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The Incidence of Thrombocytopenia in Children with Cornelia de Lange Syndrome
Journal article   Open access   Peer reviewed

The Incidence of Thrombocytopenia in Children with Cornelia de Lange Syndrome

Michele P. Lambert, Laird G. Jackson, Dinah Clark, Mani Kaur, Ian D. Krantz and Matthew A. Deardorff
American journal of medical genetics. Part A, v 155A(1), pp 33-37
10 Dec 2010
PMID: 21204208
url
https://europepmc.org/articles/pmc3058755View
Accepted (AM)Open Access (License Unspecified) Open

Abstract

cornelia de lange immune thrombocytopenia ITP thrombocytopenia
Thrombocytopenia was first reported in Cornelia de Lange Syndrome (CdLS) by Froster in 1993. Despite early reports, thrombocytopenia has been rarely reported in this disorder. We performed a retrospective analysis of a large cohort of patients with CdLS. We calculated prevalence of thrombocytopenia in 3 subsets of this cohort: the entire cohort (n=1740), a subset of subjects with substantial clinical records (n=695) and a subset of subjects with clinical information regarding platelet counts (n=85). This analysis revealed that 15 have had thrombocytopenia (18% of those with available blood counts); seven had Immune ThrombocytoPenia (ITP). The reported prevalence of pediatric ITP is between 5-13 per 100,000 persons. The prevalence of ITP in this cohort is between 7/1740 and 7/85, giving a relative risk of ITP of between 30 (CI 12 to 77) and 633 (CI 259-1549). Contrary to the reported cases in the literature, none of our patients have had progression of the thrombocytopenia nor have they developed other cytopenias. All 15 patients with thromobocytopenia had CdLS based on clinical criteria. Of the 10 patients tested for mutations in NIBPL , eight had mutations identified. These data support an increased incidence of thrombocytopenia and ITP in CdLS. Subsequently, patients are at risk for spontaneous hemorrhage, and likely increased risk secondary to the high frequency of self-injurious behavior. Although further studies are needed to better define the scope of the problem and to define the mechanisms of thrombocytopenia in CdLS, we would recommend screening for thrombocytopenia upon diagnosis and at five-year intervals thereafter.

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Collaboration types
Domestic collaboration
Web of Science research areas
Genetics & Heredity
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