[Effectiveness of pain neuroscience education in patients with fibromyalgia: Structured group intervention in Primary Care].

OBJECTIVE

To evaluate the effectiveness of a group intervention in Primary Care in patients with fibromyalgia (FM) based on pain neuroscience education (PNE).

DESIGN

Pre-post study.

LOCATION

Urban Primary Health Centre in Bilbao.

PARTICIPANTS

Patients with FM (2010 American College of Rheumatology Diagnostic Criteria for fibromyalgia), ≥18 years.

INTERVENTION

5 weekly sessions (2hours each), and a reminder session one month later.

MAIN MEASUREMENTS

Compliance with FM criteria, assessed using the WPI (Widespread Pain Index, number of pain areas) and the SS (severity of symptoms) questionnaires. An assessment was also made on the impact of FM on functional capacity (FIQ:≥20% and ≥50% reduction in the FIQ total score from baseline to after treatment, and proportion of patients with FIQ<39 at the end of the study). Assessments were made at baseline, one month following the 5th session, and during the 6- and 12-month follow-up.

RESULTS

All the study evaluations were completed by 85/98 patients. A statistically significant improvement was observed in the 3 studied categories (WPI, SS, and FIQ) since the first visit, and was maintained until the final visit (12 months later). A total of 45 patients (53%, 95% CI: 42%-63%), more than those at baseline, scored FIQ<39 (no worse than mild functional impairment). One month following the 5th session there were 44 patients (52%, 95% CI: 41%-62%) that no longer met FM criteria and, at the end of follow-up, there were 56 patients (66%, 95% CI: 55%-75%).

CONCLUSIONS

An intervention based on PNE has shown to be feasible in Primary Care, with results in the upper range of those published with other treatments for FM.