Please use this identifier to cite or link to this item: http://hdl.handle.net/2440/80760
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Type: Journal article
Title: Myocardial 'no-reflow' - Diagnosis, pathophysiology and treatment
Author: Wong, T.
Puri, R.
Richardson, J.
Worthley, M.
Worthley, S.
Citation: International Journal of Cardiology, 2013; 167(5):1798-1806
Publisher: Elsevier Sci Ireland Ltd
Issue Date: 2013
ISSN: 0167-5273
1874-1754
Statement of
Responsibility: 
Paul Athanasiov, Michael Goggin, Natalie Cutri, Umberto Boffa and Guy Maddern
Abstract: In acute ST-segment elevation myocardial infarction (STEMI), improvement in reperfusion strategies has contributed to improvement in mortality. Nonetheless up to 40-50% of patients who achieve satisfactory epicardial patency do not necessarily achieve patency at the coronary microvascular level, a condition referred to as the 'no-reflow' phenomenon. The 'no-reflow' phenomenon is associated with a worse prognosis at follow up. The pathogenic mechanisms underlying the 'no-reflow' phenomenon is complex and dynamic. This includes a variable combination of mechanisms including distal atherothrombotic embolisation, ischaemic injury, reperfusion injury and heightened susceptibility of coronary microcirculation to injury. Accurate detection of 'no-reflow' is crucial because it is independently associated with adverse ventricular remodelling and patient prognosis. The diagnosis of 'no-reflow' can be made using angiography, electrocardiography, nuclear scintigraphy, myocardial contrast echocardiography or cardiovascular magnetic resonance (CMR). Despite our improved understanding on the pathogenesis and diagnosis of 'no-reflow', the treatment of 'no-reflow' remains the 'Achilles heel' in the treatment of patients with acute myocardial infarction. Several therapeutic strategies have been tested for the prevention and treatment of 'no-reflow', however none have been associated with improvement in clinical outcomes. Therefore there exists a need for 'in-lab' tools that will be able to aid early identification of patients at increased risk of 'no-reflow'. This may enable patients at heightened risk of 'no-reflow' to be treated with the most appropriate individualised treatment early. We review the pathogenic mechanisms and diagnostic techniques of the 'no-reflow' phenomenon as well as the prevention and treatment strategies of the candidate mechanisms.
Keywords: Animals; Humans; Myocardial Infarction; Magnetic Resonance Imaging; Electrocardiography; Treatment Outcome; Myocardial Reperfusion; No-Reflow Phenomenon
Rights: © 2012 Elsevier Ireland Ltd.
RMID: 0020124817
DOI: 10.1016/j.ijcard.2012.12.049
Appears in Collections:Medicine publications

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