Abstract

Minna Chang61038*

Ketamine has been shown to be a novel and exciting antidepressant medication in patients with treatment-resistant depression. A complication commonly seen in frequent and heavy recreational use of ketamine is ulcerative cystitis, which presents with Lower Urinary Tract Symptoms (LUTS) and upper renal tract damage, seen in over 25% of regular users.

Although Ketamine-Induced Cystitis (KIC) is a recognized complication in recreational use of ketamine, its occurrence in therapeutic use for depression has so far not been reported. The exact pathogenesis of ketamine induced cystitis is currently unknown, making treatment and prevention much more difficult. Early diagnosis of ketamine induced cystitis and immediate cessation of ketamine use has been shown to improve adverse urinary tract symptoms and prevent further damage. We present a case of a 28-year-old female who was started on ketamine treatment for depression and developed symptoms of cystitis, which was confirmed by urine microscopy, culture and analysis. To our knowledge, this is the first reported case of ketamine-induced cystitis in a patient receiving treatment-dose ketamine for antidepressant therapy.