Long-term stability of outcomes of endoscopic surgery for rhinogenic contact point headache (Sluder’'s neuralgia)

According to the International Headache Society classification, headache disorders can be divided into primary or idiopathic, second- ary, and orofacial pain disorders such as neuralgia and sinonasal related disorders [1–3]. Rhinogenic contact point headache (RCPH) is included among the secondary forms of the Headache Classification Subcom- mittee of the International Headache Society [1]. RCPH is defined as a syndrome secondary to mucosal contact points in the nasal sinus cav- ities, in the absence of inflammatory signs, hyperplastic mucosa, puru- lent discharge, sinonasal polyps, or tumors [4–6]. However, the pathology remains debated in the literature, especially because of its diagnostic setting and therapeutic options [7]. Moreover, RCPH is a controversial clinical entity in the literature [8,9].