Predictive value of red blood cell distribution width and hematocrit for short-term outcomes and prognosis in colorectal cancer patients undergoing radical surgery

BACKGROUND Previous studies have reported that low hematocrit levels indicate poor survival in patients with ovarian cancer and cervical cancer,the prognostic value of hematocrit for colorectal cancer(CRC)patients has not been determined.The prognostic value of red blood cell distribution width(RDW)for CRC patients was controversial.AIM To investigate the impact of RDW and hematocrit on the short-term outcomes and long-term prognosis of CRC patients who underwent radical surgery.METHODS Patients who were diagnosed with CRC and underwent radical CRC resection between January 2011 and January 2020 at a single clinical center were included.The short-term outcomes,overall survival(OS)and disease-free survival(DFS)were compared among the different groups.Cox analysis was also conducted to identify independent risk factors for OS and DFS.RESULTS There were 4258 CRC patients who underwent radical surgery included in our study.A total of 1573 patients were in the lower RDW group and 2685 patients were in the higher RDW group.There were 2166 and 2092 patients in the higher hematocrit group and lower hematocrit group,respectively.Patients in the higher RDW group had more intraoperative blood loss(P<0.01)and more overall complications(P<0.01)than did those in the lower RDW group.Similarly,patients in the lower hematocrit group had more intraoperative blood loss(P=0.012),longer hospital stay(P=0.016)and overall complications(P<0.01)than did those in the higher hematocrit group.The higher RDW group had a worse OS and DFS than did the lower RDW group for tumor node metastasis(TNM)stage I(OS,P<0.05;DFS,P=0.001)and stage II(OS,P=0.004;DFS,P=0.01)than the lower RDW group;the lower hematocrit group had worse OS and DFS for TNM stage II(OS,P<0.05;DFS,P=0.001)and stage III(OS,P=0.001;DFS,P=0.001)than did the higher hematocrit group.Preoperative hematocrit was an independent risk factor for OS[P=0.017,hazard ratio(HR)=1.256,95%confidence interval(CI):1.041-1.515]and DFS(P=0.035,HR=1.194,95%CI:1.013-1.408).CONCLUSION A higher preoperative RDW and lower hematocrit were associated with more postoperative complications.However,only hematocrit was an independent risk factor for OS and DFS in CRC patients who underwent radical surgery,while RDW was not.

Application of neutrophil-lymphocyte ratio and red blood cell distribution width in diabetes mellitus complicated with heart failure

BACKGROUND Accumulating clinical evidence has shown that diabetes mellitus(DM)is a serious risk factor for cardiovascular disorders and an important factor for adverse cardiovascular events.AIM To explore the value of the combined determination of the neutrophil-lymphocyte ratio(NLR)and red blood cell distribution width(RDW)in the early diagnosis and prognosis evaluation of DM complicated with heart failure(HF).METHODS We retrospectively analyzed clinical data on 65 patients with type 2 DM(T2DM)complicated with HF(research group,Res)and 60 concurrent patients with uncomplicated T2DM(control group,Con)diagnosed at Zhejiang Provincial People’s Hospital between January 2019 and December 2021.The NLR and RDW values were determined and comparatively analyzed,and their levels in T2DM+HF patients with different cardiac function grades were recorded.The receiver operating characteristic(ROC)curves were plotted to determine the NLR and RDW values(alone and in combination)for the early diagnosis of HF.The correlation between NLR and RDW with the presence or absence of cardiac events was also investigated.RESULTS Higher NLR and RDW levels were identified in the Res vs the Con groups(P<0.05).The NLR and RDW increased gradually and synchronously with the deterioration of cardiac function in the Res group,with marked differences in their levels among patients with grade II,III,and IV HF(P<0.05).ROC curve analysis revealed that NLR combined with RDW detection had an area under the curve of 0.915,a sensitivity of 76.9%,and a specificity of 100%for the early diagnosis of HF.Furthermore,HF patients with cardiac events showed higher NLR and RDW values compared with HF patients without cardiac events.CONCLUSION NLR and RDW were useful laboratory indicators for the early diagnosis of DM complicated with HF,and their joint detection was beneficial for improving diagnostic efficiency.Additionally,NLR and RDW values were directly proportional to patient outcomes.

