Deep vein thrombosis is a condition in which a blood clot forms in one or more of the deep veins usually in the legs. A potentially life threatening complication may occur if this clot detaches and travels to the lungs leading to pulmonary embolism.
DVT (Deep vein thrombosis) results from conditions that impair venous return, lead to endothelial injury or dysfunction, or cause hypercoagulability. The conditions leading to DVT and the risk factors include:
- Occult cancer.
- Immobilized patients.
- Adults over the age of 60 years
- Recent history of a major surgery or trauma
- Prolonged sitting like long travels
- Family history of blood clots.
- Pregnancy or delivery in last 6 months
- Fracture of the pelvis or legs.
- Taking oral contraceptives or hormonal replacement therapy.
- Certain autoimmune disorders
- Cigarette smoking.
Clinical Signs And Symptoms:
The clinical features of deep vein thrombosis include:
- Swelling in the affected leg. ( Rarely both legs are involved)
- Changes in skin color
- Pain in the leg
- Warmth and tenderness over the affected part
- Positive Homan’s sign ( Calf discomfort elicited by ankle dorsiflexion with the knee extended)
The two main tests done to diagnose DVT along with the are :
- D-dimer blood test.
- Doppler ultrasound exam of the legs.