IngentaConnect The role of anti-IgE immunoglobulin therapy in nasal polyposis: A...

Abstract:

Background: Although the etiology of nasal polyposis (NP) remains unknown, emerging evidence showing elevated local IgE levels and eosinophilic infiltration suggests an allergic etiology. Given this evidence, this pilot study examined whether anti-IgE therapy is efficacious in the treatment of NP.

Methods: Data were retrospectively collected on two groups of patients with atopic asthma and NP who underwent endoscopic sinus surgery (ESS), including a control group (n = 4) and an anti-IgE treatment group (n = 4), who received the anti-IgE agent, omalizumab, postoperatively. Both groups were evaluated by sinus computed tomography (CT) and nasal endoscopic examination, and comparisons were made between the groups with respect to differences in the recurrence of NP after ESS.

Results: Collectively, the subjects showed a direct relationship between NP severity and pretreatment total serum IgE levels. Preoperatively, there were no differences between the groups with regard to their total serum IgE levels, sinus CT scores, and endoscopically determined NP scores. Relative to corresponding preoperative values, there was no significant improvement in the sinus CT scores in either treatment group postoperatively. In contrast, relative to preoperative values, the nasal polyp scores significantly improved in the anti-IgE group, whereas the control group showed no significant improvement.

Conclusion: This pilot study provides new evidence establishing that (1) endoscopic NP severity directly correlates to total serum IgE levels and (2) inclusion of anti-IgE therapy in the postpolypectomy management of atopic asthmatic individuals may reduce the severity of NP recurrence.

Keywords: Allergic rhinosinusitis; allergy; asthma; atopic asthma; atopy; IgE; nasal polyps; omalizumab; perennial allergies; Xolair

Document Type: Research article

DOI: 10.2500/ajr.2007.21.3060

Affiliations: 1: FDepartment of Otolaryngology-Head and Neck Surgery, Georgetown University Hospital, Washington, D.C. 2: Department of Otolaryngology-Head and Neck Surgery, Georgetown University Hospital, Washington, D.C.

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The role of anti-IgE immunoglobulin therapy in nasal polyposis: A pilot study