Potential patients must clear all study requirements to be enrolled. Study requirements include labwork, psychiatric evaluation, and cardiology evaluation.~Once enrolled, patients will be in one of two groups:~Receives epidural infusion~Receives epidural and ketamine infusions~The patient and study staff are blinded.~This study requires multiple visits to Hospital for Special Surgery in New York City over the course of three months and concludes with a final visit after six months. The study will only cover costs associated with the scheduled in-patient and out-patient visits. The study patient will be responsible for all other costs (including travel and hotel accommodations) that he/she may incur for participating in this study.
The purpose of this study is to determine whether epidural and ketamine infusions are effective in the treatment of Complex Regional Pain Syndrome (CRPS).