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Papers of the Week


Papers: 2 Sep 2023 - 8 Sep 2023

RESEARCH TYPE:
Clinical, Psychology


Human Studies, Neurobiology, Pharmacology/Drug Development

PAIN TYPE:
Psychological/Comorbidities


2023 Sep 01


Pain Manag


37656045

Therapeutic effects of 7- to 14-day subanesthetic ketamine infusions for chronic pain on standardized psychiatric measures.

Authors

Marzoughi S, Ripsman D, Ong M

Abstract

We have previously shown that subanesthetic ketamine infusions effectively reduce refractory pain. However, the effects of ketamine infusions on comorbid conditions of depression and anxiety have not been explored in this patient population. We investigated the effects of ketamine on mood and anxiety in patients with refractory chronic pain treated with 7-14 days of subanesthetic continuous intravenous ketamine infusions, using well-validated clinical scales. There was a significant 52% reduction in pain severity and 33% reduction in pain interference scores following ketamine treatment. Ketamine treatment also reduced scores on the depression module of the Patient Health Questionnaire (PHQ-9) by 28% and scores on the Generalised Anxiety and Depression Assessment (GAD-7) by 36%. Multiday subanesthetic ketamine infusions effectively reduce pain, anxiety and depression in patients with complex chronic pain.