scholarly journals Assessment of the Relationship Between Red Cell Distribution Width and Brucellosis: A Case-Controlled Study

Author(s):  
Li Gou ◽  
Feng Gao ◽  
Siqin Lan ◽  
Hui Guo

Abstract Background: As a multisystem infectious disease, there is inflammation, which causes an increase in brucellosis. The red cell distribution width (RDW) has been identified as markers of inflammation. The present study aimed to investigate the predictive contribution value of RDW in the diagnosis of brucellosis.Methods: Medical records of 398 patients with brucellosis and 398 age-matched and gender-matched healthy controls in a single center from January 2017 to December 2019 were retrospectively reviewed.Results: The mean age of brucellosis patients was 47.1±12.9 years. The RDW levels were significantly higher in brucellosis group when compared to the control group (p < 0.001); The RDW levels were markedly lower in brucellosis male patients(14.32±2.15%)when compared to the brucellosis female patient(s 15.41±3.13%)(t= -9.56, p < 0.001). The biochemical markers of brucellosis patients included erythrocyte, hemoglobin, HCT, corpuscular volume, hemoglobin, hemoglobin concentration were all negatively correlated with RDW (r = −0.227, -0.383, -0.266, -0.253, -0.311 and -0.225, all p < 0.001). The values of hemoglobin (β coefficient = -0.084, p < 0.001), ESR (β coefficient = -0.020, p = 0.004) were significantly and independently correlated with RDW. Receiver operating characteristic (ROC) curve analysis showed that the best cutoff point for RDW in the diagnosis of brucellosis was 13.45%, which evaluated brucellosis with a sensitivity of 64.1% and a specificity of 83.9%. The area under the ROC curve for RDW was calculated as 0.80 (95% CI 0.769–0.831, P<0.001).Conclusion: This study revealed that the RDW in diagnosing brucellosis had a higher sensitivity and specificity. RDW values may be useful complementary indirect markers for the diagnosis of brucellosis.

2018 ◽  
Vol 2018 ◽  
pp. 1-7 ◽  
Author(s):  
Ewa Rusak ◽  
Anna Rotarska-Mizera ◽  
Piotr Adamczyk ◽  
Bogdan Mazur ◽  
Joanna Polanska ◽  
...  

Aim. The aim of the study was to assess markers of anemia in type 1 diabetes (T1D) children, compare them to results obtained in the control group, and estimate their relation to BMI SDS. Methods. 94 (59% ♀) T1D children without other autoimmune disorders, aged 12.5 ± 4.1 years, T1D duration: 4.2 ± 3.6 years, HbA1c 7.3 ± 1.5% (57 ± 12.6 mmol/mol). Sex- and age-matched controls (43 children). In all children, anthropometric measurements, the blood count, iron turnover parameters, and vitamin B12 concentration were taken. Results. T1DM children had significantly higher red cell distribution width (RDW) (13.6 versus 12.6%; p<0.001), hepcidin (0.25 versus 0.12 ng/ml; p<0.001), and vitamin B12 concentrations (459 versus 397 pg/ml; p<0.01) and lower TIBC (59.09 versus 68.15 μmol/l; p<0.001) than in the control group. Logistic regression revealed that RDW, TIBC (both p<0.001), and hepcidin (p<0.05) significantly differentiated both groups. In T1DM children, BMI SDS negatively correlated with vitamin B12 (p<0.01) concentration and mean corpuscular hemoglobin concentration (p<0.05) and positively with TIBC (p<0.01) and HbA1c (p<0.001). Conclusions. Patients and controls differed especially in terms of RDW and TIBC. In studied T1DM children, BMI SDS was associated to iron metabolism parameters and vitamin B12 concentration.


