Ratio of mean platelet volume to platelet count is a potential surrogate marker predicting liver cirrhosis

AIM To provide a simple surrogate marker predictive of liver cirrhosis(LC).METHODS Specimens from 302 patients who underwent resection for hepatocellular carcinoma between January 2006 and December 2012 were retrospectively analyzed. Based on pathologic findings, patients were divided into groups based on whether or not they had LC. Parameters associated with hepatic functional reserve were compared in these two groups using MannWhitney U-test for univariate analysis. Factors differing significantly in univariate analyses were entered into multivariate logistic regression analysis.RESULTS There were significant differences between the LC group(n = 100) and non-LC group(n = 202) in prothrombin activity, concentrations of alanine aminotransferase, aspartate aminotransferase, total bilirubin, albumin, cholinesterase, type Ⅳ collagen, hyaluronic acid, indocyanine green retention rate at 15 min, maximal removal rate of technitium-99 m diethylene triamine pentaacetic acid-galactosyl human serum albumin and ratio of mean platelet volume to platelet count(MPV/PLT). Multivariate analysis showed that prothrombin activity, concentrations of alanine aminotransferase, aspartate aminotransferase, total bilirubin and hyaluronic acid, and MPV/PLT ratio were factors independently predictive of LC. The area under the curve value for MPV/PLT was 0.78,with a 0.8 cutoff value having a sensitivity of 65% and a specificity of 78%.CONCLUSION The MPV/PLT ratio, which can be determined simply from the complete blood count, may be a simple surrogate marker predicting LC.

Usefulness of white blood cell count to mean platelet volume ratio for predicting long-term prognosis after primary percutaneous coronary intervention in patients with acute coronary syndrome

Background and Objective The white blood cell count to mean platelet volume ratio(WMR)has recently been described as a predictor of cardiovascular events in patients who undergo percutaneous coronary intervention(PCI).The aim of this study was to investigate the usefulness of admission WMR in predicting outcomes in patients with acute coronary syndrome(ACS).

Platelet count/spleen diameter ratio to predict esophageal varices in Mexican patients with hepatic cirrhosis

AIM: To validate whether the platelet count/spleen size ratio can be used to predict the presence of esophageal varices in Mexican patients with hepatic cirrhosis.

Longitudinal changes in personalized platelet count metrics are good indicators of initial 3-year outcome in colorectal cancer

BACKGROUND Platelet count or complete blood count(CBC)-based ratios including lymphocyteto-monocyte(LMR),neutrophil-to-lymphocyte(NLR),hemoglobin-to-platelet(HPR),red blood cell count distribution width-to-platelet(RPR),and platelet-tolymphocyte(PLR)ratio are good predictors of colorectal cancer(CRC)survival.Their change in time is not well documented,however.AIM To investigate the effect of longitudinal CBC ratio changes on CRC survival and their possible associations with clinicopathological properties,comorbidities,and anamnestic data.METHODS A retrospective longitudinal observational study was conducted with the inclusion of 835 CRC patients,who attended at Semmelweis University,Budapest.CBC ratios and two additional newly defined personalized platelet count metrics(pPLT_(D)and pPLT_(S),the platelet counts relative to the measurement at the time of CRC diagnosis and to the one 4-6 wk after tumor removal surgery,respectively)were recorded.RESULTS The 835 CRC patients had a total of 4608 measurements(5.52 visits/patient,in average).Longitudinal survival models revealed that the increases/decreases in LMR[hazard ratio(HR):0.4989,P<0.0001],NLR(HR:1.0819,P<0.0001),HPR(HR:0.0533,P=0.0038),pPLT_(D)(HR:4.9229,P<0.0001),and pPLT_(S)(HR:4.7568,P<0.0001)values were poor prognostic signs of disease-specific survival.The same was obtained for all-cause mortality.Most abnormal changes occurred within the first 3 years after the diagnosis of CRC.RPR and PLR had an only marginal effect on diseasespecific(P=0.0675)and all-cause mortality(Bayesian 95%credible interval:0.90–186.05),respectively.CONCLUSION LMR,NLR,and HPR are good metrics to follow the prognosis of the disease.pPLT_(D)and pPLT_(S)perform just as well as the former,while the use of RPR and PLR with the course of the disease is not recommended.Early detection of the abnormal changes in pPLT_(D),pPLT_(S),LMR,NLR,or HPR may alert the practicing oncologist for further therapy decisions in a timely manner.

