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Protein C deficiency.

N A Goldenberg¹, M J Manco-Johnson

¹Hemophilia & Thrombosis Center, Department of Pediatrics, University of Colorado Denver and The Children's Hospital, Aurora, CO, USA.

Haemophilia : the Official Journal of the World Federation of Hemophilia

|January 15, 2009

Summary

This summary is machine-generated.

Severe protein C deficiency, a rare genetic disorder, causes life-threatening blood clots like purpura fulminans and DIC, especially in newborns. Management involves protein C replacement and anticoagulation for acute events and long-term care.

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Area of Science:

Hematology
Genetics
Pediatrics

Background:

Severe protein C deficiency is a rare autosomal recessive disorder.
It typically manifests in neonates with purpura fulminans (PF), disseminated intravascular coagulation (DIC), and venous thromboembolism (VTE).
Mild protein C deficiency may be asymptomatic or present with recurrent VTE.

Purpose of the Study:

To review the clinical presentation, pathophysiology, and management of protein C deficiency.
To highlight the genetic basis and thrombotic complications associated with protein C deficiency.
To discuss current and potential future therapeutic strategies.

Main Methods:

Review of literature on protein C deficiency.
Analysis of clinical phenotypes and genetic mutations.
Summary of management strategies for acute and long-term care.

Main Results:

Severe protein C deficiency leads to impaired inactivation of factors Va and VIIIa.
Mutational analysis reveals diverse genetic causes.
Management includes protein C concentrate replacement and anticoagulation for acute events and prophylaxis.

Conclusions:

Protein C deficiency presents a spectrum from severe neonatal thrombotic events to milder, risk-factor-associated VTE.
Effective management with protein C replacement and anticoagulation can improve outcomes.
Further research is needed for optimal preventive and therapeutic strategies.