Red cell distribution width/platelet ratio estimates the 3-year risk of decompensation in Metabolic Dysfunction-Associated Steatotic Liver Disease-induced cirrhosis

BACKGROUND For compensated advanced chronic liver disease(cACLD)patients,the first decompensation represents a dramatically worsening prognostic event.Based on the first decompensation event(DE),the transition to decompensated advanced chronic liver disease(dACLD)can occur through two modalities referred to as acute decompensation(AD)and non-AD(NAD),respectively.Clinically Significant Portal Hypertension(CSPH)is considered the strongest predictor of decompensation in these patients.However,due to its invasiveness and costs,CSPH is almost never evaluated in clinical practice.Therefore,recognizing noninvasively predicting tools still have more appeal across healthcare systems.The red cell distribution width to platelet ratio(RPR)has been reported to be an indicator of hepatic fibrosis in Metabolic Dysfunction-Associated Steatotic Liver Disease(MASLD).However,its predictive role for the decompensation has never been explored.AIM In this observational study,we investigated the clinical usage of RPR in predicting DEs in MASLD-related cACLD patients.METHODS Fourty controls and 150 MASLD-cACLD patients were consecutively enrolled and followed up(FUP)semiannually for 3 years.At baseline,biochemical,clinical,and Liver Stiffness Measurement(LSM),Child-Pugh(CP),Model for End-Stage Liver Disease(MELD),aspartate aminotransferase/platelet count ratio index(APRI),Fibrosis-4(FIB-4),Albumin-Bilirubin(ALBI),ALBI-FIB-4,and RPR were collected.During FUP,DEs(timing and modaities)were recorded.CSPH was assessed at the baseline and on DE occurrence according to the available Clinical Practice Guidelines.RESULTS Of 150 MASLD-related cACLD patients,43(28.6%)progressed to dACLD at a median time of 28.9 months(29 NAD and 14 AD).Baseline RPR values were significantly higher in cACLD in comparison to controls,as well as MELD,CP,APRI,FIB-4,ALBI,ALBI-FIB-4,and LSM in dACLD-progressing compared to cACLD individuals[all P<0.0001,except for FIB-4(P:0.007)and ALBI(P:0.011)].Receiving operator curve analysis revealed RPR>0.472 and>0.894 as the best cut-offs in the prediction respectively of 3-year first DE,as well as its superiority compared to the other non-invasive tools examined.RPR(P:0.02)and the presence of baseline-CSPH(P:0.04)were significantly and independently associated with the DE.Patients presenting baseline-CSPH and RPR>0.472 showed higher risk of decompensation(P:0.0023).CONCLUSION Altogether these findings suggest the RPR as a valid and potentially applicable non-invasive tool in the prediction of timing and modalities of decompensation in MASLD-related cACLD patients.

The Prognostic Value of Red Cell Distribution Width in Critically Ill Cerebral Infarction Patients:A Retrospective Cohort Study

Objective:Red blood cell distribution width(RDW)has been utilized as a prognostic indicator for mortality risk assessment in cardiovascular and cerebrovascular patients.Nevertheless,the prognostic significance of RDW in critically ill patients with cerebral infarction is yet to be investigated.The objective of this study is to examine the association between RDW and the risk of all-cause mortality in cerebral infarction patients admitted to the intensive care unit(ICU).Method:A retrospective cohort study was conducted using the Medical Information Mart for Intensive Care IV 2.2(MIMIC-IV)intensive care dataset for data analysis.The main results were the all-cause mortality rates at 3 and 12 months of follow-up.Cumulative curves were plotted using the Kaplan-Meier method,and Cox proportional hazards analysis was used to examine the relationship between RDW and mortality rates in critically ill cerebral infarction patients.Results:The findings indicate that RDW serves as a significant prognostic factor for mortality risk in critically ill stroke patients,specifically at the 3 and 12-month follow-up periods.The observed correlation between increasing RDW levels and higher mortality rates among cerebral infarction patients further supports the potential utility of RDW as a predictive indicator.Conclusion:RDW emerges as an independent predictor of mortality risk during the 3 and 12-month follow-up periods for critically ill patients with cerebral infarction.

