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Predicting response to splenectomy in children with immune thrombocytopenic purpura. | LitMetric

AI Article Synopsis

Article Abstract

Purpose: Predicting the response to splenectomy in children with immune thrombocytopenic purpura (ITP) continues to be a clinical challenge. The purpose of this study is to identify preoperative predictors of outcome for splenectomy in children with ITP.

Methods: The charts of 19 children who underwent splenectomy for ITP were retrospectively reviewed. Platelet responses to treatment are categorized as complete response (CR, > or =150,000/microL), partial response (PR, > or =50,000 but <150,000/microL), or nonresponse (NR, <50,000/microL).

Results: After splenectomy, 13 patients (68%) had CR, 3 (16%) had PR, and 3 (16%) had NR. No correlation existed between CR to splenectomy and any of the following: age, platelet count at diagnosis, last platelet count before splenectomy, platelet count on postoperative day 1, or responses to preoperative intravenous immunoglobulin, WinRho, or Rituximab. However, all 7 patients who had NR to a full course of steroids subsequently had CR to splenectomy. Nonresponse to steroid therapy was directly correlated with CR to splenectomy (P = .01, Fisher's Exact test). Furthermore, postsplenectomy platelet counts were inversely related to peak platelet response to steroids (correlation coefficient = -0.68, P = .01).

Conclusions: Preoperative responsiveness to steroid therapy, as measured by peak platelet count, predicts NR to splenectomy for ITP in children, whereas NR to steroid therapy is highly correlated with CR to splenectomy. These findings challenge the widely held notion that steroid responsiveness portends a favorable outcome after splenectomy.

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Source
http://dx.doi.org/10.1016/j.jpedsurg.2009.10.026DOI Listing

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