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1、心先安对充血性心力衰竭患者左室收缩功能的影响及机制的初步探讨心肺血管病杂志1999年第4期第18卷临床论著作者:刘英明杨晔徐洪涛唐朝枢吴旭辉石湘云单位:上海第二军医大学(200433)关键词:心先安;心力衰竭;心肌细胞;环磷酸腺昔;乳酸脱氢酶摘耍为研究心先安对充血性心力衰竭患者左室收缩功能的影响及其机制,采用超声心动图法对患者治疗前后的左室收缩功能作了评定,并观察了心先安对培养乳鼠心肌细胞内环磷酸腺昔(CAMP)及乳酸脱氢酶(LDH)漏出的影响。34例病人随机分成2组:常规治疗组和心先安治疗组,疗程均为1周。治疗后心先安组LVEDD缩短(从63
2、.9±10.5到59.0±11.6mm,P<0.01),LVESV减小(从139.7±29.0到lM.2±23.0ml,P<0.05),LVEF(%)提高(从38.9±12.3到45.7+14.5,P<0.01)SV>CO、Cl增加1(分别从61.7±22.5到85.1±26.3ml,从5.2±1.6到6.6±2.41/min,从2.6±0.4至lj4.0±l.ll/min/m2,均为PV0.05)。常规治疗组治疗前后的改变无统计学显著意义。心先安能增加培养的乳心鼠肌细胞内CAMP浓度,呈剂量依赖性,并能减少缺氧/复氧损伤心肌细胞LDH的漏出,
3、亦呈剂量依赖性。结果显示,心先安能改善心力衰竭患者的左室收缩功能,其机制可能与升高细胞内CAMP浓度、保护缺氧受损的心肌细胞有关。TheEffectsandMechanismsofMeglumineCyclicadenylateonLeftVentricularSystolicFunctioninPatientswithCongestiveHeartFailureLiuYingming’YangYe,XuHongtao,etal.TheSecondMilitaryMedicalUniversity,Shanghai(200433)Abstrac
4、tInordertostudytheeffectsofmegluminecyclicadenylate(MCA)onthesystolicfunctionofleftventricleanditsmechanismsinpatientswithcongestiveheartfailure,theleftventriicularsystolicfunctionwasmeassuredwithechocardiographybeforeandaftertreatment’effectsontheconcentrationofcyclicadenos
5、inemonophosphate(cAMP)andleakageofintracellularlactatedehydrogenase(LDH)inculturedneonatalratcardiomyocyteswereinvestigated.Thirty-fourpatientswereinvolvedinthisstudyandrandomlyassignedtotwogroups:(l)theroutinetherapygroup;(2)theMCAtherapygroup,bothgroupsweretreatedforonewee
6、k.LVEDD(mm)shortedfrom63.9±10.5to59.0±11.6(P<0.01)/LVESV(ml)decreasedfrom139.7±29.0to112.2±23.0(P<0.05),LVEF(%)elevatedfrom38.9±12.3to45.7±13.5(P<0.01),SVCOCIallincreased(from61.7土22.5to85.1+26.3ml.from5.2土1.6to6.6±2.4l/min,from2.6+0.4to4.0±l.ll/min/m2respectively,allP<0.05)
7、inMCAgroup.Thechangesinroutinetherapygroupwerenosignificance.MCAincreasedtheconcentrationofintracellularcAMPinaconcentratiodependentmannerandloweredtheleakageofintracellualrLDHinanoxia/reoxygenationinjurygroupalsoinaconcentration・dependentmanner.TheresultsindicatedthatMCAcou
8、ldimprovetheleftventricularsystolicfunctioninpatientswithcongestiveheartfai