The relationship between hemoglobin to red cell distribution width (RDW) ratio (HRR) and prognosis in patients with acute coronary syndrome

Aims: The use of hematological parameters in the prognostic assessment of acute coronary syndrome (ACS) has become common in recent years. Thus, our study aimed to evaluate the relationship between hemoglobin to red cell distribution width (RDW) ratio (HRR) and prognosis of these patients. Methods: A retrospective evaluation was conducted on patients who presented to the emergency department between 01.09.2023 and 01.04.2024 and received a diagnosis of ACS. HRR was determined by dividing the hemoglobin concentration by the red cell distribution width (RDW). The patients were categorized into two groups based on their HRR values: high HRR patients and low HRR patients, using a specified HRR cut-off value. Statistical comparisons were conducted on all parameters between the two patient groups. The variables potentially linked to mortality were analyzed using receiver operating characteristic (ROC) analysis. Results: The in-hospital mortality rate, vasopressor needs, and MV support requirements were significantly higher in the low HRR (≤0.828) group than in the high HRR (>0.828) group (p