红细胞分布宽度对危重患者预后的评估价值DOI:10.3760/cma.j.issn.1671-0282.2014.08.015作者单位:201800上海,上海市嘉定区中心医院急诊科(王飞、姜婷婷、游达礼、杨炳华、徐峰、吴晓人嘉定区社会健康服务中心(丁勇)通信作者:吴晓,Email:wx5187@aliyun.com【摘要】目的探讨危重患者的红细胞分布宽度(RDW)与疾病危重程度的关系及对预后的判断作用。访法采用前瞻性、临床病例观察和诊断性试验研究。选择口2011年2月到2013年5月间,收住急诊ICU的196例危重患者。在入ICU第一个24h内抽取静脉血检测血常规(包括红细胞分布宽度),同时根据患者即时情况及各生化指标进行急性生理学和慢性健康状况评分(APACHEII评分)。根据临床转归分为两组,即存活组(n=126)和死亡组5二70),单因素方差分析比较两组间APACHEII评分及RDW水平的差异性。采用Spearman法对RDW及APACHEII评分进行相关性分析。分别建立RDW和APACHEII评分预测患者死亡的受试者工作特征(ROC)曲线。以约登指数法找到RDW和APACHEII预测死广的最佳截断值。结果死亡组患者入院时的APACHEII评分与RDW水平均显著高于存活组,分别为(20.43±6.41)vs.(13.94±6.77)和(13.35±2.21)vs.(11.34±1.32),P值均小于0.01;RDW与APACHEII评分呈显著正相关关系(相关系数尸0・309,P<0.01);分别用RDW及APACHEII预判死亡,其ROC曲线下面积及95%可信区间分别为0.792(0.725,0.860)和0.754(0.686,0.822),其最佳截断值分别是12.35和17.5,预判准确性分别为76.5%和70.4%o本组病例屮冇12名红细胞分布宽度超过15.4的患者均死亡。结论危重患者入住ICU时的RDW水平与疾病危重程度有非常密切的关系,对判断预后有重要参考价值。【关键词】红细胞分布宽度;危重病;APACHEII评分;危重程度;预后;相关性;诊断性试验;约登指数RedcelldistributionwidthcorrelateswithprognosisandseverityofcriticalillnessamongmedicalpatientsWangFei,DingYong,JiangTingling,YouDali,YangBinghtm,XuFeng,WuXiaoDepartmentofEmergency,CentralHospitalofJiadingDistrict,Shanghai201800,ChinaCorrespondingauthor:WuXiaoc,Email:wx5187@aliyun.com[Abstract]ObjectiveToinvestigatetheprognosticvalueofredcelldistributionwidth(RDW)andrelationshipbetweenRDWandseverityofcriticalillnesspatientsandprognosticroleofRDW.MethodsThiswasaprospectiveobservationalanddiagnosticteststudy.FromFebruary2011toMay2013,196medicalpatientsinTCUwereenrolledtostudy.Bloodsamplesweretakenwithin24hrsafteradmissiontoICUforbloodroutinetestandotherchemicalroutinetest,includingRDW.AcutePhysiologyandChronicHealthEvaluationII(APACHEII)scorewerealsocalculated.Thepatientsweredividedintosurvivalgroup(n=126)anddeathgroup(n=70)basedontheirhospitaloutcomes.DifferencesinRDWlevelsandAPACHEIIscorebetweensurvivalanddeathgroupswerecomparedwithOne-wayANOVA・ThecorrelationbetweenRDWandAPACHEIIscorewereanalyzedbySpearmancorrelationtest.Receiveroperatorcurve(ROC)testwasusedtodeterminethepredictivevalueofRDWandAPACHEIIforhospitaldeath.ResultsBothRDWlevelandAPACHEIIscoreweresignificantlyhigherindeathgroupthanthoseinsurvivalgroup,whichwere(13.35土2.21)vs.(11.34±1.32)and(20.43+6.41)vs.(13.94±6.77)respectively(bothP15.4weredead.ConclusionRDWlevelatadmissiontoICUcorrelatewellwiththeseverityofcriticalillness.RDWlevelhasanadditionalpredictivevaluefortheprognosisofcriticalillpatients.【Keywords]Redcelldistributionwidth;Criticalillness;APACHEIIscore;Severityofcriticalillness;Prognosis;Correlation;Diagnostictest;YodenIndex危重病患者因各种疾病可导致机体代谢发生一系列变化。红细胞分布宽度(RDW)是反映血液循环中外周血细胞异质性的一个指标,常用于贫血[1]的诊断、鉴别诊断和疗效观察。近年来,有研究显示RDW和多种心血管疾病的严重程度及预后有关[2-5]o急性生理学和...