A study of the efficacy of stellate ganglion blocks in complex regional pain syndromes of the upper body.

Background And Aims: The effect of stellate ganglion blocks (SGBs) was examined in complex regional pain syndromes (CRPS) of the upper body.

Material And Methods: A total of 287 SGB were given to patients with documented CRPS on medications. Spontaneous and provoked pain assessment was done with numeric pain rating scale (NPRS).