Glanzmann thrombasthenia

תיאור

Glanzmann thrombasthenia is a bleeding disorder that is characterised by prolonged or spontaneous bleeding starting from birth. People with Glanzmann thrombasthenia tend to bruise easily, have frequent nosebleeds (epistaxis), and may bleed from the gums. They may also develop red or purple spots on the skin caused by bleeding underneath the skin (petechiae) or swelling caused by bleeding within tissues (hematoma). Glanzmann thrombasthenia can also cause prolonged bleeding following injury, trauma, or surgery (including dental work). Women with this condition can have prolonged and sometimes abnormally heavy menstrual bleeding. Affected women also have an increased risk of excessive blood loss during pregnancy and childbirth.

About a quarter of individuals with Glanzmann thrombasthenia have bleeding in the gastrointestinal tract, which often occurs later in life. Rarely, affected individuals have bleeding inside the skull (intracranial hemorrhage) or joints (hemarthrosis).

The severity and frequency of the bleeding episodes in Glanzmann thrombasthenia can vary greatly among affected individuals, even in the same family. Spontaneous bleeding tends to become less frequent with age.

Inheritance patterns

The source lists the following possible inheritance patterns: Autosomal recessive. More than one pattern can apply in different cases.

Related genes

• ITGA2B

• ITGB3

Other names

Deficiency of glycoprotein complex IIb-IIIa

Deficiency of platelet fibrinogen receptor

Glanzmann disease

Glanzmann-Naegeli disorder

Glycoprotein IIb/IIIa defect

Hereditary hemorrhagic thrombasthenia

Hereditary thrombasthenia

Platelet fibrinogen receptor deficiency