Value of red blood cell distribution width in prediction of diastolic dysfunction in cirrhotic cardiomyopathy

BACKGROUND Clinical diagnosis of cirrhotic cardiomyopathy(CCM) often encounters challenges of lack of timeliness and disease severity, with the commonly positive indicator usually associated with advanced heart failure.AIM To explore suitable biomarkers for early CCM prediction.METHODS A total of 505 eligible patients were enrolled in this study and divided into four groups according to Child-Pugh classification: Group Ⅰ, Class A without CCM(105 cases);Group Ⅱ, Class A with CCM(175 cases);Group Ⅲ, Class B with CCM(139 cases);and Group Ⅳ, Class C with CCM(86 cases). Logistic regression and receiver operating characteristic(ROC) curve analyses were performed to determine whether red blood cell distribution width(RDW) was an independent risk factor for CCM risk. The relationships between RDW and Child-Pugh scores, Model for End-Stage Liver Disease(MELD) scores, and N-terminal pro-brain natriuretic peptide(NT-proBNP) were analyzed by Pearson correlation analysis.RESULTS A constant RDW increase was evident from Group Ⅰ to Group Ⅳ(12.54 ± 0.85, 13.29 ± 1.19, 14.30 ± 1.96, and 16.25 ± 2.13, respectively). Pearson correlation analysis showed that RDW was positively correlated with Child-Pugh scores(r = 0.642, P < 0.001), MELD scores(r = 0.592, P < 0.001), and NT-proBNP(r = 0.715, P < 0.001). Furthermore, between Group Ⅰ and Group Ⅱ, RDW was the only significant index(odds ratio: 2.175, 95% confidence interval [CI]: 1.549-3.054, P < 0.001), and it reached statistical significance when examined by ROC curve analysis(area under the curve: 0.686, 95%CI: 0.624-0.748, P < 0.001).CONCLUSION RDW can serve as an effective and accessible clinical indicator for the prediction of diastolic dysfunction in CCM, in which a numerical value of more than 13.05% may indicate an increasing CCM risk.

Prognostic value of red blood cell distribution width for severe acute pancreatitis

BACKGROUND Severe acute pancreatitis(SAP)is a common condition in the intensive care unit(ICU)and has a high mortality.Early evaluation of the severity and prognosis is very important for SAP therapy.Recently,red blood cell distribution(RDW)was associated with mortality of sepsis patients and could be used as a predictor of prognosis.Similarly,RDW may be associated with the prognosis of SAP patients and be used as a prognostic indicator for SAP patients.AIM To investigate the prognostic value of RDW for SAP patients.METHODS We retrospectively enrolled SAP patients admitted to the ICU of the First Affiliated Hospital of China Medical University from June 2015 to June 2017.According to the prognosis at 90 d,SAP patients were divided into a survival group and a non-survival group.RDW was extracted from a routine blood test.Demographic parameters and RDW were recorded and compared between the two groups.The receiver operator characteristic(ROC)curve was constructed and Cox regression analysis was performed to investigate the prognostic value of RDW for SAP patients.RESULTS In this retrospective cohort study,42 SAP patients were enrolled,of whom 22 survived(survival group)and 20 died(non-survival group).The baseline parameters were comparable between the two groups.The coefficient of variation of RDW(RDW-CV),standard deviation of RDW(RDW-SD),Acute Physiology and Chronic Health Evaluation II(APACHE II)score,and Sequential Organ Failure Assessment(SOFA)score were significantly higher in the non-survival group than in the survival group(P<0.05).The RDW-CV and RDW-SD were significantly correlated with the APACHE II score and SOFA score,respectively.The areas under the ROC curves(AUCs)of RDW-CV and RDW-SD were all greater than those of the APACHE II score and SOFA score,among which,the AUC of RDW-SD was the greatest.The results demonstrated that RDW had better prognostic value for predicting the mortality of SAP patients.When the RDW-SD was greater than 45.5,the sensitivity for predicting prognosis was 77.8%and the specificity was 70.8%.Both RDW-CV and RDW-SD could be used as independent risk factors to predict the mortality of SAP patients in multivariate logistic regression analysis and univariate Cox proportional hazards regression analysis,similar to the APACHE II and SOFA scores.CONCLUSION The RDW is greater in the non-surviving SAP patients than in the surviving patients.RDW is significantly correlated with the APACHE II and SOFA scores.RDW has better prognostic value for SAP patients than the APACHE II and SOFA scores and could easily be used by clinicians for the treatment of SAP patients.

