简介：BackgroundProstheticmitralvalvereplacementisacommonsurgicaltreatmentofmitralvalvedisease.Completevideo-assistedmitralvalvereplacementrepresentsthecontemporaryminimallyinvasivecardiacsurgeryinvalvediseasesurgicaltherapy.Inthefieldofminimallyinvasivecardiacsurgery,thesuccessoftheoperationislargelydependingonsurgicalincision,italsoreflectsthesurgeon'stechniquelevel.MethodFromFebruary2010toFebruary2013,80casesofcardiacpatientswithmitralvalvepathologicalchangesinourdepartmentwhohadreceivedsurgicaltreatmentofcompletevideo-assistedmitralvalvereplacementwererecruited,theyweredividedintotwogroupsaccordingtothesurgicalincision:midclaviculargroup(Mgroup,n=50)andparasternalgroup(Pgroup,n=30).Theclinicaldatawererecordedincluding:cardiopulmonarybypasstime,aorticclampingtime,volumeofthoracicdrainageafteroperation,ICUtrachealintubationtime,postoperativedaysofhospitalstayandtimeforobservingthepostoperativecomplications.Thecomparisonbetweentwogroupswasperformedusingt-testanalysis.ResultBothMGroupandPGrouphadfavorablesurgicalview,therewerenoemergencysituationofredomediansternotomyduringinitialoperativeperiodorintraoperativedeath,nopericardialtamponade,noinfection,andnootherseriouspostoperativecomplications.Whereas,therewere2casesofredooperationforstanchbleedinginMGroupand1caseofperivalvularleakageinPGroup.Nevertheless,3monthslater,theresultofreexamineshowedthattheperivalvularleakagehadvanished.Theclinicaldatawasshownasfollow(MGroupvs.PGroup):cardiopulmonarybypasstime(90.2±28.7vs.87.3±24.5min,P>0.05),aorticclampingtime(65.2±17.4vs.68.6±21.9min,P>0.05),1stdayvolumeofthoracicdrainageafteroperation1(75.8±35.6vs.53.2±25.6mL,P>0.05),ICUtrachealintubationtime(9.6±3.4vs.8.4±4.5hours,P>0.05),postoperativedaysofhospitalstay(7.3±2.2v