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266 个结果
  • 简介:ECAPsarethesummaryofmultipleneurons’spikeswhichcouldberecordedbyabidirectionalstimulation-recordingsystemviathecochlearimplant,withtheartifacteliminationparadigmsofforward-maskingsubtractionparadigmoralternatingpolarityparadigm.ThreekindsofFDAapprovedcochlearimplantssupportECAPtesting.ThisarticleistosummarizetheclinicalapplicationofECAPlest.ECAPtestafterinsertionofelectrodeduringimplantoperationhasbeenwidelyusedduringcochlearimplantsurgery.Inrecentyears.ECAPthresholdsarealsousedtoestimatetheTlevelsandClevelshelpingprogramming.However,correlationbetweenECAPthresholdsandpsychophysicalthresholdsisaffectedbymanyfactors.Sofar,ECAPscannotyetbeagoodindicatorofpost-operativehearingandspeechperformance.

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  • 简介:目前,学术界对失语症的分类问题仍有不少争议,但以解剖一临床为基础将失语症分为Broca失语、Wernicke失语、传导性失语、经皮质运动性失语、经皮质感觉性失语、经皮质混合性失语、完全性失语和命名性失语8种的分类法是被广为认可的。本文以此分类方法为理论基础,重点介绍了失语症患者在自发性言语、命名、复述、听觉理解、阅读、书写等方面的临床表现,以及如何通过相应测试考察失语症患者以上能力,从而对其进行鉴别和分类

  • 标签: 失语症分类 解剖学 命名 自发性言语
  • 简介:Objective:ToevaluateHighResolutionComputerTomography(HRCT)inthediagnosisofexternalearcanalcholesteatoma.Methods:Inthisretrospectivestudy,HRCTsof27patientswithexternalearcanalcholesteatomawerereviewed.Thechangesintheexternalearcanal,tympanicmembrane(TM),scutum,tympanumandmastoidweremeasuredandcategorized.Results:Fourteenpatientsshowednoormilddestructionintheexternalearcanal(stageIgroup).Eightpatientshadobviousenlargementintheexternalearcanal(stageIIgroup)butshowedlimiteddestructionsofthemastoidboneandnodamageofthetympanums.Fivepatientshadseriousdestructionofthemastoidboneanddamageofthetympanum(stageIIIgroup).AllpatientsinthestageIIIgroupshowedacompressionofmanubriumsandTMs,with3havingdamagesonossicularchain.BonedestructionoftheverticalsectionoffacialnervecanalwasdiscoveredinonecaseinthestageIIIgroup.Conclusion:HRCTcanprovidedetailinformationabouttheextentofexternalearcanalcholesteatoma.Suchinformationcanbeusedtoidentifyspecialsituationswithseriouscomplicationsandtodifferentiateexternalearcanalcholesteatomafrommiddleearcholesteatoma.

  • 标签: EXTERNAL EAR CANAL CHOLESTEATOMA COMPUTER TOMOGRAPHY
  • 简介:ObjectiveThestudyistoidentifythecarrierrateofcommondeafnessmutationinChinesepregnantwomenviadetectingdeafnessgenemutationswithgenechip.MethodsThepregnantwomeninobstetricclinicwithouthearingimpairmentandhearingdisordersfamilyhistorywereselected.Theinformedconsentwassigned.PeripheralbloodwastakentoextractgenomicDNA.Applicationofgeneticdeafnessgenechipfordetecting9mutationalhotspotofthemostcommon4Chinesedeafnessgenes,namelyGJB2(35delG,176del16bp,235delC,299delAT),GJB3(C538T),SLC26A4(IVS72A>G,A2168G)andmitochondrialDNA12SrRNA(A1555G,C1494T).Furthergenetictestingwereprovidedtothespousesandnewbornsofthescreenedcarriers.ResultsPeripheralbloodof430pregnantwomenweredetected,detectionofdeafnessgenemutationcarriersin24cases(4.2%),including13casesoftheGJB2heterozygousmutation,3casesofSLC26A4heterozygousmutation,1casesofGJB3heterozygousmutation,and1caseofmitochondrial12SrRNAmutation.18spousesand17newbornstookfurthergenetictests,and6newbornsinheritedthemutationfromtheirmother.ConclusionThecommondeafnessgenesmutationhasahighcarrierrateinpregnantwomengroup,235delCandIVS7-2A>Gheterozygousmutationsarecommon.

