Correlation of red cell distribution width with inflammatory markers and its prognostic value in patients with diabetes and coronary artery disease
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Abstract
Background. Recent studies have shown red blood cell distribution width (RDW) as a marker for severity and prognosis in coronary artery disease patients. Other studies have also correlated RDW with diabetes mellitus and inflammation. However, such correlation and prognosis in patients with concomitant coronary artery disease and diabetes after percutaneous intervention remains unclear.
Material and methods. Our study group comprised of 730 subjects including 700 patients (cases) and 30 normal subjects (control group). Patients who presented with coronary artery disease were divided into diabetic and non-diabetic groups. All patients had RDW measured at admission and percutaneous intervention was done. Follow-up for adverse events was carried out between 6 to 12 months.
Results. RDW was elevated in patients as compared to control group (p < 0.05). RDW correlated well with inflammatory markers including erythrocyte sedimentation rate, C-reactive protein, HbA1c, white blood cells and troponin. RDW was higher with more severe atherosclerosis based on SYNTAX and Gensini scores (p < 0.05). Prognosis was found to be worse in patients with high RDW as well as in diabetics.
Conclusions. RDW has positive correlation with other inflammatory marker. It may be used as a marker in determining the severity and prognosis in diabetic patients with coronary artery disease.
Keywords: red cell distribution widthcoronary artery diseasediabetes
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