Bloqueio esfenopalatino no manejo da dor e seu impacto na qualidade de vida de pacientes com fibromialgia: ensaio clínico randomizado.

Abstract

Fibromyalgia is a condition characterized by diffuse chronic pain associated with various symptoms including fatigue, sleep disorders, cognitive impairment and depressive episodes, its prevalence is higher in females. The treatment is multidisciplinary, involving drugs, physical activity and cognitive therapies. Blocking the sphenopalatine ganglion is a proposed treatment for cranial and facial pain syndromes, it was used in case reports which showed improvement of various painful conditions. Our study is derived from a larger study proposed to evaluate the efficacy of this therapy in patients with fibromyalgia, being addressed here pain intensity and

their impact on quality of life of patients, using a double-blind randomized, placebo- controlled trial. 23 patients were randomized (14 in the lidocaine group and 9 in the

placebo group) and accompanied by Visual Analog Scale of Pain and by the Fibromyalgia Impact Questionaire. The results showed no significant differences between the two groups at any time of the study comparing the two variables (pain and quality of life). We conclude that there is no evidence in our study indicating that the use of blocking the sphenopalatine ganglion in patients with fibromyalgia has effectiveness, corroborating the findings of other clinical trials in the 90s .