Prognostic significance of red blood cell distribution width in gastrointestinal disorders

The red blood cell distribution width(RDW) is a routinely measured and automatically reported blood parameter,which reflects the degree of anisocytosis. Recently,the baseline RDW was found to have clinical significance for assessing clinical outcome and severity of various pathological conditions including cardiovascular diseases,sepsis,cancers,leukemia,renal dysfunction and respiratory diseases. A myriad of factors,most of which ill-defined,have an impact on the red cell population dynamics(i.e.,production,maturation and turnover). A delay in the red blood cell clearance in pathological conditions represents one of the leading determinants of increased anisocytosis. Further study of RDW may reveal new insight into inflammation mechanisms. In this review,we specifically discuss the current literature about the association of RDW in various disease conditions involving the gastrointestinal and hepatobiliary systems. We also present some of the related measurements for their value in predicting clinical outcomes in such conditions. According to our data,RDW was found to be a valuable prognostic index in gastrointestinal disorders along with additional inflammatory biomarkers(i.e.,C reactive protein,erythrocyte sedimentation rate,and platelet count) and current disease severity indices used in clinical practice.

Red blood cell distribution width: A marker of anisocytosis potentially associated with atrial fibrillation

The incorporation of biomarkers in the actually used risk scores seem to be helpful for early identifying atrial fibrillation(AF)patients at higher risk.The aim of this critical review of the scientific literature is to investigate the potential clinical significance of red blood cell distribution width(RDW)in AF.A systematic electronic search was carried out to identify all articles describing an epidemiological association between RDW and AF in adult human populations.Data abstraction was conducted on a final number of 35 articles(13 crosssectional,12 prospective and 10 retrospective studies).The results of these epidemiological investigations were all virtually concordant to emphasize that an enhanced RDW value is not only a predictive factor and a marker of AF but its measurement may also be helpful for predicting the risk of developing many adverse complications in patients with AF,such as recurrence and duration of AF,hospitalization for heart failure,bleeding,left atrial thrombosis and stasis,thromboembolic events and mortality.AF patients with RDW values exceeding the local reference range may be more aggressively investigated and managed,in order to identify and attenuate the impact of possible underlying disorders causing both anisocytosis and AF.

Research progress of red blood cell distribution width in diagnosis and treatment of lung diseases and prognosis

Lung disease is the disease of the lung itself or lung manifestations of other diseases,including COPD,PTE,CAP,etc.In recent years,the incidence rate has been increased year after year.Many of these diseases have hidden onset and complicated causes.Therefore,accurate diagnosis and treatment are very important.Studies have shown that RDW is closely linked to the diagnosis and treatment of lung diseases.This article analyzes the research on RDW and lung diseases at home and abroad,and briefly summarizes the diagnosis,severity and clinical prognosis of lung diseases by RDW,hoping to provide useful clues and reliable basis for clinical workers,to provide assistance for further application research of RDW in lung diseases.

Association between red blood cell distribution width and the occurrence of cervical carcinoma

Objective:To explore correlation between red blood cell distribution width(RDW)and cervical carcinoma.Methods:50 cervical carcinoma patients and 75 healthy controls from the First Affiliated Hospital of Soochow University from June 2020 to December 2020 were involved as the patients group and the control group respectively.Demographic data were collected from routine blood tests and biochemistry examination,the correlation of RDW with hemoglobin(Hb)and c-reactive protein(CRP)was evaluated by Spearman rank correlation,and receiver operating characteristic(ROC)curve was drawn to analyze the diagnostic value of RDW for cervical carcinoma.Result:The levels of RDW,squamous cell carcinoma antigen(SCCA)and carcinoembryonic antigen(CEA)in patients with cervical carcinoma were higher than those in the controls.The levels of high-density lipoprotein(HDL),Albumin,Prealbumin,Hb,RBC and neuron-specific enolase(NSE)in patients were lower than those in the controls(all P<0.05).There was no statistical significance on the difference in other markers between the two groups(P>0.05).The AUC of RDW in the diagnosis of cervical carcinoma was 0.834.Based on Spearman's rank correlation coefficient analysis,RDW was positively correlated with Hb(r=0.434,P<0.05)and CRP(r=0.366,P<0.05)RDW,and was negatively correlated with hematocrit(r=-0.363,P<0.05),in cervical carcinoma group,cervical carcinoma subgroupⅠ-ⅡandⅢ-Ⅳwere higher than the control group(P<0.05).Conclusions:Elevated RDW is associated with the occurrence of cervical carcinoma,and it may have clinical value in the diagnosis of cervical carcinoma and the course of reaction.

