LCN2 and Cirrhosis: A systematic review and meta-analysis in cirrhosis found urine NGAL to robustly distinguish ATN from HRS/prerenal AKI and carry independent prognostic information for short-term outcomes, while another meta-analysis that added post-2016 cohorts confirmed urine NGAL as a leading discriminator of ATN in cirrhosis-associated AKI [64,65].