What is Deep Vein Thrombosis?
Deep vein thrombosis (or DVT) is a solidifying of blood inside blood vessels caused by relatively reduced blood flow during prolonged periods of immobility. The condition can occur during long trips by air, road and rail.
FAQs
Am I at particular risk for developing a DVT?
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There are many risk factors for DVT, including but not limited to a previous thrombus, age over 65 years old, pregnancy, obesity, oral contraceptive use, recent surgery, malignancy and disorders of blood clotting. Travel-related DVTs tend to occur after trips of more than four hours.
What is the biggest problem with a DVT?
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In addition to symptoms in the affected limb, DVT can also result in solidified blood, known as the thrombus, breaking off and travelling through the circulation to lodge in the lungs. This is known as a pulmonary embolus and can be life-threatening. Symptoms include chest pain, difficulty breathing and coughing up blood.
What to Know
Deep vein thrombosis symptoms
DVT should be suspected when painful swelling develops in the leg, often below the knee. The affected limb can also have a slight red discolouration and be warm to touch. While DVT can occur in any deep vein, arms are more rarely affected.
Deep vein thrombosis diagnosis and treatment
DVT is most commonly diagnosed by ultrasound examination and treatment involves taking tablets to thin the blood.
Deep vein thrombosis prevention
Preventive measures include remaining mobile during long travel by periodically walking around and staying well hydrated by drinking plenty of water and avoiding too much alcohol, tea or coffee. For those with risk factors, below-knee compression stockings can be worn during the trip.