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辽吉冰凉花总甙(APAW)1.0mg/kg iv,能使麻醉家兔正常心脏的P-dP/dt环体面积(LO),LV-dP/dt_(max),Vpm及LVSP比药前增大,HR减慢。APAW和冰凉花(AAR)及毒毛旋花子甙K(SK)一样,能明显改善衰竭兔心的心功能。静脉恒速输入0.5 mg/ml APAW,25min后,心衰家兔的LVSP,LV—dP/dt max,LO均明显回升,LVEDP降低,t-dP/dt max缩短。三种强心甙的最大强心效力无显著性差异。但APAW的治疗宽度和治疗指数均较AAR和SK为大,而AAR和SK间则无显著性差异。
The results showed that P-dP / dt (LV), LV-dP / dt max, Vpm and LVSP of normal rabbits Increase, HR slow down. APAW, like the cold-blooming flower (AAR) and the venomous spinosad K (SK), markedly improves cardiac function in failing rabbit hearts. After intravenous infusion of 0.5 mg / ml APAW for 25 min, the LVSP, LV-dP / dt max and LO of rabbits with heart failure significantly increased, LVEDP decreased and t-dP / dt max shortened. Three kinds of cardiac glycosides maximum cardiac effect no significant difference. However, the treatment width and therapeutic index of APAW were larger than those of AAR and SK, but there was no significant difference between AAR and SK.