RDRI and NGAL in Acute Kidney Injury in Abdominal Surgery

Neutrophil Gelatinase-Associated Lipocalin, which can be measured from serum or urine, can detect acute kidney failure that may occur after surgery in the early stages.

Renal Doppler Resistive Index (RDRI) is a non-invasive index believed to reflect renal vascular perfusion. RDRI measurement is a repeatable, inexpensive, and easy-to-apply technique. RDRI has been found to be associated with AKI in conditions such as renal dysfunction, hypertension, and post-traumatic hemorrhagic shock. Furthermore, due to the impact on renal perfusion in patients undergoing major surgery, RDRI, which reflects renal vascular resistance, can serve as an indicator of kidney perfusion.