NEW RESEARCH SHOWS MEN WITH ANEMIA HAVE INCREASED RISK OF DEATH WITHIN FIRST YEAR FOLLOWING STROKE
This blog was originally written during my 2 1/2 year tenure as a blogger for Health Goes Strong. The site was deactivated in July 2013, but you can read the original post here.
Anemia is the most common blood condition in the world. It develops when you don’t have enough healthy red blood cells to transport oxygen to your cells. Iron-deficiency anemia is the most common type, but there are many others, each with its own cause and treatment. New research now suggests that anemia may increase your risk of death following a stroke.
The study was presented at the American Stroke Association meeting in February. Researchers from the Yale University School of Medicine reviewed the medical records of 3,750 men who had suffered an ischemic stroke and were treated in one of 131 Veterans Administration Hospitals in 2007.
When they compared survival rates of those with anemia to non-anemic patients they found severe anemia increased the risk of dying 3.5 times while the patient was still in the hospital and 2.5 times within the first year following the stroke. Those with moderate anemia had twice the risk of dying within six months to a year after their stroke and for those with mild anemia the risk was 1.5 times higher than those without anemia.
During an ischemic stroke a blood vessel to the brain is blocked or a blood clot occurs within the brain. The researchers believe anemia restricts the body’s natural response to raise the blood pressure after a stroke in order to force more blood to the brain. Anemia also decreases the amount of oxygen reaching the brain after a stroke when it is most needed.
The report concluded that stroke survivors with anemia have an increased risk of dying within the first year and should be closely monitored.
The researchers stated further studies are needed to see if the results are the same for women and blacks, who were not included in their population. They also said they would like to determine what type of anemia patients who suffer strokes have and whether a blood transfusion might prevent them from dying.
Are you ready to be tested to see if you have anemia?