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SYNOPSIS Ten patients with cluster headache of different types, treated previously with several kinds of drugs, received lisuride hydrogen maleate in doses varying from 2X0.025 mg to 16X0.025 mg. The results obtained with lisuride were quite satisfactory as compared to results with other drugs, and there were no side‐effects in this small group of patients. Comparatively to migraine, which requires low dosages of lisuride, cluster headache seems to require a higher dosage of the drug for better results.

In all papers published up to now it is stated or surmised that in cervicogenic headache, described by Sjaastad and collaborators (Cephalalgia, 3(4): [240][241][242][243][244][245][246][247][248][249][250][251][252][253][254][255][256] 1983), the painful stimulus is carried mainly or exclusively by the greateroccipital nerve. As a contribution to the study in this modality of headache, the authors made 16 dissection in eight cadavers looking for the anatomical relations of the lesser occipital nerve. T h e results showed that the head and face pain originating from the ventral ramus of the second cervical nerve (C,) can be explained in three different ways: 1) through anatomical regional peculiarities which make it vulnerable to mechanisms of compression and stretching; 2) through the relationship between Cz ventral ramus, the superior cervical ganglion, and the ophthalmic branch of the trigeminal nerve; 3) through clinical evidence related to painful sensibility.T h e authors emphasize the possible role of the lesser occipital nerve on the genesis of cervicogenic headache. It is expected that the conclusions reached will be of help to clinical studies of headache. 0 1994 WiIey-Liss, Inc.Address reprint requests to Edgard Raffaelli Jr., M.D., PhD., Av. Euskbio Matoso, 366, CEP 05423-000, S5o Paulo -SP, Brazil.

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