Relationship between Disease Activity and Absolute Eosinophil Count and Serum IgE Level in Pediatric Patients with Eosinophilic Esophagitis
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Relationship between Disease Activity and Absolute Eosinophil Count and Serum IgE Level in Pediatric Patients with Eosinophilic Esophagitis

J Curr Pediatr 2025;23(3):206-212 DOI: 10.4274/jcp.2025.04378
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Giriş

Eozinofilik özofajitte (EoE) tedaviye yanıtı değerlendirmede, klinik iyileşme mukozal iyileşmeyi yansıtmamaktadır. Bu yüzden hala tekrarlayan endoskopiler yapılmakta ve biyopsi örneklerinden eozinofil sayılmaktadır. Endoskopinin invaziv, riskli ve pahalı bir yöntem olduğu düşünülürse tedaviye yanıtı değerlendirmek için noninvaziv ve inflamasyonu iyi yansıtan bir biyobelirtece ihtiyaç vardır.

Gereç ve Yöntem

Çalışmaya EoE tanısı almış 0-18 yaş arası pediatrik hastalar dahil edildi. Yaş, cinsiyet, başvuru şikayetleri, eşlik eden alerjik hastalıklar, mutlak eozinofil sayısı (AEC), serum toplam IgE ve spesifik IgE (sIgE) düzeyleri retrospektif olarak kaydedildi. Tüm endoskopik incelemeler aynı iki deneyimli pediatrik gastroenterolog tarafından yapıldı. Biyopsi örnekleri iki deneyimli patolog tarafından yeniden değerlendirildi.

Bulgular

Çalışmaya 25 (%83.3)’ i erkek ve 5 (16.7)’ i kız, yaş ortalaması 6.93±4.47 yıl (2-16 yaş) olan toplam 30 hasta alındı. Özefagial eozinofil yoğunluğu ile total IgE düzeyleri arasında korelasyon görülmezken (p=0.75), AEC ile korele olduğu tespit edildi (p=0.005, r=0.248). Eozinofilik mikroabsesi olan hastaların IgE (1843.1 kU/L vs 420.8 kU/L, p <0.05) ve AEC (1073.8 /µL vs 436.3 /µL, p <0.05) düzeyleri belirgin olarak daha yüksek bulundu. ROC analizi ile yapılan değerlendirme sonucunda AEC değerinin, EoE’ i öngörmede tanısal değeri olduğu görüldü (AUC: 0.609, %95CI:0.51-0.71, p=0.022). Bu değer için önerilen sınır AEC değeri 395 /µL olup, sensitivite %58.1, spesifitesi %64.2, PPV%47.5, NPV %53.5 olarak bulundu.

Sonuç

AEC hastaların takibinde kullanılabilir bir parametre gibi görünse de, tek başına biyobelirteç olarak EoE’yi öngörmede yeterli değildir.

Anahtar Kelimeler: Eozinofilik özofajit, mutlak eozinofil sayısı, serum IgE

Kaynakça

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