Clinical Outcomes of Acute Pyelonephritis in Type 2 Diabetes Mellitus.

Background Diabetes mellitus (DM) is a prevalent predisposing factor for urinary tract infections (UTIs). Among hospitalized patients with acute pyelonephritis, UTIs are more common, severe, and associated with worse outcomes, particularly in those with type 2 DM. Pyelonephritis in DM patients is more frequently bilateral and linked to greater complications, with 90% of emphysematous pyelonephritis (EMPN) and cystitis cases occurring in diabetic individuals.