Purpura fulminans neonatalis D68.8

Author: Prof. Dr. med. Peter Altmeyer

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Last updated on: 31.10.2023

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Definition
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Extensive skin ecchymosis with development of necrosis in addition to visceral thrombosis and embolism occurring in the first hours or days of life.

In heterozygous protein C deficiency, patients are often clinically asymptomatic, possibly recurrent thrombophlebitis, thrombosis, embolism or necrosis after coumarin treatment.

Etiopathogenesis
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Homozygous protein C deficiency, due to autosomal dominant mutations in the PROC gene located on chromosome 2q14.3.

Therapy
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Treatment by the pediatrician. Fresh frozen plasma (FFP), vitamin K antagonists, protein C substitution.

Progression/forecast
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Untreated: 100% lethality. Long-term prognosis uncertain even with therapy.

Literature
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  1. Ding Q et al. (2015) Protein C Thr315Ala variant results in gain of function but manifests as type II deficiency in diagnostic assays. Blood 125:2428-2434
  2. Kovács KB et al (2015) Molecular characterization of p.Asp77Gly and the novel p.Ala163Val and p.Ala163Glu mutations causing protein C deficiency. Thromb Res 135:718-726.

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PROC gene;

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Last updated on: 31.10.2023