of Coronary Chronic Total Occlusions
نویسندگان
چکیده
منابع مشابه
Percutaneous Coronary Intervention for Chronic Total Occlusions
I mpasses are common in everyday life. When they occur in coronary arteries as chronic total occlusions (CTOs), they may be difficult to treat. Successful treatment of CTOs sometimes requires a nonconformist approach based on “negative thinking,” which is described in philosophical circles as the mindset that “negates” the possibility of failure and replaces it with the potentiality of success ...
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BACKGROUND Microvascular dysfunction is defined as reduced coronary flow reserve in the absence of an epicardial stenosis. This study determined its prevalence and relation to regional myocardial function in chronic total coronary occlusions (TCO). METHODS AND RESULTS After recanalization and stenting of a TCO (duration, >4 weeks) in 42 patients, coronary flow velocity reserve (CFVR) was meas...
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A chronic total occlusion (CTO) describes a completely occluded coronary artery. This type of lesion is found in about 18% of all significant lesions in patients with coronary artery disease. A system of collateral connections are observed in almost all of these lesions, which have the capacity to prevent myocardial necrosis and may even uphold metabolic supply to the territory distal to an occ...
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Background. Angioplasty of chronically totally occluded vessels has been associated with a success rate well below and restenosis rate well above that for angioplasty of stenosed segments. However, long-term clinical outcome after successful revascularization of a chronically totally occluded vessel has not been reported in detail. Methods and Results. Accordingly, data for 480 patients undergo...
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more technically challenging than twodimensional echocardiography and this is of particular importance in the CRT patient. Image acquisition requires a significant breath hold which is often difficult for the heart failure patient. Several regular cardiac beats are required and this is not always possible due to the presence of ectopy or atrial fibrillation. The large ventricular volumes seen i...
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ژورنال
عنوان ژورنال: JACC: Cardiovascular Imaging
سال: 2019
ISSN: 1936-878X
DOI: 10.1016/j.jcmg.2019.01.005