Prediction of Troponin elevation in Non- ST Acute Coronary Syndrome Patients presenting to The Emergency Department Using Neutrophil-lymphocyte ratio

QJM ◽  
2021 ◽  
Vol 114 (Supplement_1) ◽  
Author(s):  
Sarah Mohamed Mahmoud ◽  
Bassam Sobhy ◽  
Ramy Raymond

Abstract Background The neutrophil–lymphocyte ratio (NLR) is considered an independent predictor of mortality and myocardial infarction (MI) in stable coronary artery disease (SCAD). Also NLR have prognostic value in patients with acute coronary syndromes (ACSs). However the diagnostic power of NLR in patients suspected of ACS is still under study Objective is to determine the ability of neutrophil-lymphocyte ratio to predict troponin elevation in patients presenting to emergency department with acute coronary syndrome Material and Methods From June 2018 to March 2019, 100 patients were enrolled who presented to the ER with NST-ACS. Patients were divided into 2 groups based upon the troponin positivity in the 12- to 24-hour follow-up. Baseline Complete blood count with calculation of NLR is done Results The study population was divided into 2 groups: troponin- negative group (n = 50) and troponin-positive group (n = 50). Mean age was 55.8 ± 11.3. 77% of the patients were male. No significance difference in the level of hemoglobin, WBCs and platelets between the 2 groups. The neutrophil count was significantly higher in the troponin-positive group (p < 0.001). The median admission. NLR was significantly higher in the troponin-positive group (2 vs. 3.9, P < 0.001). A cutoff point of 3.4 for NLR measured on admission had 84% sensitivity and 84% specificity in predicting follow-up troponin positivity. A highly significant correlation was found between NLR and level of troponin change (p value <0.01) Conclusion NLR can be used as a diagnostic tool in the differentiation of patients with acute coronary syndrome. NLR is a non-expensive, simple and available parameter that can be used in diagnosis of NSTEMI.

2021 ◽  
Vol 10 (Supplement_1) ◽  
Author(s):  
AL Imani ◽  
BY Setianto ◽  
N Taufiq ◽  
HP Bagaswoto ◽  
A Damarkusuma

Abstract Funding Acknowledgements Type of funding sources: None. Background  Inflammation is the basic mechanism of acute coronary syndrome (ACS). Among the various inflammatory markers related to ACS is the neutrophil-lymphocyte ratio (NLR). Neutrophils act as a mediator of inflammatory response to acute damage of myocardium, while lymphocytes decrease because of apoptosis caused by inflammation. Therefore, high NLR suggests further risk of infarction of the myocardium. Purpose This study determines the cut-off value and the role of NLR at admission in predicting in-hospital mortality of ACS patients.  Methods  A retrospective cohort study was conducted using data of patients admitted with ACS from the SCIENCE registry between February 2019 and November 2020. The inclusion criterion was complete blood count measurement at presentation. NLR was calculated from the absolute neutrophil and lymphocyte count. The optimal cut-off value of NLR was determined using receiver operating characteristic (ROC) curve and Youden index (J) analysis. Patients was divided into two groups based on the NLR cut-off value. In-hospital mortality between the two groups was compared using Chi-square test with a risk estimate to obtain the relative risk. Results  A total of 1147 ACS patients aged 60,70 ± 10,951 years old were included in the study. Area under the ROC curve was 0,607 (95% CI: 0,559-0,655; p <0,001). The optimal cutoff value of NLR to predict mortality was 10,7566 (sensitivity: 39,8%, specificity: 79,5%, J: 0,193). In-hospital mortality occurred in 64 of 266 (24,1%) patients with NLR >10,7566 and in 97 of 881 (11%) patients with NLR <10,7566, with relative risk 2,185 (95% CI: 1,645-2,904; p <0,001). Conclusion  In ACS patients with NLR >10,7566, there is an increased mortality risk 2,185 times higher compared to ACS patients with NLR <10,7566. Therefore, NLR can be used to predict in-hospital mortality in ACS patients. Mortality incidence between NLR groupsNLR >10.7566 (n= 266)NLR <10.7566 (n= 881)P-valueRelative risk95% CIMortality64 (24.1%)97 (11%)<0.0012.1851.645-2.904Non-mortality202 (75.9%)784 (89%)NLR neutrophil-lymphocyte ratio, CI: confidence interval, P-value considered significant if <0.005Abstract Figure. ROC curve of NLR


Circulation ◽  
2015 ◽  
Vol 132 (suppl_3) ◽  
Author(s):  
Leslie L Davis ◽  
Thomas P McCoy ◽  
Barbara Riegel ◽  
Sharon McKinley ◽  
Lynn Doering ◽  
...  

