Factor V Leiden Thrombophilia Thrombophilia is a disorder that contains several genetic components that can cause an individual to form arterial and venous thrombi more readily. Many serious medical complications can result from thrombus formations that are often times fatal. In fact, a venous thromboembolism (VTE) is relatively common and a thrombosis of the deep veins of the legs or pelvis can lead to morbidity and mortality. Small portions of this patient population even develop pulmonary emboli (PE), which can be fatal. This major medical problem affects 1 in 1,000 persons per year and approximately 1 in 130 Americans younger than age 65 develop a VTE (Crow, 2003; Kujovich, 2011). Interestingly enough, inherited thrombophilia can be identified in half of the patients presenting with VTE (Kujovich, 2011). In 1993, European investigators Dahlback and his colleagues recognized a new mechanism for familial thrombophilia. Their research was initiated in order to investigate the cause for a number of young adults that presented with VTE, who had a family history of thrombosis but no detectable genetic link. As a result, a previously unrecognized mechanism associated with activated protein C resistance (APCR) was found – Factor V Leiden mutation (Crow, 2003). Factor V Leiden is considered the single most common cause of hereditary thrombophilia and is often linked to thrombosis due to hereditary hypercoagulability. Studies have indicated that factor V Leiden is a
3. What is it about the inheritance pattern of factor viii deficiency seen in Greg and Olga’s pedigree that point toward it not being an autosomal recessive trait?
According to the National Hemophilia Foundation (n.d.), von Willebrand disease (VWD) is a genetic disorder caused by missing or defective von Willebrand factor (VWF), a clotting protein. VWF binds factor VIII, a key clotting protein, and platelets in blood vessel walls, which help form a platelet plug during the clotting process. The condition is named after Finnish physician Erik von Willebrand, who first described it in the 1920s (National Hemophilia Foundation, n.d.). The seriousness of the bleeding varied between family
Hemophilia is an X-linked recessive disease in which blood lacks blood-clotting proteins. Females have two X chromosomes, indicating that they are generally carriers and transmit the gene to their sons. People with mild hemophilia bleed after surgery, injury, or trauma. Severe hemophilia produces spontaneous internal bleeding in joints and muscles. Fortunately, medicines and lifestyle changes offers hemophiliacs fairly normal lives. Through learning about hemophilia, I became interested in genetic diseases and finding a cure for those
It inhibits thrombosis by inactivating co-factors Va, and VIIIa (Neyrinck, 2009). When deficient, Factor V can cause excessive blood clotting and Factor VIII, being an essential clotting factor, can cause blood to profusely move out of tissues once cut or damaged (Faust, 2001 and Yan, 2001). Thrombin may become limited, one reason being the decrease of plasma D-dimer, which again stimulates fibrinolysis (Bernard, 2001).
Venous thromboembolism (VTE) is an epidemic that rain rapid in Australia and was a very big concern. The study of this sickness was a major Problem as it had affected the demographic area of Perth, Australia. The epidemic is a very big problem as VTE is connected with the trauma, surgery, and cancer and this sickness is caused while
The genetic disorder of Hemophilia is where the clotting factors of the blood are absent or deficient, causing it to be a dangerous disorder to the people who have it. This disorder is where the people who have it will bleed easily and accessibly. Different types of hemophilia are classified by different deficient clotting factors in the blood. Treatments for hemophilia are available, including transfusions of frozen
Venous thrombosis and arterial thrombosis are considered to be distinct pathophysiological processes due to their evident anatomical variances. With one having to deal with platelet activation while the other involving the clotting system activation, arterial thrombosis and venous thrombosis are similar yet vastly different when it comes to the processes that are performed for the body. These same processes that help the body have to be performed accordingly or the signs and symptoms begin to show. For instance, venous thrombosis can lead to Chronic Venous Insuffiency and other issues when a body part is congested. This is most commonly causes by valvular incompetence in the low-pressure superficial venous system; however, it can also be causes
Factor V Leiden as named after the Dutch city Leiden in which it was discovered. Factor V Leiden is a genetic blood clotting disorder that results from a mutation of the Factor V gene. Most of the time you will inherit Factor V Leiden from your family. If kept under control blood clots are mostly harmless, but if left uncared you can have a piece of the blood clot break and enter your lung there it will cause serious damage like a heart attack or stroke.
