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Very high immunoglobulin E levels in children: when from pediatrician to immunologist?
Funda Erol Cipe1, Gonca Keskindemirci2,3
1Department of Pediatric Allergy-Immunology, Kanuni Sultan Suleyman Research and Training Hospital, Health Sciences University of Istanbul, Istanbul, Türkiye - ferol76tr@hotmail.com.
Background:
Total serum immunoglobulin E (IgE) is increased in many situations such as allergic diseases, primary immunodeficiencies (PID), parasitosis, infections and malignancies. When IgE levels are >1000 kU/L PIDs are suspected by pediatricians. We tried to define some clinical and laboratory parameters to distinguish PID from the others.
Methods:
We evaluated 158 children between 1.7-17 years (mean: 6.6±3.4) for allergic diseases, PID, parasitosis and others. Total IgE, specific IgE, immunoglobulin levels and skin prick tests were performed to all patients. Parasite investigations, viral serological tests and detailed immunologic tests were analyzed in only patients who had suspected complaints. Hyper IgE syndrome (HIES) scoring sheet was filled out for all patients.
Results:
Among all patients, 114 were diagnosed as bronchial asthma, allergic rhino-conjunctivitis or atopic dermatitis. PID diagnosis was established in totally 32 patients. Immunological evaluations were normal in 126 patients. Eleven patients were accepted as parasitosis. Median HIES score was 18 (5-44 points).
Conclusions:
Pediatricians may use HIES scoring sheet when they suspect a patient with PID. If the patient has very low points, they may follow the patient. If there are about 18-20 points, they should get an opinion from an immunologist for detailed immunologic tests.
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