The new guidelines appear online April 19, 2011 in Alzheimer's & Dementia: The Journal of the Alzheimer's Association. They were developed by expert panels convened last year by the National Institute on Aging (NIA), part of the NIH, and the Alzheimer's Association. Preliminary recommendations were announced at the Association's International Conference on Alzheimer's Disease in July 2010, followed by a comment period.
Guy M. McKhann, M.D., Johns Hopkins University School of Medicine, Baltimore, and David S. Knopman, M.D., Mayo Clinic, Rochester, Minn., co-chaired the panel that revised the 1984 clinical Alzheimer's dementia criteria. Marilyn Albert, Ph.D., Johns Hopkins University School of Medicine, headed the panel refining the MCI criteria. Reisa A. Sperling, M.D, Brigham and Women's Hospital, Harvard Medical School, Boston, led the panel tasked with defining the preclinical stage. The journal also includes a paper by Clifford Jack, M.D., Mayo Clinic, Rochester, Minn., as senior author, on the need for and concept behind the new guidelines.
The original 1984 clinical criteria for Alzheimer's disease, reflecting the limited knowledge of the day, defined Alzheimer's as having a single stage, dementia, and based diagnosis solely on clinical symptoms. It assumed that people free of dementia symptoms were disease-free. Diagnosis was confirmed only at autopsy, when the hallmarks of the disease, abnormal amounts of amyloid proteins forming plaques and tau proteins forming tangles, were found in the brain.
Since then, research has determined that Alzheimer's may ca
|Contact: Peggy Vaughn|
NIH/National Institute on Aging