title: Relationship between red cell distribution width and contrast-induced nephropathy in patients who underwent primary percutaneous coronary intervention.
abstract: OBJECTIVE
  This study evaluated the relationship between contrast-induced nephropathy (CIN) and red cell distribution width (RDW) in patients who underwent primary percutaneous coronary intervention (PCI).
  
  
  METHODS
  A total of 359 patients with ST elevation myocardial infarction (STEMI) who had undergone primary PCI were included in the study. An increase of 25% in serum creatinine value after 48 h, or an increase of >0.5 mg/dL in the basal value was defined as CIN.
  
  
  RESULTS
  Of the patients included in the study, 49 (13.8%) developed CIN. Compared to the CIN-negative group, CIN-positive patients had increased RDW values (16.9 ± 2.00 and 14.8 ± 2.14 respectively, p<0.001). The latter were also older patients, and had increased age rates of diabetes mellitus, baseline creatinine, ∆-creatinine and amount of contrast media were higher and left ventricular ejection fraction and baseline glomerular filtration rate (GFR) were lower in the CIN-positive group than in the CIN-negative group. A statistically weak correlation was found between RDW and change in creatinine levels (∆-creatinine) (r=0.250, p=0.002). Diabetes mellitus (odds ratio [OR]: 3.252, 95% CI=1.184-8.951, p=0.022), high RDW (OR: 1.716, 95% CI=1.363-2.157, p<0.001), baseline low GFR (OR: 0.941, 95% CI=0.925-0.971, p<0.001), ∆-creatinine (OR: 1.197, 95% CI=1.061-2.986, p=0.006) and increased amount of contrast media (OR: 1.187, 95% CI=1.048-3.02, p=0.001) used were observed as independent predictors of CIN.
  
  
  CONCLUSIONS
  The study found diabetes mellitus, high RDW, basal low GFR, ∆-creatinine and increased contrast amount used to be the independent predictors of CIN in STEMI patients who underwent PCI.
authors.affiliation: Department of Cardiology, Namik Kemal University Faculty of Medicine, Tekirdag, Turkey.
authors.forename: Dursun Çayan
authors.initials: DÇ
authors.lastname: Akkoyun
authors.affiliation: Department of Cardiology, Namik Kemal University Faculty of Medicine, Tekirdag, Turkey.
authors.forename: Aydın
authors.initials: A
authors.lastname: Akyüz
authors.affiliation: Department of Urology, Namik Kemal University Faculty of Medicine, Tekirdag, Turkey.
authors.forename: Ömer
authors.initials: Ö
authors.lastname: Kurt
authors.affiliation: Department of Internal Medicine, Namik Kemal University Faculty of Medicine, Tekirdag, Turkey.
authors.forename: Bülent
authors.initials: B
authors.lastname: Bilir
authors.affiliation: Department of Cardiology, Namik Kemal University Faculty of Medicine, Tekirdag, Turkey.
authors.forename: Şeref
authors.initials: Ş
authors.lastname: Alpsoy
authors.affiliation: Department of Cardiology, Namik Kemal University Faculty of Medicine, Tekirdag, Turkey.
authors.forename: Niyazi
authors.initials: N
authors.lastname: Güler
mesh_terms: D000328:Adult; D000368:Aged; D003287:Contrast Media / Q000009:adverse effects*; D004909:Erythrocyte Indices; D005260:Female; D006801:Humans; D007674:Kidney Diseases / Q000097:blood / Q000139:chemically induced / Q000209:etiology*; D008297:Male; D008875:Middle Aged; D009203:Myocardial Infarction / Q000628:therapy*; D062645:Percutaneous Coronary Intervention / Q000009:adverse effects; D011183:Postoperative Complications / Q000097:blood / Q000209:etiology*; D012372:ROC Curve; D015641:Radiography, Interventional / Q000009:adverse effects
chemical_list: D003287:Contrast Media