Fig. 2From: Selective denervation of the corrugator supercilii muscle for the treatment of idiopatic trigeminal neuralgia purely paroxysmal distributed in the supraorbital and suprathrochlear dermatomesPatient flowchart. After failing to respond to conventional migraine treatments, patients were selected based on a positive (close to 100%) response to BTA injections. BTA injection were repeated 3 times in these patients and consistently achieved near to 100% remission of supraorbital headachesBack to article page