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1、二尖瓣环精确量化成形术的临床研究ClinicalResearchofExactQuantitativeAnnuloplastyoftheMitralValveAbstractObject:1.Innormalhuman,anteriormitralannulusisaboutonethirdofthewholeannulus,andthemitralannulusappearsnearlyelliptical,whichisduetothechangeofCC（commissure-commissure）andSL（septal-lateral）di
2、mensions.IftheradioofSL/CCincreased,themitralannulusbecomeslightlymorecircular,andiftheradiodecreased,itwillbecomemoreelliptical.Ingeneral,meanoftheradiois0.72±0.02.Itwasnotbeenreportedabouttheradioofanteriormitralannulus、posteriormitralannulusandSL/CCofChinese.Oneofourpurposei
3、stounderstandtherelationofanteriormitralannulusandposteriormitralannulusandtheshapeofmitralannulusinChinese,thenwecandobetterinexactquantitativeannuloplastyofthemitralvalve.2.Therearesomelimitationsaboutmitralvalverepairatpresent,especiallylackexactquantitativeguidelineinmitral
4、valveannuloplasty,whichispronetodamagemitralannulusarea.Atpresent,alloftheringsandobturatorshaveadefect,thatis,absentthecontinuityofallkindsofmodel,anditwillresultinerrorinmitralvalveannuloplasty.Usually,surgeonsliketochooseringsthatisminortomitralannulus,thentheycaneliminatemi
5、tralregurgitation,butiftheydoso,themitralannulusareawouldbedamaged.ThisresearchdesignaobturatorforChinesebymitralvalveshapeofChinesepeople,whichovercometheflawoftheobturatorsusedinalloftheworld,canmeasuretheanteriormitralannulusexactquantitatively,andtheringisalsodesignedforthe
6、useofobturator.3.weusetheobturatorinclinicalworks,andperformexactquantitativeannuloplasty.Subjectsandmethods:1.Toanatomizemitralvalveandanalyseitsshapecharacter.Therehave50casesfreshheartsfrombody,wemeasurethedimensionsofanteriormitralannulus,posteriormitralannulus,SL,CCbycalip
7、ers,andcalculatetheradioofthem.2.Bytheradioofanteriormitralannulusandposteriormitralannulus,SLandCCofChinese,wedesignaobturatorformitralannuloplastywhichaccordwiththemitralvalveshapeofChinese.Theringisdonebymini-sartorius,Goxe-tex７二尖瓣环精确量化成形术的临床研究andTeflonmaterial.3.Wechoose24c
8、asesofpatientswithmitralvalvedegenerativediseasealongt
