InterventionalTherapywithTwoBranchVascularOcclusionwithLeftMainCriticalStenosisYANGChengmingDapinghospital,Thirdmilitarymedicaluniversity,Chongqing.Man,78yearsNohypertension,diabetes,hyperlipidemia,andsmokinghistoryChronicbronchitisandemphysemaChesttightnessmorethan1year,Aggravating7days.BP120/75mmHg,ECG:Sinusrhythm,80bpm,STⅡ、Ⅲ、avF、I、avL、V5、V6↓。EF45%ClinicalDataCAGPCI(first)AL0.75,Runthrough,MaverickAweekafter(second)Excel3.0*28mm讨论Thiscasewascomplex,difficultybiggerlesions.AccordingtotheECGandDSA,RCAandLCXwastheonsetofcriminalslesions,becausethepatientage,pulmonaryfunctionandcardiacfunctionwaspoor,familiesdoesnotundergoingCABG,requiredtoPCI.PCIorderwastodealwiththecriminalslesions-RCA,Forfurtherprocessingleftcoronarylesionscreatedconditions.Twoplacebifurcatelesions,LADadoptedthemainbranchvascularinsertingastent,LMusedthemini-Crushtechnology,paralleledtokisstheballoonexpansion,andacquiredbetterclinicaloutcomes.