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Frequency of renal dysfunction in cardiac surgery patients and its effect on outcome

K. Zakon, V. Romanova, K. Tverdohlib
Ukrainian Journal of Nephrology and Dialysis pp 40-47; doi:10.31450/ukrjnd.4(60).2018.06

Abstract: The purpose of this study was to define the frequency of renal dysfunction, including acute kidney injury (AKI), in cardiac surgery patients and its effect on outcome. Materials and methods. Patients 18 years old or older underwent cardiac surgery were included in the study. AKI and chronic kidney disease (CKD) was defined and staged according KDIGO 2012 guidelines. Glomerular filtration rate (GFR) was calculated with CKD-EPI formula. Clinical, laboratory and instrumental investigations were performed to all patients. As well, continuous hemodynamic monitoring was performed in postoperative period. Statistical analysis was conducted with SPSS for Windows v. 17.0.0. Results. 239 patients (170 (72,8 %) – male, 65 (27,2 %) – female) underwent cardiac surgery in M.M. Amosov National Institute of Cardio-Vascular Surgery between 29.06.16 and 30.10.16 were included in the study. 79 patients had a renal dysfunction before surgery: 19 (7.9%) – CKD and 60 (25.1%) – AKI. Renal replacement therapy (RRT) was used in 7 patients (4 — with CKD and 3 — with AKI). AKI was developed in 38 patients (15.9%) in postoperative period and RRT was started in one case. Statistically significant risk factors associated with AKI development in postoperative period were epinephrine usage (р
Keywords: cardiac surgery / chronic kidney disease / frequency / renal dysfunction / RRT / Postoperative Period

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