scholarly journals C-REACTIVE PROTEIN/ALBUMIN RATIO AND NEUTROPHIL-LYMPHOCYTE RATIO AS PREDICTORS OF COVID-19 SEVERITY

2021 ◽  
Vol 9 (12) ◽  
pp. 374-378
Author(s):  
M.V. Madhav ◽  
◽  
Y. Sirisha ◽  
V. Anjaneya Prasad ◽  
◽  
...  

Coronavirus disease 2019 (COVID-19) was announced in early December 2019. By genome sequencing, the virus was recognised. From Wuhan City, the virus spread globally. The pandemic situation was declared by the World Health Organization.The first case of COVID-19 in Indiawas reported in Kerala on January 27, 2020.The clinical features varied with disease severity. Most COVID-19 patients have non-severe manifestations and show a good prognosis. However, patients with severe disease may progress to pulmonary dysfunction, multiple organ dysfunction, and death. COVID-19 related to a considerable mortality rate in older patients and cases had other morbidities. Studies suggested that the inflammatory storm is a common finding in other coronaviruses.Similarly, increases in the inflammatory markers like C-reactive protein (CRP),ferritin,interleukin-6 (IL-6) and were described in COVID-19 (1). Albumin levels decreased in the inflammatory conditions reduced levels were confirmed in severe COVID-19 patients. Hypoalbuminemia and high CRP/albumin ratio were previously linked to the mortality of various clinical conditions as critically ill patients.To avoid the unnecessary or inappropriate utilisation of the healthcare resources, early prediction of the severity of COVID-19 will be helpful. Severity prediction will also improve the prognosis by reducing the mortality rate.Thus, this study aimed to evaluate the role of inflammatory markers in estimating the severity and predicting the prognosis of COVID-19. This study hypothesised that elevated values of CRP/ albumin ratio and the neutrophil-lymphocyte ratio at the time of COVID-19 diagnosis are associated with COVID-19 severity and mortality.

2020 ◽  
Vol 2020 ◽  
pp. 1-8
Author(s):  
Yi-Han Chen ◽  
Li Wang ◽  
Shu-Yi Feng ◽  
Wei-Min Cai ◽  
Xiao-Fu Chen ◽  
...  

Objectives. The aims of this study were to evaluate the C-reactive protein/albumin ratio (CRP/ALB), inflammatory markers, and parameters from the complete blood count (CBC) in patients with inflammatory bowel disease (IBD) and their associations with disease activity. Methods. A total of 876 IBD patients, composed of 275 patients with ulcerative colitis (UC) and 601 patients with Crohn’s disease (CD), were included in this retrospective study, and the serum C-reactive protein (CRP), albumin (ALB), erythrocyte sedimentation rate (ESR), and CBC parameters were measured. To explore the disease activity, the Mayo score and Crohn disease activity index were used to assess UC and CD patients, respectively. Results. The CRP/ALB ratio, CRP, ESR, platelet to lymphocyte ratio (PLR), red blood cell distribution width (RDW), and neutrophil to lymphocyte ratio (NLR) levels in active IBD patients were significantly higher than those in inactive IBD patients, whereas ALB and lymphocyte to monocyte ratio (LMR) levels were significantly decreased (P<0.001). The receiver operating characteristic analysis showed that the optimum cut-off values of the CRP/ALB ratio for active UC and CD were 0.18 and 0.43, with sensitivities of 67.8% and 75.8% and specificities of 86.7% and 92.0%, respectively. Multivariable logistic analysis revealed that after adjusting for these inflammatory markers (ESR, NLR, PLR, and LMR), the CRP/ALB ratio was a statistically significant parameter capable of differentiating the disease activity of UC and CD. Conclusions. This study indicated that the CRP/ALB ratio was closely related to the IBD disease activity. Compared with CBC parameters, the CRP/ALB ratio had a higher discriminative capacity for active IBD.


2020 ◽  
Vol 79 (Suppl 1) ◽  
pp. 1137.1-1138
Author(s):  
Z. Zhong ◽  
Y. Huang ◽  
Q. Huang ◽  
T. LI