Background: Prompt treatment of acute coronary syndrome (ACS) has been shown to reduce mortality and morbidity; yet many patients delay seeking care. In order to receive timely care, symptoms of ACS need to be recognized, interpreted, and acted upon. Patients who experience symptoms matching their expectations and those with correct symptom attribution are more likely to use emergency medical services (EMS) as a means of transportation to the hospital. The connection between symptom type and EMS use has not been fully explored. Purpose: To assess if clusters of presenting symptoms are associated with EMS transportation to the emergency department (ED) in patients with ACS and to evaluate if EMS transportation or symptom clusters are associated with prehospital delay time. Methods: A secondary analysis was conducted from the PROMOTION trial, a randomized controlled trial to reduce patient prehospital delay in ACS. Results: Of the 3,522 subjects with coronary artery disease enrolled, 3,087 completed 2-year follow-up. Of these, 331 subjects visited an ED for ACS symptoms during follow-up. Among the 331, 84% (278) had mode of transportation documented; 44% arrived by EMS. Having classic ACS symptoms (chest pain, pressure, or discomfort) in combination with pain symptoms (AOR=2.66, p = 0.011), classic ACS symptoms in combination with stress symptoms (AOR=2.61, p = 0.007) or classic ACS symptoms in combination with both pain and stress symptoms (AOR=3.90, p = 0.012) were associated with higher odds of arriving to the ED by EMS compared to classic ACS symptoms alone. Among 260 patients with prehospital delay time available, arriving by EMS decreased median delay time by 68.5 minutes compared to those with other transportation, after accounting for symptom clusters, patient and study characteristics (p = 0.002). Symptom clusters did not predict delay time in adjusted modeling (p = 0.952). Conclusion: While chest pain was the most prevalent symptom of ACS for most (85%), these findings suggest that it is the cluster of classic ACS symptoms with other types of symptom that motivate patients to use EMS. With less than half of patients using EMS, further research is needed to better understand how symptom clusters influence care-seeking behavior.


2018 ◽  
Vol 2 (1) ◽  
pp. 64-72
Author(s):  
Agus Riyadi ◽  
Karmiati Karmiati

Background: Coronary heart disease is the most cardiovascular disease that causes death in the world. The ability of nurses to recognize acute coronary syndromes is very necessary as part of the emergency services team. Purpose : The purpose of this study was to determine the description of the factors that influence the ability of nurses to know acute coronary syndrome in the emergency department of dr. Iskak Tulungagung. Methods : The design of this research is descriptive analytic with a cross sectional approach with the population of all nurses who work in the Emergency Department of dr. Iskak Tulungagung. The population is 55 nurses. The sample is all of the population, namely 55 respondents with total sampling sampling techniques. The data that has been collected is processed by a statistical test of Multivariate Analysis, Ordinal Regression with significance α = 0.05. Result : The results showed that most of the respondents with D3 education were 33 respondents (60.0%), almost all respondents had never attended ECG training in the amount of 50 respondents (90.9%) and almost half of the respondents had a working period of 2-5 year is 25 respondents (45.5%). The results of the regression regression analysis showed that the p-value = 0.855 on the education factor which means that H0 was accepted, the p-value = 0.041 in the training factor which means H1 is received, the p-value = 0.003 on the working period, which means that H1 is accepted Conclusion : Based on research, education does not affect the ability to recognize acute coronary syndrome. The education obtained will develop according to the increase in the work period and the frequent training that is obtained and practiced directly in real situations


2018 ◽  
Vol 39 (suppl_1) ◽  
Author(s):  
L Graca Santos ◽  
C Ruivo ◽  
F Montenegro Sa ◽  
R Ribeiro Carvalho ◽  
F Saraiva ◽  
...  

Author(s):  
RAJESH VENKATARAMAN ◽  
MUHAMMED RASHID ◽  
AKHILA G ◽  
SHIJO DANIEL ◽  
AMALATHOMAS

Objective: The objective of this study was to investigate whether psychotropic has any effect on neutrophils and lymphocyte ratio (NLR) in psychiatric patients. Methods: In this hospital-based prospective quasi-randomized follow-up study, we analyzed every 10 patients with newly diagnosed with depression, schizophrenia, and bipolar disorder for complete blood count before and after treatment with the selected psychotropic. Results: There was a significant increase in NLR of patients with depression after treatment with psychotropic (p=0.001), also in schizophrenia, there was a slight increase in NLR of patients after treatment with psychotropic (p=0.005), but in bipolar disorder, there was a significant decrease in NLR of patients after treatment with psychotropic (p=0.002). Conclusion: The present study confirmed that psychotropics have a statistically significant effect on the increase in NLR in patients with depression, a slight increase in patients with schizophrenia, and a decrease in patients with bipolar disorder. Further studies are needed for a better understanding of the mechanism of psychotropic drug effect on NLR.


2018 ◽  
pp. 103-106
Author(s):  
Tugba Atmaca Temrel ◽  
◽  
Gul Pamukcu Gunaydin ◽  
Servan Gokhan ◽  
Ayhan Ozhasenekler ◽  
...  

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