Is the Neutrophil/Lymphocyte Ratio a Marker of Mortality in ARDS Patients Followed in Pulmonary Intensive Care Unit?

Objective: In this study, we aimed to reveal the level of predicting mortality of the Neutrophil/Lymphocyte (NLR) and Platelet/Lymphocyte Ratios (TLR) calculated in patients hospitalized with the diagnosis of pneumonia in the intensive care unit when compared with other prognostic scores. Method: The hospital records of 112 patients who were admitted to the intensive care unit between January 2015 and January 2018 and met the inclusion criteria were retrospectively reviewed. The patients’ demographic data, the NLR and PLR levels, and the APACHE II (Acute Physiology and Chronic Health Evaluation II) and SOFA (Sequential Organ Failure Assessment) scores were calculated from the patient files. Results: Of the 112 patients examined, 70 were males. The risk analysis showed that the male gender had 2.7 times higher risk of mortality. The NLR, PLR, APACHE II, and SOFA values were found statistically significant in predicting mortality (p<0.001). An evaluation of the risk ratios demonstrated that each one point increase in the NLR increased the mortality risk by 5%, and each one point increase in the SOFA score increased the mortality risk by 13% (p<0.05). In the ROC (receiver operating characteristic) analysis, the NLR assessment proved to be the most powerful, most specific, and sensitive test. The cut-off values were 11.3 for the NLR, 227 for the PLR, 29.8 for the APACHE II scores, and 5.5 for the SOFA scores. Conclusion: We believe that NLR and PLR are strong and independent predictors of mortality that can be easily and cost-effectively tested.

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Neutrophil-lymphocyte ratio in the early diagnosis of sepsis in an intensive care unit: a case-control study

Revista Brasileira de Terapia Intensiva ◽

10.5935/0103-507x.20190010 ◽

2019 ◽

Vol 31 (1) ◽

Cited By ~ 10

Author(s):

Eduarda Cristina Martins ◽

Lilian da Fe Silveira ◽

Karin Viegas ◽

Andrea Diez Beck ◽

Geferson Fioravantti Júnior ◽

...

Keyword(s):

Intensive Care Unit ◽

Intensive Care ◽

Early Diagnosis ◽

Case Control Study ◽

Case Control ◽

Neutrophil Lymphocyte Ratio ◽

Lymphocyte Ratio ◽

Control Study

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Neutrophil-Lymphocyte Ratio as a Potential Biomarker for Delirium in the Intensive Care Unit

Frontiers in Psychiatry ◽

10.3389/fpsyt.2021.729421 ◽

2021 ◽

Vol 12 ◽

Author(s):

Chai Lee Seo ◽

Jin Young Park ◽

Jaesub Park ◽

Hesun Erin Kim ◽

Jaehwa Cho ◽

...

Keyword(s):

Intensive Care Unit ◽

Intensive Care ◽

Early Detection ◽

Inflammatory Markers ◽

Inflammatory Marker ◽

Neutrophil Lymphocyte Ratio ◽

Lymphocyte Ratio ◽

Icu Admission ◽

Potential Biomarker ◽

Significant Difference

Background: Recognition and early detection of delirium in the intensive care unit (ICU) is essential to improve ICU outcomes. To date, neutrophil-lymphocyte ratio (NLR), one of inflammatory markers, has been proposed as a potential biomarker for brain disorders related to neuroinflammation. This study aimed to investigate whether NLR could be utilized in early detection of delirium in the ICU.Methods: Of 10,144 patients who admitted to the ICU, 1,112 delirium patients (DE) were included in the current study. To compare among inflammatory markers, NLR, C-reactive protein (CRP), and white blood cell (WBC) counts were obtained: the mean NLR, CRP levels, and WBC counts between the initial day of ICU admission and the day of initial delirium onset within DE were examined. The inflammatory marker of 1,272 non-delirium patients (ND) were also comparatively measured as a supplement. Further comparisons included a subgroup analysis based on delirium subtypes (non-hypoactive vs. hypoactive) or admission types (elective vs. emergent).Results: The NLR and CRP levels in DE increased on the day of delirium onset compared to the initial admission day. ND also showed increased CRP levels on the sixth day (the closest day to average delirium onset day among DE) of ICU admission compared to baseline, while NLR in ND did not show significant difference over time. In further analyses, the CRP level of the non-hypoactive group was more increased than that of the hypoactive group during the delirium onset. NLR, however, was more significantly increased in patients with elective admission than in those with emergent admission.Conclusion: Elevation of NLR was more closely linked to the onset of delirium compared to other inflammatory markers, indicating that NLR may play a role in early detection of delirium.

