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Can serum IgE or blood eosinophil count predict postoperative oral corticosteroid response in chronic rhinosinusitis with nasal polyps?

Volume: 62 - Issue: 2

First page: 192 - Last page: 201

K-H. Shen - J-Y. Jiang - P-Y. Hsu - J. C-Y. Lai - W-H. Huang - P-S. Wu - Y-P. Wang

BACKGROUND: Chronic rhinosinusitis with nasal polyps (CRSwNP) is characterised by inflammatory mucosa and polyp formation in the paranasal sinuses. The study's primary objective was to evaluate the outcomes of postoperative oral corticosteroid (OCS) in treating patients with bilateral CRSwNP. The secondary objective was to determine whether preoperative serum IgE levels (sIgE)and/or blood eosinophil count (BEC) correlate with postoperative outcomes following OCS use.
METHODS: Patients with bilateral CRSwNP (n=236) who underwent endoscopic sinus surgery (ESS) were randomly assigned to receive 15 mg OCS twice daily or a placebo for 2 weeks. We investigated the treatment effects based on the subjective visual analogue scale (VAS), Sino-Nasal Outcome Test 22 (SNOT-22), and objective Lund-Kennedy Endoscopy Score (LKES) over 6 months; subgroups were stratified preoperatively as follows: sIgE <150 IU/mL, sIgE>=150 IU/mL, BEC <0.39x10(9) cells/L, and BEC>=0.39x10(9) cells/L.
RESULTS: A total of 193 participants completed the study up to the 6-month follow-up; no apparent linear relationship was noted between sIgE and BEC. No significant differences in scores were noted upon assessment of the VAS, SNOT-22, and LKES among the follow-up timepoints in the primary analysis. However, in the primary or subgroup analyses with sIgE or BEC, significant differences in the longitudinal scores of sleep dysfunction were observed at the 1-month follow-up.
CONCLUSION: Postoperative OCS did not significantly affect bilateral CRSwNP outcomes. sIgE levels and BEC may not be surrogate predictive biomarkers to assess the role of postoperative OCS use. OCS may increase the risk of transient sleep disturbance.

Rhinology 62-2: 192-201, 2024

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