title: Relationship between platelet-to-lymphocyte ratio and coronary slow flow.
abstract: OBJECTIVE
  The coronary slow flow phenomenon (CSFP), which is characterized by delayed distal vessel opacification in the absence of significant epicardial coronary disease, is an angiographic finding. The aim of this study is to investigate the association between platelet-to-lymphocyte ratio (PLR) and coronary blood flow rate.
  
  
  METHODS
  This is a retrospective observational study. It was based on two medical centers. A total of 197 patients undergoing coronary angiography were included in the study, 95 of whom were patients with coronary slow flow without stenosis in coronary angiography and 102 of whom had normal coronary arteries and normal flow.
  
  
  RESULTS
  The PLR was higher in the coronary slow flow group compared with the control groups (p=0.001). In the correlation analysis, PLR showed a significant correlation with left anterior descending (LAD) artery thrombolysis in myocardial infarction (TIMI) frame count. After multiple logistic regression, high levels of PLR were independently associated with coronary slow flow, together with hemoglobin.
  
  
  CONCLUSIONS
  PLR was higher in patients with CSFP, and we also showed that PLR was significantly and independently associated with CSFP.
authors.affiliation: Department of Cardiology, Faculty of Medicine, Dumlupınar University; Kütahya-Turkey. muhammedoylumlu@yahoo.com.
authors.forename: Muhammed
authors.initials: M
authors.lastname: Oylumlu
authors.forename: Adnan
authors.initials: A
authors.lastname: Doğan
authors.forename: Mustafa
authors.initials: M
authors.lastname: Oylumlu
authors.forename: Abdülkadir
authors.initials: A
authors.lastname: Yıldız
authors.forename: Murat
authors.initials: M
authors.lastname: Yüksel
authors.forename: Fethullah
authors.initials: F
authors.lastname: Kayan
authors.forename: Celal
authors.initials: C
authors.lastname: Kilit
authors.forename: Basri
authors.initials: B
authors.lastname: Amasyalı
mesh_terms: D001783:Blood Flow Velocity; D001792:Blood Platelets; D016022:Case-Control Studies; D017023:Coronary Angiography; D003324:Coronary Artery Disease / Q000097:blood / Q000000981:diagnostic imaging / Q000503:physiopathology*; D005260:Female; D006801:Humans; D008214:Lymphocytes; D008297:Male; D008875:Middle Aged; D011237:Predictive Value of Tests