Most frequent pathologies behind corticobasal syndrome

Too bad this full article is in Japanese as it might be a very good review of corticobasal syndrome.

Most impressive to me about the abstract is the long list of disorders that can look like corticobasal syndrome — CBD, AD, PSP, FTLD with TDP-43, Pick’s disease, Lewy body disease, CJD, etc.

Clearly, the only way to be sure of the diagnosis is for the brain to be examined upon death.  If you haven’t made arrangements for that but would like to, please let me know, as we can help with this.  Half of our local group members are involved with brain donation!

Robin

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Brain & Nerve. 2012 Apr;64(4):462-73.

[Corticobasal syndrome: recent advances and future directions].
[Article in Japanese]

Aiba I.
Department of Neurology, National Hospital Organization Higashinagoya National Hospital.

Abstract
Corticobasal degeneration (CBD) is a progressive neurodegenerative disorder described by Rebeiz et al. It is characterized by progressive, asymmetric, cortical (eg, apraxia, alien limb phenomena, cortical sensory loss, and myoclonus), and extrapyramidal (eg, rigidity, bradykinesia, dystonia, and tremor) dysfunction.

However, CBD has many clinical phenotypes, and the features used for predicting CBD have low sensitivity.

Therefore, the term corticobasal syndrome (CBS) has been used to characterize such clinical features, whereas the term CBD is used to refer to the pathological disorder.

The most frequent causes of CBS are CBD, followed by Alzheimer’s disease, progressive supranuclear palsy, frontotemporal lobar degeneration with TDP-43 pathology (sporadic and familial), Pick’s disease, Lewy body disease, frontotemporal lobar degeneration with fused in sarcoma-positive inclusions, Creutzfeldt-Jakob disease, and mutations in the microtubule-associated protein tau (MAPT) and progranulin (GRN) genes.

The topography of neurodegeneration dictates the clinical syndrome not according to the underlying pathology.

Researchers have attempted to develop fluid biomarkers or imaging analysis for diagnosing CBS. The aim of this review was to highlight recent advances in CBS diagnosis and discuss future directions.

PubMed ID#:  22481519  (see pubmed.gov for this English-language abstract only)

American Pain Society’s Centers of Excellence

Occasionally, group members have loved ones experiencing extreme pain.  Generally, I
recommend families consult the American Pain Society website (americanpainsociety.org) to learn if there are any clinical centers of excellence in pain management nearby.

In Northern California, recent awardees of the status “clinical centers of excellence in pain management” include:

* Stanford University, Division of Pain Medicine (2012)
* UCSF Pain Management Center and UCSF PainCARE, San Francisco (2007)
* UCD, Center for Pain Medicine, Sacramento (2010)

See the past recipients of the award here:

americanpainsociety.org/get-involved/awards-grants/ccoe-past-recipients

Autopsy-confirmed PSP case – symptoms for 24 years!

This is a case of a Japanese woman who presented with gait problems, rigidity, and resting tremor at age 55.

She was diagnosed with Parkinson’s Disease (as those are classic PD symptoms). Levodopa (Sinemet) didn’t help and symptoms were on both sides of her body.  (In PD, levodopa helps and symptoms are unilateral.) Seventeen years into symptoms, she began experiencing frequent falls.

Later, when the patient developed vertical gaze palsy, a masked face, bradykinesia (slow movements), and axial rigidity, the diagnosis was changed to PSP. She also had retrocollis (head and neck extended backwards), grasp reflex, and bilateral Babinski signs. The resting tremor
disappeared.

Twenty-two years after symptom onset, she got a feeding tube. After that, she was still able to walk with assistance.

She died at the age of 79 — 24 years after symptom onset. Upon brain autopsy, the PSP diagnosis was confirmed. Given the mild tau pathology seen in the brain and the very slow progression, the authors argue that this is a distinct subtype of PSP.

The abstract is below.

Robin

Rinsho Shinkeigaku. 2012;52(3):156-60.

An autopsied case of progressive supranuclear palsy presenting with
slow progression and unusually prolonged disease duration.

Iwasaki Y, Mori K, Ito M, Mimuro M, Yoshida M.
Department of Neurology, Oyamada Memorial Spa Hospital.

Abstract
A 55-year-old Japanese female with no family history of neurological
disease showed gait disturbance with rigidity and resting tremor. She
was initially diagnosed with Parkinson’s disease, but neither
laterality of symptoms nor levodopa benefit were observed.

The parkinsonism and gait freezing progressed unusually slowly and she
experienced frequent falls 17 years after the onset of symptoms.

When neurologic examination revealed vertical gaze palsy, masked face,
bradykinesia and dominant axial rigidity, the diagnosis was modified
to progressive supranuclear palsy (PSP). Retrocollis, grasp reflex,
and bilateral Babinski’s sign developed, but resting tremor
disappeared.

Gastrostomy was performed 22 years after onset, after which she was
still capable of walking with assistance. Tracheotomy was not
performed.

