Title: Coronary Subclavian Steal Syndrome <br/>Author: Semhar Tewelde<br/><a href='http://umem.org/profiles/faculty/352/'>[Click to email author]</a><hr/><p>
<strong><u>Coronary Subclavian Steal Syndrome </u></strong></p>
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Coronary subclavian steal syndrome (CSSS) is defined as coronary ischemia resulting from the reversal of flow in an internal mammary arterial graft usually secondary to subclavian stenosis.</p>
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Angiographic subclavian stenosis is defined as greater than 50% narrowing or greater than 20mmHg pressure difference across a lesion.</p>
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CSSS occurs in up to 4.5% of patients with prior CABG & common in older individuals with existing peripheral vascular disease.</p>
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CSSS most commonly manifests as stable angina, but frequently presents as unstable angina, acute myocardial infarction, acute systolic heart failure or even cardiogenic shock.</p>
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Screening for subclavian stenosis prior to CABG w/bilateral noninvasive blood pressure assessment, and a 15 mmHg or greater discordance should elicit further imaging.</p>
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Percutaneous revascularization is the first-line therapy for CSSS and has excellent long-term outcomes. </p>
<fieldset><legend>References</legend>
<p>
Sintek M, Coverstone E, Singh J. Coronary Sunclavian Steal Syndrome. Current Opinion in Cardiology. Issue: Volume 29(6) pgs. 506-513 November 2014.</p>
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