Objective: To update the 2008 American Academy of Neurology (AAN) guidelines regarding botulinum neurotoxin for blepharospasm, cervical dystonia (CD), headache, and adult spasticity.
Methods:We searched the literature for relevant articles and classified them using 2004 AAN criteria.Results and recommendations: Blepharospasm: OnabotulinumtoxinA (onaBoNT-A) and incobotulinumtoxinA (incoBoNT-A) are probably effective and should be considered (Level B). AbobotulinumtoxinA (aboBoNT-A) is possibly effective and may be considered (Level C). CD: AboBoNT-A and rimabotulinumtoxinB (rimaBoNT-B) are established as effective and should be offered (Level A), and onaBoNT-A and incoBoNT-A are probably effective and should be considered (Level B). Adult spasticity: AboBoNT-A, incoBoNT-A, and onaBoNT-A are established as effective and should be offered (Level A), and rimaBoNT-B is probably effective and should be considered (Level B), for upper limb spasticity. AboBoNT-A and onaBoNT-A are established as effective and should be offered (Level A) for lower-limb spasticity. Headache: OnaBoNT-A is established as effective and should be offered to increase headache-free days (Level A) and is probably effective and should be considered to improve health-related quality of life (Level B) in chronic migraine. OnaBoNT-A is established as ineffective and should not be offered for episodic migraine (Level A) and is probably ineffective for chronic tension-type headaches (Level B). Neurology ® 2016;86:1818-1826 GLOSSARY AAN 5 American Academy of Neurology; aboBoNT-A 5 abobotulinumtoxinA; AE 5 adverse event; BDI 5 Blepharospasm Disability Index; BoNT 5 botulinum neurotoxin; CD 5 cervical dystonia; CI 5 confidence interval; CM 5 chronic migraine; DAS 5 Disability Assessment Scale; EM 5 episodic migraine; incoBoNT-A 5 incobotulinumtoxinA; onaBoNT-A 5 onabotulinumtoxinA; QOL 5 quality of life; RD 5 risk difference; rimaBoNT-B 5 rimabotulinumtoxinB; RMT 5 randomized, masked trials; TWSTRS 5 Toronto Western Spasmodic Torticollis Rating Scale; TZD 5 tizanidine.