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Review Article
Mechanisms of Disease
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Volume 347:589-600 August 22, 2002 Number 8
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Thrombotic Microangiopathies
Joel L. Moake, M.D.

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The thrombotic microangiopathies are microvascular occlusive disorders characterized by systemic or intrarenal aggregation of platelets, thrombocytopenia, and mechanical injury to erythrocytes. In thrombotic thrombocytopenic purpura, systemic microvascular aggregation of platelets causes ischemia in the brain and other organs. In the hemolytic–uremic syndrome, platelet–fibrin thrombi occlude predominantly the renal circulation. Thrombotic thrombocytopenic purpura was initially described by Moschcowitz in 1924,1 and the hemolytic–uremic syndrome by Gasser et al.2 in 1955. Both disorders remained mysterious until the 1980s. In 1982, "unusually large" multimers of von Willebrand factor released from endothelial cells were found to accumulate in the plasma of patients with chronic . . . [Full Text of this Article]

Clinical Presentations

Pathophysiology

Thrombotic Thrombocytopenic Purpura

The Hemolytic–Uremic Syndrome

Deficiency of Plasma Factor H

Renal or Systemic Thrombotic Microangiopathies of Unknown Causes

Therapy

Thrombotic Thrombocytopenic Purpura

The Hemolytic–Uremic Syndrome

Overview of Therapy


Source Information

From Baylor College of Medicine and Rice University — both in Houston.

Address reprint requests to Dr. Moake at the Hematology–Oncology Section, Methodist Hospital, MS 902, Main Bldg., 6565 Fannin, Houston, TX 77030, or at jmoake@rice.edu.


Related Letters:

Thrombotic Microangiopathies
Tarr P. I., Tsai H.-M., Chandler W. L., Nzerue C. M., Moake J. L.
Extract | Full Text | PDF  
N Engl J Med 2002; 347:2171-2173, Dec 26, 2002. Correspondence

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