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ORIGINAL ARTICLE
Year : 2014  |  Volume : 11  |  Issue : 2  |  Page : 88-91

Association of red cell distribution width, haematocrit and other RBC indices with coronay artery disease: A case control study


1 Department of Physiology, Shri Dharmasthala Manjunatheshwara College of Medical Sciences, Sattur, Dharwad, Karnataka, India
2 Department of General Medicine, Shri Dharmasthala Manjunatheshwara College of Medical Sciences, Sattur, Dharwad, Karnataka, India
3 Department of Pathology, Shri Dharmasthala Manjunatheshwara College of Medical Sciences, Sattur, Dharwad, Karnataka, India

Correspondence Address:
Vitthal Khode
Department of Physiology, SDM College of Medical Sciences, Sattur, Dharwad, Karnataka - 580 009
India
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/0189-7969.142088

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Background: Coronary artery disease (CAD) is mainly caused by atherosclerosis and its complications. Red blood cell distribution width (RDW) is a numerical measure of the variability in size of circulating erythrocytes. Several studies reported a strong, independent relation between higher levels of RDW, hematocrit (Hct), and the risk of death and cardiovascular events in people with prior CAD. We tested the hypothesis that RDW, Hct, and other red blood corpuscle (RBC) indices are associated with CAD. Hence, we measured RDW, Hct, and other RBC indices in AMI and stable CAD (SCAD) and compared them with age- and sex-matched controls. Objectives: To study the changes in RDW and RBC indices in acute myocardial infarction (AMI) and SCAD and compare them with age- and sex-matched controls. Materials and Methods: This was a comparative study of 128 subjects (39 patients with AMI, 24 patients with SCAD, and 65 controls). Venous sample were drawn from AMI subjects on admission (within 6 h of chest pain) and collected in standardized ethylenediaminetetraacetic acid (EDTA) sample tubes. RDW and RBC indices were assayed within 30 min of blood collection, using Sysmex KX21-N autoanalyzer. Venous samples were also drawn from stable CAD patients who were admitted for angiography and subject attending routine checkups. Results: There was no significant difference in RDW in patients with CAD (14.12 ± 1.31%) as compared to controls (15.62 ± 6.51%). There was no significant difference in RWD in patients with AMI (14.36 ± 1.4%) as compared to stable CAD (13.7 ± 1.09%) and controls (15.62 ± 6.51%). There was no significant difference in Hct in patients with CAD (43.16 ± 5%) as compared to controls (41.9 ± 6.9%). Conclusions: There was no association between RWD, Hct, and other RBC indices with CAD, AMI, and stable CAD.


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