When Should Concussed Students Return to Learn and Return to Play?
The Concussion Toolbox
No biomarkers or tests will yield a 100% accurate diagnosis of concussion. “However, studies have repeatedly demonstrated that if we use the tools that are available, and if we use a combination of them, we are nearing 100% sensitivity and specificity,” Dr. Starling said. In her return-to-play clinic, all patients undergo the King–Devick test, neuropsychologic testing, and objective vestibular testing. If patients report autonomic or orthostatic symptoms, they also undergo autonomic testing. “Unless I’m concerned about a skull fracture, I don’t get a CT scan of the head,” Dr. Starling said. “But we do obtain an MRI of the brain in individuals who have focal neurologic deficits, risk factors for prolonged recovery, or who have had prior concussions.” Dr. Starling recommended susceptibility-weighted imaging and diffusion tensor imaging.
Management priorities for patients with concussion include providing symptomatic treatment and preventing reinjury while the brain is healing. “Multidisciplinary symptoms require multidisciplinary treatment,” Dr. Starling said. “In my assessment, I’ll have a list of symptoms and a list of targeted approaches for each individual symptom.”
Posttraumatic Headache
“It is amazing how often I still see individuals two, four, eight weeks post injury who have never received a medication for posttraumatic headache because they’ve been told that the headache is a result of the concussion and as the concussion gets better, the headache will go away,” Dr. Starling said. Treating posttraumatic headache can relieve suffering and help the patient participate in active rehabilitation. Appropriate treatment can also prevent overuse of over-the-counter combination analgesics, which can complicate the problem. Experts in the headache community also suggest that there is a risk of chronification in untreated posttraumatic headache.
While there is a dearth of randomized, prospective, double-blind trials to guide the treatment of posttraumatic headache, “there still is an approach that you can use,” Dr. Starling said. Look for headache red flags first, then identify the phenotype and establish the headache history. If the patient had frequent migraines pre injury, it may be an indication for early initiation of a preventive medication. Initiating acute treatment early—within days—is also a priority, as is strictly monitoring for medication overuse. Also consider the comorbidities. “You don’t want to make comorbid symptoms worse,” Dr. Starling said. “For example, avoid topiramate in a patient who is having cognitive domain symptoms. Avoid sedating medications in someone who is having a lot of fatigue. Avoid steroids in a patient who is having a lot of emotional lability or difficulty with insomnia. Keep comorbid symptoms in mind when picking medications for posttraumatic headache.”
Return-to-Learn and Return-to-Play Decisions
Dr. Starling recommended symptom-limited cognitive and physical activity in the recovery phase, as opposed to total physical and cognitive rest. “There’s actually been a recent study that was done looking at strict rest,” she said. “The control group had one to two days of rest, followed by return to school and gradual return to activity. The intervention group had five days of strict rest.… The group with strict rest had higher symptom severity scores and had a longer symptom recovery. Exaggerated or extreme rest may not be the answer. Rather, we need to gradually reengage individuals back into life and give them a specific plan for graduated return to life, which includes both cognitive, as well as physical, activity.”
Return-to-learn protocols must be individualized, but there are some common goals. Dr. Starling recommended a short period of brain rest. “Not complete sensory deprivation, but rather symptom-limited brain rest. That should be followed by a brain warm-up phase where we initiate some time-limited and symptom-limited reading time—five to 10 minutes, as tolerated—and gradually increase that over time. After that, we reengage that individual back into school with extensive accommodations, which include the number of hours they are in school, as well as the curriculum, so a higher value on quality rather than quantity, and then a lot of environmental adjustments—perhaps a room that is quieter, a room where the lights are a little dimmer, they are allowed to wear a hat in class or sunglasses in class.” To avoid the sensory stimulation that characterizes school hallways between classes, which can make patients feel worse, Dr. Starling recommended that patients leave class five minutes early, spend the passing period in the nurse’s office, and then go to the next class five minutes late.
The next goal in recovery is full-day school with academic accommodations, and finally a return to learn without any accommodations. This requires an education specialist or a neuropsychologist who can get an individualized history from the patient as to what his or her day entails. A detailed recovery plan is then put into writing and provided to the patient and the school. The plan is then revised every one to two weeks as the patient recovers.
Dr. Starling suggested that physical activity could be initiated even when individuals are still having symptoms, but in a symptom-limited manner. “There have been studies looking at controlled exercise as a therapeutic approach for concussion,” she said. In an initial, nonrandomized pilot study, an exertion protocol seemed to improve symptoms, promote a faster rate of recovery, and normalize cerebral blood flow abnormalities during a cognitive task. “Although more rigorous studies are definitely needed, I think we are in the right paradigm,” Dr. Starling said. “After initial rest, but not complete sensory deprivation, active rehabilitation can be initiated, even in the presence of symptoms, as long as we have subthreshold activity.” This strategy, she said, is recommended to reduce symptom severity, speed recovery, and ensure full recovery.
“With active rehabilitation, we have to be prescriptive about what individual patients do. We want to make sure they are not exacerbating their symptoms.” At the Mayo Clinic, Dr. Starling and her team use written, as well as verbal, instructions. “We set in writing a goal heart rate that we want that individual patient to reach. In the clinical setting, we use a recumbent bike to determine a goal heart rate that is subthreshold to their symptoms. We then ask the patient to engage in activity up to that heart rate every day for the next couple of days. As they tolerate this, they can increase it [by] five to 10 beats per minute every three to seven days, and then we reevaluate this every one to two weeks to determine what the next step is.”
Once the exertion protocol is completed, a more sports-specific return-to-play protocol can be initiated. “During a concussion, the player can become deconditioned from their specific sport, so a sport-specific return to play protocol is important in that setting,” Dr. Starling said.
Recommending retirement from high-risk athletic activity is, of course, an individualized decision in which various components of the history come into play. According to Dr. Starling, the red flags for retirement include reduced threshold for concussion, neuroimaging abnormalities, persistent cognitive impairment, and debilitating refractory headaches.
