Multi-Day Low Dose Ketamine Infusion for the Treatment of Complex Regional Pain Syndrome

Background: Complex regional pain syndrome (CRPS) is characterized by pain that is out of proportion to the injury and is regional in distribution.

Objective: To report on the efficacy of low dose outpatient ketamine infusion for the treatment of CRPS diagnosed by International Association for the Study of Pain (IASP) criteria in patients who have failed conservative treatment.