• Johan H Lee, Katherine G Holste, Bela J Selzer, GartonHugh J LHJLDepartment of Neurosurgery, University of Michigan, Ann Arbor , Michigan , USA., Karin M Muraszko, and Cormac O Maher.
• School of Medicine, University of Michigan, Ann Arbor , Michigan , USA.
• Neurosurgery. 2023 Nov 1; 93 (5): 979985979-985.

BackgroundCurrently, there is no consensus recommendation regarding the safety of sports participation for pediatric patients with arachnoid cysts (ACs).ObjectiveTo prospectively survey patients with ACs to define the risk of sports-associated neurologic injury in untreated and treated patients.MethodsA prospectively administered survey was given to all patients diagnosed with an AC who presented to a single pediatric neurosurgery clinic between December 2010 and December 2021. Data were recorded on demographic information, imaging characteristics, treatment, sports participation, and presence of sports-related neurologic injury. The type and date of surgery for the AC were noted if surgery was performed.ResultsOf the 303 patients with completed surveys, 189 patients participated in sports, and 94 patients had prospective data available. There was no significant difference in cyst location or Galassi score between patients who did and did not participate in contact vs noncontact sports and those who did and did not experience a concussion. A cumulative total of 2700.5 seasons of sports were played (2499.7 in untreated and 200.8 in treated patients). There were 44 sports-related concussions among 34 patients: 43 in untreated patients and 1 in a treated patient. For all participants, the concussion rate was 16.3 per 1000 seasons of all sports and 14.8 per 1000 seasons of contact sports. The concussion rate after AC treatment was 4.9 per 1000 seasons of all sports. Three patients experienced sports-related AC rupture or hemorrhage, none of which required surgery or resulted in lasting neurologic symptoms or deficits.ConclusionThe rates of sports-related concussion and cyst rupture in patients with AC in both treated and untreated populations were low. We advocate for a generally permissive posture toward sports participation in this population.Copyright © Congress of Neurological Surgeons 2023. All rights reserved.

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