Background:C-reactive protein to albumin ratio (CAR) has emerged as a significant biomarker to evaluate and predict systemic inflammation[1]. However, the role of CAR in patients with axial spondyloarthritis (axSpA) remains unknown.Objectives:The aim of this study was to investigate the relationship between CAR and disease activity of axSpA.Methods:A total of 241 patients and 61 healthy controls from Guangdong Second Provincial General Hospital from December 2015 to August 2019 were retrospectively recruited in this study. Patients were divided into two groups, with 176 patients in remission group (BASDAI<4) and 65 patients in active group (BASDAI≥4). Erythrocyte sedimentation rate (ESR), C-reactive protein (CRP), albumin (ALB), CAR, neutrophil-lymphocyte ratio (NLR), platelet-lymphocyte ratio (PLR) and monocyte-lymphocyte ratio (MLR) were detected. The correlations between CAR, NLR, PLR, MLR and disease activity were analyzed by the Spearman’s correlations analysis. Receiver operation characteristic (ROC) curves were performed to evaluate the discriminative utility of these parameters for disease activity of axSpA. Furthermore, the evaluation of the risk factors of axSpA was conducted using binary logistic regression analysis.Results:CAR, ESR, CRP, NLR, PLR and MLR in axSpA patients were significantly higher than those in the control group (p<0.05 for each), while ALB was significantly lower (p<0.001). Similarly, CAR in remission group was higher than that in control group (p<0.001) and was lower than that in active group (p<0.001). Besides, there were significantly positive correlations between CAR and ESR (r=0.702, P<0.001), CRP (r=0.996, P<0.001), BASDAI (r=0.329, p<0.001) and BASFI (r=0.328, P<0.001). Furthermore, ROC suggested that the area under the curve (AUC) of CAR was 0.701, which was the highest. The optimal cutoff point of CAR was 0.3644, with sensitivity and specificity of 58.5% and 79.0%. Logistic analysis results revealed that elevated CAR and MLR were independent risk factors for axSpA (EXP (B) =15.546, 95%CI: 5.898-40.979, P<0.001; EXP (B) =2.206, 95%CI: 1.077-4.519, P=0.031, respectively).Conclusion:CAR was increased in axSpA patients especially in active group, and significantly correlated with disease activity. CAR may serve as a novel inflammatory marker of monitoring disease activity in patients with axSpA.References:[1]He, Y., et al., Correlation between albumin to fibrinogen ratio, C-reactive protein to albumin ratio and Th17 cells in patients with rheumatoid arthritis. Clin Chim Acta, 2020. 500: p. 149-154.Fig 1.ROC curve analysis of the discriminative values of the parameters for disease activity of axSpATable 1.Discriminative values of the parameters for disease activity of axSpAAUC95% CIOptimal cutoff pointSpecificitySensitivityCAR0.7010.623-0.7780.364479.0%58.5%NLR0.4500.365-0.5343.16584.1%18.5%PLR0.5280.448-0.608127.38542.6%69.2%MLR0.4680.384-0.5530.38592.6%16.9%ESR0.6850.612-0.75815.552.3%76.9%CRP0.6910.614-0.76910.8571.6%63.1%CAR, C-reactive protein to albumin ratio; NLR, neutrophil-lymphocyte ratio; PLR, platelet-lymphocyte ratio; MLR, monocyte-lymphocyte ratio; CRP, C reactive protein; ESR, erythrocyte sedimentation rate; AUC, areas under the ROC curveDisclosure of Interests:None declared


2020 ◽  
Vol 17 (9) ◽  
pp. 902-910
Author(s):  
Yasin Hasan Balcioglu ◽  
Simge Seren Kirlioglu

Objective Peripheral biomarker studies in schizophrenia are insufficient to correspond to whether inflammatory markers are trait- or state-related. The main objective of this study was to compare novel biomarkers C-reactive protein/albumin ratio (CAR), neutrophil/albumin ratio (NAR), and complete blood count-derived inflammatory markers; neutrophil/lymphocyte ratio (NLR), platelet/lymphocyte ratio (PLR), monocyte/lymphocyte ratio (MLR), red-cell distribution width (RDW), and mean platelet volume (MPV) between patients with acutely exacerbated and remitted schizophrenia and healthy controls.Methods Anonymous data of a total of 618 patients with schizophrenia (179 in remission, 439 with acute exacerbation) and 445 psychiatrically and medically healthy subjects admitted to outpatient units were included. One-way ANOVA with Tukey’s HSD post-hoc test, Pearson’s correlation test, receiver operating characteristic analysis, and binomial logistic regression analysis were performed.Results CAR, NAR, NLR, PLR, MLR, RDW, MPV values were found higher in patients with schizophrenia than in healthy subjects. Except for NAR (p=0.007), none of the markers differed between acute exacerbation and remission. As a cut-off value of CAR, 0.388 differentiated patients with schizophrenia from controls (sensitivity 81%, specificity 81%). CAR, NAR, and MPV significantly predicted the diagnosis of schizophrenia.Conclusion CAR and NAR are reliable biomarkers of inflammation and a combination of inflammatory markers including CAR and NAR could be used to reflect the increased inflammatory status in schizophrenia, regardless of relapse or remission.


