Cardioplegias are different pharmacokinetic solutions routinely used in cardiac surgery to protect the heart from ischemia and induce arrest. Various cardioplegia solutions (such as Bretschneider, del Nido, blood cardioplegia, crystalloid cardioplegia, St. Thomas) are used in clinical practice. There is no clear scientific data in the literature that demonstrates the superiority of one cardioplegia over the others. The choice of the appropriate cardioplegia depends on the surgeon's clinical experience and preference. In this study preferred the blood cardioplegia and del Nido cardioplegia, which are commonly used in clinic. Both cardioplegias have different advantages that contribute to their preference in clinical practice. Blood cardioplegia is an autologous cardioplegia that includes physiological buffer systems, allowing for heart nourishment and containing native antioxidant systems. However, the need for repeated doses every 20 minutes after the initial application creates a disadvantage in terms of surgical comfort. On the other hand, del Nido cardioplegia is preferred by surgeons in complex cases due to its long application intervals. The adequacy of a single dose for up to 90 minutes after the initial application creates an advantage in terms of surgical comfort and surgical integrity. However, the content being predominantly electrolyte-based, containing 1:4 ratio of autologous blood, and the extended time of a single dose are disadvantages compared to blood cardioplegia in terms of heart nourishment and protection from ischemia. In addition to these different usage scenarios, the myocardial protective effects of cardioplegias on cellular redox homeostasis are also among the current research topics. Thesis project can contribute to the current literature and clinical practice on the cardioprotective advantages of cardioplegia solutions and the reasons for their preference in surgery.
Age range
18 Years – 75 Years
Sex
ALL
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Evaluation of the myocardial protective effects of different cardioplegia solutions through oxidative stress and redox signaling molecules.
Timeframe: 1-7 days