Fig. 1

Plasma NGAL concentration over time at the inlet and outlet, and in the ultrafiltrate, after the initiation of CVVH in patients with SAKI. Levels of pNGAL at the inlet and outlet did not change (P > 0.05), whereas in the ultrafiltrate, the level decreased over time (P = 0.013). CVVH, continuous venovenous hemofiltration; NGAL, neutrophil gelatinase-associated lipocalin; SAKI, septic acute kidney injury