Perioperative evaluation of kidney function for patients with complicated forms of coronary artery disease

The study aimed to analyze kidney function for patients with complicated forms of coronary artery disease (CAD) in the perioperative period. Methods. It was a retrospective analysis of 110 high-risk patients with complicated forms of CAD, who were operated on and discharged from the National M. Amosov Institute for the period from 2009 till 2019 years. Kidney function was evaluated by glomerular filtration rate (GFR), calculated online with СKD-EPI formula. Results. Among the included patients there were 86 (78.1%) patients with metabolic syndrome, 81 (73.59%) patients with disorders of glucose metabolism, 82 (74.5%) subjects with chronic obstructive pulmonary disease and 38 (34.5%) patients had chronic kidney disease (CKD) 3-5 stage. Preoperative risk stratification with EuroScore II scale was 9.4%. All operations performed in cardiopulmonary bypass; Custodial cardioplegia was used in 53 (48.1%) patients. The average perfusion time was 111 minutes, average cross-clamping time was 73.9 minutes. Acute kidney injury in the early postoperative period had 9 (8.1%) patients. Conclusions. At the admittance 38 (34.5%) patients with complicated forms of CAD had CKD 3-5 st. Analysis of the GFR dynamic in the early postoperative period shown a decrease in GFR in 71.05% of patients. Transient acute kidney injury with 50% sCr growth had 9 (8.1%) patients but didn't require hemodialysis.