[elementor-template id="225420"]

Information about deep vein thrombosis and pulmonary embolism (blood clots)

DEEP VEIN THROMBOSIS EXPLAINED

Back to top
Sometimes the clotting process – known as coagulation – is triggered inappropriately, and a clot forms inside a vein when it is not needed to prevent blood loss. Well known risk factors for such unwanted coagulation include surgery, cancer, immobility, obesity, smoking and pregnancy.
A deep vein thrombosis (DVT) is a blood clot that has formed in one of the veins that lie deep inside the muscles of the leg. Most of the time, the ability of blood to clot is rather useful; it forms a plug that saves us from bleeding to death from a minor wound.

 

Whatever the cause, a DVT can become large enough to act as a dam in the affected vein, trapping blood and leading to the classic symptoms of swelling of the leg and pain. But this is not the worst of it. Some or all of the clot can break away from where it was formed and travel out into the lungs via the heart, leading to a pulmonary embolism.

HOW A DEEP VEIN THROMBOSIS CAN CAUSE A PULMONARY EMBOLISM

Back to top
A pulmonary embolism (PE) is one of the most serious consequences of a deep vein thrombosis (DVT), although it is possible to have a pulmonary embolism without experiencing a prior DVT. When a PE occurs following a DVT it begins with either the whole clot, or more commonly part of the clot, breaking away from where it was formed in the leg vein and traveling onwards and upwards into the heart and then out into the lungs.

 

Most of this journey is through rather large blood vessels, but once in the lungs, where they capture oxygen, the blood vessels become smaller in size.
Eventually, the clot reaches a blood vessel too small to pass through and blocks the vessel. This effectively turns off the oxygen supply from part of the lung and is then called a pulmonary embolism.

A pulmonary embolism can be fatal so it is very important that you are alert to the symptoms, which can include shortness of breath, chest pain, coughing up blood, and a racing heart.
This is also why it is so important that a DVT is treated quickly and effectively, and thereafter you receive adequate protection against any occurrence of either a DVT or PE.
Treatment is especially important if you have already had a PE in order to prevent a recurrence. If you think that you are experiencing the symptoms of a PE you should contact your doctor immediately.

TREATING DEEP VEIN THROMBOSIS / PULMONARY EMBOLISM AND PREVENTING RECURRENCE

Back to top
The drugs used to treat blood clots are called anticoagulants – because they act on the coagulation (clotting) process. This is a complex series of steps that occurs in a specific sequence. Hence, by interrupting one or more of these steps it is possible to reduce the likelihood of a clot forming.

For many years the standard treatment of DVT and PE has been daily injections of one type of anticoagulant called a Heparin, together with tablets of a second anticoagulant called a vitamin K antagonist (Warfarin), for the initial treatment period. Thereafter, a single treatment with Warfarin. This standard treatment for DVT and PE is highly effective, but it does have a number of limitations. These include the need for injections, and the interaction of vitamin K antagonists with a number of common foods and with other medicines.

Frequent blood tests are needed throughout the whole treatment period to find the appropriate dosage – a process known as monitoring.

ALTERNATIVE ORAL MEDICATION

Back to top

New oral medications are now available for the treatment of deep vein thrombosis (DVT) and pulmonary embolism (PE) and the prevention of recurrent DVT and PE that does not require frequent testing and dosage changes, and no significant food interactions.




[helpful]

For more health information

Click on the body area you want to know more about. Select a related health topic from the menu

Select a body area
Head
Chest
Abdomen
Pelvis
Legs
Feet
Mental Health
Skin
General
Infant Health
Restlessness and Teething in Babies
Restlessness and Teething in Babies
Although deemed as ‘normal’, teething may be accompanied by a fever, irritability, diarrhoea and poor sleep; amongst other ....
Flu
Flu
There has been a steady increase in the number of flu cases reported recently. This is unusual because the flu season usually runs from March to ....
Diarrhoea
Diarrhoea
When is a runny tummy actually diarrhoea, and when to use an ....
Sinus
Sinus
Sinuses are spaces in the bones of your cheeks, your forehead and your ....
Measles, Mumps and Rubella – MMR
Measles, Mumps and Rubella – MMR
Measles, Mumps and Rubella can be highly infectious diseases1 and can spread through droplets of saliva, inhaled or picked up from surfaces and ....