Mean Platelet Volume as an Inflammation Marker, Possible Biomarker of Tumor Detection in Prostate Biopsy

Background: In the diagnosis of prostatic diseases, the need for markers other than prostate specific antigen (PSA) has been increasing in recent years. So, we aimed to determine the predictive value, the neutrophil lymphocyte ratio, platelet-to-lymphocyte ratio and mean platelet volume before prostate biopsy in predicting the results of pathology. Transrectal ultrasound-guided biopsy of the prostate was performed because of high PSA values and compared values of these parameters to predict of pathology results. Methods: 2715 patients who underwent 10 - 12 quadrant transrectal ultrasound-guided prostate biopsies between January 2008 and January 2018 have been evaluated retrospectively. Patients were divided into groups according to the biopsy pathology results by benign (group 1), atypical small acinar proliferation (ASAP) (group 2) and prostate cancer (group 3). A total of 204 patients who were benign prostate hyperplasia in 71 patients (34.8%), atypical small acinar proliferation in 80 (39.21%) and prostate adenocarcinoma (PCa) in 53 patients (25.98%) were included in the study by systematic sampling. Before the biopsy total PSA (tPSA), free PSA (fPSA), rate of percentage of free to total prostate specific antigen (f/tPSA) rate, PSA density (PSA-D), white blood cell (WBC) count, blood neutrophil count (NC), blood lymphocyte count (LC), neutrophil lymphocyte ratio (NLR), mean platelet volume (MPV), platelet count (PLT) and platelet-to-lymphocyte ratio (PLR) were measured and compared in all groups. Differences in continuous variables were assessed using the ANOVA. Logistic regression was used to analyze the linear relationship between predictive variables and pathology results. P < 0.05 was considered statistically significant. Results: NLR and PLR values were lower in group 1 than group 2 and were found statistically significant between in group 1 and group 2 (p: 0.03 and p: 0.02, respectively). MPV value was found 1.7 times higher in patients who were diagnosed with ASAP pathology than those with benign pathologies. Although there was statistically significant increase in MPV values in logistic regression results, no statistically significant diagnostic value was found. In addition MPV value was found 0.5 times higher in patients who were diagnosed patients with ASAP than prostate cancer group. ROC analysis showed that the optimal threshold was 7.65 femtoliter (sensitivity: 51%;specificity: 30%) and was found to be a statistically significant diagnostic value to distinguish groups 2 and 3. The lowest value of MPV was found in group 3. Conclusions: In cases where the PSA value is insufficient in predicting the pathology result, the effect of NLR, PLR and MPV on differential diagnosis can be kept in mind. While NLR and PLR are more useful in the diagnosis of ASAP, MPV is more effective in the diagnosis of malignancy.

New indicators in evaluation of hemolysis,elevated liver enzymes,and low platelet syndrome:A case-control study

BACKGROUND Indices such as the neutrophil-to-lymphocyte ratio(NLR),platelet-to-lymphocyte ratio(PLR),mean platelet volume(MPV),platelet distribution width(PDW),and red cell distribution width(RDW)are considered new markers of the systemic inflammatory response(SIR),and have been widely implemented for the diagnosis of patients with inflammatory diseases.These new indicators have also been widely investigated in preeclampsia(PE)but less analyzed in hemolysis,elevated liver enzymes,and low platelet(HELLP)syndrome.AIM To compare SIR markers among HELLP patients,PE only patients,and healthy gravidae.METHODS This retrospective case-control study enrolled 630 cases,including 210 patients with HELLP syndrome(HELLP group),210 patients with only PE(PE group)and 210 healthy gravidae(control group).The three groups were matched by age,parity,status of assisted reproduction,and multiple pregnancies.Birthweight,gestational age at complete blood count collection,gestational age at delivery,mode of delivery,etc.were recorded.The main indices as NLR,PLR,MPV,PDW,and RDW among the groups were compared,as well as some secondary outcomes including neutrophil,platelets,and hemoglobin.RESULTS The NLR(6.4 vs 4.3 vs 3.5),MPV(11.9 vs 11.2 vs 10.7),PDW(16.4 vs 13.3 vs 14.2),leukocyte(12.4×10^(9)/L vs 9.7×10^(9)/L vs 8.7×10^(9)/L)and neutrophil count(9.9×10^(9)/L vs 7.3×10^(9)/L vs 6.1×10^(9)/L)were highest in the HELLP group,lower in the PE group,and lowest in the control group.Both the overall comparisons between the three groups(all bP<0.01)and pairwise comparisons between every two groups elicited statistically significant differences(all dP<0.01,except control vs PE:cP<0.05 in PDW).The average lymphocyte counts were 1.4(1.1,2.0)×10^(9)/L in the HELLP group,1.6(1.3,2.0)×10^(9)/L in the PE group and 1.7(1.4,2.0)×10^(9)/L in the control group.The overall comparison of lymphocyte count within the three groups had statistically significant differences(P=0.000).The pairwise comparisons between every two groups demonstrated that the HELLP group had a lower lymphocyte count than both the PE(P=0.019)and control groups(P=0.000),but the difference between the PE and control groups was not statistically significant(P=0.432).The overall comparisons on platelet counts and the PLR among these three groups also showed statistically significant differences(both P=0.000),from low to high being those in the HELLP group(43.4×10^(9)/L,64.0),control group(180.5×10^(9)/L,103.6)and PE group(181.5×10^(9)/L,112.8).Pairwise comparisons of neither index displayed statistically significant differences between the PE and control groups(both P>0.05),while the differences in the two indices between the HELLP group and the two other groups were still statistically significant(all P=0.000).RDW values were highest in the HELLP group(14.5%[13.6,15.3]),lower in the control group(14.1%[13.5,14.8])and lowest in the PE group(13.9%[13.4,14.9]).The difference between the PE and control group did not show statistical significance(P=1.000),while RDW values in the HELLP group were higher than those in the other two groups(cP<0.05 vs control,dP<0.01 vs PE).CONCLUSION SIR markers such as NLR,RDW,MPV,and PDW were increased and PLR was decreased in HELLP.These SIR markers may become new indicators in the evaluation of HELLP syndrome.

