[Clinical significance of the determination of total serum IgE in periarteritis nodosa in children].
The content of IgE was measured over time in 14 children with periarteritis nodosa. No significant relation was established between allergic reactions in the anamnesis and IgE elevation in periarteritis nodosa. A relationship was discovered between the rise of IgE content and disease activity, the intensity of the clinical manifestations, vascular ones in particular. During a remission of periarteritis nodosa, the content of IgE remained within normal in all the children.