Cervicogenic headache: electronystagmography, perception of verticality and posturography in patients before and after C2-blockade.
Fourteen patients with cervicogenic headache (9F, 5M) with a mean age of 42.8 (29-58) years were examined, before and within two hours after unilateral anaesthetic C2-blockades, clinically as well as by means of electronystagmography, subjective visual vertical test and posturography. After C2-blockade, patients exhibited a slight gait deviation to the injected side without eye movement disorder, dysmetria or ataxia. Although in two of nine patients there was a small influence on lateral body sway on posturography, no specific pattern of abnormalities in eye-head-body coordination could be found before or after C2-blockades. Thus, there is no clinical evidence for a significant reproducible influence of the second cervical root on oculomotor or cerebellar function in cervicogenic headache. These findings confirm earlier data in animal experiments.
Department of Neurology, University of Munich, Germany.
M
M
Dieterich
W
W
Pöllmann
V
V
Pfaffenrath
D000328:Adult; D000777:Anesthetics; D004584:Electronystagmography / Q000187:drug effects; D005260:Female; D006261:Headache / Q000503:physiopathology / Q000628:therapy*; D006801:Humans; D008297:Male; D008875:Middle Aged; D009407:Nerve Block; D009900:Optic Nerve; D011187:Posture; D014717:Vertigo
D000777:Anesthetics