  • 标签: 基因突变检测 基因芯片 遗传性 耳聋 孕妇 应用
  • 简介:摘要目的探析前急救护理路径在脑卒中患者前急救的应用效果。方法选取我院收治的224例脑卒中患者为研究资料,将所有患者随机分为两组,每组112例。对照组给予常规前急救护理,观察组给予前急救护理路径,对比分析急救效果。结果观察组的死亡率(3.57%)、致残率(7.14%)均优于对照组(13.39%、24.11%),组间有显著差异(P<0.05);观察组从接诊到入院治疗的间隔时间优于对照组(P<0.05)。结论脑卒中患者前急救给予前急救护理路径可降低患者的致残率和死亡率,缩短接诊到治疗的间隔时间,提升患者的生存质量,值得在临床上进一步推广和应用。

  • 标签: 院前急救护理路径 脑卒中 院前急救
  • 简介:摘要消毒供应中心(CSSD)信息管理软件是我院信息化建设的一部分,在医院信息化建设占有很重要的地位,我院消毒供应中心信息管理软件系统是采用各区配置电脑,网络连接,文件共享的方式,实行物品信息的传递。系统应用结果表明该系统具有输入效率高、数据共享程度高等功能特点,改变了以前手工操作的管理模式,实现了计算机的一体化管理,大大提高了工作效率,加强了物资信息的计算机处理、存储、检索及利用,及时反馈了物资信息的统计数据。同时,该系统成本低,使用方便,能准确进行信息传递、数据统计、成本核算,便于管理者及时掌握物资的整体流转情况,避免了工作中信息逆流和纸质信息不便于存储的现象,有效地防止了医院交叉感染的发生,有力保障了临床一线灭菌物品的及时供应,减少了差错,提高了工作效率和管理水平。

  • 标签: 信息化管理系统 CSSD 应用
  • 简介:Aratmodelofchronictympanicmembraneperforationwasdevelopedtobeusedinthesearchofnewmaterialsforthesealingoftheseperforations.AlongitudinalstudywascarriedoutinratssubjectedtoincisionalmyringotomyfollowedbytheapplicationofmitomycinCaloneorwithdexamethasone.Ratswerecheckedatdays3,7,10,14andweeklythereafteruntilperforationclosure,forupto6months.Theadditionofdexamethasoneisakeycomponentinordertoobtainachronicopening.Myringotomiestreatedwithsalinehadameanhealingtimeof8.5days.At8weeks,between62.5%and77.7%oftympanicmembranestreatedwithmitomycinCanddexamethasoneremainedperforatedandat6monthsthisnumberfellto21.4%.Thistechniqueisabletomaintainmosttympanicmembraneperforationspatentforatleast8weeks.Thisratmodelisadequateforitsuseinpreclinicalortranslationalresearch.

  • 标签: ANIMAL model CHRONIC tympanic MEMBRANE PERFORATION
  • 简介:Objective:EvaluatingtheauditoryfunctioninpatientswithchronichepatitisCtreatedwithsofosbuvirandribavirin.Methods:Thisstudyinvolved80patientswithchronichepatitisCwhoagreedtoreceivesofosbuvirandribavirin.Allparticipantsweresubjectedtobaselineotologicalandaudiologicalassessmentjustbeforetreatment.Theaudiologicalassessmentincludedstandardpuretoneaudiometry,extendedhighfrequencyaudiometry,immitancemetryandotoacousticemissions(OAEs)(transientanddistortionproduct).Accordingtobaselinehearingthresholdmeasurements,thestudypopulationwasdividedinto2groups.Group1included42patientswithnormalhearingsensitivity(250e8000Hz),andGroup2included38patientswithsensorineuralhearingloss.After24weeksoftherapy,otologicalandaudiologicalassessmentswererepeatedandcomparedbetweenthetwogroupsandbeforeandaftertherapy.Results:Post-treatmenthearingthresholdevaluationshowednosignificantdifferencefrompretreatmentevaluationatalltestedfrequencies.Therewasnostatisticallysignificantdifferencebetweenpreandpost-treatmentotoacousticemissionsresults.Conclusion:TherapywithsofosbuvirandribavirininchronichepatitisChasnonoticeableeffectsoncochlearfunctions.

