Congenital antithrombin III deficiency is a genetic disorder that causes the blood to clot more than normal.
Deficiency - antithrombin III - congenital; Antithrombin III deficiency - congenital
Antithrombin III is a protein in the blood that blocks abnormal blood clots from forming. It helps the body keep a healthy balance between bleeding and clotting. Congenital antithrombin III deficiency is an inherited disease. It occurs when a person receives one abnormal copy of the antithrombin III gene from a parent with the disease.
The abnormal gene leads to a low level of the antithrombin III protein. This low level of antithrombin III can cause abnormal blood clots (thrombi) that can block blood flow and damage organs.
People with this condition will often have a blood clot at a young age. They are also likely to have family members who have had a blood clotting problem.
People will usually have symptoms of a blood clot. Blood clots in the arms or legs usually cause swelling, redness, and pain. When a blood clot breaks off from where it formed and travels to another part of the body, it is called a thromboembolism. Symptoms depend on where the blood clot travels to. A common place is the lung, where the clot can cause a cough, shortness of breath, pain while taking deep breaths, chest pain, and even death. Blood clots that travel to the brain can cause a stroke.
A blood clot is treated with blood-thinning medicines (also called anticoagulants). How long you need to take these drugs depends on how serious the blood clot was and other factors. Discuss this with your provider.
Javier Corral is a Hematologist Oncology doctor in El Paso, Texas. Dr. Corral has been practicing medicine for over 38 years and is rated as an Elite doctor by MediFind in the treatment of Congenital Antithrombin 3 Deficiency. He is also highly rated in 19 other conditions, according to our data. His top areas of expertise are Congenital Antithrombin 3 Deficiency, Mesenteric Venous Thrombosis, Factor 11 Deficiency, and Hereditary Angioedema. He is board certified in Hematology/oncology and Internal Medicine and licensed to treat patients in Texas. Dr. Corral is currently accepting new patients.
Maria Barrio-De La Morena is in Murcia, Spain. Barrio-De La Morena is rated as an Elite expert by MediFind in the treatment of Congenital Antithrombin 3 Deficiency. She is also highly rated in 8 other conditions, according to our data. Her top areas of expertise are Congenital Antithrombin 3 Deficiency, Factor 11 Deficiency, PMM2-Congenital Disorder of Glycosylation, and Blood Clots.
Belen Barrio-De La Morena is in Murcia, Spain. Barrio-De La Morena is rated as an Elite expert by MediFind in the treatment of Congenital Antithrombin 3 Deficiency. She is also highly rated in 5 other conditions, according to our data. Her top areas of expertise are Congenital Antithrombin 3 Deficiency, Mesenteric Venous Thrombosis, Factor 11 Deficiency, and Blood Clots.
More information and support for people with congenital antithrombin III deficiency and their families can be found at:
Most people have a good outcome if they stay on anticoagulant medicines.
Blood clots can cause death. Blood clots in the lungs are very dangerous.
See your provider if you have symptoms of this condition.
Once a person is diagnosed with antithrombin III deficiency, all close family members should be screened for this disorder. Blood thinning drugs can prevent blood clots from forming and prevent complications from clotting.
Anderson JA, Hogg KE, Weitz JI. Hypercoagulable states. In: Hoffman R, Benz EJ, Silberstein LE, et al, eds. Hematology: Basic Principles and Practice. 7th ed. Philadelphia, PA: Elsevier; 2018:chap 140.
Mhyre JM. Hematologic and coagulation disorders. In: Chestnut DH, Wong CA, Tsen LC, et al, eds. Chestnut's Obstetric Anesthesia: Principles and Practice. 6th ed. Elsevier; 2020:chap 44.
Schafer AI. Thrombotic disorders: hypercoagulable states. In: Goldman L, Schafer AI, eds. Goldman-Cecil Medicine. 26th ed. Philadelphia, PA: Elsevier; 2020:chap 73.