简介：Extensiveaneurysmsinvolvingtheascendingaorta,aorticarch,andthedescendingaortastandasatherapeuticdilemmainsimultaneousmanagementofmultiplesitesofpathologyoftheaorticarchandthedescendingthoracicaorta.Wesystematicallyreviewedaboutliteraturesofstentedelephanttrunkoperation(SET)identifiedthroughsearchesoftheelectronicdatabasesEMBASEandMedline,andaimedtosummarizestudiesofpatientsundergoingSETforextensiveaneurysms.Since1996,KatoMintroducedahybridtechniquebyusingstentedgraftimplantationtothedescendingaortafortreatmentofthoracicaorticaneurysmordissection.Ithasbeendescribeagoodoptionforextensivethoracicaorticaneurysmsandinafashionsimilartotheelephanttrunktechnique.

简介：目的：观察电针不同穴位对脑梗死偏瘫患者脑电的近期影响。方法：将脑梗死患者按2：1比例随机分为电针神经干组和常规电针组，分别予以针刺神经干及针刺常规穴位治疗，每目治疗1次，治疗14次后进行疗效评定。结果：电针神经干组较常规电针纽疗效好，近期脑电差异具有统计学意义（P〈0．05）。结论：电针神经干可明显改善偏瘫肢体的神经功能缺损及脑功能状况，疗效优于常规电针组。

简介：无

简介：无

简介：AbstractBackground:Aneurysm of basilar perforator was rarely reported in the literature. It is difficult to treat due to its small size and deep-seated location. Excessive treatment may cause complications that resulted from ischemic events of parent perforators. Therefore, it is important to make clinical strategy for such patients to improve the prognosis.Case presentation:One case, who presented as spontaneous subarachnoid hemorrhage, despite the negative result in computed tomography angiography firstly, was diagnosed angiographically as a ruptured aneurysm of the basilar perforator. A good clinical outcome of the case was achieved during the follow-up after conservative observation for 2 months, as well as the disappearance of previous lesion from angiography.Conclusions:Aneurysm located at perforator of basilar trunk was rare and difficult to treat. Conservative observation for certain cases with periodic angiography follow-up was considered in order to prevent the patients from potential iatrogenic effects.

简介：

简介：BACKGROUND:Thestellateganglionblock(SGB)playsaprotectiveroleinfocalcerebralischemia/reperfusioninjury.ThehumanSGBcanbesimulatedbytransectionofthecervicalsympathetictrunk(TCST)inrats.OBJECTIVE:ToobservetheeffectsofTCSToninduciblenitricoxidesynthase(iNOS)levelsandcerebralinfarctvolumeinthehippocampusofratswithcerebralischemia/reperfusioninjury,andtoanalyzethemechanismofaction.DESIGN,TIMEANDSETTING:Acompletelyrandomized,controlled,neuropathologicalexperimentwasperformedattheInstituteofNeurologicalDisease,TaiheHospital,YunyangMedicalCollegebetweenMarchandSeptember2006.MATERIALS:Atotalof93Wistarrats,aged17-18weeks,ofeithergender,wereusedforthisstudy.2,3,5-triphenyltetrazoliumchloridewaspurchasedfromChangshaHongyuanBiologicalReagentCompany,China.RabbitiNOSantibodyandgoatanti-rabbitIgGantibodyweretheproductsofWuhanBosterBiologicalReagentCo.,Ltd.,China.METHODS:Tenratswererandomlyselectedforthesham-operatedgroup.Cerebralischemia/reperfusioninjurywasinducedbymiddlecerebralarteryocclusion(MCAO)usingthesuturemethodintheremainingrats.Fortysuccessfulratmodelswererandomlyandequallydividedintothefollowingtwogroups:(1)TCSTgroup:subsequenttoTCST,MCAOwasperformedfor2hours,followedby24hoursreperfusion;(2)modelgroup:ratsunderwentexperimentalproceduressimilartotheTCSTgroup,withtheexceptionofTCST.Ratsinthesham-operatedgroupweresubjectedtoexperimentalproceduressimilartothemodelgroup;however,thethreadwasonlyintroducedtoadepthof10mm.MAINOUTCOMEMEASURES:Following24hoursofreperfusion,functionalneurologicaldeficitswerescored.BraintissuesectionsfromtenratsofeachgroupwereusedtomeasurecerebralinfarctvolumebyTTCstaining.HippocampaltissuesectionsofanadditionaltenratsfromeachgroupwereusedtodetectiNOSlevelsusingthestreptavidin-peroxidaseimmunohistochemis

简介：BACKGROUND:Stellateganglionblock(SGB)playsaprotectiveroleonthebrain,buttheprecisemecha-nismofactionisnotclear.OBJECTIVE:TosimulateSGBbytransectionofthecervicalsympathetictrunk(TCST)andtoinvestigatetheTCSTeffectsonchangesincerebralinfarctvolumeandoxygenfreeradicallevelsinratswithfocalcere-bralischemia/reperfusioninjury.DESIGN,TIMEANDSETTING:AcompleterandomizedcontrolanimalexperimentwasperformedattheInstituteofNeurologicalDiseasesofTaiheHospital,YunyangMedicalCollegefromFebruarytoDecember2005.MATERIALS:Atotalof101healthyWistarrats,weighing280–320g,ofbothgenders,aged17–18weeks,wereusedinthisstudy.2,3,5-triphenyltetrazoliumchloride(TTC)waspurchasedfromChangshaHongyuanBiologicalCompany.Superoxidedismutase(SOD),malondialdehyde(MDA)andnitricoxide(NO)assaykitswereprovidedbyNanjingJianchengBioengineeringInstitute.METHODS:RatswererandomlydividedintoaTCSTgroup,amodelgroupandashamoperationgroup.Successfulmodelswereincludedinthefinalanalysis,withatleast20ratsineachgroup.AfterTCST,ratmodelsoffocalcerebralischemia/reperfusioninjurywereestablishedintheTCSTgroupbyreceivingmiddlecerebralarteryocclusion(MCAO)bytheintraluminalsuturemethodfor2hours,followedby24hoursofreperfusion.Ratmodelsoffocalcerebralischemia/reperfusioninjuryweremadeinthemodelgroup.Ratsintheshamoperationgroupunderwentexperimentalproceduresasforthemodelgroup,threadingdepthof10mm,andmiddlecerebralarterywasnotligated.MAINOUTCOMEMEASURES:BraintissuesectionsoftenratsfromeachgroupwereusedtomeasurecerebralinfarctvolumebyTTCstaining.BraintissuehomogenateofanothertenratsfromeachgroupwasusedtodetectSODactivities,MDAcontentsandNOlevels.Ratneurologicalfunctionwasassessedbyneu-robehavioralmeasures.RESULTS:CerebralinfarctvolumewasbiggerinthemodelgroupthanintheTCSTgr