Tumor-infiltrating platelets predict postoperative recurrence and survival in resectable pancreatic neuroendocrine tumor

BACKGROUND Platelets have been reported to participate in tumor cell growth,extravasation,epithelial–mesenchymal transition,metastasis,and drug resistance.However,the importance of platelets in pancreatic neuroendocrine tumor(pNET)lacks adequate literature support.The predictive value of tumor-infiltrating platelets(TIPs)in pNET remains unclear.AIM To investigate the relationship between TIPs and the prognosis of patients with pNET following radical resection.METHODS In total,113 patients who had undergone radical surgical resection with a pathologic diagnosis of pNET were enrolled in this study.Immunohistochemical analysis of cluster of differentiation 42b(CD42b)expression in the tumor specimens was performed to determine the presence of TIPs.Univariate and multivariate analyses were used to analyze the prognostic value of TIPs.RESULTS TIPs were observed in intratumoral areas in 54 patients.Neither basic characteristics nor preoperative platelet-associated indicators showed a significant relationship with the presence of TIPs(all P>0.05).Patients with positive intratumoral CD42b expression had worse overall survival(P=0.005)and recurrence-free survival(P<0.001)than those with negative intratumoral CD42b expression.Multivariate analysis demonstrated that TIPs were independent prognostic factors for overall survival(P=0.049)and recurrencefree survival(P=0.003).Nevertheless,platelet count,mean platelet volume,and platelet-to-lymphocyte ratio were not associated with postoperative survival or recurrence in pNET patients(all P>0.05).CONCLUSION TIPs are a useful prognostic biomarker for patients with resectable pNET,and their detection represents a promising tool for pNET treatment strategy decisions.

Role of platelet parameters as a biomarker in diagnosis of acute appendicitis: A retrospective case-controlled study

Objective: To investigate the diagnostic value of platelet parameters in acute appendicitis. Methods: This retrospective case-controlled study was performed among 200 healthy people and 200 patients with a primary diagnosis of acute appendicitis between October 2017 and June 2018. The patients were classified into three groups: the acute complicated appendicitis (suppurative and gangrenous) group, acute non-complicated appendicitis group and the control group. Red blood cell, white blood cell, lymphocyte, monocyte and platelets count, red blood cell distribution width, hemoglobin, hematocrit, mean platelet volume, platelet distribution width, and C-reactive protein were compared between the groups. Results: Thirty-nine (19.5%) patients with acute appendicitis had no complication and 161 (80.5%) developed a complication. The white blood cell count, neutrophil count and C-reactive protein serum levels were significantly higher, whereas the mean age, lymphocyte count, monocyte count, red blood cell distribution width and platelet count were significantly lower in acute appendicitis patients with and without complications compared with the control group. Moreover, combined analysis of best diagnostic parameters (white blood cell, neutrophil and lymphocyte counts) showed that combined parallel sensitivity and specificity were 98.7% and 42.7%, respectively. Conclusions: White blood cell, lymphocyte counts and neutrophil count could be used for diagnosis of acute appendicitis. More over the utility of mean platelet volume for differential diagnosis might be overestimated.

