Normal Aging or Something More?

It can be difficult to separate the normal aging process from the progressive and steep declines typical of Dementia. Examples of genuinely age-related changes are thinning and graying hair, sagging skin, and alterations in vision, hearing, and taste. Other changes, such as heart disease and certain types of memory loss, are not a normal part of aging.

The normal aging process may affect memory by changing the way the brain stores and retrieves information. While healthy aging does not affect long-term memory, it may affect short-term memory by making it difficult to remember such things as the name of a new acquaintance or misplacing keys or eyeglasses. Occasional word-recall difficulties, rather than frequent ones, are another indicator of healthy aging.

How people evaluate isolated events as one way to distinguish normal memory lapses from those caused by dementia. At one time or another, everybody loses a car in a parking lot. We chalk up those moments of frustration to the number of look-alike cars or having our thoughts elsewhere with normal forgetfulness. A person who has Dementia is sure someone has moved the car.           

Name recall and word-finding are other ways to distinguish memory losses caused by the normal aging process from those resulting from Dementia. A person with occasional age-related memory difficulties might ask for a reminder or wait a moment for the right word to show up. A person with Dementia frequently has trouble finding and using the right word. To compensate, he or she may use either an awkward substitution or a description in place of the word. For example - a furry animal that purrs to replace the word “cat.” Further, there may be a noticeable decline in his or her capability to maintain a conversation.
Clinicians use the term “impoverished “to describe the Dementia-related changes in language complexity and vocabulary.

The ability to use household items is another indicator of Dementia. Most people find it annoying or frustrating when upgrading a home appliance to one that is heavy in technology or with new features. The source of annoyance often stems from changes in vision or the reduction in dexterity that arthritis may cause. However, people who have Dementia no longer know how to use their familiar dishwasher or drier.

When considering whether a set of symptoms indicates Dementia or normal aging, one must evaluate whether the symptoms are a nuisance, problematic, or debilitating. This is best accomplished with the help of appropriate medical professionals and input from caregivers and loved ones.

Contributor: Janet Yagoda Shagam, PhD, is a freelance medical and science writer for the Dementia Society and the author of “An Unintended Journey: A Caregiver's Guide to Dementia.”

The opinions expressed by contributing authors are not necessarily the opinions of the Dementia Society, Inc. We do not endorse nor guarantee products, comments, suggestions, links, or other forms of the content contained within blog posts that have been provided to us with permission, or otherwise. Dementia Society does not provide medical advice. Please consult your doctor.

www.DementiaSociety.org

Medications: Help, Hurt, or Both?

In the United States, more than seven million people have mild cognitive impairment (MCI) or have dementia. According to Xueya Cai and colleagues, nearly half of these individuals have two additional chronic diseases that require they take five or more medications.1

As a consequence of age-related decreases in kidney and liver function, older people tend to excrete medications at a slower rate and are therefore more likely to experience stronger, and not always reversible, drug-induced side effects. Another factor is the potential for complicated interactions with the other prescribed and over-the-counter medications that older people may take. Research indicates that as people age, they become more sensitive to drugs that act on the central nervous system.2 

One group of medications, the anticholinergics, have recently come under increased scrutiny. This class of drugs slows or prevents the transmission of nervous system information to and from the brain. Some commonly used over-the-counter (OTC) medications, such as antihistamines for cold and allergy symptoms are anticholinergics. Prescription anticholinergic medications relieve symptoms associated with depression, muscle spasms, motion sickness, as well as those used to modify the behaviors associated with mental illnesses such as schizophrenia and bipolar disorder.

It is important to understand that memory loss and confusion along with dizziness or drowsiness may be symptoms of medication side effects, rather than dementia.  Therefore, the clinician must receive from the patient or his or her family a list of ALL prescribed and over-the-counter medications, as well as any dietary supplements and herbals, he or she may take.

 Anticholinergics can also interfere with the effectiveness of medications used to slow memory loss or long-term use, putting people at higher risk for MCI and dementia later in life.1,3 One example are the drugs used to treat overactive bladder: the “gotta go gotta go” kind of urinary incontinence. Medications such as Detrol® and Cymbalta® slow transmission of nervous system information to and from the brain and thereby quiet the unrelenting sensation of “gotta go."

The medications used to slow the memory loss associated with dementia do just the opposite. Drugs such as Aricept® and Namenda® increase communication between nerve cells in the brain. Taking both types of medications at the same time can worsen dementia.

