Platelet function in a patient with thrombasthenia.

Hemorrhage Treatment Report of Patients Suffering from Glanzmann’s Thrombasthenia Resulting Hospitalization from 2006 to 2011 at Mofid Children’s Hospital

Background: The present study evaluated treatment outcomes and the treatment indexes among Glanzmann’s patients in Mofid Children’s Hospital, Tehran, Iran. Patients and Methods: A retrospective cross-sectional study was performed to evaluate the treatment protocols on 15 Glanzmann’s patients with bleeding therapeutic records in Mofid Children’s Hospital, Tehran, Iran, from 2006 to 2011. Resu...

Density of Platelet GPIIb-IIIa and Bleeding Severity in Iranian Patients with Glanzmann’s Thrombasthenia

Microparticle Formation and Platelet Shrinkage in Type-I Glanzmman Thrombasthenia Platelets

Background: Activated normal platelets undergo many biochemical and morphological changes, some of which are apoptotic. Platelet derived microparticles and shrinked platelets as hallmark of platelet activation and apoptosis disperse surfaces containing procoagulant activity around injured vessels and tissues. This study was conducted to determine microparticles formation and platelet shrinkage ...

Acquired thrombasthenia due to inhibitory effect of glycoprotein IIbIIIa autoantibodies.

BACKGROUND A 75 year old patient presenting with mucocutaneous bleeding was diagnosed with acquired thrombasthenia. The diagnosis was based on lack of platelet aggregation with adenosine diphosphate (ADP), arachidonic acid and collagen, and normal aggregation induced by ristocetin. OBJECTIVE To study the mechanism of platelet function inhibition in a patient with acquired thrombasthenia. ME...

Platelet transfusion in a patient affected by Glanzmann's thrombasthenia with antibodies against GPIIb-IIIa.

Patients affected by Glanzmann's thrombasthenia often require blood and platelet transfusions due to bleeding. They may develop antibodies against platelet antigens and become refractory to platelet transfusions. In this study we present our approach to platelet transfusion in a thrombasthenic patient with platelet antibodies directed against gpIIb/IIIa. We found that platelets from two HPA1b/b...

A variant of Glanzmann's thrombasthenia with abnormal glycoprotein IIb-IIIa complexes in the platelet membrane.

Patient C.M. presented platelet function defects symptomatic of Glanzmann's thrombasthenia. However, analysis of surface-labeled platelets by SDS-polyacrylamide gel electrophoresis revealed the usual presence of the major glycoproteins, including GP IIb and GP IIIa. Platelet fibrinogen was not detected. Analysis of Triton X-100 extracts of Ca2+-washed C.M. platelets by crossed immunoelectrophor...