Differences in the predictive value of red cell distribution width for the mortality of patients with heart failure due to various heart diseases

Background Increased red blood cell distribution width （RDW） is associated with adverse outcomes in patients with heart failure （HF）. The objective of this study was to compare the differences in the predictive value of RDW in patients with HF due to different causes. Methods We retrospectively investigated 1,021 HF patients from October 2009 to December 2011 at Fuwai Hospital （Beijing, China）. HF in these patients was caused by three diseases; coronary heart disease （CHD）, dilated cardiomyopathy （DCM） and valvular heart disease （VHD）. Patients were followed-up for 21 ~ 9 months. Results The RDW, mortality and survival duration were significantly different among the three groups. Kaplan-Meier analysis showed that the cumulative survival decreased significantly with increased RDW in patients with HF caused by CHD and DCM, but not in those with HF patients caused by VHD. In a multivariable model, RDW was identified as an independent predictor for the mortality of HF patients with CHD （P 〈 0.001, HR 1.315, 95% CI 1.122-1.543）. The group with higher N-terminal pro-brain natriuretic peptide （NT-proBNP） and higher RDW than median had the lowest cumulative survival in patients with HF due to CHD, but not in patients with HF due to DCM. Conclusions RDW is a prognostic indicator for patients with HF caused by CHD and DCM; thus, RDW adds important information to NT-proBNP in CHD caused HF patients.

Red blood cell distribution width in heart failure: A narrative review

The red blood cell distribution width(RDW) is a simple, rapid, inexpensive and straightforward hematological parameter, reflecting the degree of anisocytosis in vivo. The currently available scientific evidence suggests that RDW assessment not only predicts the risk of adverse outcomes(cardiovascular and all-cause mortality, hospitalization for acute decompensation or worsened left ventricular function) in patients with acute and chronic heart failure(HF), but is also a significant and independent predictor of developing HF in patients free of this condition. Regarding the biological interplay between impaired hematopoiesis and cardiac dysfunction, many of the different conditions associated with increased heterogeneity of erythrocyte volume(i.e., ageing, inflammation, oxidative stress, nutritional deficiencies and impaired renal function), may be concomitantly present in patients with HF, whilst anisocytosis may also directly contribute to the development and worsening of HF. In conclusion, the longitudinal assessment of RDW changes over time may be considered an efficient measure to help predicting the risk of both development and progression of HF.

Red blood cell distribution width in elderly hospitalized patients with cardiovascular disease

BACKGROUND Red blood cell distribution width(RDW)is elevated in patients with cardiovascular disease(CVD).AIM To determine RDW values and impact of CV and non-CV coexisting morbidities in elderly patients hospitalized with chronic CVD.METHODS This prospective study included 204 consecutive elderly patients(age 77.5[7.41]years,female 94[46%],left ventricular ejection fraction 53.00%[37.50,55.00])hospitalized with chronic CVD at the Cardiology Department of Larissa University General Hospital(Larissa,Greece)from January 2019 to April 2019.Elderly patients were selected due to the high prevalence of coexisting morbidities in this patient population.Hospitalized patients with acute CVD(acute coronary syndromes,new-onset heart failure[HF],and acute pericarditis/myocarditis),primary isolated valvular heart disease,sepsis,and those with a history of blood transfusions or cancer were excluded.The evaluation of the patients within 24 h from admission included clinical examination,laboratory blood tests,and echocardiography.RESULTS The most common cardiac morbidities were hypertension and coronary artery disease,with acutely decompensated chronic heart failure(ADCHF)and atrial fibrillation(AF)also frequently being present.The most common non-cardiac morbidities were anemia and chronic kidney disease followed by diabetes mellitus,chronic obstructive pulmonary disease,and sleep apnea.RDW was significantly elevated 15.48(2.15);121(59.3%)of patients had RDW>14.5%which represents the upper limit of normal in our institution.Factors associated with RDW in stepwise regression analysis were ADCHF(coefficient:1.406;95%confidence interval[CI]:0.830-1.981;P<0.001),AF(1.192;0.673 to 1.711;P<0.001),and anemia(0.806;0.256 to 1.355;P=0.004).ADCHF was the most significant factor associated with RDW.RDW was on average 1.41 higher for patients with than without ADCHF,1.19 higher for patients with than without AF,and 0.81 higher for patients with than without anemia.When patients were grouped based on the presence or absence of anemia,ADCHF and AF,heart rate was not increased in those with anemia but was significantly increased in those with ADCHF or AF.CONCLUSION RDW was elevated in elderly hospitalized patients with chronic CVD.Factors associated with RDW were anemia and CV factors associated with elevated heart rate(ADCHF,AF),suggesting sympathetic overactivity.