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Correlation of Platelet-Lymphocyte Ratio (PLR) as 28-Days Sepsis Mortality Predictor in Intensive Care Unit of RSMH Palembang

Journal of Anesthesiology and Clinical Research ◽

10.37275/jacr.v1i2.137 ◽

2021 ◽

Vol 1 (2) ◽

pp. 43-62

Author(s):

Tiara Santi Rizal ◽

Fredi Heru Irwanto ◽

Rizal Zainal ◽

Mgs Irsan Saleh

Keyword(s):

Intensive Care Unit ◽

Intensive Care ◽

Inflammatory Response ◽

Sensitivity And Specificity ◽

Inflammatory Marker ◽

Sepsis Mortality ◽

Roc Curve Analysis ◽

Lymphocyte Ratio ◽

Morbidity Score ◽

Anti Inflammatory

Introduction. Inflammatory and anti-inflammatory response are important in pathophysiology and mortality of sepsis. Platelet as first line inflammatory marker was found increasing during early phase of infection. Decrease in lymphocyte was caused by disrupted balance between inflammatory and anti-inflammatory response. Platelet-to- lymphocyte ratio (PLR) is a cheap and accessible biomarker of sepsis mortality. This study aims to find the sensitivity and specificity of PLR as mortality predictor of sepsis in 28 days. Methods. This observational analytic study with retrospective cohort design was conducted to 91 sepsis patients in intensive care unit of Dr. Mohammad Hoesin Palembang Central Hospital between January and December 2019. Samples were secondarily collected from medical record during June-July 2020. Data was analyzed using chi-square test, cog regression test, and ROC curve analysis. Results. The result found 50 patients (54,9%) died in 28 days. Morbidity score (Charlson) was the only statistically significant mortality parameter (p=0,009). The study reported PLR cut-off point of >272,22. The sensitivity and specificity of PLR as 28-days sepsis mortality predictor are 84% and 80,49% respectively. Conclusion. PLR is alternatively reliable mortality predictor in sepsis patient, accounted to its relatively high sensitivity and specificity.

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The Predictive Role of Neutrophil to Lymphocyte Ratio and Platelet to Lymphocyte Ratio on Intensive Care Unit Admission and Mortality of COVID-19 Patients in Iran

10.21203/rs.3.rs-334097/v1 ◽

2021 ◽

Author(s):

Peiman Foroughi ◽

Mojtaba Varshochi ◽

Mehdi Hassanpour ◽

Meisam Amini ◽

Behnam Amini ◽

...

Keyword(s):

