[Sphenopalatine ganglion block : a promising approach for headache and supratentorial intracranial surgery ?].

We aimed to determine whether sphenopalatine ganglion block (SPGB) had a place as a treatment for headache, as well as its place as an anterior component of scalp block for supratentorial intracranial surgery. Using the keywords «sphenopalatine ganglion», «sphenopalatine ganglion block», «pain», «surgery» and «craniotomy» in PubMed and Google Scholar, we identified 14 relevant articles. The methods used to perform the block and the treatment of control groups differed between studies.