Red blood cell distribution width derivatives in alcohol-related liver cirrhosis and metabolic-associated fatty liver disease

BACKGROUND Looking for undiscovered blood markers of liver fibrosis and steatosis still remains an issue worth exploring.There are still plenty of unresolved issues related to the actual role of hematological indices as potential markers of liver function.AIM To study red blood cell distribution width(RDW),RDW-to-platelet ratio(RPR)and RDW-to-lymphocyte ratio(RLR) in alcohol-related liver cirrhosis(ALC) and metabolic-associated fatty liver disease(MAFLD).METHODS The study group was composed of 302 people:142 patients with ALC and 92 with MAFLD;68 persons were included as controls.RDW,RPR and RLR were measured in each person.Indirect and direct parameters of liver fibrosis were also assessed [aspartate transaminase to alkaline transaminase ratio,aspartate transaminase to platelet ratio index(APRI),fibrosis-4(FIB-4),gamma-glutamyl transpeptidase to platelet ratio(GPR),procollagen I carboxyterminal propeptide,procollagen Ⅲ aminoterminal propeptide,transforming growth factor-α,plateletderived growth factor AB,laminin].MELD score in ALC patients and nonalcoholic fatty liver disease(NAFLD) fibrosis score together with BARD score were obtained in the MAFLD group.The achieved results were compared to controls.Then a correlation between assessed markers was done.Diagnostic value of each investigated parameter and its suggested cut-off in the research group RESULTS RDW,RPR and RLR values turned out to be significantly higher in ALC and MAFLD groups compared to controls(ALC:P<0.0001;NAFLD:P<0.05,P<0.0001 and P<0.0001,respectively).RPR correlated positively with MELD score(P<0.01) and indirect indices of liver fibrosis(FIB-4 and GPR;P<0.0001) in ALC patients;negative correlations were found between PDGF-AB and both:RDW and RPR(P<0.01 and P<0.0001,respectively).RPR correlated positively with NAFLD fibrosis score and APRI(P<0.0001) in the MAFLD group;a positive relationship was observed between RDW and FIB-4,too(P<0.05).AUC values and suggested cut-offs for RDW,RPR and RLR in ALC patients were:0.912(>14.2%),0.965(>0.075) and 0.914(>8.684),respectively.AUC values and suggested cut-offs for RDW,RPR and RLR in MAFLD patients were:0.606(>12.8%),0.724(>0.047) and 0.691(>6.25),respectively.CONCLUSION RDW with its derivatives appear to be valuable diagnostic markers in patients with ALC.They can also be associated with a deterioration of liver function in this group.

Relationship between red blood cell distribution width levels and atrial fibrillation in hypertensive patients

Background Information on the relationship between red blood cell distribution width(RDW)and atrial fibrillation(AF)in patients with essential hypertension are scarce.The study aimed to assess the relationship between AF and RDW in hypertensive patients.Methods We enrolled 432 hypertensive patients,including 350 AF patients and 82 patients as controls.Patients'demographic,clinical,laboratory and echocardiographic characteristics were recorded.The AF patients were further divided into the persistent and paroxysmal AF subgroups.Electrocardiograms were monitored to identify the cardiac rhythm during blood sampling,and based on the rhythm,the paroxysmal AF group was categorized into the presence(with AF rhythm during blood sampling)and absence(with sinus rhythm during blood sampling)groups.Results The AF group had elevated RDW levels than the controls(12.7%±0.8%vs.12.4%±0.7%,P=0.002),and the persistent AF subgroup had higher RDW levels than the paroxysmal AF subgroup(12.9%±0.8%vs.12.6%±0.8%,P=0.007).Furthermore,in the paroxysmal AF group,the presence group had higher RDW levels than the absence group(13.0%±0.6%vs.12.5%±0.9%,P=0.001).There was no significant difference in RDW levels between the persistent AF subgroup and presence group of the paroxysmal AF subgroup(P=0.533)and between the absence group of the paroxysmal AF subgroup and control group(P=0.262).In multivariate regression analysis,in hypertensive patients,the presence of AF rhythm is an independent predictor for increased RDW concentration(P=0.001).Conclusions The RDW may be associated with the presence of AF rhythm,which implies the importance of maintaining the sinus rhythm in hypertensive patients.