2021 ◽  
Vol 16 (1) ◽  
pp. 84-91
Author(s):  
Bing Luo ◽  
Minjie Sun ◽  
Xingxing Huo ◽  
Yun Wang

Abstract Background The objective of this study was to investigate the relationship among hypersensitive C-reactive protein to albumin ratio (CAR), fibrinogen to albumin ratio (FAR), and the CURB-65 score for community-acquired pneumonia (CAP) severity. Methods Clinical data and laboratory indicators of 82 patients with CAP and 40 healthy subjects were retrospectively analysed. The relationship among CAR, FAR, and the severity of CAP was then analysed. Results CAR and FAR in patients with low-risk CAP were significantly higher than those in the normal control group (P < 0.05). CAR and FAR in patients with medium–high-risk CAP were further increased compared with those in patients with low-risk CAP (P < 0.05). CAR and FAR were positively correlated with hypersensitive C-reactive protein, neutrophil to lymphocyte ratio (NLR), platelet to lymphocyte ratio (PLR), and CURB-65 scores (P < 0.05). In the receiver operating characteristic curve for predicting severe CAP, the area under the curve of combining four biomarkers (CAR + FAR + NLR + PLR) was the largest. CAR was also an independent risk factor for severe CAP (OR = 8.789, 95% CI: 1.543–50.064, P = 0.014). Conclusions CAR and FAR may be used as the inflammatory markers for CAP severity evaluation.


2021 ◽  
pp. 1-9
Author(s):  
Murat Yildirim ◽  
Bulent Koca

BACKGROUND: Lymphocyte-to-C-reactive protein ratio (LCR) has been used as a post-surgical prognostic biomarker in patients with gastric and colorectal cancer. However, its relationship with early postoperative complications in these patients is unknown. In this study, we aimed to reveal the relationship between LCR and postoperative complications. METHODS: Eighty-one patients operated for stomach and colorectal cancer between January 2020 and August 2020 were prospectively analyzed. On preoperative and postoperative days 1, 3 and 5, other inflammatory parameters, mainly LCR, neutrophil lymphocyte ratio (NLR), were recorded. The patients were divided into two groups according to Clavien-Dindo classification as stage III and higher complications major, stage I-II/non-complication minor. RESULTS: Fifty seven patients were operated for colorectal cancer, 24 patients for gastric cancer. The mean age of the patients was 65.6 ± 12.6, 34.6% of them was women. Age, operation time and hospital stay were significantly different between the groups (p= 0.004, p= 0.002, p< 0.001). Major complications developed in 18 patients. On postoperative day 5, LCR found superior diagnostic accuracy in predicting major postoperative complications compared to other inflammatory markers. On the postoperative 5th day, the cut-off value of LCR was 0.0034, 88.8% (71.9–94.8) sensitivity, and 85.7% (73.6–95.4) selectivity. CONCLUSION: Among different inflammatory markers, postoperative LCR is a safe and effective predictor of postoperative complications, especially after gastric and colorectal cancer surgery on day 5.


2021 ◽  
Vol 21 (3) ◽  
pp. 159-164
Author(s):  
Tamara N. Shvedova ◽  
Olga S. Kopteva ◽  
Polina A. Kudar ◽  
Anna A. Lerner ◽  
Yuliya A. Desheva

BACKGROUND: Despite the continuing global spread of the coronavirus infection COVID-19 caused by the SARS-CoV-2 coronavirus, the mechanisms of the pathogenesis of severe infections remain poorly understood. The role of comorbidity with other seasonal viral infections, including influenza, in the pathogenesis of the severe course of COVID-19 remains unclear. MATERIALS AND METHODS: The present study used sera left over from ongoing laboratory studies of patients with varying degrees of severity of COVID-19. The study was approved by the Local Ethics Committee of the Federal State Budgetary Scientific Institution IEM (protocol 3/20 from 06/05/2020). We studied 28 paired samples obtained upon admission of patients to the hospital and after 57 days of hospital stay. Paired sera of patients with COVID-19 were tested for antibodies to influenza A and B viruses. The presence of IgG antibodies specific to the SARS-CoV-2 spike (S) protein was studied using an enzyme-linked immunosorbent assay (ELISA). The serum concentration of C-reactive protein and the neutrophil-lymphocyte ratio on the day of hospitalization were also assessed. RESULTS: At least a 4-fold increase in serum IgG antibodies to SARS-CoV-2 S protein was found both in patients with PCR-confirmed SARS-CoV-2 infection and without PCR confirmation. It was shown that out of 18 patients with moderate and severe forms of COVID-19 infection, six of them showed at least a 4-fold increase in antibodies to influenza A/H1N1, in one to influenza A/H3N2 and in two cases to the influenza B. Laboratory data in these two groups were characterized by significant increases in serum C-reactive protein and neutrophil-lymphocyte ratio concentrations compared with the moderate COVID-19 group. CONCLUSIONS: Serological diagnostics can additionally detect cases of coronavirus infection when the virus was not detected by PCR. In moderate and severe cases of COVID-19, coinfections with influenza A and B viruses have been identified. The results obtained confirm the need for anti-influenza immunization during the SARS-CoV-2 pandemic. Influenza virus screening can significantly improve patient management because recommended antiviral drugs (neuraminidase inhibitors) are available.


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