Intensive Care Unit ◽

Risk Factor ◽

Intensive Care ◽

Independent Risk Factor ◽

Multivariate Logistic Regression Analysis ◽

Neutrophil To Lymphocyte Ratio ◽

Platelet To Lymphocyte Ratio ◽

Lymphocyte Ratio ◽

Icu Admission ◽

Inflammatory Index

Abstract Since the outbreak of COVID-19 several studies conducted to identify predictive factors which are associated with prognosis of COVID-19. In this study we aimed to determine whether the neutrophil-to-lymphocyte ratio (NLR), platelet-to-lymphocyte ratio (PLR) could help the clinicians to predict intensive care unit (ICU) admission and mortality of COVID-19 patients. This retrospective cohort study involved examining the medical records of 311 Iranian COVID-19 patients from 22 July 2020 to 22 August 2020. All characteristic data and laboratory results were recorded. The receiver operating characteristic (ROC) curve was used to identify the predictive value of studied parameters for ICU admission and death. Comparison of data revealed that some factors were jointly higher in non-survivors and ICU admitted patients than survivors and non-ICU admitted patients, such as: age, hemoglobin (HB), NLR, derived neutrophil-to-lymphocyte ratio (dNLR), PLR, systemic inflammatory index (SII), lactate dehydrogenase (LDH), Respiratory diseases, ischemic heart disease (IHD). Multivariate logistic regression analysis showed that only hypertension (OR 3.18, P=0.02) is an independent risk factor of death in COVID-19 patients, and also PLR (OR 1.02, P=0.05), hypertension (OR 4.00, P=0.002) and IHD (OR 5.15, P=0.008) were independent risk factor of ICU admission in COVID-19 patients. This study revealed that the NLR, PLR, platelet-to-white blood Cell ratio (PWR), dNLR and SII are valuable factors for predicting ICU admission and mortality of COVID-19 patients.

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Platelet-Lymphocyte Ratio as a New Predictor of In-hospital Mortality in Cardiac Intensive Care Unit Patients

10.21203/rs.3.rs-763264/v1 ◽

2021 ◽

Author(s):

Guangyao Zhai ◽

Biyang Zhang ◽

Jianlong Wang ◽

Yuyang Liu ◽

Yujie Zhou

Keyword(s):

Intensive Care Unit ◽

Intensive Care ◽

Cardiovascular Diseases ◽

Hospital Mortality ◽

Subgroup Analysis ◽

Cardiac Intensive Care Unit ◽

Lymphocyte Ratio ◽

Platelet Lymphocyte Ratio ◽

Cardiac Intensive Care ◽

The Relationship

Abstract Background: It has been discovered that both inflammation and platelet aggregation could cause crucial effect on the occurrence and development of cardiovascular diseases. As a combination of platelet and lymphocyte, platelet-lymphocyte ratio (PLR) was proved to be correlated with the severity as well as prognosis of cardiovascular diseases. Exploring the relationship between PLR and in-hospital mortality in cardiac intensive care unit (CICU) patients was the purpose of this study. Method: PLR was calculated by dividing platelet count by lymphocyte count. All patients were grouped by PLR quartiles and the primary outcome was in-hospital mortality. The independent effect of PLR was determined by binary logistic regression analysis. The curve in line with overall trend was drawn by local weighted regression (Lowess). Subgroup analysis was used to determine the relationship between PLR and in-hospital mortality in different subgroups. Result: We included 5577 CICU patients. As PLR quartiles increased, in-hospital mortality increased significantly (Quartile 4 vs Quartile 1: 13.9 vs 8.3, P <0.001). After adjusting for confounding variables, PLR was proved to be independently associated with increased risk of in-hospital mortality (Quartile 4 vs Quartile 1: OR, 95% CI: 1.99, 1.46-2.71, P<0.001, P for trend <0.001). The Lowess curves showed a positive relationship between PLR and in-hospital mortality. The subgroup analysis revealed that patients with low Acute Physiology and Chronic Health Evaluation IV (APACHE IV) or with less comorbidities had higher risk of mortality for PLR. Further, PLR quartiles had positive relation with length of CICU stay (Quartile 4 vs Quartile 1: 2.7, 1.6-5.2 vs 2.1, 1.3-3.9, P<0.001), and the length of hospital stay (Quartile 4 vs Quartile 1: 7.9, 4.6-13.1 vs 5.8, 3.3-9.8, P<0.001). Conclusion: PLR was independently associated with in-hospital mortality in CICU patients.

