简介:
简介:AJ-CONVEXSUBSETWHICHISNOTPSH-CONVEXBuShangquan(步尚全)(Departmentofappliedmathematics,TsinghuaUniversity,Beijing100084,China)Abs...
简介:摘要目的探讨输尿管内留置双J管的临床应用效果。方法回顾性分析522例侧上尿路疾病使用输尿管支架,留置时间2~24周,平均4.5周;观察置管过程中及留置双J管期间,出现输尿管反流、膀胱刺激征、血尿、拔管困难、双J管滑脱、漏尿及感染、异物排斥反应等;置管后腹部平片或B超复查522例侧双J管位置正常,对比留置管前后肾功能值、肾输尿管积水以及肾输尿管切口漏尿情况。结果双J管具有到良好的内引流尿液及支撑扩张输尿管的作用,67例留置双J管期间出现输尿管反流性腰痛、尿痛、膀胱刺激征和血尿,对症抗炎治疗后消失,4例开放性手术患者出现切口漏尿,3~5天后自行停止;所有置管患者顺利拔管,复查肾功能得到改善,肾积水减轻。未出现双J管上缩堵塞输尿管及双J管滑脱进入膀胱。结论所有肾输尿管手术均应放置双J管,输尿管留置双J管操作简便、引流效果好、并发症较少,能有效防止术后肾输尿管漏尿、输尿管狭窄,缩短患者住院时间、降低医疗费用。
简介:‘JournaloftheChineseRareEarthSo-ciety’hasbeenpublishedinChinesewithEnglishabstractssince1983.Ithasexpeditedthedevelopmentofrareearthresearch,technologyandapplicationsinChina,promotedtheacademicexchangeathomeandabroad.Inordertomakeitmoreaccessibletoforeignscientists,twoeditions(ChineseandEnglish)willbepublished,startingfromVolume8,1990.TheEnglishVersionhasfourissuesan-nually,reportingoriginalresearchesintheformofarticles,notesandcommuni-cations.AnindexofrareEarthbiblio-graphywillbeincludedineachissue.Mini-reviewsontopicsofcurrentin-terestandbriefintroductionofrareearthresearchinstitutes,laboratories,Factories,companiesanddistinguished
简介:Jjack千斤顶,液压缸JACVjetaircontrolvalve(涡轮增压发动机)空气喷射控制阀J/Bjunctionblock(box)接线盒J/BLKjunctionblock接线盒JCjointcompound密封剂JIFjiffy停车架jiffytools全套专用工具JKjack千斤顶,液压缸JKTjacket套,壳,罩JOjoborder工作次序JPEjumper棘爪,跳线JPTjetpipetemperature排气管温度JSAEJapaneseSocietyofAutomotiveEngineering日本汽车工程学会JUNCjunction接合处,连接点,连接