  • 标签: CHRONIC HEPATITIS C AUDITORY FUNCTIONS Otoacoustic
  • 简介:摘要目的分析个性化护理在急性心肌梗死患者前急诊护理的效果和价值。方法选取2013年12月~2014年12月我院接诊的急性心肌梗死患者60例为观察组,前急诊护理运用个性化护理,选取2010年12月~2011年12月我院接诊的急性心肌梗死患者60例为对照组,前急诊采用常规护理服务,对比分析两组患者的临床护理效果。结果观察组患者出诊反应时间、急救时间、入院时间以及急救成功率、急救诊断率、转运成功率和急诊满意程度均明显优于对照组,具有统计学意义(p<0.05)。结论在急性心肌梗死患者前急诊护理,个性化护理的运用可以提高临床急救的成功率、转运成功率、急救成功率和急诊满意度,缩短了出诊反应时间、急救时间以及入院时间,具有较为理想和显著的护理效果,值得临床推广和运用。

  • 标签: 个性化护理 护理 急性心肌梗死
  • 简介:摘要目的了解医院感染现患率,分析医院感染发生因素,改进预防控制措施。方法采取床旁调查和查阅运行病例和终末病历的方法,对2013、2014年相同日期住院患者进行医院感染现患率调查。结果二年共调查住院患者620例,实查率例数608例,实查率分别为97.86%和98.23%,医院感染现患率分别为5.11%和3.59%,略高于当月医院感染发病率(3.92%、2.97%),医院感染部位以下呼吸道(49.65%)为主,其次是泌尿道(21.33%)等。结论医院现患率调查有利于了解医院感染现状,及时发现医院感染日常监测工作存在的问题,采取有效措施降低医院感染率。

  • 标签: 医院感染 现患率 感染部位 抗菌药物
  • 简介:ObjectiveToinvestigatetheearlychangeofcochlearribbonsynapsesoninnerhaircellsinresponsetoaminoglycosideototoxicity.MethodsC57BL/6Jmicereceivedintraperitonealinjectionofgentamicin(100mg/kg/day),andtheapicalcoilorganofCortiwasexaminedonthe4th,7thand10thday(n=10).Litter-mateswithoutgentamicintreatmentservedascontrols(n=10).RIBEYEonthepresynapticmembraneandAMPAreceptorsonthepostsynapticmembranewerelabeledwithCtBP2orGluR2/3respectively.Threedi-mensionreconstructionwasconductedusingthe3DSMAX8.0software.ResultsTherewerenodisruptionsofouterorinnerhaircellsinallgroups.However,thenumberofribbonsynapsesoncochlearinnerhaircellsincreasedsignificantlywithin7daysaftergentamicinexposure(P<0.01),followedbyasignificantde-creaseafter7days.ConclusionDuringtheearlystageofaminoglycosideototoxicity,increasedpopulationofcochlearribbonsynapsesmayindicateasignificantdown-regulationofsynapticfunction.

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  • 简介:ObjectiveTostudycharacteristicsofhearinglossafterexposuretomoderatenoiseexposureinC57BL/6Jmice.MethodsMaleC57BL/6Jmicewithnormalhearingatageof5-6weekswerechosenforthisstudy.Themicewererandomlyselectedtobestudiedimmediatelyafterexposure(GroupP0),or1day(GroupP1),3days(GroupP3),7days(GroupP7)or14days(P14)afterexposure.Theirbeforeexposureconditionservedasthenormalcontrol.Allmicewereexposedtoabroad-bandwhitenoiseat100dBSPLfor2hours,ABRthresholdswereusedtoestimatehearingstatusateachtimepoint.ResultsABRthresholdelevationwasseenateverytestedfrequencyatP0(P<0.01).Elevationathigh-frequencies(16kHzand32kHz)wasgreaterthanatlowerfrequencies(4kHzand8kHz,P<0.05).FromP1toP14,ABRthresholdscontinuouslyimproved,andtherewasnosignificantdifferencebetweenP14andbeforeexposure(P>0.05).ConclusionThereisafrequencyspecificresponseto100dBSPLbroad-bandwhitenoiseinC57BL/6Jmice,withthehigh-frequencybeingmoresusceptible.HearinglossinducedbymoderatenoiseexposureappearsreversibleinC57BL/6Jmice.

