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Congenital platelet function defects

Definition

Alternative Names

Platelet storage pool disorder; Glanzmann's thrombasthenia; Bernard-Soulier syndrome; Platelet function defects - congenital

Causes

Congenital platelet function defects are bleeding disorders that cause reduced platelet function, even though there are normal platelet counts.

Most of the time, people with these disorders have a family history of a bleeding disorder. Bernard-Soulier syndrome occurs when platelets lack a substance that sticks to the walls of blood vessels. This disorder may cause severe bleeding.

  • Glanzmann's thrombasthenia is a condition caused by the lack of a protein needed for platelets to clump together. This disorder may also cause severe bleeding.
  • Platelet storage pool disorder (also called platelet secretion disorder) is due to a defect that cause easy bleeding or bruising. It is caused by the faulty storage of substances inside platelets. These substances are usually released to help platelets function properly.

Symptoms

  • Bleeding during and after surgery
  • Bleeding gums
  • Easy bruising
  • Heavy menstrual periods
  • Nosebleeds
  • Prolonged bleeding with small injuries

Exams and Tests

The following tests may be used to diagnose this condition:

You may need other tests. Your relatives may need to be tested.

Treatment

There is no specific treatment for these disorders.

People with bleeding disorders should avoid taking aspirin and nonsteroidal anti-inflammatory drugs (such as ibuprofen and naproxen) because they are known to affect blood clotting. Patients who have severe bleeding may need platelet transfusions.

Outlook (Prognosis)

Possible Complications

When to Contact a Medical Professional

Call your health care provider if:

  • You have bleeding or bruising and do not know the cause.
  • Bleeding does not respond to the usual method of control.

Prevention

References

Macartney CA, Paredes N, Chan AKC. Disorders of Coagulation in the Neonate. In: Hoffman R, Benz EJ Jr, Silberstein LE, Heslop HE, Weitz JI, eds. Hematology: Basic Principles and Practice. 6th ed. Philadelphia, PA: Saunders Elsevier; 2012:chap 152.

Nichols WL.Von Willebrand Disease and Hemorrhagic Abnormalities of Platelet and Vascular Function. In: Goldman L, Schafer AI, eds. Goldman's Cecil Medicine. 24th ed. Philadelphia, PA: Saunders Elsevier; 2011:chap 176.


Review Date: 3/3/2013
Reviewed By: Yi-Bin Chen, MD, Leukemia/Bone Marrow Transplant Program, Massachusetts General Hospital. Also reviewed by A.D.A.M. Health Solutions, Ebix, Inc., Editorial Team: David Zieve, MD, MHA, Bethanne Black, Stephanie Slon, and Nissi Wang.
The information provided herein should not be used during any medical emergency or for the diagnosis or treatment of any medical condition. A licensed medical professional should be consulted for diagnosis and treatment of any and all medical conditions. Call 911 for all medical emergencies. Links to other sites are provided for information only -- they do not constitute endorsements of those other sites. © 1997- A.D.A.M., Inc. Any duplication or distribution of the information contained herein is strictly prohibited.
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