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Neutrophil to lymphocyte ratio might help prediction of acute myocardial infarction in patients with elevated serum creatinine

BACKGROUND AND OBJECTIVE: Diagnostic performance of troponin assays is affected by renal insufficiency. Neutrophil to lymphocyte ratio(NLR) is an independent predictor of acute coronary syndrome. Our objective was to evaluate performance of NLR in diagnosing acute myocardial infarction (AMI) among p...

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Autores principales: Nalbant, Ahmet, Cinemre, Hakan, Kaya, Tezcan, Varim, Ceyhun, Varim, Perihan, Tamer, Ali
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Professional Medical Publications 2016
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4795847/
https://www.ncbi.nlm.nih.gov/pubmed/27022355
http://dx.doi.org/10.12669/pjms.321.8712
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author Nalbant, Ahmet
Cinemre, Hakan
Kaya, Tezcan
Varim, Ceyhun
Varim, Perihan
Tamer, Ali
author_facet Nalbant, Ahmet
Cinemre, Hakan
Kaya, Tezcan
Varim, Ceyhun
Varim, Perihan
Tamer, Ali
author_sort Nalbant, Ahmet
collection PubMed
description BACKGROUND AND OBJECTIVE: Diagnostic performance of troponin assays is affected by renal insufficiency. Neutrophil to lymphocyte ratio(NLR) is an independent predictor of acute coronary syndrome. Our objective was to evaluate performance of NLR in diagnosing acute myocardial infarction (AMI) among patients with elevated serum creatinine. METHODS: Patients with elevated creatinine levels evaluated for coronary artery disease were included (n=284). Patients were divided into two groups according to having AMI or non-specific chest pain. AMI diagnosis was made based on clinical and laboratory data, including serial EKG and cardiac enzymes, ECHO and coronary angiography. RESULTS: Troponin, neutrophil, and NLR were found to be higher in patients with AMI, compared to patients without AMI (P= 0.001, P= 0.001 and P=0.028, respectively). ROC curve analysis for NLR in diagnosing AMI was significant (AUC: 0.607; P=0.003). Sensitivity, specificity, LR +, LR-, PPV and NPV for NLR>7.4 were found as 42.3%, 74.7%, 1.68%, 0.77%, 77% and 40%, respectively. Logistic regression analysis revealed that patients whose NLR>7.4 were 2.18 times as likely to have AMI. CONCLUSIONS: NLR can be used as an independent predictor of AMI in patients with renal insufficiency. This seems to get more important in the era of high sensitivity troponin assays. Our results might also help in early diagnosis of AMI in this high risk population while serial cardiac enzyme results are pending.
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spelling pubmed-47958472016-03-28 Neutrophil to lymphocyte ratio might help prediction of acute myocardial infarction in patients with elevated serum creatinine Nalbant, Ahmet Cinemre, Hakan Kaya, Tezcan Varim, Ceyhun Varim, Perihan Tamer, Ali Pak J Med Sci Original Article BACKGROUND AND OBJECTIVE: Diagnostic performance of troponin assays is affected by renal insufficiency. Neutrophil to lymphocyte ratio(NLR) is an independent predictor of acute coronary syndrome. Our objective was to evaluate performance of NLR in diagnosing acute myocardial infarction (AMI) among patients with elevated serum creatinine. METHODS: Patients with elevated creatinine levels evaluated for coronary artery disease were included (n=284). Patients were divided into two groups according to having AMI or non-specific chest pain. AMI diagnosis was made based on clinical and laboratory data, including serial EKG and cardiac enzymes, ECHO and coronary angiography. RESULTS: Troponin, neutrophil, and NLR were found to be higher in patients with AMI, compared to patients without AMI (P= 0.001, P= 0.001 and P=0.028, respectively). ROC curve analysis for NLR in diagnosing AMI was significant (AUC: 0.607; P=0.003). Sensitivity, specificity, LR +, LR-, PPV and NPV for NLR>7.4 were found as 42.3%, 74.7%, 1.68%, 0.77%, 77% and 40%, respectively. Logistic regression analysis revealed that patients whose NLR>7.4 were 2.18 times as likely to have AMI. CONCLUSIONS: NLR can be used as an independent predictor of AMI in patients with renal insufficiency. This seems to get more important in the era of high sensitivity troponin assays. Our results might also help in early diagnosis of AMI in this high risk population while serial cardiac enzyme results are pending. Professional Medical Publications 2016 /pmc/articles/PMC4795847/ /pubmed/27022355 http://dx.doi.org/10.12669/pjms.321.8712 Text en Copyright: © Pakistan Journal of Medical Sciences http://creativecommons.org/licenses/by/3.0 This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/3.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Original Article
Nalbant, Ahmet
Cinemre, Hakan
Kaya, Tezcan
Varim, Ceyhun
Varim, Perihan
Tamer, Ali
Neutrophil to lymphocyte ratio might help prediction of acute myocardial infarction in patients with elevated serum creatinine
title Neutrophil to lymphocyte ratio might help prediction of acute myocardial infarction in patients with elevated serum creatinine
title_full Neutrophil to lymphocyte ratio might help prediction of acute myocardial infarction in patients with elevated serum creatinine
title_fullStr Neutrophil to lymphocyte ratio might help prediction of acute myocardial infarction in patients with elevated serum creatinine
title_full_unstemmed Neutrophil to lymphocyte ratio might help prediction of acute myocardial infarction in patients with elevated serum creatinine
title_short Neutrophil to lymphocyte ratio might help prediction of acute myocardial infarction in patients with elevated serum creatinine
title_sort neutrophil to lymphocyte ratio might help prediction of acute myocardial infarction in patients with elevated serum creatinine
topic Original Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4795847/
https://www.ncbi.nlm.nih.gov/pubmed/27022355
http://dx.doi.org/10.12669/pjms.321.8712
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