Abstract Introduction Granulocyte-macrophage colony-stimulating factor (GM-CSF) is a strong proinflammatory cytokine that takes part in allergic nasal inflammation as an eosinophil colony-stimulating factor. However, the role of GM-CSF in non-allergic rhinitis has not been fully explored. Objectives The aim of this investigation was to assess the concentration of GM-CSF in nasal secretions of patients with non-allergic rhinitis with eosinophilia syndrome (NARES) in comparison to patients with perennial allergic rhinitis (PAR) and healthy subjects, as well as to assess the relationship with the degree of eosinophilic inflammation and clinical characteristics of the patients. Methods Fourteen patients with diagnosis of NARES, 14 PAR patients, and 14 healthy subjects were included in this cross-sectional study. All patients underwent symptom score assessment, nasal endoscopy, allergy testing, and cytological evaluation. The concentration of GM-CSF in nasal secretions of all participants was measured by enzyme-linked immunosorbent assay ( ELISA ). Results We found significantly higher levels of GM-CSF in patients with NARES than in the control group (p= 0.035). The percent of eosinophils in nasal mucosa was higher in NARES patients in comparison to patients with PAR (p< 0.001) and control patients (p< 0.0001). We found positive correlations between GM-CSF levels and eosinophil counts only in NARES patients. Conclusion The concentrations of GM-CSF in nasal secretions correlate well with eosinophil counts in the nasal mucosa of NARES patients. These facts indicate a possible role of GM-CSF as a favorable marker for assessment of nasal disease severity and the degree of chronic eosinophilic inflammation in the nasal mucosa.

Abstract Introduction Even in the absence of inflammatory disease, facial pain often results from pressure of two opposing nasal mucosa surfaces. Objectives The objective of this study is to assess the efficacy of surgical treatment of contact point headache. Methods Our study enrolled patients with unilateral facial pain and without nasal/ paranasal sinus disease. We confirmed the presence of mucosal contact by nasal endoscopy and by computed tomography. Forty-two subjects with the three most common anatomical variations underwent complete evaluation: 17 with concha bullosa (CB), 11 with septal deviation (SD), and 14 with septal spur (SS). All participants were treated by topical corticosteroid, adrenomimetic, and antihistamine. The patients without improvement were treated surgically. We assessed the severity of pain using a Visual Analogue Score (VAS) before surgical treatment and one, six, twelve, and twenty-four months after. Results The patients with SS had more severe facial pain in comparison with patients with CB (p=0.049) and SD (p=0.000). The subjects with CB had higher degree of facial pain than the ones with SD (p=0.001). After an unsuccessful medical treatment and surgical removal of mucosal contacts, the decrease of headache severity was more intense in patients with CB and SS (p=0.000) than in the patients with SD (p=0.01). Conclusion Our results suggest that topical medications have no effects and that surgical removal of mucosal contacts could be effective in the treatment of contact point headache. The results of surgical treatment were better in cases of facial pain caused by SS and CB, than in those caused by SD.