Dementias are degenerative disorders that develop primarily in the nervous system and selectively damage particular areas of the brain. Some dementias, like Alzheimer’s disease affect all areas of the brain simultaneously, while others, such as frontotemporal dementia, affect the parts of the brain involved in controlling one’s communications and emotions. Still others are caused by vascular disease, brain trauma, or chronic alcohol abuse (Korsakoff’s syndrome)
By 2030, 20% of U.S. population will be older than 65 years of age – about 50 million people. Dementia affects 1% to 6% of those older than 65, and between 10% and 20% of those older than 80 years of age. In the next 30 years, estimated 10-20 million seniors in U.S. will have mild to severe forms of dementia.
Seniors with history of moderate traumatic brain injury (TBI) have a 2-3 times greater risk of developing Alzheimer’s disease – those with a severe TBI have a 4-5 times greater risk. Even healthy seniors are at risk for falls and head trauma, so any fall to the head, however minor, should be seen by a medical professional and documented.
Alzheimer’s disease accounts for 65% of all dementias. There is no direct diagnosis of Alzheimer’s – and while PET scans and other imaging techniques are being studied, none have yet been able to show the presence of Alzheimer’s disease.
Alzheimer’s onset often surprises families because vision, movement, and sensation remain untouched while a senior’s memories begin to slowly decrease. Recent memories are affected first, leading to “senior moments” that appear innocent because all other memories, including those from decades ago, remain intact. Eventually those remote memories begin to fade, and lastly the senior’s “crystallized” memories, such as family member’s names and faces, are compromised.
By David L. Raffle, PhD
Clinical and Forensic Neuropsychologist
www.RaffleBrainInstitute.com
Posts
A dementia diagnosis often raises concerns about whether the condition is hereditary. Many people worry about passing it on to their children, while others watching their parents struggle with the disease wonder, Will this happen to me one day? The good news is that, in most cases, dementia is not directly inherited. However, some forms of dementia have genetic components that may increase a person’s risk. Scientists are still working to fully understand these complex connections, but research has shown that while family history can be a factor, lifestyle and environmental influences often play an even greater role.
Lewy body dementia is a particular form of dementia, characterized by abnormal brain cells called Lewy bodies. The disease gets its unusual name from its discoverer, Dr. Levi of Germany, who uncovered the disease in 1912. “Levi” was changed to “Lewy” in the English translation. Lewy body dementia is one of the most common forms of dementia, occurring in 15% or more of all cases. However, the general public and even some health professionals are not as familiar with the disease as they are with better-known dementias like Alzheimer’s.
Researchers at this time don’t know why Lewy bodies form. They are made up of alpha-synuclein protein, which is also connected to Parkinson’s disease and other disorders. Indeed, Parkinson’s disease patients and Lewy Body dementia sufferers display similar symptoms, especially in later stages of the disease. Lewy bodies collect in the nuclei of the neurons that help manage motor control and memory. They can accumulate by themselves, but they also sometimes appear in the brains of those with Alzheimer’s. Because it is easily confused with similar diseases, Lewy Body dementia is under-diagnosed. However, seeking a diagnosis is critical, as it can lead to proper care that will make a real difference in quality of life and the length of time the patient is able to maintain their independence.
Unlike Alzheimer’s, in which the disease eventually kills most of the victim’s neurons, in Lewy Body dementia the patient only loses 10 to 15% of neurons, though other areas of the brain are damaged as well. Lewy Body dementia tends to affect different areas of the brain than Alzheimer’s does. The disease interferes with language, memory, and higher-level mental functions. Lewy body dementia also often occurs in connection with anxiety and depression.
As with other forms of dementia, there is no cure currently available. Doctors will prescribe various medications to treat the different symptoms, however. Drugs like rivastigmine and donepezil are used to treat cognitive problems, and may also help with motor control and psychiatric issues. Motor control can also be helped by levodopa. Drugs that treat hallucinations however usually are not used since there’s the possibility they could make motor control issues worse. The life expectancy for someone with the disease is about eight years.
Lewy body dementia is an area of active government-funded research, with the immediate goal of better understanding what causes the disease. Scientists hope to eventually discover ways to treat it, prevent it and cure it.
If you or a loved one has recently been diagnosed with Alzheimer’s disease, you probably have a lot of questions. This article is intended to address some of the most basic facts and get you started in the learning process.
Alzheimer’s disease, which is the most common form of dementia, is a problem with the brain and affects a patient’s behavior, thought processes, and memory. The symptoms are fairly minor to start, and then gradually get worse to the point where they drastically affect the individual’s everyday life and they need other people to help them complete even basic functions.
There are several million people in the US who have Alzheimer’s disease. It usually starts sometime after 65 years of age, and becomes more likely the older a person gets. Among those people older than 85, some estimate that half have Alzheimer’s.
One of the first signs of Alzheimer’s disease is problems with thinking skills, especially memory, and behavior alterations. The person may be moody, restless, or confused. They may display uncharacteristically poor judgment or have trouble processing visual information. They may also experience difficulties communicating and using language. Alzheimer’s can be difficult to diagnose because its symptoms can easily seem like the normal effects of aging. The disease is frequently ignored in the early stages.
How can you know the difference? When you see the doctor for a diagnosis, he or she will run a variety of tests designed to measure cognitive functioning and behavior. The only way anyone can know for sure that a person has Alzheimer’s, though, is to see if there is plaque in their brain tissue. This usually isn’t possible until after the patient has passed away and an autopsy is performed.
The disease may take anywhere from around 5 to 20 years to run its course. Because it damages the brain, it can cause a person to have trouble with basic physical functions such as swallowing, which can in turn lead to death. Alzheimer’s patients are also more likely to get an infection.
As of yet, no cure has been found for Alzheimer’s disease, but there are treatments available that can lessen some of the negative effects of the disease on patients and caregivers, as well as slow its progression.
To learn more about this disease, see the articles below:
How to Choose a Memory Care Facility
When Your Parent Forgets Who You Are
Three Big Questions to Consider After an Alzheimer’s DiagnosisRaya’s Paradise in conjunction with Care HomeCare is grateful to be a part of the Alzheimer’s Associations “Walk to End Alzheimer’s” this year. We are proud to be a Sponsor of this event in the nation’s largest event to raise awareness and funds for Alzheimer’s care, support and research. This inspiring event calls on participants of all ages and abilities to reclaim the future of millions. Together, we can end Alzheimer’s disease, the nation’s sixth-leading cause of death.
You can come join us in support of your family, friends and coworkers. The following is information on how to sign up and when and where the walk will take place.
The 2012 Alzheimer’s Walk will take place on Sunday November 4th, 2012 at Century Park located at 2000 Avenue of the Stars, Los Angeles, Ca. Registration & Check-In will begin at 7:00 a.m.; Opening Ceremonies are at 8:30 a.m. and at 9:00 a.m., the Walk Kicks Off !
For more information Contact: Kim Sims 213.300.5280 or Julie Hansen at 310.487.7112. All of our Raya’s Paradise and Care HomeCare participants will receive our Logo T-Shirt, Logo Cap and Water Bottle. Please join us for a fun and memorable day!!