Cerebral venous thrombosis (CVT) is a rare type of cerebrovascular disease, accounting for 0.5% of all strokes. The annual incidence of CVT ranges 3–4 cases per million populations CVT is a multifactorial disease, with at least one predisposing factor identified in 80% of patients, including hereditary thrombophilia, pregnancy and puerperium, postoperative state, intracranial or local infections and use of oral contraceptives. Genetic or acquired thrombophilia, identified in more than 20% of the CVT patients, is among the most frequent identified risk
We present a case of a 31-year-old Caucasian woman with a massive recurrent venous thrombosis, including central venous thrombosis and vena cava thrombosis. She presented to our emergency department with persistent headache. Neurologic examination revealed bilateral papilledema. Brain computed tomographic venography confirmed venous thrombosis. Headaches were improved after treatment of heparin and warfarin. One month later the patient was readmitted with facial edema and venous engorgement with extensive collateral circulation. The Computed tomography angiography revealed signs of extensive cervical, thoracic and abdominal collateral circulation as well as superior vena cava thrombosis superior. A composed heterozygosity mutations were found
Etiology: von Willebrand disease is an inherited defect in the gene that controls von Willebrand factor which is a protein that plays a key role in your blood-clotting process. When von Willebrand factor is scarce or not functioning properly because of structural abnormalities, thrombocytes(platelets) cannot stick together properly, nor can they attach themselves normally to the blood vessel walls when an injury has occurred. The result is interference with the blood clotting process and
Hemophilia is the oldest known hereditary bleeding disorder. There are two types of hemophilia, A and B (Christmas Disease). Low levels or complete absence of a blood protein essential for clotting causes both. Patients with hemophilia A lack the blood clotting protein, factor VIII, and those with hemophilia B lack factor IX. A person with severe hemophilia has less than 1% of the normal amount of a clotting factor - either Factor VIII (8) or Factor IX (9). People without hemophilia have between 50-150% of the normal level of factor VIII or IX. There are about 20,000 hemophilia patients in the United States. Each year, about 400 babies are born with this disorder. Approximately 85% have hemophilia A and the remainder has hemophilia B.
It was hypothesised by Rudolph Virchow that irregularities in three parts (Virchow’s triad) lead to the formation and spreading of thrombus. Nowadays it is achievable to measure some of the influences that increase the development of venous thromboembolism (VTE) and other cardiovascular syndromes. The Virchow’ triad suggested that the formation and proliferation of thrombus was caused by (i) blood flow, (ii) vessel wall and (iii) blood components. Irregularities in any of these three areas can lead to formation of thrombus.
Cancer patients with Factor V Leiden (rs6025), Factor VHR2 haplotype (rs1800595) prothrombin G20210A (rs1799963), PAI-1 4G/5G (rs1799889), MTHFR 677C>T (rs1801133), and factor XIII Val34Leu (rs5985) have a many fold increased risk for developing VTE compared to cancer patients without these hereditary risk factors [15,16]. A potential effect of polymorphisms in clotting factors on cancer risk would be relevant scientifically and clinically and have determining role in management and treatment of such patients. Studies have been undertaken in a number of populations for such risk assessments but no such study has been undertaken in Saudi population till date. With increased burden of Cancer in Saudi Arabia study of risk factors is highly warranted to decrease cancer associated mortality and morbidity and improve the quality of life of such patients. We shall genotype factor V Leiden (FVL), Factor VHR2 haplotype (FVHR2), prothrombin G20210A (PT G20210A), PAI-1 4G/5G, MTHFR 677C>T, and factor XIII Val34Leu (FXIII Val34Leu) in cancer patients and controls to identify these as risk
These findings are important because it has long been debated whether elevated fibrinogen causes thrombosis or not. There are clearly a number of mechanisms by which higher levels of fibrinogen could cause thrombosis, including increased blood viscosity, increased fiber density of the fibrin clot, increased resistance of the fibrin clot to fibrinolysis, and altered mechanical properties of the fibrin clot (see figure). While clinical