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The Correlation of Platelet Lymphocyte Ratio (PLR) as 28 Days Sepsis Mortality Predictor in Intensive Care Unit RSMH Palembang

Journal of Anesthesiology and Clinical Research ◽

10.37275/jacr.v1i2.211 ◽

2020 ◽

Vol 1 (2) ◽

pp. 42-62

Author(s):

Tiara Shanty

Keyword(s):

Intensive Care Unit ◽

Intensive Care ◽

Inflammatory Response ◽

Sensitivity And Specificity ◽

Inflammatory Marker ◽

Sepsis Mortality ◽

Roc Curve Analysis ◽

Lymphocyte Ratio ◽

Morbidity Score ◽

Anti Inflammatory

Introduction. Inflammatory and anti-inflammatory response are important in pathophysiology and mortality of sepsis. Platelet as first line inflammatory marker was found increasing during early phase of infection. Decrease in lymphocyte was caused by disrupted balance between inflammatory and anti-inflammatory response. Platelet-to-lymphocyte ratio (PLR) is a cheap and accessible biomarker of sepsis mortality. This study aims to find the sensitivity and specificity of PLR as mortality predictor of sepsis in 28 days. Method. This observational analytic study with retrospective cohort design was conducted to 91 sepsis patients in intensive care unit of Dr. Mohammad Hoesin Palembang Central Hospital between January and December 2019. Samples were secondarily collected from medical record during June-July 2020. Data was analyzed using chi-square test, cog regression test, and ROC curve analysis. Results. The result found 50 patients (54,9%) died in 28 days. Morbidity score (Charlson) was the only statistically significant mortality parameter (p=0,009). The study reported PLR cut-off point of >272,22. The sensitivity and specificity of PLR as 28-days sepsis mortality predictor are 84% and 80,49% respectively. Conclusion. PLR is alternatively reliable mortality predictor in sepsis patient, accounted to its relatively high sensitivity and specificity.

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Platelet-lymphocyte ratio as a new predictor of in-hospital mortality in cardiac intensive care unit patients

Scientific Reports ◽

10.1038/s41598-021-02686-1 ◽

2021 ◽

Vol 11 (1) ◽

Author(s):

Guangyao Zhai ◽

Jianlong Wang ◽

Yuyang Liu ◽

Yujie Zhou

Keyword(s):

Intensive Care Unit ◽

Intensive Care ◽

Cardiovascular Diseases ◽

Hospital Mortality ◽

Subgroup Analysis ◽

Cardiac Intensive Care Unit ◽

Lymphocyte Ratio ◽

Platelet Lymphocyte Ratio ◽

Cardiac Intensive Care ◽

The Relationship

AbstractIt has been discovered that both inflammation and platelet aggregation could cause crucial effect on the occurrence and development of cardiovascular diseases. As a combination of platelet and lymphocyte, platelet-lymphocyte ratio (PLR) was proved to be correlated with the severity as well as prognosis of cardiovascular diseases. Exploring the relationship between PLR and in-hospital mortality in cardiac intensive care unit (CICU) patients was the purpose of this study. PLR was calculated by dividing platelet count by lymphocyte count. All patients were grouped by PLR quartiles and the primary outcome was in-hospital mortality. The independent effect of PLR was determined by binary logistic regression analysis. The curve in line with overall trend was drawn by local weighted regression (Lowess). Subgroup analysis was used to determine the relationship between PLR and in-hospital mortality in different subgroups. We included 5577 CICU patients. As PLR quartiles increased, in-hospital mortality increased significantly (Quartile 4 vs. Quartile 1: 13.9 vs. 8.3, P < 0.001). After adjusting for confounding variables, PLR was proved to be independently associated with increased risk of in-hospital mortality (Quartile 4 vs. Quartile 1: OR 95% CI 1.55, 1.08–2.21, P = 0.016, P for trend < 0.001). The Lowess curves showed a positive relationship between PLR and in-hospital mortality. The subgroup analysis revealed that patients with low Acute Physiology and Chronic Health Evaluation IV (APACHE IV) or with less comorbidities had higher risk of mortality for PLR. Further, PLR quartiles had positive relation with length of CICU stay (Quartile 4 vs. Quartile 1: 2.7, 1.6–5.2 vs. 2.1, 1.3–3.9, P < 0.001), and the length of hospital stay (Quartile 4 vs. Quartile 1: 7.9, 4.6–13.1 vs. 5.8, 3.3–9.8, P < 0.001). PLR was independently associated with in-hospital mortality in CICU patients.

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