Custodiol-N, the novel cardioplegic solution reduces ischemia/reperfusion injury after cardiopulmonary bypass

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• 作者：Gábor Veres ; Tamás Radovits ; Béla Merkely…
• 关键词：Cardiopulmonary bypass ; Myocardial protection ; HTK ; Cardioplegic solution ; Custodiol ; Ischemia ; reperfusion injury
• 刊名：Journal of Cardiothoracic Surgery
• 出版年：2015
• 出版时间：December 2015
• 年：2015
• 卷：10
• 期：1
• 全文大小：675 KB
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• 刊物主题：Cardiac Surgery; Thoracic Surgery;
• 出版者：BioMed Central
• ISSN：1749-8090

文摘

Backgrounds On the basis of Custodiol preservation and cardioplegic solution a novel cardioplegic solution was developed to improve the postischemic cardiac and endothelial function. In this study, we investigated whether its reduced cytotoxicity and its ability to reduce reactive oxygen species generation during hypoxic condition have beneficial effects in a clinically relevant canine model of CPB. Methods 12 dogs underwent cardiopulmonary bypass with 60?minutes of hypothermic cardiac arrest. Dogs were divided into 2 groups: Custodiol (n--) and Custodiol-N (n--) (addition of L-arginin, N-α-acetyl-L-histidine and iron-chelators: deferoxamine and LK-614). Left ventricular hemodynamic variables were measured by a combined pressure-volume conductance catheter at baseline and after 60?minutes of reperfusion. Coronary blood flow, myocardial ATP content, plasma nitrate/nitrite and plasma myeloperoxidase levels were also determined. Results The use of Custodiol-N cardioplegic solution improved coronary blood flow (58?±-?ml/min vs. 26?±-?ml/min) and effectively prevented cardiac dysfunction after cardiac arrest. In addition, the myocardial ATP content (12,8?±-,0?μmol/g dry weight vs. 9,5?±-,5?μmol/g dry weight) and plasma nitrite (1,1?±-,3?ng/ml vs. 0,5?±-,2?ng/ml) were significantly higher after application of the new cardioplegic solution. Furthermore, plasma myeloperoxidase level (3,4?±-,4?ng/ml vs. 4,3?±-,2?ng/ml) significantly decreased in Custodiol-N group. Conclusions The new HTK cardioplegic solution (Custodiol-N) improved myocardial and endothelial function after cardiopulmonary bypass with hypothermic cardiac arrest. The observed protective effects imply that the Custodiol-N could be the next generation cardioplegic solution in the protection against ischemia-reperfusion injury in cardiac surgery.