MDCalc

Acute Renal Failure after Cardiac Surgery (Thakar Score)

Predicts risk of acute renal failure (ARF) requiring dialysis after cardiac surgery.

Gender

Congestive heart failure

Left ventricular ejection fraction <35%

Preoperative use of IABP

COPD

Insulin-requiring diabetes

Previous cardiac surgery

Emergency surgery

Surgery type

Preoperative creatinine, mg/dL

Result:

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Advice
  • Lower-risk individuals may be managed with standard perioperative care, ensuring hydration and avoidance of nephrotoxins.
  • For higher-risk patients, consider:
    • Avoiding nephrotoxic agents (e.g., contrast agents, ACE inhibitors) when possible and ensuring appropriate medication dosing.
    • Optimizing volume status and maintaining adequate perfusion pressure.
    • Adjusting intraoperative hemodynamic goals as needed.
    • Implementing close postoperative renal function monitoring (e.g., serum creatinine, urine output).
    • Consulting nephrology preoperatively for risk mitigation or postoperatively for signs of renal deterioration.