Abstract
Objective To find a convenient and practical method for detection of myocardial viability by bio-electrical technology.Methods Eighteen experimental piglets were divided into 3 groups.The animals in group A were preserved for 12 h at 4 ℃,those in group B for 6 h at 15 ℃,and those in group C for 4 h at 25 ℃.Myocardial dielectric properties (tanδm) were detected every 5 min and adenosine triphosphate (ATP) content was tested every 30 min,then the correlation between them was discussed.Results The time in which ATP contents were down to 50％ was in the points of 4 h,2.5 h and 1.5 h in groups A,B and C respectively.And the tanδm values were 2.927,2.968 and 2.969 in 4 h,2.5 h and 1.5 h respectively.Tanδm was significantly related with myocardial ATP content ( r =0.664,P ＜ 0.01 ).Conclusion tanδm has a close relationship with ATP content,and it may be a convenient and practical method for detection of myocardial viability. Key words: Myocardial viability; Hypothermic preservation; Adenosine triphosphate
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