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Preanalytical and Analytical Phase Considerations Are Important When Studying the Platelet-to-lymphocyte Ratio and Red Blood Cell Distribution Width

      S-L Miao et al. have recently published an article entitled “Role of platelet to lymphocyte ratio and red cell distribution width in predicting postoperative complications in patients with acute mesenteric ischemia” in Annals of Vascular Surgery.
      • Miao S.L.
      • Lin T.T.
      • Chen L.
      • et al.
      Role of platelet to lymphocyte ratio and red cell distribution width in predicting postoperative complications in patients with acute mesenteric ischemia.
      I thank the authors for their potentially useful contribution to the expanding literature regarding the use of complete blood cell count (CBC)–derived analytes and parameters in disease diagnosis and risk stratification. In addition to their valuable comments, I would like to add some additional remarks about the technical aspects of the platelet-to-lymphocyte ratio (PLR) and red blood cell distribution width (RDW) that may be of interest 1) to the editors and readership of the journal, 2) to researchers who propose to implement the PLR and/or RDW in their own work, and 3) to clinicians who are considering the use of these data in patients with acute mesenteric ischemia.
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