A Wake Forest University of Medicine study shows that nursing home patients receiving individual medications to modify dementia symptoms and improve continence lost the ability to perform basic living skills, such as dressing and feeding themselves, 50 percent faster than those receiving dementia medications alone.4 

One must evaluate the overall risks and benefits of taking a medication known to affect the risk for dementia later-in-life or, in the short-run, worsen the disease. Be sure to discuss with your doctor any concerns about taking a medication that may increase dementia risk. Do not stop taking prescribed or recommended over-the-counter medicines without first consulting with your doctor.

Notes: 

1. Cai Z, N Campbell et al, “Long-term Anticholinergic use and the Aging Brain”, http://www.ncbi.nlm.nih.gov/pubmed/23183138, (accessed April, 25, 2016)

2. Drug-Induced Cognitive Impairment: Delirium and Dementia, http://www.worstpills.org/includes/page.cfm?op_id=459 (accessed, April 25, 2016)

3. Higher dementia risk linked to use of common drugs, GroupHealth Research Institute, https://www.sciencedaily.com/releases/2015/01/150126124721.htm (accessed April 25, 2015). 

4. Dual Treatment to Treat AD Symptoms and Behaviors, https://www.sciencedaily.com/releases/2008/04/080430134230.htm (accessed, April 25, 2016)

For Further Reading

Medications to Avoid in the Elderly, http://www.virginiageriatrics.org/consult/medications/medsList.html (accessed April 24, 2016) 

Contributor: Janet Yagoda Shagam, PhD, is a freelance medical and science writer and the author of “An Unintended Journey: A Caregiver's Guide to Dementia.” Available through Amazon.

The opinions expressed by contributing authors are not necessarily the opinions of the Dementia Society, Inc. We do not endorse nor guarantee products, comments, suggestions, links, or other forms of content contained within blog posts that have been provided to us with permission, or otherwise. Dementia Society does not provide medical advice. Please consult your doctor. www.DementiaSociety.org

How to Distinguish Dementia with Lewy Bodies From Other Types

 

Lewy Body Dementia (named after Frederich Heinrich Lewy, who in 1912 described the disease) is a spectrum disorder described by a rapid decline in the patient’s cognition and behavior. Hallucinations and delusions, as well as alterations in sleep, heart rate, and digestion are other Dementia with Lewy body characteristics. Certain subtypes of Dementia with Lewy Bodies cause people to experience shaking, rigidity, and balance difficulties.

The presence of Lewy bodies – abnormal brain deposits composed of several proteins located throughout the brain, is the post-mortem diagnostic hallmark. Dementia with Lewy bodies is a rapidly progressing disease. Death usually occurs within five to seven years of diagnosis.

Unlike Alzheimer's Disease, Dementia with Lewy bodies does not have predictable stages. Early symptoms of the disease vary. Some people first experience cognitive and memory changes similar to those associated with early Alzheimer's Disease. For other people, first symptoms may include shaking and a shuffling gait. Sometimes hallucinations are a first symptom. Therefore, a thorough medical exam plays an important role in ruling out other causes such as Parkinson's Disease or the side effects of medications used to treat other illnesses and conditions.

Responses to the medications used to treat or reduce the severity of hallucinations can inadvertently confirm a diagnosis of Dementia with Lewy bodies. Unlike people who have Alzheimer's Disease, people who have symptoms commonly associated with Dementia with Lewy bodies can have dangerous, and sometimes fatal reactions to antipsychotic medications such as haloperidol (Haldol) and risperidone (Risperdal). (See References 1 and 2 below.) This finding points to the importance of keeping detailed medical history notes and prescription records. This is especially true for first-time appointments and in the emergency room.

Lewy bodies are also found in other brain disorders such as Parkinson's Disease. Many people who have Parkinson's Disease eventually develop the thinking and reasoning difficulties associated with Dementia with Lewy bodies. Conversely, many people who have Dementia with Lewy bodies experience the shaking and shuffling gait associated with Parkinson's Disease. The overlap in symptoms and other evidence suggest that Dementia with Lewy bodies, Parkinson's Disease and Parkinson's Disease Dementia may share underlying abnormalities.

#lewybodydementia #unpredictable #earlysymptomsvary

Janet Yagoda Shagam, PhD, is a freelance medical and science writer and the author of “An Unintended Journey: A Caregiver's Guide to Dementia.” Available through Amazon.

The opinions expressed by contributing authors are not necessarily the opinions of the Dementia Society, Inc. We do not endorse nor guarantee products, comments, suggestions, links, or other forms of content contained within blog posts - that have been provided to us with permission, or otherwise. Dementia Society does not provide medical advice. Please consult your doctor.

Source 1, accessed March 6th, 2016
Source 2, accessed March 15th, 2016