What is a Concussion?
Concussions are a type of mild traumatic brain injury. Common causes include car accidents, sports, falls, or workplace accidents. Concussions can result from direct impact to the head, or from forces elsewhere in the body such as sudden acceleration or deceleration that cause an injury to the brain and brain-stem. The result is damage to cells and chemical imbalances that disrupt normal brain function.
Immediately following injury a sequence of chemical processes occur as the brain attempts to restore its normal balanced state. This increased activity in the brain is happening at a time when blood flow is decreased to the site of injury, creating an increased demand for energy. The resulting impairments in neurological function can cause a variety of signs and symptoms:
|Headache||Drowsiness or fatigue||Feeling foggy|
|Nausea||Irritability||Trouble thinking clearly|
|Vomiting||Depression||Feeling slowed down|
|Blurred or double vision||Anxiety||Difficulty concentrating|
|Balance problems||Sleeping more than usual||Difficulty remembering|
|Dizziness||Difficulty falling asleep||Trouble finding words|
|Sensitivity to light or noise||Sadness||Confusion|
First Steps Following Injury
Concussions are often under-reported and misdiagnosed, and it is important to note that loss of consciousness is not necessary for a diagnosis. Contributing to the difficulty in identifying concussions is the lack of imaging or other tests to aid in diagnosis. Unless there is bleeding or swelling in the brain, the changes that occur with a concussion are not visible on a CT or MRI. If a concussion is suspected, an evaluation by a physician is recommended, and unless symptoms are severe or quickly worsening it is usually not necessary to visit the emergency room. Once the diagnosis is established and conditions requiring further medical treatment are ruled out, treatment should begin immediately.
Timely intervention following a concussion is essential to ensure optimal management and recovery. An outdated approach to concussion treatment is to stay in a quiet dark room until symptoms are resolved. With a growing demand for evidence-based treatment strategies, there is a wealth of new research that refutes this old-fashioned ‘dark room’ approach. Although complete rest is recommended for the first 48-72 hours after injury, research supports a more active approach to recovery following the initial rest period. Prolonged physical rest can lead to de-conditioning, depression and fatigue, making it more difficult to return to the previous level of physical activity.
Complete physical and cognitive rest immediately following a concussion is critical to ensure adequate energy supplies for the brain as it attempts to heal. Excess physical or cognitive exertion at this time will use precious energy that the brain needs and can result in exacerbation of symptoms and prolonged recovery. Physical rest means no exercising and caution with exertion around the house. Cognitive rest should focus on refraining from activities that require concentration (schoolwork, reading), as well as visual attention (television, video games, computer or phone use). Alternative options are listening to music or audio books.
Importance of Physiotherapy
A visit to a physiotherapist with advanced concussion management training is recommended for a detailed assessment following a concussion. Your physiotherapist will take a thorough history and can assess visual and vestibular symptoms, balance, cognitive function, and any additional injuries sustained at the time of concussion. Recommendations for the initial rest period as described above will be tailored to each individual, and further suggestions for management of symptoms will be provided.
Treatment plans involve a carefully monitored graded program of exertion to assist with a safe return to work/school and then sport. Every individual will experience a different set of symptoms following concussion, and as a result there is not a ‘one size fits all’ approach to treatment. This is why having a professional guide you through recovery is valuable. Specific and progressive exercises will be provided to target deficiencies in the vestibular and visual systems. To facilitate a gradual return to school or work, suggested accommodations would be provided to minimize symptoms and maximize participation. Additionally, manual therapy to address complaints such as neck pain or headaches can be part of treatment. Once the individual has returned to school or work, physical exertion testing is the last step before being cleared for sport.
Recovery time frames vary between individuals, but for many people, symptoms resolve in a month or less. However, there are a number of factors that can delay or prolong recovery. Stay tuned for part 2 of the concussion management blog series to learn more.