  • 标签: 噪声暴露 等强度 小鼠 听觉功能 听力损失 高频率
  • 简介:“言语香蕉目前在听力学界被广泛地接受和使用,应用于听力诊断和筛查.助听器验配效果评估、人工耳蜗术前术后效果评估和聋儿康复等领域。早在1949年.Fant等人对“言语香蕉的来源和应用做了相关研究。他认为言语感知的先决条件之一就是言语信号需要有足够的部分在听阈之上。

  • 标签: 言语香蕉图 国内外 效果评估 助听器验配 听力诊断 聋儿康复
  • 简介:Objective:Todeterminewhetheranew-bornchildfromafamilycarryingadeafnessgeneneedscochlearimplantationtoavoiddysphoniabyscreeningandsequencingadeafness-relatedgene.Results:BothscreeningandsequencingresultsconfirmedthatthenewbornchildhadanormalGJB2genedespitethefactthatshehasabrothersufferingfromhearinglosstriggeredbyanallelicGJB2c.176del16mutation.WeclonedtheGJB2genesderivedfromtheirrespectivebloodgenomicDNAintoGFPfusedplasmidsandtransfectedthoseplasmidsintothe293Tcelllinetotestforgenefunction.WhilethemutatedGJB2gene(GJB2c.176del16)ofherdeafbrotherwasfoundtobeunabletoformthegapjunctionstructurebetweentwoadjacentcells,thebabygirl’sGJB2generanintonosuchproblems.Conclusion:ThescreeningandsequencingaswellastheGJB2genefunctiontestsinvariablyshowedresultsconsistentwiththeABRtestedhearingphenotype,whichmeansthatthechild,withanormalwildtypeGJB2gene,doesnotneedearlyinterventiontopreventherfromdevelopinghearinglossanddysphoniaatalaterstageinlife.

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  • 简介:目的分析听神经病患者耳蜗电图中-SP、AP的幅度,探讨该病患者-SP/AP比值增高的原因.方法用银球电极放置在鼓膜后下方,记录听神经病患者和正常人的耳蜗电,分别测量两组-SP、AP的幅度.结果听神经病患者-SP幅度与正常组无明显差异(P>0.05),而AP幅度两组存在极显著差异(P<0.001).结论听神经病患者-SP/AP比值增高的原因是由于AP幅度的明显降低而造成.

  • 标签: 听神经病 耳蜗电图 SP幅度 AP幅度 听力学检查
  • 简介:目的观察Nucleus24CA型人工耳蜗植入后电极阻抗、行为反应阈值(T-level,T级)及最大舒适级(C-level,C级)的变化规律,分析其内在联系,探讨其对术后调机的指导意义。方法对81例植入Nucleus24CA型人工耳蜗患儿,分别在术、术后1、2、6个月进行电极阻抗阈值测试,收集术后对应T、C值,并对其变化规律及相关性进行统计学分析。结果电极阻抗值术检测最低,术后1月开机最高,此后逐渐减低(P〈0.01);自蜗顶至蜗底各通道间电极阻抗值无显著差异(P〉0.05)。各电极通道T值、C值随术后时间延长逐渐增高(P〈0.05),并与电极阻抗值呈线性相关。结论测定电极阻抗值是评估人工耳蜗刺激电极状态的有效手段;术后2月应同时调试T值及C值,此后则应对C值进行重点调试。

  • 标签: 人工耳蜗 电极阻抗
  • 简介:目的用细胞学方法,分析线粒体DNA12SrRNA基因C1494T突变在氨基糖甙类抗生素聋发病机理的作用.方法从携有线粒体DNAC1494T突变的母系遗传性氨基糖甙类抗生素性耳聋的中国大家系选择部分成员,另外从遗传背景相同的正常中国人群选择对照个体,分别建立淋巴细胞系;并通过细胞融合技术,将淋巴细胞系的线粒体分别融合到缺乏线粒体DNA的p0206细胞,建立相应的转线粒体细胞系;家系成员与对照个体的淋巴细胞系和转线粒体细胞系,分别在不含/含有氨基糖甙类抗生素(巴龙霉素)的培养液培养,以倍增时间(doublingtime,DT)作为细胞生长特性的评价标准,通过计算在正常和含有氨基糖甙类抗生素的培养液倍增时间的比值,比较氨基糖甙类抗生素对细胞生长的影响.结果携有线粒体DNAC1494T突变家系成员较对照个体的淋巴细胞系的倍增时间比值平均增加了24%,但不同家系成员的细胞倍增时间比值的增加程度不同,自10%至50%不等;而当细胞核遗传背景相同后,家系成员较对照个体的转线粒体细胞系的倍增时间比值增长30%,并且来自不同表型的家系成员的细胞倍增时间比值基本相同.结论线粒体DNAC1494T突变可以造成细胞对氨基糖甙类抗生素的超敏性,但其效应要受到核基因的调控.

  • 标签: 巴龙霉素 细胞倍增时间 线粒体DNA(mtDNA)