Abstract
We present a case of a 47-year-old female who presented with altered mental status and was found to have severe anti-NMDA receptor encephalitis. Her intensive care unit course was complicated by paroxysmal sympathetic storming. She also had urinary retention for which a catheter was placed early in her admission, but attempts at removal were associated with worsening storming. Her average Clinical Features Scale score was 5.9 when the catheter was not in place compared to 3.6 with the catheter in place. This is the first case report to our knowledge demonstrating an association between urinary catheter removal and autonomic storming in anti-NMDA receptor encephalitis.