Aims: Chronic pain is a common problem, and there is growing awareness of risks associated with prescribing of analgesics. Misuse of prescription opioids, and of other analgesic drugs, notably gabapentinoids, has increased. A number of tools have been developed to predict those more at risk of problem use. This review was undertaken to determine which validated measurement tools can be used to assess this risk in patients with chronic pain, either prior, or during, treatment. Analgesics included opioids, gabapentinoids and tricyclic antidepressants.
Design: Selected databases (Embase, Medline, Cochrane library/CENTRAL, PsycINFO, PubMed, CINAHL) were systematically searched, using selected inclusion/ exclusion criteria and a reproducible search strategy. Two independent reviewers reviewed abstracts, then full texts of selected studies to extract data and assess quality.
Setting: Primary & secondary healthcare providers
Participants: Adults (18 and over) with a diagnosis of chronic pain (pain persisting for more than 3 months), where analgesic medication was prescribed or under consideration
Measurements: 1844 abstracts were identified, and 34 studies selected for inclusion after initial selection and review of bibliographies of selected studies. All identified or predicted problematic use of opioids rather than gabapentinoids or tricyclic antidepressants, for which no studies were found. Meta-analysis was not undertaken given the heterogeneity in definitions and methods between studies.
Findings & Conclusions: 14 tools were identified, with 17 studies presenting or evaluating tools that aimed to predict future misuse; 5 measuring current misuse; 4 claiming to do both; 3 comparing different measures; and 2 describing tools that largely monitored use. In addition, 3 systematic reviews were identified. Advantages and limitations were discussed, as well as the need for validation of existing tools in different populations, and further development of tools to predict misuse of other analgesics including gabapentinoids.
Professor Lesley Colvin, University of Edinburgh Dr Daniel Mogford, NHS Lothian
Conflicts of interest:
Funding Sources: None
No conflict of interest