Unilateral impairment of pupillary response to trigeminal nerve stimulation in cluster headache.
Pain
; 36(2): 185-191, 1989 Feb.
Article
em En
| MEDLINE
| ID: mdl-2783997
ABSTRACT
The pupillary constriction induced ipsilaterally by transcutaneous electrical nerve stimulation (TENS) of the infratrochlear nerve was measured, using an electronic pupillometer, in 26 episodic cluster headache (CH) and 15 migraine sufferers tested during an attack-free period and in 16 healthy controls. In controls, TENS gave rise to a miosis which was slow in onset and long-lasting in duration, and which was comparable to that mediated by tachykinins in animals. A similar miotic response was bilaterally observed in migraine patients and in CH patients examined during the inactive phase. In CH sufferers during the cluster period, TENS only elicited a normal pupillary constriction in the asymptomatic eye, whereas the resulting response in the symptomatic eye was markedly decreased. Although the exact mechanism underlying the dysfunction remains to be clarified, these results seem to indicate that ocular trigeminal pathways are involved in CH.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Nervo Trigêmeo
/
Cefaleias Vasculares
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Pupila
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Cefaleia Histamínica
Limite:
Adolescent
/
Adult
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Female
/
Humans
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Male
/
Middle aged
Idioma:
En
Revista:
Pain
Ano de publicação:
1989
Tipo de documento:
Article