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Investigation of the diagnostic accuracy of basophil activation test for allergic phenotypes of rhinitis
Allergy ( IF 12.6 ) Pub Date : 2024-11-05 , DOI: 10.1111/all.16390
Almudena Testera‐Montes, Adriana Ariza, Rosa Alba Sola‐Martinez, Carlos Jose Aranda, Guillermo Bentabol‐Ramos, Dulce Sanchez‐Torralvo, Cristobalina Mayorga, Maria Jose Torres, Ibon Eguiluz‐Gracia, Carmen Rondon

IntroductionBasophil activation test (BAT) might be an alternative to nasal allergen challenge (NAC) to identify the allergic etiology in rhinitis patients. Here, we investigate the diagnostic performance of BAT for allergic phenotypes of rhinitis.MethodsRhinitis patients and healthy controls were subjected to NAC with Dermatophagoides pteronyssinus (DP), Alternaria alternata (AA), grass (GP) and olive (OP) pollens. Rhinitis subjects also underwent skin prick test (SPT) with relevant allergens. Patients were classified into allergic rhinitis (AR, positive NAC and SPT), local allergic rhinitis (LAR, positive NAC and negative SPT), dual allergic rhinitis (DAR, defined as AR for ≥1 allergen and LAR for ≥1 allergen), and non‐allergic rhinitis (NAR, negative NAC and SPT) phenotypes. BAT with DP, AA, GP and OP was conducted in study individuals and compared with NAC results.ResultsA total of 47 AR, 31 DAR, 26 LAR, 12 NAR and 21 control subjects were recruited. The best positivity cut‐offs of BAT for DP‐, AA‐, GP‐ and OP‐driven allergy (all phenotypes) were a %CD63 cells of 8.650, 14.250, 26.200, and 12.780, respectively (AUC 0.851, 0.701, 0.887, and 0.921, respectively).Sensitivity, specificity, negative and positive predictive values of BAT (all phenotypes) ranged 43.5%(AA)‐83.3%(OP), 88.9%(GP)‐100%(AA), 87%(GP)‐100%(AA), and 61.1%(DP)‐80.0%(pollens), respectively. BAT identified 79%–100% of SPT‐positive allergies (AR and DAR), and 25%–75% of SPT‐negative allergies (LAR and DAR), while ≤10% of NAR/HC subjects tested positive. BAT positivity correlated with rhinitis severity in LAR patients (p = 0.018), and associated with conjunctivitis (p = 0.015) in allergic subjects.ConclusionBAT can replace NAC for AR confirmation, and limit the number of NAC required for LAR and DAR diagnosis. BAT can demonstrate sIgE in SPT‐negative allergies.

中文翻译:


嗜碱性粒细胞活化试验对鼻炎过敏表型的诊断准确性调查



简介嗜碱性粒细胞活化试验 (BAT) 可能是鼻过敏原激发试验 (NAC) 的替代方法,用于确定鼻炎患者的过敏病因。在这里,我们研究了 BAT 对鼻炎过敏表型的诊断性能。方法鼻炎患者和健康对照者采用 Dermatophagoides pteronyssinus (DP)、Alternaria alternata (AA)、草 (GP) 和橄榄 (OP) 花粉进行 NAC。鼻炎受试者还接受了相关过敏原的皮肤点刺试验 (SPT)。患者分为过敏性鼻炎 (AR,NAC 和 SPT 阳性)、局部过敏性鼻炎 (LAR,NAC 阳性和 SPT 阴性)、双重过敏性鼻炎 (DAR,定义为 ≥1 过敏原的 AR 和 ≥1 过敏原的 LAR)和非过敏性鼻炎 (NAR,NAC 和 SPT 阴性) 表型。在研究个体中进行 DP、AA、GP 和 OP 的 BAT,并与 NAC 结果进行比较。结果共招募 47 例 AR 、 31 例 DAR 、 26 例 LAR 、 12 例 NAR 和 21 例对照受试者。BAT 对 DP-、AA-、GP 和 OP 驱动过敏 (所有表型) 的最佳阳性临界值为 % CD63 细胞分别为 8.650、14.250、26.200 和 12.780 (AUC 分别为 0.851、0.701、0.887 和 0.921)。BAT (所有表型) 的敏感性、特异性、阴性和阳性预测值分别为 43.5%(AA)‐83.3%(OP)、88.9%(GP)‐100%(AA)、87%(GP)‐100%(AA) 和 61.1%(DP)‐80.0%(花粉)。BAT 确定了 79%-100% 的 SPT 阳性过敏症(AR 和 DAR),以及 25%-75% 的 SPT 阴性过敏症(LAR 和 DAR),而 ≤10% 的 NAR/HC 受试者检测呈阳性。BAT 阳性与 LAR 患者的鼻炎严重程度相关 (p = 0.018),与过敏受试者的结膜炎 (p = 0.015) 相关。结论BAT 可替代 NAC 进行 AR 确认,并限制 LAR 和 DAR 诊断所需的 NAC 数量。BAT 可以在 SPT 阴性过敏中显示 sIgE。
更新日期:2024-11-05
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