Nine Factors for Predicting the Duration of Post-Concussion SymptomsNine Factors for Predicting the Duration of Post-Concussion Symptoms https://pediatricsnationwide.org/wp-content/themes/corpus/images/empty/thumbnail.jpg 150 150 Jeb Phillips Jeb Phillips https://pediatricsnationwide.org/wp-content/uploads/2021/03/Jeb-Phillips.jpg
- September 06, 2016
- Jeb Phillips
Concussion recovery is poorly understood, but new research suggests that some factors are predictive of recovery time.
Several factors, including continued physical activity following a concussion, worsening symptoms from the time of injury to the time a patient seeks care, and a previous history of headaches, help predict which children are likely to have a protracted concussion recovery, physician-researchers at Nationwide Children’s Hospital have found.
Their study comes as the number of children seeking medical help for concussions has risen over the last decade, resulting now in 174,000 or more visits to emergency departments in the United States annually.
Despite the increase, recovery remains poorly understood. Compared to adults, who usually recover in 7 to 10 days, children may be more vulnerable and have longer-lasting post-concussion symptoms. Previous studies have found some youth continue to report post-concussion symptoms after three months, but evidence linking clinical factors to protracted symptoms is inconsistent and sometimes contradictory.
“Concussion research is still evolving,” says Anastasia Fischer, MD, a physician in the Division of Sports Medicine at Nationwide Children’s and an author of the study. “Learning which symptoms seem to prolong recovery from concussion can help direct research towards etiology and management of those symptoms and concussion injuries in general.”
To identify which factors are consistently predictive, the researchers used a multivariate analysis of symptom, demographic and other information in the records of more than 1,900 minors aged 10 to 19. The patients were referred to the Nationwide Children’s Sports Concussion Clinic from 2012 through 2014. The records included answers to questions about the concussions from the patients and their parents. The analysis showed the following factors were predictive of prolonged recovery:
- Female sex
- Continued participation in physical activity
- Loss of consciousness
- Anterograde amnesia
- Premorbid headaches
- Worsening of symptoms between injury and first physician visit
- Overall symptom burden
- Emotional symptoms, such as sadness and irritability on the day of concussion
- Emotional, cognitive-fatigue, cephalagic and arousal-stimulation symptoms the day of clinical evaluation
“Even tools as simple as a concussion symptom questionnaire and detailed history can help guide treatment and management of concussions,” says Dr. Fischer, who is also a clinical associate professor of Pediatrics at The Ohio State University College of Medicine.
Dr. Fischer and her colleagues are applying what they learned from the study.
Concussions tend to last about two to three weeks in adolescents, she says. “Setting reasonable expectations for time out of sport and duration of symptoms at a first physician visit can prepare athletes and families for appropriate care —especially if some of the factors that prolong recovery are present.”
For example, she talks with families of athletes who continued to play football, soccer or another sport after suffering head injuries but before evaluation.
“Now that we know this can ultimately keep them out of sports longer, I hope that it will encourage athletes to seek evaluation sooner after a head injury, helping to prevent further injury and hopefully optimize their recovery,” Dr. Fischer says.
Heyer GL, Schaffer CE, Rose SC, Young JA, McNally KA, Fischer AN. Specific factors influence postconcussion symptom duration among youth referred to a sports concussion clinic. The Journal of Pediatrics.2016 Jul;174:33-38.e2.
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