Effect of different solution on hypothermic preservation of rat hearts / 中国病理生理杂志

ABSTRACT

AIM: To compare the effects of histidine-tryptophan-ketoglurate(HTK)solution, University of Wisconsin(UW)solution and St.Thomas(ST) Cardioplegia solution Ⅱ on hypothermic preservation of isolated rat hearts. METHODS: Isolated hearts from male Wistar rats were mounted on a Longendorff apparatus to estimate left ventricular end-diastolic pressure(LVEDP),left ventricular developed pressure(LVDP), rate of change of left ventricular pressure(d p /d t max ,d p /d t min ) and coronary flow(CF).Twenty-four rats were randomly divided into three groups HTK group, UW groups and ST group.They were arrest and stored at 4℃ in each preservation solution for 6 hours. Following storage, they were reperfused and postpreservative function was measured to assess cardiac functional recovery. Frozen samples were analyzed for concentration of adenosine triphosphate. RESULTS: The concentration of adenosine triphosphate in three groups was significantly different( P