Circulation ◽  
2014 ◽  
Vol 130 (suppl_2) ◽  
Author(s):  
Benjamin D Horne ◽  
Joseph B Muhlestein ◽  
Sterling T Bennett ◽  
Jeffrey L Anderson

Background: The causal mechanism is unknown for why the red cell distribution width (RDW) predicts mortality and morbidity outcomes. One explanation is an inflammatory process: statistically significant, weak magnitude correlations (r<0.30) have been found between RDW and markers of inflammation. This study evaluated the association of RDW with mortality in patients with normal levels of inflammation, as indicated by normal high-sensitivity C-reactive protein (hsCRP) and white blood cell count (WBC). Methods: Intermountain Heart Collaborative Study patients undergoing coronary angiography (N=650) from 1994-2000 were evaluated if they never smoked, were free of acute myocardial infarction (MI), and had baseline hsCRP≤3 mg/L, WBC>4 K/μL, and WBC≤10.6 K/μL. RDW and WBC were tested clinically at index hospitalization via the complete blood count; hsCRP testing used stored research samples. Subjects were followed until December, 2013, and all-cause mortality was determined from hospital records, Utah death certificates, and US Social Security data. Results: Age averaged 66.7±11.6 years, 31.1% were female, and 62.9% died during a mean follow-up of 15.2±1.6 years (range:12.6-19.6 years). Continuous RDW predicted mortality after adjustment for demographics, risk factors, comorbidities, and baseline treatments (hazard ratio [HR]=1.15 per +1%, 95% CI=1.06, 1.26; p=0.002). In quartiles, this was significant for Q4 vs. Q1 (survival 23.6% vs. 43.4%, HR=1.56, CI=1.17, 2.08; p=0.003), but not Q2 (HR=1.18, p=0.29) or Q3 (HR=1.08, p=0.60) vs.Q1. In subjects with hsCRP<1 mg/L (n=259), RDW (adj. HR=1.13 per +1%, CI=0.99, 1.29, p=0.08) and RDW quartiles [Q2: adj. HR=1.70 (p=0.036), Q3: HR=1.88 (p=0.020), Q4: HR=1.97 (p=0.013) vs. Q1] predicted mortality. Among subjects free from heart failure (LVEF≥40%), diabetes, prior or current coronary disease, prior MI, stroke, renal failure, COPD, and depression (n=66), RDW had adjusted HR=1.70 per +1% (CI=1.06, 2.75; p=0.029). Conclusions: RDW predicted mortality in patients with normal hsCRP and WBC. This suggests that RDW marks the risk of a breadth of health concerns, likely including but not limited to inflammation. Further investigation is required to explain the causes of RDW elevation.


2019 ◽  
Vol 2019 ◽  
pp. 1-7
Author(s):  
Jiahao Huang ◽  
Yang Zhao ◽  
Lin Liao ◽  
Shun Liu ◽  
Shaolong Lu ◽  
...  

Background and Aim. Colorectal cancer (CRC) is the third most lethal cancer globally. This study sought to determine the feasibility of using red cell distribution width-to-lymphocyte ratio (RLR) as a tool to facilitate CRC detection. Methods. Seventy-eight healthy controls, 162 patients diagnosed with CRC, and 94 patients with colorectal polyps (CP) from June 2017 to October 2018 were retrospectively reviewed. Clinical data were obtained to analyze preoperative RLR level, and receiver operating characteristic (ROC) curve analysis was performed to estimate the potential role of RLR as a CRC biomarker. Results. RLR was higher in patients with CRC than in healthy participants (P < 0.05). ROC analysis indicated that combined detection of RLR and CEA appears to be a more effective marker to distinguish among controls, CP, and CRC patients, yielding 56% sensitivity and 90% specificity. RLR levels were significantly greater in those who had more advanced TNM stages (P < 0.05) and patients with distant metastasis stages (P < 0.05). Conclusions. RLR might serve as a potential biomarker for CRC diagnosis.


2014 ◽  
Vol 2014 ◽  
pp. 1-6 ◽  
Author(s):  
Vural Polat ◽  
Sahin Iscan ◽  
Mustafa Etli ◽  
Helin El Kılıc ◽  
Özgür Gürsu ◽  
...  

Background. Red cell distribution width (RDW) is an important marker which reflects inflammatory activity in many chronic diseases. The objective of this study is to investigate the impact of RDW on morbidity and mortality before and after pediatric congenital heart surgery.Methods. 107 patients with congenital heart disease, cardiac case group, and 70 patients, control group, without heart disease were retrospectively analyzed. Pre-, and postoperative and at discharge RDW of the cardiac patients were determined. Lengths of hospital and intensive care unit (ICU) stay and exited patients were determined.Results. Mean lengths of ICU and hospital stay were3.3±2.7and7.3±2.9days. In control group, mean preoperative RDW was12.6±1.4, while in cardiac case group it was significantly higher (15.1±3.5). In cardiac case group, postoperative RDW were significantly higher than preoperative period, while RDW at discharge were significantly lower than postoperative estimates. A significant and a positive correlation was detected between lengths of ICU and hospital stay and RDW. RDW of the exited patients were significantly higher than the survivors.Conclusions. This study demonstrates that RDW can be used as an important indicator in the prediction of morbidity and mortality during pre-, and postoperative period of the pediatric congenital heart disease surgery.


