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SUNCT
Syndrome
The IHS
describes the diagnostic criteria as any type of headache that does not
fulfill criteria for one of the disorders previously described. A
recently described headache syndrome is not classified to date. This is
the SUNCT syndrome. This acronym stands for Short-lasting Unilateral
Neuralgia from headache attacks with Conjunctival Injection and Tearing
(Sjaastad et al, 1989; Sjaastad et al, 1991; Bussone et al, 1991). The
majority of patients are males and have short-lasting unilateral attacks
in the peri-ocular area accompanied by various autonomic disturbances,
such as conjunctival injection, lacrimation, nasal stuffiness and
rhinorrhea, and subclinical forehead sweating. Abnormal vasomotor
reactivity was suggested by transcranial doppler studies performed by
Shen and Johnsen (1994).
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