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Biologics and Surgery in Chronic Rhinosinusitis With Nasal Polyps: A Comparative Outcomes Analysis
Nirushan Narendran1, Shireen Samargandy1,2,3, Sophia Volpe1
1Department of Otolaryngology, University of Arizona, Tucson, Arizona.
American Journal of Rhinology & Allergy
|August 14, 2025
Summary
Endoscopic sinus surgery (ESS) and biologic therapies show similar symptom improvement for chronic rhinosinusitis with nasal polyps (CRSwNP). Both treatments effectively manage CRSwNP, though biologics may offer faster olfactory function recovery.
Area of Science:
- Otolaryngology
- Immunology
- Medical Therapeutics
Background:
- Chronic rhinosinusitis with nasal polyps (CRSwNP) significantly impacts quality of life, causing nasal obstruction, facial pressure, and altered smell.
- Endoscopic sinus surgery (ESS) is a common treatment, but nasal polyp recurrence necessitates alternative or adjunctive therapies.
- Biologic therapies targeting type-2 inflammation demonstrate efficacy in improving sinonasal symptoms for CRSwNP patients.
Purpose of the Study:
- To conduct a meta-analysis comparing the longitudinal efficacy of endoscopic sinus surgery (ESS) versus biologic therapies in managing chronic rhinosinusitis with nasal polyps (CRSwNP).
- To evaluate standardized outcome measures, including symptom scores, nasal polyp burden, and olfactory function, for both treatment modalities.
Main Methods:
- A systematic literature search was performed across major electronic databases (MEDLINE, EMBASE, Cochrane Library, Web of Science, ClinicalTrials.gov) up to August 2024.
- A random-effects meta-analysis synthesized data from 27 studies, focusing on changes in the Sino-Nasal Outcome Test-22 (SNOT-22) scores.
- Secondary analyses examined changes in nasal polyp score (NPS) and olfactory function, with heterogeneity assessed using I² statistics.
Main Results:
- Both ESS and biologic therapies led to significant improvements in SNOT-22 scores at 6 and 12 months, with no statistically significant difference between the two groups.
- While both treatments improved outcomes from baseline, biologic therapies showed a trend towards superior improvement in olfactory function at 6 months compared to ESS.
- Analysis of nasal polyp scores and olfactory function was limited by the small number of studies available for secondary outcomes.
Conclusions:
- Significant heterogeneity exists in patient selection, outcome measurement methods, and longitudinal data collection across studies comparing ESS and biologics for CRSwNP.
- Future research should prioritize standardized data collection and consistent follow-up protocols to enable robust comparative meta-analyses.
- Both ESS and biologic therapies are effective in managing CRSwNP, but further high-quality comparative studies are needed to refine treatment strategies.