Changes in Platelet Indices during Pregnancy as Potential Markers for Prediction of Preeclampsia Development

Objective: To assess whether changes in platelet indices, detectable by simple complete blood count (CBC), during pregnancy could be used as markers for prediction of development of preeclampsia (PE). Methods: A total of 2813 pregnant women who received regular antenatal care until delivery were included. Participants were divided into 3 groups: normotensive pregnant women (n = 2621), women with PE without severe features (n = 169), and women with PE with severe features (n = 23). Blood samples were collected during antenatal visits and/or during the period of in-patient hospital stay, and changes in platelet indices were compared among the three groups. Results: Platelet count (PC) was decreasing while mean platelet volume (MPV) and platelet distribution width (PDW) were increasing as PE progressed. Receiver operating characteristics (ROC) curve analysis showed that PDW had the largest area under curve (AUC) [0.980 (95% CI: 0.964 - 1.000)], making it the best marker for predicting development of PE. Also, PDW showed the most statistically significant correlation with mean arterial pressure (MAP) (r = 0.902, p = 0.000), making it the best marker for predicting severity of hypertension. Conclusion: This study provides evidence that PC decreases while MPV and PDW increase as pregnancy advances, and these changes are more pronounced in PE than normotensive pregnancy. These changes predate development of PE by 2 - 8 weeks and are proportional to the progress of this disorder. The selected platelet indices, especially PDW, have the potential to be utilized as markers for not only prediction of PE development but also severity of hypertension.

凝血功能联合平均血小板体积与血小板计数比值对脑梗死的诊断价值

目的探讨凝血功能指标联合平均血小板体积与血小板计数比值对急性脑梗死(ACI)的诊断价值。方法95例ACI患者按照疾病严重程度分为轻度39例、中度37例及重度19例,比较不同程度ACI患者入院时的凝血功能指标[凝血酶原时间(PT)、活化部分凝血活酶时间(APTT)、纤维蛋白原(FIB)、凝血酶时间(TT)、D二聚体(D-Dimer)、纤维蛋白溶解产物(FDP)]和平均血小板体积与血小板计数比值;采用ROC曲线下面积(AUC)评估凝血功能指标、平均血小板体积与血小板计数比值单项或联合检测对ACI严重程度的诊断价值;采用Pearson相关系数(r)分析各项检测指标与ACI的相关性。结果轻度组患者PT、APTT及TT长于中度组和重度组,FIB、D-Dimer、FDP及平均血小板体积与血小板计数比值低于中度组和重度组,差异有统计学意义(P<0.05);ROC曲线结果显示,凝血功能指标、平均血小板体积与血小板计数比值联合检测诊断ACI的AUC为0.943,高于其他单项检测的AUC;相关性分析显示,ACI患者PT、APTT、FIB、TT、D-Dimer、FDP及平均血小板体积与血小板计数比值均存在一定的相关性(P<0.05)。结论不同严重程度ACI患者的凝血功能指标及平均血小板体积与血小板计数比值存在明显差异,凝血功能指标及平均血小板体积与血小板计数比值对ACI诊断具有一定价值,联合检测诊断价值更高。

急性冠状动脉综合征患者入院早期白细胞计数与平均血小板体积比值和血小板与淋巴细胞比值与冠状动脉狭窄程度及院内主要不良心血管事件的评估价值

目的 分析急性冠状动脉综合征(ACS)患者的白细胞计数与平均血小板体积比值(WMR)和血小板与淋巴细胞比值(PLR)与冠状动脉病变严重程度的相关性,并探究WMR、PLR对冠状动脉狭窄程度及院内主要不良心血管事件(MACE)的预测价值。方法 本研究为回顾性分析,收集了2020年12月至2022年11月在新疆医科大学第一附属医院急诊抢救室因胸痛、胸闷首次诊断为ACS并接受经皮冠状动脉介入(PCI)治疗的391例患者数据。根据临床分型,将患者分为不稳定型心绞痛(UA)组147例,非ST段抬高型心肌梗死(NSTEMI)组114例,及ST段抬高型心肌梗死(STEMI)组130例。进一步按照是否出现院内MACE分为MACE组106例和无MACE组285例。依据Gensini评分中位数将患者分为重度病变组(Gensini评分≥53分)196例和轻度病变组(Gensini评分<53分)195例。比较各组患者的基本资料及实验室检查指标,使用二元多因素logistic回归模型筛选冠状动脉狭窄程度及院内MACE的影响因素,分析WMR、PLR与冠状动脉狭窄程度的相关性,并通过ROC曲线分析WMR、PLR及其联合对冠状动脉狭窄程度及院内MACE的预测诊断价值。结果 WMR和PLR与ACS患者冠状动脉狭窄程度均呈正相关(r=0.336,P<0.001;r=0.374,P<0.001)。二元多因素logistic回归分析表明,WMR和PLR均为冠状动脉狭窄程度和院内MACE的独立危险因素。ROC曲线结果显示,WMR、PLR及两者联合预测院内MACE的AUC分别为0.748、0.722和0.792;预测冠状动脉狭窄程度的AUC分别为0.694、0.716和0.770。结论 ACS患者入院早期WMR和PLR与冠状动脉狭窄程度呈正相关,并且具有预测院内MACE及冠状动脉狭窄程度的临床价值,其联合使用在诊断效果上更为优越。

