Hereditary protein C deficiency

Area of Science:

• Genetics and Thrombosis
• Hematology

Background:

• Hereditary protein C deficiency is an autosomal-dominant condition.
• It significantly elevates the risk of venous thrombotic events.

Purpose of the Study:

• To outline the clinical manifestations of protein C deficiency.
• To discuss therapeutic strategies for thrombotic complications.

Main Methods:

• Literature review of hereditary protein C deficiency.
• Analysis of treatment outcomes for thrombotic events.

Main Results:

• Heterozygotes experience various venous thromboses, including DVT and PE.
• Severe deficiency (homozygous) can lead to purpura fulminans.
• Coumarin therapy prevents thrombosis in heterozygotes but risks skin necrosis.
• Replacement therapy or coumarin can treat purpura fulminans.
• Heparin is ineffective for purpura fulminans and coumarin-induced skin necrosis.

Conclusions:

• Protein C deficiency necessitates careful management of thrombotic risks.
• Coumarin therapy is effective but requires monitoring for side effects.
• Alternative treatments exist for severe manifestations like purpura fulminans.