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Submitted: 08 Jun 2020
Accepted: 18 Dec 2020
ePublished: 01 Mar 2021
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J Cardiovasc Thorac Res. 2021;13(2): 125-130.
doi: 10.34172/jcvtr.2021.12

Scopus ID: 85106483642
  Abstract View: 130
  PDF Download: 136

Original Article

Performance of neutrophil to lymphocyte ratio for the prediction of long-term morbidity and mortality in coronary slow flow phenomenon patients presented with non-ST segment elevation acute coronary syndrome

Ahmet Zengin 1* ORCID logo, Mehmet Karaca 2, Emre Aruğaslan 3, Ersin Yıldırım 4, Mehmet Baran Karataş 1, Yiğit Çanga 1, Ayşe Emre 1, Gülşah Tayyareci 1

1 Department of Cardiology, University of Health Scienses, Dr. Siyami Ersek Training and Research Hospital, Istanbul, Turkey
2 Department of Cardiology, Private Ataşehir Memorial Hospital, Istanbul, Turkey
3 Department of Cardiology, University of Health Scienses, Bilkent City Hospital, Ankara, Turkey
4 Department of Cardiology, University of Health Sciences Ümraniye Training and Research Hospital Istanbul, Turkey

Abstract

Introduction: In this study, we aimed to determine if neutrophil to lymphocyte ratio could predict long term morbidity and mortality in patients who hospitalized for non-ST segment elevation acute coronary syndrome (NSTE-ACS) and had coronary slow flow on coronary angiography.
Methods: In this observational study, 111 patients who presented with NSTE-ACS and diagnosed with coronary slow flow phenomenon on angiographic examination were included. Neutrophil to lymphocyte ratio (NLR) calculated as the ratio of the number of neutrophils to the number of lymphocytes. Patients classified into three groups according to NLR values. The term coronary slow flow phenomenon was depicted by calculating Thrombolysis in Myocardial Infarction frame count.Patients were followed up and the occurrence of recurrent angina, recurrent myocardial infarction, and long-term mortality was determined using medical records, phone calls, or face-to-face interviews. P values <0.05 considered to indicate statistical significance.
Results: Recurrent angina and myocardial infarction occurred more frequently in the highest NLR tertile compared with middle and lowest NLR tertiles. High NLR group (NLR≥ 3.88 n=38) was significantly associated with younger age and smoking status. WBC, troponin I and CRP levels increased as the NLR tertile increased. Recurrent myocardial infarction and angina showed strong relationship with increasing NLR values. In multivariate regression analyses smoking and high NLR levels were independent predictors of recurrent myocardial infarction (HR:4.64 95%CI 0.95-22.52 P=0.04, HR: 1.48 95%CI 1.16-1.90 P<0.01 respectively) in the long term follow up.
Conclusion: Our study demonstrated that high NLR values can be a valuable prognostic tool in the long term follow up of patients who presented with NSTE-ACS and diagnosed with slow flow phenomenon on coronary angiography.
Keywords: Neutrophil Lymphocyte Ratio, Coronary Slow Flow, Acute Coronary Syndrome
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