抗栓治疗后血小板参数对非心源性脑梗死预后的预测价值研究

目的研究抗栓治疗后血小板参数对非心源性脑梗死(NCCI)预后的预测价值。方法71例NCCI患者,所有患者均于入院首日抗栓之前完成血小板参数[血小板分布宽度(PDW)、平均血小板体积(MPV)、血小板计数(PLT)、PDW/PLT、MPV/PLT]测定。抗栓7 d后,所有NCCI患者均完善PDW、MPV、PLT、PDW/PLT、MPV/PLT复查,分别以PLT7、PDW7、MPV7、MPV7/PLT7、PDW7/PLT7表示。选取改良Rankin量表(MRS)对患者6个月时神经功能恢复情况做出评估,根据预后评估结果分为预后不良组(MRS评分>2分,10例)与预后良好组(MRS评分≤2分,61例)。①比较两组一般资料及血化验结果;②采用多因素Logistic回归分析NCCI患者抗栓7 d后预后不良的危险因素;③采用受试者工作特征曲线(ROC曲线)分析阳性指标对NCCI患者预后的预测价值。结果抗栓后,61例患者预后良好,10例患者预后不良。两组患者年龄、性别、饮酒、吸烟、冠心病、糖尿病、高血压、白细胞计数、尿酸、尿素氮、肌酐、同型半胱氨酸、低密度脂蛋白胆固醇、高密度脂蛋白胆固醇、甘油三酯、总胆固醇、MPV、PDW、PLT7、PDW/PLT水平比较差异无显著性(P>0.05)。预后不良组患者PLT(157.72±46.53)×10^(9)/L明显低于预后良好组的(195.04±55.42)×10^(9)/L,MPV/PLT(0.77±0.14)×10^(-10)fl/L明显高于预后良好组的(0.61±0.23)×10^(-10)fl/L,差异有显著性(P<0.05);预后不良组患者MPV7、MPV7/PLT7、PDW7、PDW7/PLT7分别为(14.72±4.07)fl、(0.73±0.23)×10^(-10)fl/L、(11.63±1.48)fl、(0.92±0.39)×10^(-10)fl/L,明显高于预后良好组的(12.29±3.26)fl、(0.52±0.21)×10^(-10)fl/L、(9.81±1.58)fl、(0.71±0.25)×10^(-10)fl/L,差异有显著性(P<0.05)。将单因素分析中显示差异有显著性的因素(PLT、MPV/PLT、PDW7、PDW7/PLT7、MPV7、MPV7/PLT7)纳入多因素Logistic回归分析,结果显示:MPV7为NCCI患者预后不良的危险因素[OR=7.668,95%CI=(1.526,38.527),P=0.012<0.05]。ROC曲线显示:MPV7对NCCI患者的预后具有预测价值,以10.13 fl为临界值,MPV7预测NCCI患者预后不良的曲线下面积(AUC)为0.786[95%CI=(0.677,0.896),P=0.001<0.05],灵敏度为83.33%,特异度为69.50%。结论抗栓7 d后MPV为NCCI患者预后不良的危险因素,可辅助预测NCCI预后情况。

