Concussion without a knockout: the crash injury nobody at the scene is looking for.

The word concussion still carries a picture with it: a helmet-to-helmet hit, a player down, a trainer with a flashlight. That picture is why so many concussions after car crashes go unexamined. Nobody blacked out. The windshield is intact. The air bag did not deploy. So the fog on day three gets filed under stress, and the headache gets filed under the neck, and the person goes back to work on a brain that has not been looked at.

The Wire's standing bulletin is simple: a concussion does not require a knockout, a windshield, or a bruise. It requires the head to move fast and stop faster, which is what a rear-end hit on Manchester does by design.

What a concussion actually is

A concussion is a mild traumatic brain injury caused by a blow or a jolt to the head, or by a hit to the body that makes the head and brain move rapidly back and forth. The CDC's plain-language description is that this sudden movement can cause the brain to bounce or twist in the skull, stretching and damaging brain cells and creating chemical changes.[CDC] Loss of consciousness is not required, and most concussions happen without it.

That description maps directly onto the whiplash mechanism. The same snap that strains the neck moves the brain. Which is why the desk treats every crash with any real force, and every side impact where the head may have met the window, as a concussion question until a clinician says it is not.

The signs that get missed

The obvious signs are headache, nausea, dizziness, and sensitivity to light or noise. The ones that get missed are the ones that look like a personality: feeling foggy or slowed down, trouble concentrating or remembering, irritability or a short fuse, being more emotional than usual, sleeping more or less than usual, and a screen that is suddenly hard to look at for long. In a teenager those can read as attitude. In an adult they read as a bad week at work.

The tell is timing. If those changes started in the days after a crash and were not there before, the crash is the first suspect. The lag file explains why symptoms in general wait a few days, and concussion symptoms are no exception.

The bright line first

Chest pain, a sudden severe headache, weakness or numbness on one side, trouble speaking, a loss of bowel or bladder control, or a head injury with vomiting or worsening confusion is an emergency room trip right now, not a call to a clinic. Worsening headache, repeated vomiting, one pupil larger than the other, a seizure, slurred speech, unusual behavior, or not being able to recognize people or places are on the same list. A clinic is not the first stop for any of that.

What the clinic publishes about concussion rehab

Missouri Injury Clinic publishes TBI and concussion rehabilitative therapy after acute injury as one of its three lanes, alongside auto injuries and sports injuries. On its TBI rehab page the clinic names the tools it uses: vagus nerve stimulation (a gentle microcurrent at the tragus of the ear), neurofeedback, Alpha Stim, sensory motor integration, exercise with oxygen, oculomotor rehabilitation, and cognitive rehabilitation using computerized brain-exercise software.

The Wire is reporting that list, not endorsing a protocol or promising a result; what any of those tools does for a particular person is a conversation for the exam room. What the list tells a West County reader is practical: the concussion question can be asked and worked at the same clinic that examines the neck, rather than being handed off somewhere else. The getting seen file covers what the first visit includes.

Screens, school, and work

General guidance for the days after a suspected concussion is to reduce, not eliminate, the things that make symptoms worse: long screen sessions, loud rooms, heavy exertion, and late nights. Total darkness and bed rest are no longer the standard advice; a gradual return to normal activity, guided by symptoms, is. What that looks like for a specific person, and when a student or an employee goes back to full days, is exactly what an exam is for.

Driving deserves its own line. Slowed reaction time and trouble concentrating are concussion symptoms, and 141 at rush hour is not where you want to discover you have them. If there is any doubt, someone else drives to the exam.

For the parent making the call

Teenagers underreport. They are fine because the car is fine, because practice is Tuesday, because nobody wants to be the kid with the concussion. If a kid who was in a crash is moodier, foggier, sleeping oddly, or squinting at a phone, do not wait for them to volunteer it. The sending someone file is written for the adult who has to decide on someone else's behalf.

The Wire's position

No knockout is required. After a crash with any real force, treat the head as examined only when a clinician has examined it. A documented exam this week protects your health and your options. Book it before the week gets away from you.