Studies showed that glucocorticoids could specifically dilate renal vessel, increase in GFR, and regulate synthesis and release of atrial natriuretic peptide (ANP), upregulate ANP receptors on vascular endothelial cells, leading to significant diuresis and natriuresis. Adding glucocorticoids to standard care may potentiate the diuretic and natriuretic effects of diuretics and improve renal function, thus improve the clinical outcomes.