The patient died of an acute subarachnoid hemorrhage 24 years after
onset at the age of 79. On autopsy, the brain weighed 1,050g and
showed frontal lobe atrophy. Coronal cerebral slices showed atrophy of
the globus pallidus and subthalamic nucleus. Tegmental atrophy of the
brainstem and depigmentation of the substantia nigra were observed.
Neuropathologic examination showed severe neuron loss with gliosis in
the globus pallidus, subthalamic nucleus, substantia nigra, and
tegmentum of the brainstem. The Purkinje neuron layer and cerebellar
dentate nucleus showed mild neuron loss. Globose-type neurofibrillary
tangles were widespread, particularly in the globus pallidus,
subthalamic nucleus, substantia nigra, nucleus of oculomotor nerve,
locus ceruleus, and cerebellar dentate nucleus. Glial fibrillary
tangles (coiled body and tuft-shaped astrocyte) and argyrophilic
threads were also widespread, particularly in the frontal lobe and
basal ganglia. Lewy bodies were not observed.

Although, the pathologic findings were consistent with PSP,
Gallyas-positive and tau-positive structures were generally small in
number. According to the clinicopathological findings, we speculate
that this case showed a distinct subtype of PSP with a slowly
progressive clinical course and generally mild tau deposition.

PubMed ID#: 22453039 (see pubmed.gov for this abstract number)

“The 36-Hour Day” – Highlights for All Caregivers

Laura, a member of the local Lewy Body Dementia caregiver group, donated the book “The 36-Hour Day” to our group recently. The book’s long subtitle is “A Family Guide to Caring for People with Alzheimer Disease, Other Dementias, and Memory Loss in Later Life.” The authors are Nancy Mace and Peter Rabins, MD, from Johns Hopkins. I’m assuming that the title “The 36-Hour Day” comes from the idea that when you are caring for someone with dementia, a 24-hour day seems like a 36-hour day. For 30 years, this “legendary” book has been highly recommended for family members caring for someone with dementia. The authors address family caregivers directly.

I was away in Arizona for a long weekend, and had time to read the book. I was particularly interested in two things. First, is the book applicable to families where the loved one doesn’t have dementia? I tried to read the book from the point of view of a caregiver to someone with either Parkinson’s Disease or Multiple System Atrophy. Large sections of the book ARE applicable to non-dementia situations as well.

Second, if you aren’t dealing with Alzheimer’s Disease but are dealing with Parkinson’s Disease Dementia, Dementia with Lewy Bodies, the Richardson’s syndrome form of Progressive Supranuclear Palsy, or Corticobasal Degeneration with dementia, would you feel that the book wasn’t addressed to you? The authors succeed in writing a book NOT limited to Alzheimer’s caregivers. Usually the term “dementia” is used. And the symptoms of dementia are addressed — memory loss, jealousy, clinging to the caregiver, hallucinations, anxiety, etc — while the diagnoses themselves are largely unimportant in the book. So, this book has a lot to offer anyone, not just Alzheimer’s caregivers.

If you purchase this book, I recommend skimming it to see what’s there. And then reading relevant sections when a problem arises. The book offers one or two suggestions for things the caregiver can say in any situation. If those suggestions wouldn’t work for you, then asking local support group members what they would do in the situation may be the best approach.

Here are five highlights from the book that apply to all caregivers (not just those dealing with dementia).

Robin

—————————–

#1 General suggestions for caregiving

* Be informed.
* Share your concerns with the person [you are caring for].
* Try to solve your most frustrating problems one at a time.
* Get enough rest.
* Use your common sense and imagination.
* Maintain a sense of humor.
* Try to establish an environment that allow as much freedom as possible but also offers the structured that…people need.
* Remember to talk to the [person you are caring for]. Make a point of telling him what you are doing and why.
* Have an ID necklace or bracelet made for the confused person.
* Keep the impaired person active but not upset.

#2 Every primary caregiver should plan NOW for what will happen to their family member if the caregiver has an emergency and 911 needs to be called for the caregiver. Who will care for your family member when you are in the ER or for when you are in the hospital? How will this back-up person be notified? Does the back-up person have a key to your house?

The authors suggest that if your family member has dementia, the primary caregiver should also wear a personal security alarm so that the caregiver can push a button to have 911 called. And they suggest that the primary caregiver NOW write a “cope notebook” of things the back-up caregiver needs to know about handling the person with dementia.

#3 Every primary caregiver should plan NOW for what will happen to their family member if the caregiver dies first. For the sake of the impaired person, primary caregivers need to have a plan that family members can put into place if the caregiver dies. See a laywer, funeral home, financial planner, etc. to develop this plan. Have a family meeting to discuss this plan. Make a summary of your assets for the person who will take over as primary caregiver. This should include info on the location of key documents.

