Low Iron Levels In Blood Give Clue To Blood Clot Risk
Posted Dec 15 2011 6:49pm
People with low levels of iron in the blood have a higher risk of dangerous blood clots, according to research published in the journal Thorax today. A study of clotting risk factors in patients with an inherited blood vessel disease suggests that treating iron deficiency might be important for preventing potentially lethal blood clots.
Each year, one in every 1,000 people in the UK is affected by deep vein thrombosis – blood clots that form in the veins. These can cause pain and swelling, but can also be fatal if the clot is dislodged and travels into the blood vessels of the lungs. Although some risk factors for blood clots are recognised, such as major surgery, immobility and cancer, often there is no clear reason for the blood clot.
To look for new risk factors for blood clots, scientists at Imperial College London studied patients with hereditary haemorrhagic telangiectasia (HHT). HHT is an inherited disease of the blood vessels, the main symptoms of which are excessive bleeding from the nose and gut. Previous research by the same group had found that HHT patients have a higher risk of blood clots, but the reason for this was unclear.