Prognostic implications for direct platelet-associated IgG in childhood idiopathic thrombocytopenic purpura.

Journal Article (Journal Article)

To determine the value of the direct platelet associated IgG (PAIgG) level as a prognostic indicator in childhood idiopathic thrombocytopenia purpura (ITP), 18 children with ITP were studied. Ten of the 18 had PAIgG levels measured at diagnosis, before any therapy. Of these 10 patients, six (Group I) had an acute course, with a mean initial platelet count of 15 X 10(9)/liter and a mean initial PAIgG level of 330.9 fg/plt. Four patients (Group II) had a chronic course, with a mean initial platelet count of 11 X 10(9)/liter and a mean initial PAIgG level of 38.3 fg/plt. There was no significant difference between the mean initial platelet count of Groups I and II (p greater than 0.10), but the initial PAIgG levels in those patients with an acute course were significantly higher than the levels in those patients with a chronic course (p less than 0.05). Of the original 18 patients, nine were splenectomized for chronic thrombocytopenia, with normalization of the platelet count in all instances. Of these splenectomized patients, five had platelet counts and PAIgG levels measured before and after splenectomy. All five had normal PAIgG levels following splenectomy. The PAIgG level is a good prognostic indicator for the clinical course of childhood ITP. A high PAIgG level suggests an acute course while a modestly elevated level suggests a chronic course. The PAIgG level normalizes in remission after splenectomy.

Full Text

Duke Authors

Cited Authors

  • Ware, R; Kinney, TR; Friedman, HS; Falletta, JM; Rosse, WF

Published Date

  • 1986

Published In

Volume / Issue

  • 8 / 1

Start / End Page

  • 32 - 37

PubMed ID

  • 3717516

International Standard Serial Number (ISSN)

  • 0192-8562

Digital Object Identifier (DOI)

  • 10.1097/00043426-198608010-00007


  • eng

Conference Location

  • United States