Apr 15, 2019

Two Roads Diverged...

There are two ways to go after stroke: 
1. Compensation (technically: The compensatory approach)
2. Recovery (technically: The restorative approach)


Compensation involves getting on with your life by any means necessary. If your right hand doesn't work, you do everything with your left hand. If you can't walk because your foot drops, you put on an AFO. If you have trouble speaking, there's an app  for that.

Recovery involves using the intact part of the brain to take over for the "stroked" part of the brain.

It would be nice to say that the focus of clinical rehabilitation is on recovery. But for the most part, managed care only pays for compensation. Insurance companies want to get the survivor safe, functional, and out the door. Why do they want the survivor safe? Because an unsafe survivor will cost them more money down the road (think falls). Why do they want the survivor out the door? Because every day in any clinical setting costs a ton of money. But while survivors also want to be safe, and out the door, is it in their best interest to be "functional"?

On the face of it, sure, survivors want to be able to function. "Function" is a catchall word that means "getting on with your life." And it's seductive. Everyone wants to be functional. Everyone wants to be independent, and able to
function.

But there is a problem with function. And it's not just a generalized idea that if you "focus on function" you'll ignore recovery. It's a very specific concept based in neuroscience.

It would make sense that if you focus on learning compensation, you would spend less time on recovery. And this would mean that you would become better at compensation, but less recovered. But it's more than just a time issue. It's a brain issue.

It turns out that something special happens to the brain after stroke. The brain is in an almost "infantile state" after stroke (in fact, after any brain injury). And "infantile state" is a good thing. The brain, through a release of special proteins is "primed" for learning
— like an infant's brain. But what will it learn?

Well, it could learn to compensate. If you are right-handed and you have limited use of your right hand after stroke, the brain could learn to compensate. Your left hand would be doing a whole bunch of things never did before. The left hand is now handwriting, attempting to tie shoes, brushing the hair and teeth, and dressing. And it's doing it all alone
no right hand to help. So during this period in which the brain is "primed" for learning, the left hand does all the learning.

But if the focus is not compensation, but recovery, there will be more recovery. The brain is "primed" for learning, and it learns to recover.

Use what you love to recover what you love

I've said this before, but it bears repeating:

Recover so you can do what you love and use what you love to recover.

This is the hidden secret of recovery. It’s hidden because it has nothing to do with rehab or rehab science or physiatry or even neurology. It has to do with neuroscience; the neuroscience of the human brain

Here's the rule: Your brain will rewire (not just for stroke but for anything you learn) if you care about what you are rewiring for. Rewiring= learning. In neuroscience learning = "Changing the structure and/or function of neurons"= "brain rewiring."

But unless you care about what you learning you won't learn it.

Take math. How many adults have used an algebraic equation in the last year? Probably about 2%. And 95% of that 2% used algebra because they had to take an algebra course to graduate. Don't get me wrong, math is important. But the math most of us see as important can be done on a dollar stroke calculator. But algebra? You never really learned it because it has no importance to your everyday life. Now consider something like texting or using a new cell phone. We learn it in a matter of days because it’s important.

The same is true for stroke recovery. Many of the "ADLs"  (activities of daily living) that are used to rehab people after stroke are dry and boring. Things like dressing, grooming, bathing etc. are all necessary, but they're not very interesting to the brain.

Here's my suggestion: as much as possible, focus on things that you really care about. If it's important to you it will be important to your brain. The more pertinent is to you, the more brain rewiring can flower.

The following video is a good example of this. It's unusual example because the guy uses what he loves to "stay in the game," not rehab in the traditional sense. Have a look at the video. His right arm is still not working. But his love of music is.

The telling shot is approximately 50 seconds in. That, my friends, is "dense hemiparesis."

 Click the photo for the full story

This entry is dedicated to Mike Chambers 

Thanks for Todd Jasko for the idea!

Apr 8, 2019

Neuroaid: Scam


So. It turns out that in the largest clinical trial ever of the drug, neuroaid was  "statistically no better than placebo in improving outcomes." Who'da thunk? Oh yeah, we did!

So how do you think neuroaide spun it? Like punks, natch. "Researchers found NeuroAiD, a stroke treatment based on Traditional Chinese Medicine, increases the odds of achieving a better functional outcome." "We are totally full of crap," they did not add.

Apr 2, 2019

Predicting hand recovery by infarct size -- not.

Interesting work here by my colleague Stephen J. Page.


It seems like in "no-brainer." The more brain destroyed by the stroke, the greater the disability. Right? Except that when it comes to arm and hand movement, that may not be true.

"Historically, lesion size been thought to influence recovery, but we didn't find that to be the case when looking at regaining arm and hand movement," Steve put it.

There is no way to stare at your brain scan and A.) know what the deficit is gonna be B.) know how profound any deficit will be C.) predict recovery. 



(Find the published article here)

One other note: I've always disliked the term "massive stroke." Most doctors, and therefore survivors, claim that any stroke is a massive stroke. I've heard the claim that the word massive means "likely fatal." But if that is true then it has nothing to do with the mass (size) of the infarct. Thus, the word massive is meaningless. It is a superlative to add when the word "stroke" is somehow not enough.

Apr 1, 2019

Use what you've got to get what you need.

If you've had a stroke, your spinal cord still works fine. The spinal cord takes over some aspects of movement. The first step in this process of the spinal cord taking over is spasticity. The brain can't move you, so spasticity, generated in the spinal cord, takes over. And as much as we hate spasticity, things could be worse. Spasticity is better than nothing. "Nothing" in this case would be a completely flaccid affected ("bad") side. And being flaccid is worse than being spastic. Trust me on this.

But if we go a step beyond spasticity towards recovery there is an intermediate step. This intermediate step is known as synergy. The spinal cord basically allows for basic movements. The brain is not working, the spinal cord takes over, and the spinal cord allows very basic movements.

The synergies, although often disparaged by clinicians, are brilliant. In the upper extremity, synergy allows for the most important movement you can imagine: 
 
Feeding. It looks like this...


 

In the lower extremity the flexor synergy looks very much like a stepping pattern.

Clinicians have, for 40 or 50 years or so, said that synergies are bad. I disagree. Synergies can be used in a way that replicates good coordinated movement. Synergies give you the ability to at least attempt to replicate a normal movement. Enough attempts and the brain rewires and the synergies are discarded.

Watch this video. This stroke survivor (Brian Redd) is on the right track... use what you have to get more. 

(At 2:35 he provides a stellar description of the flexor and extensor synergies of the leg).