Blood Clot, Blood Clot in Leg Symptom, Blood Clot Symptom

Blood Clot

A thrombus is a blood clot formed when there is an imbalance in the blood coagulation system. A thrombus can block the flow of blood through a vein or artery, and can detach from the vessel wall to become a life-threatening embolus when it lodges in the lungs or other vital organs.6, 7 Blood clots in coronary arteries cause acute coronary syndrome, and blood clots that form in the heart are the major cause of stroke in people with atrial fibrillation.4, 5
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Blood Clot in Leg Symptom

The pathological formation of a blood clot, or thrombosis, poses significant health risks, including venous thromboembolic disease (VTE).5, 8, 18
The most common type of VTE is deep vein thrombosis (DVT), occurring in veins deep within the muscles of the leg and pelvis.20
Physical signs and symptoms of DVT have a low predictive value in diagnosis. For that reason, objective imaging tests are required for diagnosis.42
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Blood Clot Symptom

The pathological formation of a blood clot, or thrombosis, poses significant health risks, including venous thromboembolic disease (VTE).5, 8, 18
Waiting for the signs and symptoms of VTE to appear before instituting anticoagulant treatment increases the risk of serious thromboembolic events.3 These events may be acutely life-threatening, such as pulmonary embolism (PE), or may lead to long-term sequelae, including post-thrombotic syndrome and pulmonary hypertension.
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See also: Symptom of Thrombosis
See also: Knee Replacement Surgery
  • 6 - Colman RW, Clowes AW, George JN, Goldhaber SZ, Marder VJ. Overview of hemostasis. In: Colman RW, Clowes AW, George JN, Goldhaber SZ, Marder VJ, eds. Hemostasis and Thrombosis: Basic Principles and Clinical Practice. 5th ed. Philadelphia, PA: Lippincott, Williams & Wilkins; 2006:1-16.
  • 7 - Tran H, Ginsberg J. Anticoagulant therapy for major arterial and venous thromboembolism. In: Colman RW, Clowes AW, George JN, Goldhaber SZ, Marder VJ, eds. Hemostasis and Thrombosis: Basic Principles and Clinical Practice. 5th ed. Philadelphia, PA: Lippincott, Williams & Wilkins; 2006:1673-1688.
  • 4 - Lip GY, Tse HF. Management of atrial fibrillation. Lancet. 2007;370(9587):604-618.
  • 5 - Fuster V, Moreno PR, Fayad ZA, Corti R, Badimon JJ. Atherothrombosis and high-risk plaque: part I: evolving concepts. J Am Coll Cardiol. 2005;46(6):937-954.
  • 8 - Tapson VF. Acute pulmonary embolism. N Engl J Med. 2008;358(10):1037-1052.
  • 18 - Waldo AL. Anticoagulation: stroke prevention in patients with atrial fibrillation. Med Clin North Am. 2008;92(1):143-159, xi.
  • 20 - Bates SM, Ginsberg JS. Clinical practice. Treatment of deep-vein thrombosis. N Engl J Med. 2004;351(3):268-277.
  • 42 - Ramzi DW, Leeper KV. DVT and pulmonary embolism: Part I. Diagnosis. Am Fam Physician. 2004;69(12):2829-2836.
  • 3 - Geerts WH, Pineo GF, Heit JA, et al. Prevention of venous thromboembolism: the Seventh ACCP Conference on Antithrombotic and Thrombolytic Therapy. Chest. 2004;126(3 suppl):338S-400S.