The First Reported Case of Second Impact Syndrome: A Reexamination of Dr Fekete's Case Report from 1968
Bibliographic record
Abstract
Background In the December 28, 1968 edition of the Canadian Medical Association Journal, Dr John Fekete described a 16-year-old hockey player with fatal cerebral edema following a brain impact while actively symptomatic of a concussion incurred 4 days ago. This case has been described as a “possible” case of second impact syndrome, an entity that was named in 1984 and purportedly first described by Schneider in 1973. Method An audit of material in the public register of Dr Fekete's case was undertaken. Information sources included the newspaper report of the death, transcripts from a coroner's inquest held 12 days later, including the autopsy report, genealogical data available online, and available internet resources. Results There was clear documentation of concussive symptomatology following an initial head injury and evidence of a medical assessment, thus fulfilling the “definite” clinical criteria for second impact syndrome as proposed. After 4 days of ongoing concussive symptomatology, a dramatic, rapid neurological deterioration took place following an apparently unremarkable body contact and fall on the ice while playing hockey. His primary brain pathology included cerebral edema. Conclusion Cerebral edema may follow primary or secondary head injury, the latter comprising second impact syndrome. Dr Fekete's case, as described in the December 28, 1968 edition of the Canadian Medical Association Journal, should be recognized as the first description of this condition.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.005 |
| Meta-epidemiology (narrow) | 0.001 | 0.001 |
| Meta-epidemiology (broad) | 0.001 | 0.001 |
| Bibliometrics | 0.003 | 0.001 |
| Science and technology studies | 0.003 | 0.002 |
| Scholarly communication | 0.002 | 0.002 |
| Open science | 0.002 | 0.002 |
| Research integrity | 0.006 | 0.004 |
| Insufficient payload (model declined to judge) | 0.002 | 0.001 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".