Red cell distribution width is an inflammatory predictor marker of contrast induced nephropathy in patients undergoing percutaneous coronary intervention.

Red blood cell distribution width (RDW) is an inflammatory biomarker reported in complete blood cell (CBC) counts. High RDW defines a proinflammatory state. Contrast-induced nephropathy (CIN) is an important and common complication in percutaneous coronary intervention (PCI) treated patients.