#4 Every primary caregiver should discuss NOW the future care needed by a family member with a neurodegenerative disorder and how this may affect the caregiver. Develop a plan and discuss this with as many family members as possible. You should consider:

* What kind of care may the person need in the future?
* At what point will the primary caregiver’s physical and emotional resources for caregiving be exhausted?
* Do you have a spouse, children, or a job that also demands your time and energies? What effect will this added burden have on your marriage, on growing children, or on your career?
* Where can you turn for help?
* How much help with the rest of the family give you?
* What financial resources are available for this person’s care?
* What will be left for you to live on after you have met the expenses of care?

#5 Every primary caregiver should anticipate the possible need for nursing home or other residential care. Investigate financial issues and locate one or more homes you like.

If you have read this book before, please let me know how you’ve found it helpful. And, if you purchase and read the book based upon this email, let me know what you got out of the book. There’s also one copy now circulating in the local group lending library (thanks to Laura).

 

“The 36-Hour Day” – excerpts on swallowing, tube feeding, and end of life care

This post may be of interest to dementia caregivers.

There’s a terrific book for dementia caregivers titled “The 36-Hour Day.”  I highly recommend this book for all dementia caregivers, whether it’s Alzheimer’s or a non-AD dementia.

Here are some excerpts on swallowing, malnutrition, weight loss, choking, feeding tubes, dehydration, and end-of-life decisions from that book.

Robin

Not Swallowing
Sometimes a person will carry food around in his mouth but not swallow it. This is due to forgetting how to chew or swallow. This is an apraxia and is best handled by giving the person soft foods that do not require much chewing.

Malnutrition
People with dementia can easily become malnourished, even when their caregivers are doing the best they can.

Weight Loss
People with dementia lose weight for all the same reasons that any other person does. Therefore, if he loses weight and is not on a diet, the first step is to consult the person’s physician. Weight loss often indicates a treatable problem or a disease unrelated to the dementia. Do not assume that it signals a decline. It is important that the physician search carefully for any contributory illness. Is the person constipated? Has the person had a new small stroke? Is the person depressed? Depression can account for weight loss even in a person who has a dementia. Poorly fitting dentures or sore teeth or gums often contribute to weight loss. Weight loss very late in the illness may be part of the disease process itself. Certainly all other possible causes should be considered.

Choking
Sometimes people with dementing illnesses have difficulty coordinating the act of swallowing and choke on their food. If the person has difficulty changing his facial expression…he may also have trouble swallowing.

When to Consider Tube Feeding
People with dementia stop eating for many reasons. They may have difficulty swallowing due to apraxia, ulcers in the esophagus, esophageal obstruction (narrowing), or overmedication. They may dislike the food being offered, not recognize it as food, lose the sense of feeling hungry or thirsty, or be sitting in an uncomfortable position. People with dementia may stop eating when they are experiencing a concurrent illness; they may resume eating when they recover. Even severely impaired people may have a depression that causes them to stop eating. However, some people reach a point in their illness when they are no longer able to eat or swallow.

It is helpful if you can talk about this issue [of a feeding tube] before it arises or as soon as the person begins to have difficulty swallowing or significant weight loss. It is important to discuss all aspects of the decision to place a feeding tube with a physician who knows the person well.

Dehydration
Most experts agree that dehydration itself somehow diminishes or abolishes the experience of thirst and hunger, but we cannot be sure this is true. While knowledge gained from people dying from other causes may not apply to people with dementia, cognitively normal individuals who have recovered from severe hydration do not report feelings of discomforting thirst.

What Kind of Care Can Be Given at the End of Life?
When a person has a chronic, terminal illness, the person’s family must often make decisions about when to allow treatment and when to accept the declining course of the illness. There are few right or wrong answers, and there are many things that are not understood about the last stages of life. The questions that families often face include whether to hospitalize a person, use tubes to feed a person who has stopped eating or markedly limit their food and fluid intake, or treat concurrent illnesses with antibiotics or surgery.

As you make these decisions, be cautious about accepting dogmatic opinions from “experts.” Like the rest of us, professionals can easily confuse personal values with fact in this emotional-laden area.

Neither you nor the doctors may be able to say whether an intervention will help or will be distressing to a person with dementia who is close to death.

Ask your physician how likely it is that the person will return to some previous level (that of a week ago or a month ago, for instance). Is it likely that the person’s death will be delayed by hours, days, or months by the proposed intervention? What are the available alternatives? Are there any other interventions that might be less distressing?

It can be difficult for family members to discuss these painful issues. Some people may refuse to talk about them; others may become angry. Some feel that it is wrong to “plan” for a death. However, talking things over often relieves feelings of anxiety and dread as death approaches and allows for clear and direct communication with the medical team. Without this, the family’s control over the last days of the person’s life can be limited. If there are disagreements among family members, show this section [of the book] to your family members and ask the physician, social worker, or clergyperson to help coordinate a family discussion. Suggest that family members not bring up old disagreements but focus on this issue.

The death of the ill person, even after so long an illness, may be painful, and the practical tasks surrounding the death are distasteful to many of us. Still, arranging a gentle and dignified death is one way you can give love and care to the ill person, and it will allow you to grieve in the way that is right for you without intrusions from strangers.