Assessment of Coronary Collateral Circulation in Patients with Chronic Total Occlusion: The Functional Relevance and Estimate the Quality of the Distal Run-offs
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چکیده
Methods: We analyzed the 267 consecutive patients who underwent PCI for CTO. In 119 patients, the distal portion of total occlusion was filled with ipsilateral collateral connections (ipsilateral group), and in 103 patients, it was filled with contralateral collateral connections (contralateral group). The target vessel diameter and dilatation rates of the groups were evaluated and compared for the echocardiographic parameters.
منابع مشابه
مقایسه نتایج زودرس آنژیوپلاستی عروق کرونر در Chronic Total Occlusion با و بدون وجود Bridging Collateral Vessels
Background and purpose: Âim of this research is to study the effect of bridging collateral vessels (BÇVS) on the success of coronary angioplasty in patients with chronic total occlusion (ÇTÔ). Ïn coronary angioplasty of ÇTÔ cases, categorizing of lessions characteristics can be helpful in evaluation of success in angioplasty. There are controversies about the role of BÇVS in the rate of angio...
متن کاملThe Role of Coronary Collaterals in Chronic Total Occlusions
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 The evaluation of new therapeutic modalities to induce collateral growth in coronary artery disease require improved methods of angiographic characterization of collaterals, which should be validated by quantitative assessment of collateral function. METHODS AND RESULTS In 100 patients with total chronic occlusion of a major coronary artery (duration >2 weeks) collaterals were asse...
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Human coronary collaterals are inter-coronary communications that are believed to be present from birth. In the presence of chronic total occlusions, recruitment of flow via these collateral anastomoses to the arterial segment distal to occlusion provide an alternative source of blood flow to the myocardial segment at risk. This mitigates the ischemic injury. Clinical outcome of coronary occlus...
متن کاملPrognostic relevance of coronary collateral function: confounded or causal relationship?
OBJECTIVE To expand the limited information on the prognostic impact of quantitatively obtained collateral function in patients with coronary artery disease (CAD) and to estimate causality of such a relation. DESIGN Prospective cohort study with long-term observation of clinical outcome. SETTING University Hospital. PATIENTS One thousand one hundred and eighty-one patients with chronic st...
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تاریخ انتشار 2012