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"ABSTRAK Latar Belakang: Pemeriksaan IgE spesifik serum baru diperkenalkan di Indonesia, tetapi belum ada data uji diagnostik mengenai akurasinya dalam mendeteksi alergen tungau debu rumah dan kecoa pada pasien asma dan atau rinitis alergi. Tujuan: Tujuan penelitian ini adalah untuk mendapatkan akurasi diagnosis pemeriksaan IgE spesifik serum dalam mendiagnosis sensitisasi alergen Dermatophagoides pteronyssinus Der p , Dermatophagoides farinae Der f , Blomia tropicalis Blo t dan Blatella germanica Bla g pada pasien asma dan atau rinitis alergi.Metode: Penelitian ini adalah studi potong lintang pada pasien alergi pernapasan dan merupakan bagian dari studi epidemiologi mengenai sensitisasi IgE spesifik di Divisi Alergi-Immunologi, RS Cipto Mangunkusumo, Jakarta, antara September dan Desember 2016. Pengukuran sensitisasi IgE spesifik dilakukan dengan metode imunoblot Euroline , Euroimmun AG, Germany . Alergen yang diuji adalah Der p, Der f, Blo t, dan Bla g. Hasilnya dibandingkan dengan baku emas uji tusuk kulit. Uji diagnostik yang dilakukan meliputi sensitivitas, spesifisitas, positive predicitive value PPV , negative predictive value NPV , likelihood ratio positif dan negatif LR and LR- .Hasil: Serbanyak 101 pasien dilibatkan dalam studi, 77 76,2 di antaranya adalah perempuan. Rerata usia pasien adalah 38,8 tahun. Berdasarkan uji tusuk kulit, sensitisasi tertinggi yang didapatkan adalah terhadap Blo t 76,2 , disusul oleh Der p 70,3 , Der f 69,3 , dan Bla g 41,6 . Sensitisasi IgE-spesifik tertinggi ditunjukkan oleh Der f 52,9 , diikuti oleh Der p 38,2 , Blo t 33,3 dan Bla g 10,8 . Alergen Der p memiliki 50,7 sentivitas, 90 spesifisitas, 92,3 PPV, 43,5 NPV, 5,1 LR dan 0,1 LR-. Der f memperlihatkan 71,4 sensitivitas, 87,1 spesifisitas, 82,6 PPV, 57,4 NPV, 5,5 LR dan 0,3 LR-. Alergen Blo t menunjukkan 41,6 sensitivitas, 91,7 spesifisitas, 94,1 PPV, 32,8 NPV, 5,0 LR , dan 0,6 LR-. Alergen Bla g menghasilkan 23,8 sensitivitas, 98,3 spesifisitas, 90,9 PPV, 64,4 NPV, 14,5 LR dan 0,8 LR-.Kesimpulan: Pemeriksaan IgE spesifik serum dalam mendiagnosis sensitisasi alergen Dermatophagoides pteronyssinus, Dermatophagoides farinae, Blomia tropicalis, dan Blatella germanica pada pasien asma dan atau rinitis alergi memperlihatkan sensitivitas rendah sampai sedang, tetapi spesifisitas dan PPV yang tinggi.

