Selective IgG subclass deficiencies in patients with recurrent sinopulmonary infections: report of two cases.
Chou, C C; Hsieh, K H; Lin, Y Z; Ting, C K; Wang, J Y.
Asian Pac J Allergy Immunol
; 1988 Dec; 6(2): 129-33
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| IMSEAR | ID: sea-36771
Two patients with recurrent sinopulmonary infections and normal total serum immunoglobulin levels were found to have selective deficiencies in IgG subclasses. The serum of one patient contained abnormally low IgG2 and IgG4; and the other was deficient in IgG4. Both patients responded to the treatment with high dose intravenous immunoglobulin. The experiences on these two cases strongly suggest that IgG subclasses should be checked in patients with recurrent sinopulmonary infections in face of normal total immunoglobulins.
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