Ketamine Enhances Analgesia and Mood in Chronic Pain Patients

Most chronic pain patients have mood disorders. The mood disorders may improve with better analgesia produced by Ketamine injections. A prospective study of patients undergoing interventional pain therapy using Ketamine injections. Pre-injection and post-injection patient data is collected. Pain is measured using numeric pain rating scale, and change in pain score by 2-points is considered significant. Sleep is measured using Likert sleep scale, and change in sleep score by 2-points is considered significant. Anxiety is measured using general anxiety disorder (GAD-7) scale, and change in anxiety score by 4-points is considered significant. Depression is measured using patient health questionnaire (PHQ-9), and change in depression score by 5-points is considered significant.