Acute Kidney Injury - Hospital in navimumbai, maharashtra

In AKI, the underlying pathophysiology features a complex interaction between predisposing chronic illnesses, haemodynamic disturbances, nephrotoxic insults, and inflammatory responses, resulting in tubular cell injury and, ultimately, a reduction in glomerular filtration rate. Cardiovascular disease associates acute kidney injury (AKI) with heightened morbidity and mortality. In 2005, a landmark study of 71 children undergoing cardiac surgery showed that urine Neutrophile Gelatinase-Associated Lipocalin (uNGAL) and plasma NGAL (pNGAL), assessed 2 hours after cardiopulmonary bypass, had a high diagnostic accuracy for AKI (defined as a ≥50% increase in creatinine from baseline).

uNGAL’s sensitivity was 100% with an area under the receiver-operating characteristic curve (AUC) of 0.998, and pNGAL’s sensitivity was 70% with an AUC of 0.906. These promising results led to further studies of NGAL in cardiogenic shock, contrast induced nephropathy (CIN), heart failure (HF), sepsis, and critical illness. In critical illness, septic patients face a significantly heightened risk of AKI. In a multicenter study that included patients presenting to the emergency department with suspected sepsis, pNGAL (plasma neutrophil gelatinase-associated lipocalin) exhibited a strong predictive capacity for AKI with an AUC of 0.82, surpassing the AUC of 0.73 observed for creatinine.

Due to the use of serum creatinine and urine output to fulfill diagnostic criteria, the clinical benefits of promptly and definitively diagnosing AKI have not been fully realized. These restrictions often lead to diagnostic delays, potential misclassification of actual injury status, and provide little information regarding underlying cause. Novel biomarkers of damage have shown ability to reflect ongoing kidney injury and help further refine existing Risk, Injury, Failure, Loss, End-stage kidney disease (RIFLE) and Acute Kidney Injury Network (AKIN) diagnostic criteria.