Intractable Cluster Headache: Sphenopalatine Ganglion Blocks May be Treatment of Choice.

Cluster headaches is a primary neurovascular headache and is associated with autonomic symptoms. A sphenopalatineablation with radiofrequency is suggested in the following abstract. I disagree. If patients get relief from a sphenopalatine block of their cluster hedaches they will probably find intranasal prophylactic SPB blocks are also effective. An old study on SPG ablation at Mayo was