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Memory loss in patients with temporally graded RA strongly follows Ribot's law, meaning that one will experience more memory loss for events closer to the injury or disease onset. [4] This type of RA is commonly triggered in individuals with Korsakoff syndrome due to a combination of long-term alcohol use and Wernicke encephalopathy . [ 7 ]
It is one of the most common causes of disability among the elderly but can develop before the age of 65 when it is known as early-onset dementia or presenile dementia. [ 269 ] [ 270 ] Less than 1% of those with Alzheimer's have gene mutations that cause a much earlier development of the disease, around the age of 45, known as early-onset ...
Postoperative cognitive dysfunction ( POCD) is a decline in cognitive function (especially in memory and executive functions) that may last from 1–12 months after surgery, or longer. [ 1] In some cases, this disorder may persist for several years after major surgery. [ 2] POCD is distinct from emergence delirium.
Steroid dementia syndrome. Steroid dementia syndrome describes the signs and symptoms of hippocampal and prefrontal cortical dysfunction, such as deficits in memory, attention, and executive function, induced by glucocorticoids. [ 1] Dementia-like symptoms have been found in some individuals who have been exposed to glucocorticoid medication ...
Now, scientists from the Mayo Clinic have identified another memory-loss condition found in older adults that is frequently misdiagnosed as Alzheimer’s disease. Researchers have developed new ...
It is estimated that the older the individual, the more likely they would require assistance post TBI. [9] In some cases, individuals have reported having a particularly vivid memory for images or sounds occurring immediately before the injury, on regaining consciousness, or during a lucid interval between the injury and the onset of PTA.
Semantic dementia. In neurology, semantic dementia ( SD ), also known as semantic variant primary progressive aphasia ( svPPA ), is a progressive neurodegenerative disorder characterized by loss of semantic memory in both the verbal and non-verbal domains. However, the most common presenting symptoms are in the verbal domain (with loss of word ...
As a result, older adult patients are often misdiagnosed due to insufficient testing. Cognitive symptoms such as memory loss, slowed movement, or reduced/ slowed speech, are sometimes initially misdiagnosed as dementia, however, further investigation determined that these patients were suffering from a major depressive episode. [31]