Abstract:Background: The aim of this study was to evaluate the histological and immunohistochemical effects of levosimendan on liver injury induced by myocardial ischemia and reperfusion (I/R) in a rat model. Methods: Twenty-four male Wistar Albino rats were randomly divided into the four groups: Group C (Control, n = 6), Group I/R (n = 6), Group BI (I/R group treated with levosimendan before ischemia, n = 6), and Group AI (I/R group treated with levosimendan after ischemia, n = 6). Myocardial I/R was induced by ligation of the left anterior descending coronary artery for 30 min followed by two hours of reperfusion in I/R and I/R+Levosimendan groups. At the end of the study, liver tissue samples were obtained for histopathological and immunohistochemical examination. Results: Masson Trichrome staining revealed signifi cant hepatocyte degeneration and necrosis most marked in portal acinus Zone 3, especially around the central veins in Group I/R. Histopathological changes in Group AI were more similar to the changes in Group I/R. Milder hepatocellular degeneration was found in Group BI, when compared to groups I/R and AI. Immunohistochemical score was found to be signifi cantly higher in Group I/R compared to groups C, BI and AI (p < 0.0001). The scores in groups BI and AI were found to be similar (p = 0.068). Conclusion: Levosimendan ameliorates liver injury induced by myocardial IR, especially when administered before induction of ischemia (Fig. 9, Ref. 37). Text in PDF www.elis.sk.

In centres in which the neonatal ICU is inexperienced, balloon angioplasty is particularly recommended. In developing neonatal clinics, balloon angioplasty, when performed on patients at their earliest possible age, delays actual corrective operation to a later date, which in turn provides less risky surgical outcomes in infants who are gaining weight, growing, and do not have any haemodynamic complaints.