Lewy Body Dementia Impacts the Entire Autonomic Nervous System
There are many types of dementia. One type of dementia that families call us about is Lewy body dementia (LBD) which impacts the entire autonomic nervous system (ANS). The Lewy Body Dementia Resource Center provides a quick overview of what the autonomic nervous system (ANS) controls and how different the symptoms can be between people with Lewy body dementia (LBD).
As in Parkinson’s Disease, Lewy Body Dementia affects the entire Autonomic Nervous System (ANS). And yet, people often only focus on the word “dementia” and are blindsided by all other possible symptoms that can be caused by a disruption of the ANS. It is useful for caregivers to learn what that actually means; an explanation that is too often missing during a neurological consultation.
A quick overview of what the ANS controls sheds some light on how pervasive the LBD symptoms can be and why no two people with this illness are alike. The ANS controls all the things our bodies do largely unconsciously. This includes respiration, heart rate, blood pressure, digestion, body temperature, urination and defecation, monitoring blood sugar, oxygen levels, salivation and sweat glands, to name just a few. It is much more complex than this list can convey, but even knowing this can help caregivers regulate their own stress levels. Otherwise, I have seen caregivers, and experienced myself, feeling overwhelmed or panicky over the sudden appearance of a seemingly new symptom.
Knowing that symptoms come and go is important. Knowing that the sudden onset of a “new” symptom (such as constipation, or low blood pressure or bouts of feeling very hot or cold) is an effect of a disrupted ANS can allow the caregiver time and space to take a deep breath, to step back and to not panic. This then can lead her to calm explanations when talking to the person with Lewy. When, after a short walk around the block, my husband asks anxiously, “why am I SO hot?” Before I understood the ANS, I might have felt frightened or worried that he was getting a fever. Now, while I still check for fever, I calmly say, “it’s Lewy, honey. Nothing to worry about. You’ll feel better soon.” And he does.
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