Relationship between red blood cell distribution width and intermediate-term mortality in elderly patients after percutaneous coronary intervention

Background Large-scale clinical research on the relationship between red blood cell distribution width （RDW） and intermediate-term prognosis in elderly patients with coronary artery disease （CAD） is lacking. Thus, this study investigated the effects of RDW on the intermediate-term mortality of elderly patients who underwent elective percutaneous coronary intervention （PCI）. Methods Data from 1891 patients 〉 65 years old underwent elective PCI from July 2009 to September 2011 were collected. Based on preoperative median RDW （12.3%）, the patients were divided into two groups. The low RDW group （RDW 〈 12.3%） had 899 cases; the high RDW group （RDW 〉 12.3%） had 992 cases. The all-cause mortality rates of the two groups were compared. Results Patients in the high RDW group were more likely to be female and accompanied with diabetes, had lower hemoglobin level. The mean follow-up period was 527 days. During follow-up, 61 patients died （3.2%）. The postoperative mortality of the high RDW group was significantly higher than that of the low RDW group （4.3% vs. 2.0%, P = 0.004）. After adjusting other factors, multivariate Cox regression analysis revealed that preoperative high RDW was significantly associated with postoperative all-cause mortality （hazard ratio： 2.301, 95% confidence interval： 1.106-4.785, P = 0.026）. Conclusions Increased RDW was an independent predictor of the increased intermediate-term all-cause mortality in elderly CAD patients after elective PCI.

qSOFA评分联合红细胞分布宽度与血钙比值对重症急性胰腺炎的早期识别及Nomogram图的构建

目的探讨快速序贯器官衰竭评分(quick sequential organ failure assessment,qSOFA)联合红细胞分布宽度与血钙比值(red blood cell distribution width-to-serum calcium ratio,RDC)对重症急性胰腺炎(severe acute pancreatitis,SAP)的预测价值。方法回顾性分析2018年6月~2022年10月徐州医科大学附属医院收治的319例急性胰腺炎患者的临床资料,根据病情严重程度分为非SAP组(n=260)和SAP组(n=59)。所有患者均于入院24h内进行血样采集并检测相应血液学指标,并于24h内进行qSOFA与急性胰腺严重床旁指数(bedside index for severity in acute pancreatitis,BISAP)评分。比较两组间的临床资料并进行Logistic回归分析危险因素。采用受试者工作特征(receiver operating characteristic,ROC)曲线评估qSOFA评分、RDC及两者联合评分对SAP的预测效能,并与BISAP评分进行比较。结果多因素Logistic回归分析发现,RDC(OR=4.111,95%CI:2.053~8.231,P<0.05)和qSOFA(OR=9.732,95%CI:3.974~23.832,P<0.05)高评分是SAP的独立危险因素。联合评分及BISAP评分预测SAP的曲线下面积(area under the curve,AUC)分别为0.915(95%CI:0.872~0.959,P<0.001)、0.839(95%CI:0.782~0.896,P<0.001),敏感度分别为93.2%、66.1%,特异性分别为85.0%、86.2%。结论qSOFA评分、RDC均可预测SAP的发生,两者联合评分对SAP发生的预测效能更高,可用于早期识别SAP的发生并指导早期干预。

The Value of MLPR,NLR,and RDW in the Assessment of Combined Pulmonary Embolism in Elderly Patients with AECOPD

