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6) Persistent Symptoms
6.11 Dizziness, neck pain and headaches as predictors of recovery following sport-related concussion
  1. Kathryn Schneider1,2,3,4,5,
  2. Geoff Schneider5,6,
  3. Meng Want7,
  4. Kirsten Holte1,2,3,
  5. Michaela Chadder1,
  6. Corson Johnstone1,
  7. Victor Lun4
  1. 1Sport Injury Prevention Research Centre, Faculty of Kinesiology, University of Calgary, Calgary, Canada
  2. 2Alberta Children’s Hospital Research Institute, University of Calgary, Calgary, Canada
  3. 3Hotchkiss Brain Institute, University of Calgary, Calgary, Canada
  4. 4Sport Medicine Centre, Faculty of Kinesiology, University of Calgary, Calgary, Canada
  5. 5Evidence Sport and Spine, Calgary, Canada
  6. 6Department of Radiology, Cumming School of Medicine, University of Calgary, Calgary, Canada
  7. 6Department of Radiology, Cumming School of Medicine, University of Calgary, Calgary, Canada
  8. 7Department of Community Health Sciences and Clinical Neurosciences, Cumming School of Medicine, University of Calgary, Calgary, Canada

Abstract

Objective To evaluate symptoms as predictors of recovery following sport-related concussion (SRC).

Design Prospective cohort.

Setting Acute sport concussion clinic (ASCC) in Calgary, Alberta, Canada.

Participants Patients aged 13–60 years who were diagnosed with SRC at the ASCC.

Interventions (or Assessment of Risk Factors) Symptoms reported on the Post Concussion Symptom Scale (PCSS) on the Sport Concussion Assessment Tool (SCAT).

Outcome Measures Participants completed a questionnaire [including sex (male/female), previous concussion, medical history] and the SCAT3/5. Participants were seen by a sport medicine physician and athletic therapist or physiotherapist and followed until medical clearance to return to sport. Concussion and medical clearance were defined as per the 5th International Consensus Conference on Concussion in Sport. A cox proportional hazard regression model was used to evaluate how the presence of dizziness, neck pain or headache (DNHA) related to the outcome of medical clearance at 90 days (yes/no).

Main Results A total of 314 participants [161 (51.3%) youth, 153 (48.7%) adults; 159 (50.6%) male, 155 (49.4%) female; mean age 24.1 (95% CI 22.7–25.4)] participated in this study. Medical clearance at 90 days was achieved by 162 participants (51.6%). One of DNHA was reported by 49 (15.6%), two of DNHA by 85 (27.1%), all three of DNHA by 146 (46.5%) and none of DNHA by 34 (10.8%). Participants with one of DNHA were 0.35 (0.21–0.59), two of DNHA 0.18 (0.11–0.31) and all three 0.18 (0.12–0.29) times less likely to recover within 90 days compared to participants with no DNHA.

Conclusions Symptoms of DNHA may predict longer recovery from SRC. Further research to evaluate the mechanism is warranted.

https://doi.org/10.1136/bjsports-2023-concussion.289

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