[Chronic Kidney Disease:Key Points for Intraoperative and Postoperative Management].

Chronic kidney disease( CKD) is a challenge in cardiac surgery in elderly patients, making intraoperative and postoperative management critical. Although sodium glucose co-transporter 2( SGLT2) inhibitors have nephroprotective effects, it's important to discontinue them three days before surgery and resume them when food intake is possible. Nephroprotective perioperative management of CKD stage 3-4 patients requires different approaches at each stage, with blood pressure control and nutritional counseling being key. For patients with CKD stage 5, postoperative management includes circulatory management in the intensive care unit and assessment of the need for and timing of hemodialysis. Continuous renal replacement therapy( CRRT) is common, but recently the use of multiple dialysis modalities (multimodal approach) has increased. This multimodal approach, which aims to avoid CRRT trauma, may contribute to improved outcomes.