Assessing diagnostic tests for shrimp allergy in children: A multicenter trial

Assessing diagnostic tests for shrimp allergy in children: A multicenter trial

Background: Clinical research on pediatric shrimp allergy is limited. Objective: We sought to evaluate the diagnostic accuracy and safety of testing methods for shrimp allergy. Methods: An oral food challenge (OFC) for shrimp was conducted on Japanese children with suspected shrimp allergy. Before t...

Full description

Saved in:
Bibliographic Details
Main Authors: Yuri Takaoka, MD, PhD, Yuki Tsurinaga, MD, Yukiko Hiraguchi, MD, PhD, Masaaki Hamada, MD, PhD, Atsuko Nakano, MD, Tomoko Kawakami, MD, Ikuo Okafuji, MD, PhD, Nayu Iwakoshi, MD, Masaaki Doi, MD, PhD, Keita Otsuka, MD, Yukiko Sugimoto, MD, Norihito Iba, MD, Junko Kumon, MD, Rumi Ueno, MD, Tamana Nakano, MD, Tomohiro Yamaguchi, MD, Yohei Fuksawa, MD, Amane Shigekawa, MD, Yukinori Yoshida, MD, PhD, Makoto Kameda, MD
Format: Article
Language:English
Published: Elsevier 2025-08-01
Series:Journal of Allergy and Clinical Immunology: Global
Subjects:
Shrimp hypersensitivity
IgE
skin prick test (SPT)
ROC-curve analysis
tropomyosin
allergic reaction symptoms
Online Access:http://www.sciencedirect.com/science/article/pii/S2772829325000724
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Background: Clinical research on pediatric shrimp allergy is limited. Objective: We sought to evaluate the diagnostic accuracy and safety of testing methods for shrimp allergy. Methods: An oral food challenge (OFC) for shrimp was conducted on Japanese children with suspected shrimp allergy. Before the OFC, shrimp-, tropomyosin-, house dust mite–, and cockroach-specific IgE levels were measured, along with skin prick tests (SPTs). OFC results using epinephrine as a safety indicator determined persistent, mild, or tolerant shrimp allergy. Results: Sixty-six children (median age, 6 years) underwent the OFC. All patients demonstrated house dust mite–specific IgE level exceeding 0.35 IUA/mL. Sixteen were diagnosed with persistent shrimp allergy, defined by Anaphylaxis Scoring Aichi scores greater than or equal to 10 or scores of 5 with urticaria. A 15-year-old required epinephrine for anaphylaxis. Eight children with negative results (scores ≤ 9) reported mild symptoms after repeated home ingestion following the OFC. Median SPT wheal diameters in persistent, mild allergic, and tolerant groups were similarly elevated (8.5 vs 9.5 vs 8.0 mm; P = .99). Patients with persistent shrimp allergy had higher median shrimp- and tropomyosin-specific IgE level than those classified as mild or tolerant (shrimp: 73.5 vs 30.0 vs 9.4 IUA/mL; P = .01; tropomyosin: 68.0 vs 41.9 vs 11.5 IUA/mL; P = .16). Receiver-operating characteristic analysis determined optimal IgE cutoff values as 58.2 IUA/mL for shrimp-specific IgE and 33.5 IUA/mL for tropomyosin-specific IgE. Conclusions: SPT showed limited symptom correlation, whereas shrimp-specific IgE demonstrated greater diagnostic value than tropomyosin-specific IgE. No IgE cutoff accurately predicts a successfully passed OFC.
ISSN:2772-8293

Similar Items