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2025, Number 6

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Rev Fac Med UNAM 2025; 68 (6)

Refractory Thrombotic Thrombocytopenic Purpura: A Case Report

Urbina CV, Cantú VLG, Alcantar MDA, Martínez VA
Full text How to cite this article

Language: Spanish
References: 10
Page: 25-30
PDF size: 157.39 Kb.


Key words:

Thrombocytopenic purpura, ADAMTS13, plasmapheresis, platelets, rituximab.

ABSTRACT

Refractory thrombotic thrombocytopenic purpura is characterized by a persistent or passing decrease in platelet count, which increases the risk of bleeding depending on the degree of thrombocytopenia. This condition results from an imbalance between megakaryocyte platelet production and their accelerated destruction. Additionally, platelet production is affected by two main mechanisms: 1) intramedullary destruction of antibody-coated platelets by macrophages and 2) inhibition of megakaryopoiesis. The chronic form of the disease can be described as lasting longer than six months, and while spontaneous remissions may occur, they are infrequent. This manuscript reviews the risk factors, clinical manifestations, and available treatment options for managing a 42-year-old patient diagnosed with this condition.


REFERENCES

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Rev Fac Med UNAM . 2025;68