الفهرس 
INTRODUCTIONOnly 14 pages are availabe for public view
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Abstract
Acute coronary syndrome (ACS) refers to a spectrum of clinical presentations ranging from those for ST segment elevation myocardial infarction (STEMI) to presentations found in non ST segment elevation myocardial infarction (NSTEMI) or unstable angina.
Acute coronary syndrome (ACS) is caused primarily by atherosclerosis. Most cases of ACS occur from disruption of a previously non severe lesion (an atherosclerotic lesion that was previously hemodynamically insignificant yet vulnerable to rupture). The vulnerable plaque is typified by a large lipid pool, numerous inflammatory cells, and a thin, fibrous cap.
An excellent example of clinically useful markers in ACS is provided by NLR.
The aim of this work is to determine the relation between neutrophil to lymphocyte ratio and the severity of coronary artery disease.
The study was carried out on 100 adult patients of both sexes above 18 years old, presented with acute coronary syndrome, they were divided into 3 main groups: 34 patients presented with unstable angina, 23 patients presented with non-STEMI and 43 patients presented with STEMI.
Pregnant females, patients known to have chronic renal disease, patients known to have chronic liver diseases, patients with acute or known to have chronic inflammation and patients known to have collagen diseases were excluded from the study.