Abstract:
Fibromyalgia is a chronic, non-inflammatory pain disease with widespread body pain, tenderness at specific tender points, vegetative and functional disorders, and lowered pain thresholds. The prevalence in German speaking and international studies is 2 % more common amongst women than in men.
The following study examines the influence of flupirtine, a selective neuronal K+-channel opener, on the peripheral temperature and pain threshold. The spectrum of flupirtine shows analgesia, neuroprotection and muscle relaxation. In clinical practice, it is used for acute and chronic pain, particularly musculosceletal pain.
14 patients suffering from fibromyalgia were investigated with Quantitative Sensory Testing (QST) and dolorimetry, before and after having taken flupirtine, regarding temperature and pain thresholds. The results were also compared with data of a control group. Psychometric questionnaires were used to assess the psychological state of the patients.
In relation to temperature, a decreased threshold was evident in patients suffering from fibromyalgia compared to the control group.
The temperature threshold was significantly higher after taking flupirtine, however, the results of the control group could not be achieved. Pain thresholds showed similar results. Fibromyalgia patients showed reduced pain thresholds without taking flupirtine in comparison to the control group.
Flupirtine, long-serving in clinical practice, showed significant results regarding pain and temperature senses at fibromyalgia patients in the present study. With regards to this study, the clinical importance of flupirtine is, the using at patients with musculosceletal pain and reduced pain thresholds.