Citation: American Heart Journal. 166(1):104-9, 2013 Jul..Journal: American heart journal.ISSN: 0002-8703.Full author list: Fatemi O; Torguson R; Chen F; Ahmad S; Badr S; Satler LF; Pichard AD; Kleiman NS; Waksman R.UI/PMID: 23816028.Subject(s): Aged | Coronary Artery Disease/bl [Blood] | *Coronary Artery Disease/su [Surgery] | Erythrocyte Count | *Erythrocytes | Female | Follow-Up Studies | Humans | Male | Middle Aged | *Percutaneous Coronary Intervention | *Postoperative Care/mt [Methods] | *Postoperative Hemorrhage/bl [Blood] | Postoperative Hemorrhage/di [Diagnosis] | Predictive Value of Tests | Prognosis | Retrospective Studies | Risk Factors | StentsInstitution(s): MedStar Heart & Vascular Institute | MedStar Health Research InstituteActivity type: Journal Article.Medline article type(s): Journal ArticleOnline resources: Click here to access onlineDigital Object Identifier: http://dx.doi.org/10.1016/j.ahj.2013.04.006 (Click here)Abbreviated citation: Am Heart J. 166(1):104-9, 2013 Jul.Local Holdings: Available online from MWHC library: 1995 - present, Available in print through MWHC library: 1999 - 2006.Abstract: BACKGROUND: Red cell distribution width (RDW), a measure of variability in the size of circulating erythrocytes, is an independent predictor of mortality in cardiovascular disease and in patients undergoing percutaneous coronary intervention (PCI). We set out to determine if RDW is a prognostic marker of major bleeding post-PCI.Abstract: METHODS: The study population included 6,689 patients who were subjected to PCI. The RDW was derived from a complete blood count drawn before PCI. Major inhospital bleeding was defined as a hematocrit decrease >12%, hemoglobin drop of >4, transfusion of >2 units of packed red blood cells, retroperitoneal, or gastrointestinal or intracranial bleeding. Multivariable logistic analysis of major inhospital bleeding was performed using a logistic regression model that comprised the National Cardiovascular Data Registry (NCDR) risk score model as a single variable.Abstract: RESULTS: Major bleeding (P < .001), vascular complications (P = .005), and transfusions (P < .001) were significantly higher in patients with higher baseline RDW values. After adjustment for known bleeding correlates, RDW was a significant predictor for major bleeding (odds ratio 1.12, 95% CI 1.06-1.19, P < .001). Although the c statistic of the NCDR risk prediction model 20140821d from 0.730 to 0.737 (P = .032), the net reclassification improvement increased significantly after the addition of RDW as a continuous variable (17.3% CI 6.7%-28%, P = .002).Abstract: CONCLUSIONS: Red cell distribution width, an easily obtainable marker, has an independent, linear relationship with major bleeding post-PCI and incrementally improves the well-validated NCDR risk prediction model. These data suggest that further investigation is necessary to determine the relationship of RDW and post-PCI bleeding. Copyright 2013 Mosby, Inc. All rights reserved.