Is aerobic exercise more beneficial in reducing symptoms than current standard care in patients with prolonged symptoms or PCS lasting longer than 4 weeks? Summary of Key Findings: After a thorough literature search, 4 studies relevant to the clinical question were selected. Of the 4 studies, 1 study was a randomized control trial and 3 studies were case series. All 4 studies investigated aerobic exercise protocol as treatment for PCS. Three studies demonstrated a greater rate of symptom improvement from baseline assessment to follow-up after a controlled subsymptomatic aerobic exercise program. One study showed a decrease in symptoms in the aerobic exercise group compared with the full-body stretching group. Clinical Bottom Line: There is moderate evidence to support subsymptomatic aerobic exercise as a treatment of PCS; therefore, it should be considered as a clinical option for reducing PCS and prolonged concussion symptoms. A previously validated protocol, such as the Buffalo Concussion Treadmill test, Balke protocol, or rating of perceived exertion, as mentioned in this critically appraised topic, should be used to measure baseline values and treatment progression. Strength of Recommendation: Level C evidence exists that the aerobic exercise protocol is more effective than the current standard of care in treating PCS.

Over a period of 12 months, all persons among the 10.4 million inhabitants of the state of Baden-Württemberg were included in the study who had suffered severe brain damage and were treated in special early rehab units, comprising 147 beds for adults and 43 for children. With 830 patients admitted, the incidence of severe brain damage was 7.98/100.000 in adults and 1.11/100.000 in children. 50 to 70 year old patients were over-represented, those older than 70 years were underrepresented due to geriatric rehab facilities for the latter. Male patients dominated, while female were somewhat younger. 54% of the patients were admitted from the hospital which had performed primary care, with an average stay of 67 days. Average early rehab duration was 53 days (arithmetic average; median 40 days, some patients required up to one year). 32.8% of the patients had suffered traumatic brain damage (ICD 851, 852, 854) and 40.9% non-traumatic brain affection (ICD 430, 431, 433-438, 310, 348), including 12.2% CVA (ICD 433-438), 8.5% subarachnoid and 12.3% intracerebral hemorrhage. Severity as indexed by the early rehab Barthel index improved from an initial average of -119 to -34 at discharge. 80% of the patients showed an overall improvement (71% of them by up to 200 points and 46% by up to 100 points).