CAS in migraine tended to
-be bilateral (OR 5.8-23.8 among different CAS),
-be unrestricted to the headache sides (OR 5.0-20.4),
-appear with mild to moderate intensity (OR 1.7-7.7)
-and be inconsistent with headache attacks (OR 2.8-6.7).
CAS were present in half of our migraine patients and the clinical features may help differentiate migraine from CH.
J Neurol Neurosurg Psychiatry. 2009 Oct;80(10):1116-9. Epub
2008 Oct 17.
Cranial autonomic symptoms in migraine: characteristics and
comparison with cluster headache.
Lai TH, Fuh JL, Wang SJ.
Department of Neurology, National Yang-Ming University,
Taipei, Taiwan.