Purpose: To determine the etiology and outcomes of critically ill patients with severe hyperammonemia.
Materials And Methods: Retrospective observational study of adults (18 years or older) admitted to a MICU from 2007 to 2016 who had a serum ammonia level >180 μmol/L (3 times the upper limit of normal).
Results: The 78 patients (45 male, 32 female) had a median age of 52 (interquartile range [IQR] 46-58) years.