Objective:To investigate the diagnostic value of the monocyte-to-large-platelet ratio(MLPR),neutrophil-to-lymphocyte ratio(NLR),and red blood cell distribution width(RDW)for pulmonary embolism(PE)in patients with acute exacerbation of chronic obstructive pulmonary disease(AECOPD).Methods:A total of 60 elderly AECOPD patients were enrolled and divided into embolus group(12 cases)and thrombus group(48 cases)according to whether they were combined with pulmonary embolism and the MLPR,NLR,and RDW values of the two groups were determined respectively.Results:The patients in the two groups had different degrees of vascular structural and functional abnormalities,and the MLPR,NLR,and RDW in the embolus group were significantly higher than those in the thrombus group(P<0.05);while the differences in NLR and RDW between the two groups were not significant.Conclusion:MLPR,NLR,and RDW can provide an objective basis for assessing PE in elderly AECOPD patients.

Red cell distribution width in anemic patients undergoing transcatheter aortic valve implantation

AIM: To determine the impact of red blood cell distribution width on outcome in anemic patients undergoing transcatheter aortic valve implantation(TAVI).METHODS: In a retrospective single center cohort study we determined the impact of baseline red cell distribution width(RDW) and anemia on outcome in 376 patients with aortic stenosis undergoing TAVI. All patients were discussed in the institutional heart team and declined for surgical aortic valve replacement due to high operative risk. Collected data included patient characteristics, imaging findings, periprocedural in hospital data, laboratory results and follow up data. Blood samples for hematology and biochemistry analysis were taken from every patient before and at fixed intervals up to 72 h after TAVI including blood count and creatinine. Descriptive statistics were used for patient's characteristics. KaplanMeier survival curves were used for time to event outcomes. A recursive partitioning regression and classification was used to investigate the association between potential risk factors and outcome variables.RESULTS: Mean age in our study population was 81 ± 6.1 years. Anemia was prevalent in 63.6%(n = 239) of our patients. Age and creatinine were identified as risk factors for anemia. In our study population, anemia per se did influence 30-d mortality but did not predict longterm mortality. In contrast, a RDW > 14% showed to be highly predictable for a reduced short- and longterm survival in patients with aortic valve disease after TAVI procedure.CONCLUSION: Age and kidney function determine the degree of anemia. The anisocytosis of red blood cells in anemic patients supplements prognostic information in addition to that derived from the WHO-based definition of anemia.

入院早期SOFA评分联合红细胞分布宽度对急性胰腺炎短期预后的预测价值分析

目的探讨入院早期序贯器官衰竭估计评分(SOFA)联合红细胞分布宽度(RDW)对急性胰腺炎(AP)短期预后的预测价值。方法选取合肥市第二人民医院2016年12月—2021年4月收治的79例AP患者作为研究对象,患者入院后,均接受AP相关治疗,根据治疗5 d后的临床疗效,将痊愈、好转患者归入预后良好组(n=65),无效患者归入预后不良组(n=14)。比较预后良好组与预后不良组入院早期SOFA评分、RDW等临床资料,多因素Logistic回归分析探讨影响AP患者短期预后的因素,Pearson相关性分析研究入院早期SOFA评分、RDW与急性生理与慢性健康评分(APACHEⅡ)的相关性,受试者工作特征(ROC)曲线评估入院早期SOFA评分、RDW对AP患者短期预后的预测价值。结果预后不良组APACHEⅡ评分,入院早期SOFA评分,RDW,尿素氮高于预后良好组,血小板计数低于预后良好组(均P<0.05);多因素Logistic回归分析结果显示APACHEⅡ评分,入院早期SOFA评分,RDW是AP预后的独立危险因素(OR=7.114,4.280,2.284,P<0.05);入院早期SOFA评分,RDW均与APACHEⅡ评分正相关(r=0.836,0.594,P<0.05);入院早期SOFA评分、RDW、二者联合预测AP患者短期预后的曲线下面积(AUC)分别为0.761(95%CI=0.617~0.905)、0.701(95%CI=0.523~0.867)、0.785(95%CI=0.750~1.000);入院早期SOFA评分联合RDW的AUC大于单独入院早期SOFA评分、RDW的AUC(P<0.05)。结论治疗无效的AP患者入院早期SOFA评分、RDW更高,入院早期SOFA评分、RDW是AP患者不良临床结局的独立影响因素,在预测患者短期预后中具有较高价值。