eMedicine Specialties > Hematology > Coagulation, Hemostasis, and Disorders
Glanzmann Thrombasthenia: Differential Diagnoses & Workup
Updated: Nov 20, 2008
- Overview
- Differential Diagnoses & Workup
- Treatment & Medication
- Follow-up
Differential Diagnoses
Platelet Disorders
von Willebrand Disease
Wiskott-Aldrich Syndrome
Other Problems to Be Considered
- Afibrinogenemia (see also Inherited Abnormalities of Fibrinogen [in the Pediatrics: General Medicine section] and Hemostatic Disorders, Nonplatelet)
- Autoantibodies to GP IIa/IIIb
- Bernard-Soulier syndrome and other qualitative platelet disorders (eg, gray platelet syndrome, platelet-type von Willebrand disease, or platelet storage pool defects)
Workup
Laboratory Studies
The workup for Glanzmann thrombasthenia may include the following:
- Complete blood cell (CBC) count, prothrombin time (PT), and activated partial thromboplastin time (aPTT)
- The platelet count and other coagulation tests should be normal, although the red blood cell count may be decreased due to bleeding and/or concomitant iron deficiency.
- The bleeding times should be prolonged.
- The Platelet Function Analyzer 100 (PFA-100) is a device that may be helpful in determining the cause of bleeding diathesis. Patients with Glanzmann thrombasthenia fail to plug the collagen-based filter.
- Flow cytometry and monoclonal antibodies confirm the diagnosis of Glanzmann thrombasthenia.
- Platelet aggregation studies
- The primary platelet aggregation response to platelet agonists such as adenosine diphosphate (ADP), epinephrine, and collagen are decreased, whereas the response to ristocetin is normal.
- If the secondary platelet aggregation response is abnormal, suspect a platelet storage pool defect or an abnormality in platelet signal transduction.
Histologic Findings
The platelet morphology on peripheral blood smears is normal in patients with Glanzmann thrombasthenia.
More on Glanzmann Thrombasthenia |
| Overview: Glanzmann Thrombasthenia |
Differential Diagnoses & Workup: Glanzmann Thrombasthenia |
| Treatment & Medication: Glanzmann Thrombasthenia |
| Follow-up: Glanzmann Thrombasthenia |
| References |
| Further Reading |
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References
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Malik U, Dutcher JP, Oleksowicz L. Acquired Glanzmann's thrombasthenia associated with Hodgkin's lymphoma: a case report and review of the literature. Cancer. May 1 1998;82(9):1764-8. [Medline]. [Full Text].
Nurden AT. Glanzmann thrombasthenia. Orphanet J Rare Dis. Apr 6 2006;1:10. [Medline]. [Full Text].
Poon MC, Zotz R, Di Minno G, et al. Glanzmann's thrombasthenia treatment: a prospective observational registry on the use of recombinant human activated factor VII and other hemostatic agents. Semin Hematol. Jan 2006;43(1 suppl 1):S33-6. [Medline].
Poon MC. Clinical use of recombinant human activated factor VII (rFVIIa) in the prevention and treatment of bleeding episodes in patients with Glanzmann's thrombasthenia. Vasc Health Risk Manag. 2007;3(5):655-64. [Medline]. [Full Text].
Saxena R, Kannan M. Glanzmann's thrombasthenia: an overview. Clin Appl Thromb Hemost. Oct 16 2008;epub ahead of print. [Medline].
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Ali N, Moiz B, Shaikh U, et al. Diagnostic tool for Glanzmann's thrombasthenia clinicopathologic spectrum. J Coll Physicians Surg Pak. Feb 2008;18(2):91-4. [Medline].
Jin PP, Shen WZ, Yang F, et al. [Analysis of clinical features and genotype in three Chinese pedigrees with Glanzmann thrombasthenia]. Zhonghua Xue Ye Xue Za Zhi. Mar 2008;29(3):149-53. [Medline].
Lombardo VT, Sottilotta G. Recombinant activated factor VII combined with desmopressin in preventing bleeding from dental extraction in a patient with Glanzmann's thrombasthenia. Clin Appl Thromb Hemost. Jan 2006;12(1):115-6. [Medline].
Shen WZ, Ding QL, Jin PP, et al. A novel Pro126His beta propeller mutation in integrin alphaIIb causes Glanzmann thrombasthenia by impairing progression of pro-alphaIIbbeta3 from endoplasmic reticulum to Golgi. Blood Cells Mol Dis. Oct 29 2008;epub ahead of print. [Medline].
Vuckovic SA. Glanzmann's thrombasthenia revisited. J Emerg Med. May-Jun 1996;14(3):299-303. [Medline].
Keywords
Glanzmann thrombasthenia, thrombasthenia, Glanzmann disease, Glanzmann's thrombasthenia, platelet glycoprotein GPIIb-IIIa complex, blood platelet disorders, hemorrhagic disorders, genetic platelet disorders, platelet glycoprotein IIB, GP IIb, platelet glycoprotein IIIa, GP IIIa, GP IIa/IIIb, defective platelet aggregation, von Willebrand factor, vWF, bleeding
Differential Diagnoses & Workup: Glanzmann Thrombasthenia