Early Dementia Signs Often Noticed by Family Before Patient
Occasional forgetfulness, such as misplacing keys or forgetting why one entered a room, is common and not necessarily indicative of dementia. True warning signs of dementia, a group of conditions impairing cognitive functions to a degree that interferes with daily life, manifest differently. These include entire events being erased from memory, difficulty performing familiar tasks, significant behavioral changes, or an inability to recognize the decline.
Dementia is not a single disease but an umbrella term for conditions like Alzheimer's, vascular dementia, frontotemporal dementia, and dementia with Lewy bodies, each with potentially distinct onsets. Dr. Inbal Maayan, a geriatrician, emphasizes that while short-term memory loss is a key symptom, the distinction lies in frequency and impact. Unlike forgetting a name temporarily, dementia involves complete memory gaps of events, repeated questions, disorientation in familiar places, or inability to perform routine actions.
Crucially, dementia is not an inevitable part of aging. Early diagnosis is vital for identifying causes, tailoring treatment, and planning future life. Sometimes, the first noticeable sign isn't memory-related but a change in personality or behavior. A calm person might become aggressive or irritable, or a dominant individual may become apathetic. Dr. Maayan advises seeking evaluation for any behavioral change in older adults, especially over age 70, to rule out cognitive decline even if it seems psychiatric.
Family members are often the first to observe these changes, as individuals with dementia may lose the ability to recognize their own cognitive impairment. In dementia with Lewy bodies, memory might be relatively preserved initially, with early deficits appearing in concentration, attention, thought processing speed, and task planning. Significant fluctuations in alertness, with periods of clarity followed by confusion or drowsiness, are characteristic. Some patients experience vivid visual hallucinations or REM sleep behavior disorder, where they act out dreams. Parkinsonian symptoms like slowed movement and rigidity can also occur.
If persistent changes in memory, behavior, or function arise, consulting a family doctor is the first step. Investigations may include medication reviews, blood tests, cognitive assessments, and screening for other conditions like depression or thyroid issues. Further specialized geriatric, neurological, or psychogeriatric evaluation may follow. Dr. Maayan concludes that early, accurate diagnosis allows for appropriate treatment, symptom management, and preservation of quality of life for both the patient and their family. The key message is not to panic over every instance of forgetfulness, but also not to dismiss consistent changes as simply a part of aging.
