• Simona Racaru, Jackie Sturt, and Aycan Celik.
• Florence Nightingale Faculty of Nursing, Midwifery and Palliative Care, King's College London, UK; St. Mary's Hospital, Imperial College Healthcare NHS Trust, London, UK. Electronic address: simona.racaru@nhs.net.
• Pain Manag Nurs. 2021 Jun 1; 22 (3): 302-311.

BackgroundPsychological interventions are effective at ameliorating the experience of pain in conditions such as rheumatoid arthritis and chronic back pain. However, their effect on diabetic peripheral neuropathy (DPN) pain has yet to be established AIM: To assess the effectiveness of psychological interventions on pain and related outcomes in adults with DPN.DesignSystematic review.SettingsCommunity, hospital in-patient and out-patient.Participants/SubjectsAdults with diabetic peripheral neuropathy.MethodsMedline, Embase, PsychInfo, and CINAHL databases together with grey literature and trial registers were searched. A meta-analysis and narrative synthesis of included studies were undertaken.ResultsNine studies were selected from 1610 citations. At short-term follow-up psychological therapies showed a large effect on pain severity (SMD = -0.94, 95%CI [-1.50, -0.37], p = .001), a small effect on pain interference (SMD = -0.39, 95%CI [-0.73, -0.05], p = .02), and a moderate effect on depressive symptoms (SMD = -0.58, 95%CI [-0.95, -0.21], p = .002). Quality of life significantly improved in experimental subjects, (MD = -2.35, 95%CI [-3.99, -0.71], p = .005). At medium-term follow-up there was a large effect on pain severity (SMD = -1.26, 95%CI [-1.76, -0.77], p < .00001) and on pain interference (SMD = -0.91, 95%CI [-1.61, -0.21], p = .01) and a moderate effect on depressive symptoms (SMD = -0.76, 95%CI [-1.48, -0.05], p = .04). At long-term follow-up, improvements in pain interference, mood, and self-care behaviors were reported.ConclusionsThese findings demonstrate that the relationship between pain and perceived control identified in other groups who experience chronic pain may also be replicated in the DPN population. This is an important outcome that can guide further research and associated service developments.Copyright © 2020 American Society for Pain Management Nursing. Published by Elsevier Inc. All rights reserved.

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