Predictive Value of Neutrophil-to-Lymphocyte, Aspartate-to-Alanine Aminotransferase, Lymphocyte-to-Monocyte and Platelet-to-Lymphocyte Ratios in Severity and Side of Carotid Artery Stenosis: Are Those Significant?


  • Özgür Altinbaş Gaziantep University, Vocational School of Health Services, Department of Operating Room Services, Gaziantep, Turkey
  • Şeniz Demiryürek Gaziantep University, Medical Faculty, Department of Physiology, Gaziantep, Turkey
  • Mehmet Işik Necmettin Erbakan University, Medical Faculty, Department of Cardiovascular Surgery, Konya, Turkey
  • Ömer Tanyeli Necmettin Erbakan University, Medical Faculty, Department of Cardiovascular Surgery, Konya, Turkey
  • Yüksel Dereli Necmettin Erbakan University, Medical Faculty, Department of Cardiovascular Surgery, Konya, Turkey
  • Niyazi Görmüş Necmettin Erbakan University, Medical Faculty, Department of Cardiovascular Surgery, Konya, Turkey



Aspartate-to-alanine aminotransferase ratio, carotid artery stenosis, lymphocyte-to-monocyte ratio, neutrophil-to-lymphocyte ratio, platelet-to-lymphocyte ratio


Background: Atherosclerosis is a chronic disease that leads to mortality and morbidity by affecting arterial vascular structures. Carotid artery is one of these arterial structures and occlusive disease of carotid artery may cause stroke or cranial ischemic infarction. Inflammation plays a role in the atherosclerotic process. In this study, we aimed to discuss the relationship between the severity and side of carotid artery occlusion and novel inflammatory parameters include platelet-to-lymphocyte, neutrophil-to-
lymphocyte, lymphocyte-to-monocyte, and aspartate-to-alanine aminotransferase ratios.

Methods: One-hundred-fifteen patients who had carotid artery stenosis between 50%-99% and 115 healthy subjects with no carotid artery stenosis or additional disease were included in the study. The relationship between the side and degree of the lesion and platelet-to-lymphocyte, neutrophil-to-lymphocyte, lymphocyte-to-monocyte, and aspartate-to-alanine aminotransferase ratios were studied in the patient group. The patients with carotid artery stenosis and the healthy subjects were compared, in the terms of same parameters. Data were evaluated statistically.

Results: There were no statistically significant differences between the groups, in the terms of platelet-to-lymphocyte, neutrophil-to-lymphocyte, lymphocyte-to-monocyte, and aspartate-to-alanine aminotransferase ratios and the degree of stenosis. There was no statistically significant difference between the sides of the lesions and the parameters above except lymphocyte-to-monocyte ratio. It was statistically significantly higher in left-sided lesions. Aspartate-to-
alanine aminotransferase and neutrophil-to-lymphocyte ratios were markedly higher in the patient group, when compared to controls.

Conclusion: Platelet-to-lymphocyte, neutrophil-to-lymphocyte, lymphocyte-to-monocyte, and aspartate-to-
alanine aminotransferase ratios are inexpensive, easy, fast, and reproducible parameters that can be used in determining the prediction of carotid artery stenosis.


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How to Cite

ALTINBAŞ, ÖZGÜR, Demiryürek, Şeniz, Işık, M., Tanyeli, Ömer, Dereli, Y., & Görmüş, N. (2021). Predictive Value of Neutrophil-to-Lymphocyte, Aspartate-to-Alanine Aminotransferase, Lymphocyte-to-Monocyte and Platelet-to-Lymphocyte Ratios in Severity and Side of Carotid Artery Stenosis: Are Those Significant?. The Heart Surgery Forum, 24(1), E072-E078.