Ital J Neurol Sci. 1995 Dec;16(9):9-14. doi: 10.1007/BF02333239.
Italian journal of neurological sciences
[Article in Italian] G C Manzoni
PMID: 27315253 DOI: 10.1007/BF02333239
Following a short analysis of leading principles of the classification and diagnostic criteria of headaches of the International Headache Society (IHS) and a brief description of its nosography of primary headaches, some still debated issues are discussed. The IHS classification shows a good inter-observer reliability both at one- and two-digit levels, even though validation studies are lacking. On the basis of researches carried out in recent years on the evolution of cluster headache, on chronic daily headache, on a possible third diagnostic level of migraine without aura, and on the painful phase of migraine with aura, some proposals of revision of the IHS classification are suggested.
Keywords: chronic daily headache; classification; cluster headache; headache; migraine