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Transplants and Dementia
Seventeen percent of people over 75 who receive kidney transplants develop dementia within 10 years, often because the immune-suppressing drugs that are used to prevent the body from rejecting the transplanted kidney can damage the brain (J Am Soc of Nephrology, December 15, 2016). Those who develop dementia have a 43 percent chance of rejecting their kidneys within 10 years and almost a 90 percent chance of dying within 10 years. The average survival time for people diagnosed with dementia is about four and a half years. After kidney transplantation, the most common causes of death are heart disease (36 percent), infection (24 percent) and brain death (12 percent), with smaller numbers from brain aneurism, brain hemorrhage or ischemic stroke (J Am Soc of Neph, June 1, 1995;5(12):2048-2056).