AMI患者PLT、PDW、PLR水平及其与疾病严重程度的相关性研究

目的探讨急性心肌梗死(AMI)患者血小板计数(PLT)、血小板分布宽度(PDW)、血小板/淋巴细胞比值(PLR)水平及其与疾病严重程度的相关性。方法选取2017年1月至2020年12月苏州市相城区中医医院收治的200例AMI患者作为观察组,另选取同期150例常规体检健康者作为对照组。根据AMI患者随访结果又分为预后不良组和预后良好组。比较观察组和对照组,以及预后良好组和预后不良组PLT、PDW、PLR水平。采用多因素Logistic回归分析AMI患者预后的危险因素。采用Spearman相关分析Killip心功能分级与PLT、PDW、PLR水平的相关性;采用Pearson相关分析PLT、PDW、PLR水平的相关性。结果观察组PLT[(166.32±28.44)×10^(9)/L]高于对照组[(158.77±30.52)×10^(9)/L],PDW[(16.59±4.95)%]高于对照组[(15.54±3.01)%],PLR(162.40±78.85)高于对照组(114.74±12.34),差异均有统计学意义(P<0.05)。预后不良组和预后良好组性别、年龄、体质量指数、吸烟史、糖尿病、高血压、高血脂比较,差异均无统计学意义(P>0.05);预后不良组和预后良好组Killip心功能分级,PLT、PDW、PLR水平比较,差异均有统计学意义(P<0.05)。多因素Logistic回归分析结果显示,PLT、PDW、PLR水平升高是AMI患者预后不良的独立危险因素(P<0.05)。Spearman相关分析结果显示,Killip心功能分级与PLT、PDW、PLR水平均呈正相关(r=0.702、0.664、0.302,P<0.05);Pearson相关分析结果显示,PLT水平与PDW、PLR水平均呈正相关(r=0.361、0.507,P<0.05),PDW水平与PLR水平呈正相关(r=0.596,P<0.05)。结论AMI患者PLT、PDW、PLR水平均升高,并且与AMI患者的Killip心功能分级均呈正相关,PLT、PDW、PLR可作为预测AMI患者预后的良好指标,对预防和治疗AMI有重要临床意义。

中性粒细胞与淋巴细胞比率、血小板计数联合D-二聚体对重症肺炎合并脓毒症患儿预后的预测价值

目的探讨中性粒细胞与淋巴细胞比率(neutrophil to lymphocyte ratio,NLR)、血小板(platelet,PLT)计数联合D-二聚体(D-dimer,D-D)对重症肺炎合并脓毒症患儿预后的预测价值。方法回顾性分析首都医科大学附属北京儿童医院急诊重症监护病房(emergency intensive care unit,EICU)2018年1月~2023年1月收治的310例重症肺炎合并脓毒症患儿的临床资料,对所有患儿治疗出院后进行门诊复查或电话随访并根据相关标准对患儿预后进行评估,根据预后情况分为预后良好组(n=198)和预后不良组(n=112)。利用医院电子病历系统,收集全部患儿年龄、性别等基本临床资料,记录入院时患儿早期预警评分[慢性健康状况评分Ⅱ(acute physiology and chronic health evaluationⅡ,APACHEⅡ)、序贯器官衰竭评分(sequential organ failure assessment,SOFA)],并收集诊断患儿入院24 h内的实验室指标。采用Logistic回归分析肺炎合并脓毒症患儿发生预后不良的相关影响因素,采用受试者工作特征(receiver operating characteristic,ROC)曲线分析NLR、PLT计数、D-D预测重症肺炎合并脓毒症患儿预后的灵敏度、特异度、准确度。结果两组患儿年龄、性别差异无统计学意义(P>0.05)。预后不良组APACHEⅡ、SOFA评分显著高于预后良好组(P<0.05)。预后良好组NLR、D-D水平均低于预后不良组,PLT计数水平高于预后不良组(P<0.05)。将单因素分析的结果中P≤0.05的变量纳入多因素Logistic回归确定影响预后的独立危险因素。调整年龄、性别、APACHEⅡ评分等混杂因素,连续变量原值收入,结果表明,NLR、D-D水平是预后的保护因素(OR<1,P<0.05),PLT计数水平是预后的危险因素(OR>1,P<0.05)。ROC曲线分析结果显示,三项指标联合预测的曲线下面积(area under the curve,AUC)为0.949,灵敏度为94.95%,特异度为82.14%,准确度为90.32%,三者联合预测效能价值高。结论重症肺炎合并脓毒症患儿的外周血NLR、PLT计数、D-D水平显著升高,三项联合检测在预测患儿28 d后的预后中具有重要的价值。

