HockeyNow question and answer with Charles Tator (one of the best);
HN: What have we learned about concussions that maybe we didn’t know a decade or two or three ago?
CT: There are about 30 things that we didn’t know just 10 years ago. For example, the adolescent brain seems to be most susceptible to concussion and takes the longest to recover. It’s rather unfortunate because that age is when kids are now big enough and fast enough that they are getting concussions—it’s also the risk-taking age.
Also, women appear to concuss more easily than men; and that holds for sports like hockey and basketball. We’re not really sure why that is but that’s what the data is telling us.
Unfortunately, there are still a lot of unanswered questions about concussions. We still don’t know the exact mechanism—although, rotational acceleration is more important in producing concussions than linear acceleration. And also, we don’t know how to detect a concussion on imaging techniques; for example, there is no telltale sign on a CAT Scan. And the MRI (magnetic resonance imaging) is still not showing us the effects of concussion. We are hopeful that some newer sequences of MRI will be more informative.
A concussion is still a clinical diagnosis, meaning that it depends on a knowledgeable examiner, like a physician, as well as a compliant patient. And not all patients are compliant; there are still people who want to hide the symptoms and signs of a concussion.
HN: How important is recognition of a concussion?
CT: All you have to do is look at Sidney Crosby—the fact that he got his first concussion on a Monday and it wasn’t recognized; and then on the Wednesday, he got his second concussion and it took a year to recover. It’s important to sit out until you’ve fully recovered and follow the six-step process of gradually incorporating more physical activity, so that your brain is ready to take another hit. If you run around the block and get a headache and get dizzy, that means your brain is not ready for the next hit and then you’re subject to the serious consequences of another concussion because your brain has not recovered fully from the first one.