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ABSTRACTBackground Serum specific IgE testing has recently been introduced in Indonesia, but diagnostic test has not been performed to know its performance to detect house dust mite and cockroach allergens in patients with allergic asthma and or rhinitis.Objective The objective of this study was to obtain diagnostic accuracy of serum specific IgE testing in diagnosing allergen sensitization to Dermatophagoides pteronyssinus, Dermatophagoides farinae, Blomia tropicalis, and Blatella germanica allergens in patients with allergic asthma and or rhinitis.Method This was a cross sectional study among patients with respiratory allergy and was part of a larger epidemiology study on specific IgE sensitization in the Division of Allergy Immunology, Cipto Mangunkusumo Hospital, Jakarta between September and December 2016. Specific IgE sensitization was measured using immunoblot method Euroline , EuroImmun AG, Germany . Allergens tested were Dermatophagoides pteronyssinus Der p , Dermatophagoides farinae Der f , Blomia tropicalis Blo t , and Blatella germanica Bla g . The results was compared to the standard skin prick test . Diagnostic test were performed and include sensitivity, specificity, positive predicitive value PPV , negative predictive value NPV , positive and negative likelihood ratio LR and LR .Results A total of 101 patients were enrolled 77 76.2 were women. Patients mean age was 38.8 years old. Based on SPT, sensitization was highest for Blo t 76.2 , followed by Der p 70.3 , Der f 69.3 , and Bla g 41.6 . Specific IgE sensitization was highest for Der f 52.9 , followed by Der p 38.2 , Blo t 33.3 and Bla g 10.8 . Der p allergen had 50.7 sentivity, 90 specificity, 92.3 PPV, 43.5 NPV, 5.1 LR and 0.1LR . Der f showed 71.4 sensitivity, 87.1 specificity, 82.6 PPV, 57.4 NPV, 5.5 LR and 0.3 LR . Blo t allergen had 41.6 sensitivity, 91.7 specificity, 94.1 PPV, 32.8 NPV, 5.0 LR , and 0.6 LR . Bla g allergen had 23.8 sensitivity, 98.3 specificity, 90.9 PPV, 64.4 NPV, 14.5 LR and 0.8 LR .Conclusion Serum specific IgE testing to Dermatophagoides pteronyssinus, Dermatophagoides farinae, Blomia tropicalis, and Blatella germanica allergens in patients with allergic asthma and or rhinitis showed only low to moderate sensitivity, but high specificity and PPV."

"Background: nowadays, specific IgE measurement has been conducted in Indonesia, however there is still lack of data regarding diagnostic test to detect inhalant allergen in patients with respiratory allergies.This study aimed to determine the accuracy of specific IgE test in diagnosing specific sensitization of inhalant allergen in patients with respiratory allergies.Methods: this was a cross sectional study in patients with respiratory allergies and part of epidemiology study regarding to specific IgE sensitization in Allergy-Immunollogy Division, Cipto Mangunkusumo Hospital, Jakarta within November-December 2016. Measurement of specific IgE sensitization using Immunoblot method (Euroline, Euroimmun AG, Germany). The tested allergen is house dust mites Dermatophagoides pteronyssinus (Der p), Dermatophagoides farinae (Der f), Blomia tropicalis (Blo t) and cockroach Blatella germanica (Bla g). The result is compared with gold standard, skin prick test. The diagnostic result includes sensitivity, specificity, positive predictive value (PPV), negative predictive value (NPV), positive likelihood ratio (LR+), and negative likelihood ratio (LR-).Results: a total of 101 patients were enrolled; 77 (76.2%) were women. Patients mean age was 38.8 years old. Based on SPT, sensitization was highest for Blo t (76.2%), followed by Der p (70.3%), Der f (69.3%), and Bla g (41.6%). Specific IgE-sensitization was highest for Der f (52.9%), followed by Der p (38.2%), Blo t (33.3%) and Bla g (10.8%). Der p allergen had 50.7% sentivity, 90% specificity, 92.3% PPV, 43.5% NPV, 5.1 LR+ and 0.1LR-. Der f showed 71.4% sensitivity, 87.1% specificity, 82.6% PPV, 57.4% NPV, 5.5 LR+ and 0.3 LR-. Blo t allergen had 41.6% sensitivity, 91.7% specificity, 94.1% PPV, 32.8% NPV, 5.0 LR+, and 0.6 LR-. Bla g allergen had 23.8% sensitivity, 98.3% specificity, 90.9% PPV, 64.4% NPV, 14.5 LR+ and 0.8 LR-.Conclusion: serum specific IgE testing to common inhalant allergen in patients with respiratory allergy showed only low-to-moderate sensitivity, but high specificity and PPV. This new assay can be used to diagnose allergen sensitization in the population with high prevalence of TDR and cockroach."