Background/Aims: Depending on the specific definition, acute kidney injury (AKI) occurs in 7–40% of patients undergoing cardiac surgery. Even small changes in serum creatinine (SCr) levels are associated with increased mortality after cardiac surgery. However, there are no current methods for preventing AKI after cardiac surgery. Erythropoietin (EPO) has been shown to elicit tissue-protective effects in various experimental models. In this pilot trial, we evaluated the effectiveness of EPO in the prevention of AKI after coronary artery bypass grafting (CABG). Methods: 71 patients scheduled for elective CABG randomly received either 300 U/kg of EPO or saline intravenously before surgery. AKI was defined as a 50% increase in SCr levels over baseline within the first 5 postoperative days. Estimated glomerular filtration rate (eGFR) was calculated from the Cockcroft-Gault equation. Results: Of 71 patients, 13 developed postoperative AKI: 3 of the 36 patients in the EPO group (8%) and 10 of the 35 patients in the placebo group (29%; p = 0.035). The increase in postoperative SCr concentration and the decline in postoperative eGFR were significantly lower in the EPO group than in the placebo group. Conclusions: In our small, pilot trial, prophylactic administration of EPO prevents AKI and improves postoperative renal function. These data are preliminary and require confirmation in a larger clinical trial.

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The development of AOF is a rare but lethal complication after TEVAR, being associated with the need for emergency TEVAR as well as mediastinal haematoma formation. The only durable and successful approach to cure the disease is radical oesophagectomy and extensive aortic reconstruction. These findings may serve as a decision-making tool for physicians treating these complex patients.

In this study, the rate of post-treatment thromboembolism was not significantly different among the treatment groups; however, operative treatment tended towards less post-treatment thromboembolism than other treatment groups.

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