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KMID : 1130320150580040129
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Korean Journal of Pediatrics
2015 Volume.58 No. 4 p.129 ~ p.135
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Long-term outcome of patients with p22phox-deficient chronic granulomatous disease on Jeju Island, Korea
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Kang Hyun-Sik
Hwang Geol
Shin Kyung-Sue
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Abstract
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Purpose: This study investigated the long-term clinical outcomes of patients with p22phox-deficient chronic granulomatous disease (CGD) on Jeju Island and retrospectively evaluated the effects of interferon-gamma (IFN-γ) prophylaxis.
Methods: The medical records of 15 patients with CGD were retrospectively reviewed. The efficacy of IFN-γ prophylaxis was evaluated by comparing the frequency of severe infections before and after starting continuous prophylaxis with IFN-γ.
Results: At the time of the analysis, 14 patients were alive, with a median age of 14.3 years. The diagnosis of CGD was made at a median age of 2.4 years, and the median age at onset of severe infection was 0.3 years. Thirteen of the 15 patients had their first severe infection within the first year of life. The overall incidence of severe infection was 1.36 infections per patient-year; pneumonia, suppurative lymphadenitis, and skin and subcutaneous abscesses were the most common infections. Aspergillus species were the most frequently isolated microorganisms, present in 15.8% of isolates. IFN-γ did not significantly change the rate of severe infection. The survival rate for patients after 2 years of age was 93%; there was a prolonged survival plateau beyond the age of 2.
Conclusion: Compared with cases of X-linked CGD reported in other studies, patients with CGD on Jeju Island did not show obviously different clinical manifestations, but they had a significantly higher survival rate. Further studies with a substantially longer period of observation, and with more patients under intensive surveillance are necessary to elucidate the prophylactic efficiency of IFN-γ.
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KEYWORD
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Chronic granulomatous disease, Interferon-gamma, Human CYBA protein
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