子痫前期患者ACR、PLT、D-D水平变化及其在预测不良妊娠结局中的价值

目的探讨子痫前期(PE)患者尿蛋白/肌酐比值(ACR)、血小板计数(PLT)、D-二聚体(D-D)水平变化及其在预测不良妊娠结局中的价值。方法回顾性选取2019年10月至2022年10月在本院就诊的103例PE患者为PE组,另取同期40例正常妊娠产妇为对照组。测定两组受试者ACR、PLT、D-D水平,根据病情严重程度,将PE患者分为重度组和轻度组,比较不同病情严重程度患者ACR、PLT、D-D水平,根据妊娠结局,将PE患者分为妊娠结局良好组和妊娠结局不良组,比较不同妊娠结局患者ACR、PLT、D-D水平,并分析ACR、PLT、D-D评估不良妊娠结局的价值。结果PE组ACR和D-D水平高于对照组,PLT水平低于对照组(P<0.05);重度组ACR和D-D水平高于轻度组,PLT水平低于轻度组(P<0.05);妊娠结局不良组ACR和D-D水平高于妊娠结局良好组,PLT水平低于妊娠结局良好组(P<0.05);ROC曲线结果显示,ACR评估患者不良妊娠结局的AUC和截点值分别为0.799、89.61mg/mmol,PLT评估患者不良妊娠结局的AUC和截点值分别为0.860、52.05×10^(9)/L,D-D评估患者不良妊娠结局的AUC和截点值分别为0.762、1.52μg/mL,联合评估患者不良妊娠结局的AUC为0.930,高于单项评估(P<0.05)。结论PE患者中ACR和D-D水平上升,PLT水平下降,这3个指标均与患者病情严重程度有关,且联合评估不良妊娠结局价值较高。

平均血小板体积/淋巴细胞比值与老年非瓣膜性心房颤动患者左心房血栓形成的关系

目的探讨平均血小板体积/淋巴细胞比值(MPVLR)与老年非瓣膜性心房颤动(NVAF)患者左心房血栓形成的关系。方法将2019年1月至2022年12月该院收治的178例老年NVAF患者纳入研究。根据食管超声心动图(TEE)判断患者左心房血栓形成情况,将患者分为血栓组(28例)和非血栓组(150例)。采用全自动血细胞分析仪检测白细胞计数(WBC)、红细胞计数(RBC)、淋巴细胞计数、淋巴细胞比例、血小板计数(PLT)、平均血小板体积(MPV)并计算MPVLR。采用全自动生化分析仪检测肝、肾功能指标及血脂指标。采用受试者工作特征(ROC)曲线评估MPV、淋巴细胞比例、MPVLR对NVAF患者左心房血栓形成的预测价值。采用多因素Logistic回归分析老年NVAF患者左心房血栓形成的影响因素。结果血栓组MPV、淋巴细胞比例、MPVLR均高于非血栓组,差异均有统计学意义(P<0.05)。ROC曲线分析显示,MPV、淋巴细胞比例、MPVLR预测NVAF患者左心房血栓形成的曲线下面积(AUC)分别为0.821(95%CI:0.764~0.882)、0.771(95%CI:0.714~0.842)、0.901(95%CI:0.861~0.949)。血栓组病程长于非血栓组,有慢性心力衰竭者比例、有脑卒中者比例、CHA2DS2-VASc评分、LAEF、LAD、LVEDV、MPVLR、血尿酸、MPV、淋巴细胞比例、MPVLR均高于非血栓组,LVEF低于非血栓组,差异均有统计学意义(P<0.05)。多因素Logistic回归分析显示,病程≥1.93年(OR=3.050,95%CI:1.928~4.824)、慢性心力衰竭(OR=3.333,95%CI:1.808~6.144)、MPVLR≥3.10(OR=3.873,95%CI:1.734~8.650)是老年NVAF患者左心房血栓形成的独立危险因素(P<0.05)。结论MPVLR升高与老年NVAF患者左心房血栓形成存在关联,可作为预测患者左心房血栓形成的指标。

NLR、PLR、MPVLR、PDWLR对系统性红斑狼疮和狼疮性肾炎临床预测作用的研究进展

系统性红斑狼疮(SLE)是一种可导致多种器官受累的自身免疫性疾病,其特征是持续的慢性炎症反应,狼疮性肾炎(LN)是SLE最严重的并发症之一,也是导致患者死亡的重要原因。中性粒细胞与淋巴细胞比值(NLR)、血小板计数与淋巴细胞比值(PLR)、平均血小板体积与淋巴细胞比值(MPVLR)、血小板体积分布宽度与淋巴细胞比值(PDWLR)作为常见的外周血细胞参数,是一种新兴的系统性炎症标志物,反映了机体在炎症反应与免疫失衡中的内环境变化。该综述重点介绍了NLR、PLR、MPVLR、PDWLR对SLE和LN的预测作用,总结对比了NLR与PLR、MPVLR与PDWLR对SLE预测的灵敏度,为评估SLE疾病活动度和LN肾脏受累程度提供参考价值。目前对于这些炎症标志物的研究仍处于早期研究阶段,仍缺少各炎症标志物之间联合应用的研究以及多中心、大样本、前瞻性研究进行验证。