2021 ◽  
Vol 8 (10) ◽  
pp. 1647
Author(s):  
Saran Sarma ◽  
Madhu George ◽  
Abdul Tawab ◽  
Ann Mary Zacharias

Background: We evaluated the usefulness of RDW (red cell distribution width) as a diagnostic tool in newborn sepsis. Several biomarkers for sepsis have been studied including CRP (C-reactive protein), procalcitonin, interleukins, total WBC count (TC) absolute neutrophil count (ANC), ratio of immature neutrophils to total neutrophils (I/T ratio). An ideal biomarker for sepsis is still elusive. Hence we evaluated RDW as a sepsis marker as it was cheap and available. The objective of the study was to evaluate the role of RDW as a prognostic marker in newborn sepsis compared to healthy newborns.Methods: The study sample comprised of two groups (cases and control group) each with 40 neonates. Group 1 (cases group) comprised 40 newborns with suspected/probable sepsis based on clinical or laboratory parameters. In group 1 (suspected/probable sepsis) RDW was done at the time of suspicion of sepsis along with other relevant investigations. According to the clinical course these parameters were repeated 24-48 hrs after first value. Group 2 (control group) comprised 40 normal newborns in the postnatal ward. For the control group blood sampling for CBC and RDW was done simultaneously along with blood sampling for newborn screening.Results: On comparing the baseline variables there is no significant difference among cases and control group with respect to gender distribution, age in days, gestational age in weeks and birth weight. The mean RDW among the cases group was significantly higher than among the control group. In ROC analysis we obtained a cut off value of RDW of 17.25 is helpful to diagnose sepsis with reasonable sensitivity (70%) and specificity (60%).Conclusions: This study revealed that RDW may also be included in the diagnosis of sepsis in newborns as it is a simple, inexpensive, available and easily repeated test as it is routinely done with a complete blood count. 


2020 ◽  
Author(s):  
Dan Wang ◽  
Xiaona Fan ◽  
Lin Fang ◽  
Tianshuo Zhou ◽  
Qingwei Li ◽  
...  

Abstract Objective: To explore the value of mean corpuscular hemoglobin concentration (MCHC) and red cell distribution width (RDW) for overall survival (OS) and progression-free survival (PFS) in patients with pancreatic cancer (PC) who underwent radical pancreatomy.Background: Inflammatory factors are important factors in promoting the occurrence and metastasis of malignant tumors. RDW and MCHC are suggested to be relevant to the prognosis of several malignancies. Such as gastric cancer, colon cancer. However, there are few studies to explore the correlation between them and PC.Methods: This study included 532 patients with PC who underwent radical resection between March 2011 and May 2019. Kaplan-Meier curve method and Cox proportional hazard regression model were applied to analyze prognosis. Correlations between categorical variables were analyzed using Chi squared tests.Results: Survival curve showed that OS and PFS were significantly favorable for resectable PC patients with high preoperative MCHC (P=0.02) (P=0.005), RDW in the normal range (P<0.001) (P<0.001). Multivariate analysis suggested that MCHC (HR: 0.612, 95%CI: 0.426-0.879, P=0.008), and RDW (HR: 3.969, 95%CI: 2.952-5.338, P<0.001) were independent prognostic factors for resectable PC patients. MCHC (HR: 0.657, 95%CI: 0.458-0.943, P=0.023), RDW (HR: 3.915, 95%CI: 2.923-5.243, P < 0.001) were also independent recurrent factors for resectable PC patients. Correlation analysis showed that MCHC was related to tumor size, nerve invasion, and anemia-related indicators, meanwhile RDW was connected with carcinoma-embryonic antigen (CEA) and carbohydrate antigen199 (CA19-9).Conclusion: The preoperative MCHC and RDW were simple and convenient predictive factors for prognosis and progression of patients with PC.


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