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Ketamine and Complex Regional Pain Syndrome


Correll, Maleki et al. “Subanesthetic ketamine infusion therapy: a retrospective analysis of a novel therapeutic approach to complex regional pain syndrome.” Pain Medicine. 2004 Sep;5(3):263-75.

SUMMARY: This article reviewed 33 cases of patients with CRPS that were treated with Ketamine infusion. The patients received a prolonged low dose infusion of ketamine, on average 10-20mg/hr over 2-4 days. 76% of patients experienced complete pain relief after the first course of treatment. Pain relief lasted at least three months for most patients. Adding a second course of treatment allowed over 50% to be pain free for over a year. One patient had to discontinue additional treatments after the first infusion after developing elevated liver enzymes. These did normalize after treatment was stopped.

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