外周血炎症指标淋巴细胞/单核细胞比值、平均血小板体积及血小板分布宽度在HELLP综合征中的预测价值

目的 探讨外周血炎症指标淋巴细胞/单核细胞比值(LMR)、平均血小板体积(MPV)及血小板分布宽度(PDW)在HELLP综合征中的预测价值。方法 选取2021年1月至2022年12月河北省沧州市人民医院收治的重度子痫前期患者160例,根据是否并发HELLP综合征将其分为HELLP组(42例)和非HELLP组(118例),收集并比较两组临床资料;分析HELLP综合征发生的危险因素及LMR、MPV及PDW对HELLP综合征的预测价值。结果 HELLP组白细胞计数、中性粒细胞计数、LMR、MPV及PDW高于非HELLP组,差异有统计学意义(P<0.05)。LMR、MPV、PDW是HELLP综合征发生的危险因素(OR=1.701、1.894、1.593,P<0.05)。LMR、MPV、PDW联合预测HELLP综合征的曲线下面积高于各指标单独检测(P<0.05)。结论 LMR、MPV及PDW是HELLP综合征发生的危险因素,三者联合对HELLP综合征发生有一定的预测价值,早期预测有助于正确处理和采取必要的预防措施。

脑出血患者循环血中HBP、ALT、AST、WBC、NEU、PLT表达与感染及预后的相关性

目的:讨论脑出血患者循环血中肝素结合蛋白(heparin-binding protein,HBP)、丙氨酸氨基转移酶(alanine aminotransferase,ALT)、天冬氨酸氨基转移酶(aspartate aminotransferase,AST)、白细胞(white blood cell,WBC)、中性粒细胞比率(neutrophil,NEU)、血小板(platelet,PLT)表达水平,分析其与患者感染及预后的关系。方法:选取脑出血患者164例,入院和出院时分别检测循环血中HBP、ALT、AST、WBC、NEU和PLT水平,分组分析以上指标与感染和预后的相关性。结果:感染组HBP、WBC、NEU、PLT最高值水平均高于非感染组。感染组患者预后比较ALT和WBC最高值、非感染组患者预后比较NEU最高值,差异有统计学意义(P<0.05)。AST最高值是否异常在不同预后情况中比例相反。ROC曲线分析显示,HBP、ALT、AST、WBC最高值联合检测对脑出血患者预后不良的曲线下面积为0.781,敏感度和特异度分别为85.7%和62.7%。结论:脑出血患者循环血中HBP、WBC、NEU及PLT在检测中最高值异常高表达提示感染风险,当HBP、ALT、AST、WBC水平联合检测对脑出血患者预后不良具有较好的预测效能。

外周血红细胞分布宽度、平均血小板容积、中性粒细胞与淋巴细胞比值、血小板与淋巴细胞比值和淋巴细胞与单核细胞比值对肺癌的诊断价值研究

目的:探讨外周血红细胞分布宽度(RDW)、平均血小板容积(MPV)、中性粒细胞与淋巴细胞比值(NLR)、血小板与淋巴细胞比值(PLR)及淋巴细胞与单核细胞比值(LMR)在肺癌中的诊断价值。方法:选取113例肺癌患者(肺癌组)和113例体检健康者(对照组)。检测两组全血细胞并计算NLR、PLR、MPV。绘制受试者工作特征(ROC)曲线分析RDW、MPV、NLR、LMR和PLR对肺癌的诊断价值。结果:肺癌组患者RDW、NLR、PLR和MPV值高于对照组,LMR低于对照组(均P<0.05)。RDW、MPV、NLR、PLR和LMR在肺癌组不同病理学亚组间比较差异无统计学意义(均P>0.05)。RDW、MPV、NLR、PLR、LMR的曲线下面积(AUC)分别为0.600、0.629、0.882、0.788、0.868,而五项联合诊断肺癌的AUC(0.933)更高(均P<0.05)。结论:肺癌患者外周血RDW、NLR、PLR和MPV升高,LMR降低,五项联合对肺癌的诊断价值较高。