Hypnotic analgesia for chronic pain in persons with disabilities: a case series.

Thirty-three adults with chronic pain and a disability were treated with hypnotic analgesia. Analyses showed significant pre- to posttreatment changes in average pain intensity that was maintained at 3-month follow-up. Significant changes were also found in pain unpleasantness and perceived control over pain but not in pain interference or depressive symptoms. Hypnotizability, concentration of treatment (e.g., daily vs. up to weekly), and initial response to treatment were not significantly associated with treatment outcome. However, treatment-outcome expectancy assessed after the first session showed a moderate association with treatment outcome. The findings support the use of hypnotic analgesia for the treatment of pain in persons with disabilities for some patients but not the use of pretreatment measures of hypnotizability or treatment-outcome expectancy for screening patients for treatment.