简介：膜技术是建立在高分子材料基础上的新兴科学技术,是混合物质在通过半渗透膜时达到机械性分离的过程。实施膜技术的必要条件是压强梯度和势能梯度。膜的两面的压强差是分离过程的推动力,水的电渗析处理是以电力作为膜分离过程的推动力。

简介：

简介：

简介：

简介：作者在1162例患者皮试中,300例用酒精消毒,862例未用酒精消毒,直接在皮肤上作试验,进行对比观察,结果均未发生感染。说明:皮试时,免用酒精消毒,在一般情况下是可行的,不仅提高了皮试的准确程度,排除病人对酒精过敏的干扰,而且节省了时间、敷料和酒精,效果满意。如患者手脏,则需用水洗净后再作皮试。表1

简介：摘要放射技术是一种依据物理学原理所逐渐发展起来的技术手段，而医学影像技术则是医学物理不可或缺的组成部分，该技术是通过物理学原理及物理学概念发展起来的一种技术手段。其中，医学影像技术主要包括传统X线、超声、MRI、CT、手术摄影和电子内窥镜等影像信息，这些技术手段是对人体内部各个组织、功能以及诊断疾病、脏器形态的重要方法。本文针对医疗卫生事业的发展，深入的对放射技术及医学影像技术进行了探究，旨在促进医疗设备数字化的不断完善。

简介：摘要：现阶段，随着科学技术的迅猛发展，在医学领域相关技术和设备有了不断的创新和升级，为医疗事业的良性发展做出了极大的贡献，其中，放射医学技术与医学影像技术是特别典型的创新技术，在临床治疗过程中得到有效应用，为临床诊断和治疗提供了巨大的帮助有十分显著的促进作用，对于许多疑难杂症的治疗都开辟了全新的路径。由此，本文有针对性的探讨和分析放射技术与医学影像技术的相关内容，希望本文的分析能够为同行提供一定的参考。

简介：摘要目前，医学影像学更新速度非常快，放射技术也取得了较大发展，新型医疗技术逐渐被引入，为临床疾病的诊断与治疗提供了可靠依据。伴随医学影像设备的逐步发展，MRI（核磁共振）、CT技术、DSA、DR等设备在临床中发挥了重要作用，影像技术有了更大的发展空间，分子影像学、放射学开展后，影像学检查的重要性更加凸显。

简介：摘要目的总结应用微创技术拔除智齿的技术。方法选择需拔除的80例患者的智齿，随机分为两组，分别采用微创法和凿劈法拔除患牙，记录两种方法拔牙时间、术中不适、术后反应、创口愈合情况。结果平均拔牙时间实验组18.2min，对照组24.1min，实验组明显短于对照组（P＜0.05）。实验组术后严重疼痛及严重水肿发生率均明显低于对照组（P＜0.05）。即两组相比较微创法比凿劈法拔牙时间缩短，术中不适、术后反应较轻，创口愈合情况较好。结论微创技术拔除智齿，减轻了患者恐惧、不适感，创伤小，拔牙时间缩短，术后反应小，拔牙创口愈合快，值得临床上推广使用。

简介：摘要目的探讨直接数字X摄影技术技术与传统X线摄影技术技术在胸椎诊断中的应用效果。方法采用影像学资料调查法，对我院胸椎骨折和病变的直接数字X摄影技术技术资料进行调研，对同时行传统X线摄影技术技术患者资料进行重点选定。结果此次高危人群共369例，临床病理学结果显示，早胸椎骨折和病变数156例，直接数字X摄影技术患者筛查出151例，占96.79%，传统X线摄影技术技术筛查出患者124例，占79.49%。结论直接数字X摄影技术诊断胸椎骨折和病变价值确切，明显优于传统X线摄影技术，且具有较高的诊断正确率，值得临床推广应用。

简介：悲观性格可使人易患痴呆症美国科学家最近的一项最新研究显示,持悲观厌世、焦虑和沮丧等消极情绪的人,可能比态度积极的人更容易患痴呆症。进行这项研究的是美国明尼苏达州罗切斯特的梅奥诊所的神经精神病研究专家。专家们研究了当地在1962年至1965年间的3500人的标准性格测试的结果。之后,在2004年他们又走访了这些受试者或是他们的家人。结果研究人员发现,在接受测试者中,那些在“悲观厌世”方面得分高的人在30至40年后患痴呆症

简介：骨髓造精子女性有望单性生育；专家发现与节段性回肠炎有关的基因；美科学家研究发现：测血压可以预知中风；揭示胃癌转移之谜；心力衰竭发病机制有新认识。