右冠状动脉左房后支变异一例

右冠状动脉左房后支变异一例 四川解剖学杂志2003年第儿卷第2期 【参考文献】 E13Agrep,PrestonGM,SmithBI,eta1.AquaporinsCHIP:thearche- typa1molecularwaterchanne1.AmJPhysiol1993}34:463 E21DibasAI.MiaAJ,YorioT.Aquaporins(waterchanne1):rolein vasopressin—activatedwatertranspo.ProcSocExpBiolMED 1998l219(3):183 [-33NielsenS,KwonTH.PhysiologyandPathophysiologyofrenal aquaporinsJAmSocNephrol1999;10:647 [4]HatakeyamaS,YoshidaY,TaniT,Koyamaetal:Cloningofanew aquaporins(AQP10)abundantlyexpressedinduodenumandjeju— nUlT1.BioehenBioplysResCommun2002;287(4):814 ES]AgreP.NielsenSTheaquaporinfaminlyofwarerchannelsinkid- ney.Nephroloyin1996;17(7):409 [6]NielsenS,FrokiaerJ.marplesD,eta1.Aquaporinsinthekidney: frommoleculestomedicine.PhysiolRev2002;82(1):205 [7]L~kiM哐.PressleyTAquapoHnmediatedwater--fluxasat getfordiureticdevelopmentSeminNephrol1999;19(6):533 [8]OhshiroK.YaoitaE,YoshidaY,eta1.Expressionandimmunolo- ealizationofAO26inintercalatedcellsoftheratkidneycollection duet.ArchHistolCytol2002;64(3):329 [93FrokiaerJ,MarplesD,KnepperMA,eta1.Pathophysilologyof a0uaporin--2inwaterbalancedisorders,AmJMedSci,1998}316 (5):291 [10]KlussnmE,Marick,WiesenerB,eta1.ProteinKinaseAancho- ringproteinsarerequiredforvasopressin--mediatedtranslocation ofaquaporin——2intocellmembranesofprincipalcellsJBiol Chen,1999;274(8):4934 ~l1]YangB.MaT,VerkmanASErythocytewaterpermeabilityand renalfunctionindoubleknoekoutmicelacidngaquaporin--1and aquaporin--3.JBiolChem2001l276(1):624 [12]BiehetDG.Nephrogeniediabetesinsipidus,AmJMed,1998;105 (5):431 [13]JungJS,LeeRH.KohSH,eta1.Changesinexpressionofsodium cotransportersandaquaporin--2duringisehemia--repeHusionin— juryinrabbitkidney.KenFail2000}22(4):40T ['14]KwonTH.FrokiaerJ.KnepperMA,eta1.ReducedAQP1—2and 一 3levelsinkidneysofratswithCRFinducedbysurgicalreduc- tioninrenalmss.AmJPhysiol1998l275(5pt2):724 [15]SchrierRW.CadnapaphehaiMAUmenishiFwater—losingand waterretainingstates:roleofwaterchannelsandvasopressinre— cepterantagonists.HeartDis2001l3(3):21O, [16]DevuystQRoleofchloridetransportersandwaterchannelsin autosomaldominantpolyeystiekidneysBuUMernAeadRMed Belg1999;154(10--12):357 ? 变异? 右冠状动脉左房后支变异一例 曾昭明杨朝鲜肖洪文古元 (泸州医学院解剖学教研室646000) 在解剖一成年男尸心脏时,发现其右冠状动脉的 左房后支变异,现如下:右冠状动脉起于主动脉 右窦中部,始处直径4.32mm,沿冠状沟内走行至房 室交点处分为左室后支和后室问支.左室后支起始 处直径为2.20mm,起始后在冠状沟内发出四支至左 心室膈面,另有一支发出后分为两支,分别布于左心 房和左心室膈面.左室后支分出的左房后支距左室 后支起始处为26.68mm,左房后支起始处直径为 1.78mm,发出后沿左心房后面上行15.02mm后转 向右侧水平行至左肺下静脉口下方,继而绕左肺下, 上静脉根部至左心房上缘,再经上腔静脉和右肺上静 脉之间到达右心房上部,沿途发出分支营养左心房. 该左房后支全长157.54mm,几呈框形绕左心房边缘 一 圈(见附图),在有关心脏血管的籍中未见报道. 此心脏左冠状动脉起始处直径为4.30mm,其分 出的旋支起始处直径为3.04mm,旋支较短,终于肺 面近左缘处,其所有分支均未达左心室膈面;旋支仅 发一细支到左心耳根部,未见有其余的营养支分布于 左心房.因此,从结构和功能的意义上来说,此变异 的左房后支代偿了左冠状动脉对左心房供血的不足. 附图(图中箭头所指为变异的左房后支)