{"title":"Blood Eosinophil Count is the Dominant Clinical Marker for type 2 Inflammatory Severity in CRSwNP.","authors":"Pei-Wen Wu, Chi-Che Huang, Po-Hung Chang, Ta-Jen Lee, Yu-Hsi Fan, Chien-Chia Huang","doi":"10.1002/lary.31899","DOIUrl":null,"url":null,"abstract":"<p><strong>Objective: </strong>Severe type 2 eosinophilic chronic rhinosinusitis with nasal polyps (CRSwNP) is challenging to treat and susceptible to recurrence post-surgery. This study aimed to evaluate the relationship between clinical markers and tissue type 2 inflammatory severity in patients with CRSwNP.</p><p><strong>Methods: </strong>Adult patients who underwent endoscopic sinus surgery for bilateral CRSwNP were prospectively enrolled. Tissue eosinophil count (TEC) was evaluated. Expression levels of type 2 cytokines, including IL-5 and IL-13, in nasal polyps were determined using real-time PCR. Correlations between clinical markers and tissue type 2 inflammation were also assessed.</p><p><strong>Results: </strong>In total, 150 participants were recruited. Ninety-five (63.3%) exhibited type 2 eosinophilic CRSwNP defined by TEC ≥10/high power field. Weak to moderate correlations were observed between clinical and tissue markers of type 2 inflammation. Among the clinical markers, blood eosinophil count (BEC) exhibited the highest correlation with tissue type 2 inflammatory severity, as determined by TEC, IL-5, and IL-13 expression levels in nasal polyps. Comorbid asthma, nonsmoking status, ethmoid/maxillary sinuses (E/M) ratio, and BEC were significant predictors of eosinophilic CRSwNP in the regression analysis.</p><p><strong>Conclusions: </strong>BEC, a dominant clinical marker, exhibits the highest correlation with tissue type 2 inflammatory severity, as determined by TEC, IL-5, and IL-13 in nasal polyps. Comorbid asthma, nonsmoking status, E/M ratio, and BEC were significant predictors of eosinophilic CRSwNP. This could help clinicians better evaluate the severity of type 2 inflammation in patients with CRSwNP and provide optimal therapeutic strategies.</p><p><strong>Level of evidence: </strong>4 Laryngoscope, 2024.</p>","PeriodicalId":49921,"journal":{"name":"Laryngoscope","volume":" ","pages":""},"PeriodicalIF":2.2000,"publicationDate":"2024-11-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Laryngoscope","FirstCategoryId":"3","ListUrlMain":"https://doi.org/10.1002/lary.31899","RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"MEDICINE, RESEARCH & EXPERIMENTAL","Score":null,"Total":0}
引用次数: 0
Abstract
Objective: Severe type 2 eosinophilic chronic rhinosinusitis with nasal polyps (CRSwNP) is challenging to treat and susceptible to recurrence post-surgery. This study aimed to evaluate the relationship between clinical markers and tissue type 2 inflammatory severity in patients with CRSwNP.
Methods: Adult patients who underwent endoscopic sinus surgery for bilateral CRSwNP were prospectively enrolled. Tissue eosinophil count (TEC) was evaluated. Expression levels of type 2 cytokines, including IL-5 and IL-13, in nasal polyps were determined using real-time PCR. Correlations between clinical markers and tissue type 2 inflammation were also assessed.
Results: In total, 150 participants were recruited. Ninety-five (63.3%) exhibited type 2 eosinophilic CRSwNP defined by TEC ≥10/high power field. Weak to moderate correlations were observed between clinical and tissue markers of type 2 inflammation. Among the clinical markers, blood eosinophil count (BEC) exhibited the highest correlation with tissue type 2 inflammatory severity, as determined by TEC, IL-5, and IL-13 expression levels in nasal polyps. Comorbid asthma, nonsmoking status, ethmoid/maxillary sinuses (E/M) ratio, and BEC were significant predictors of eosinophilic CRSwNP in the regression analysis.
Conclusions: BEC, a dominant clinical marker, exhibits the highest correlation with tissue type 2 inflammatory severity, as determined by TEC, IL-5, and IL-13 in nasal polyps. Comorbid asthma, nonsmoking status, E/M ratio, and BEC were significant predictors of eosinophilic CRSwNP. This could help clinicians better evaluate the severity of type 2 inflammation in patients with CRSwNP and provide optimal therapeutic strategies.
期刊介绍：
The Laryngoscope has been the leading source of information on advances in the diagnosis and treatment of head and neck disorders since 1890. The Laryngoscope is the first choice among otolaryngologists for publication of their important findings and techniques. Each monthly issue of The Laryngoscope features peer-reviewed medical, clinical, and research contributions in general otolaryngology, allergy/rhinology, otology/neurotology, laryngology/bronchoesophagology, head and neck surgery, sleep medicine, pediatric otolaryngology, facial plastics and reconstructive surgery, oncology, and communicative disorders. Contributions include papers and posters presented at the Annual and Section Meetings of the Triological Society, as well as independent papers, "How I Do It", "Triological Best Practice" articles, and contemporary reviews. Theses authored by the Triological Society’s new Fellows as well as papers presented at meetings of the American Laryngological Association are published in The Laryngoscope.
• Broncho-esophagology
• Communicative disorders
• Head and neck surgery
• Plastic and reconstructive facial surgery
• Oncology
• Speech and hearing defects
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