Occupational horizontal pushing inducing massive haemothorax: an unusual case report
Bibliographic record
Abstract
We report an unusual case of a 55-year-old male machine operator who developed a massive unilateral haemothorax and ipsilateral rib fracture following occupational horizontal pushing of a cold-rolled steel coil. Notably, this occurred in the absence of direct chest trauma, coagulopathy or underlying anatomical abnormalities. The patient fully recovered after timely tube thoracostomy and hospital monitoring. This case highlights the potential for severe occupational injuries resulting from horizontal pushing activities, which are often overlooked and underreported in injury statistics. To our knowledge, this is the first documented case of haemothorax induced by horizontal pushing, warranting further research to guide preventive safety measures and enhance the recognition and reporting of similar cases, thereby improving clinician awareness of indirect occupational trauma. It underscores the need for standardized force limits and ergonomic interventions to mitigate such risks and eventually eliminate manual handling of heavy machine components.
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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 | 0.003 |
| Meta-epidemiology (narrow) | 0.001 | 0.001 |
| Meta-epidemiology (broad) | 0.001 | 0.001 |
| Bibliometrics | 0.002 | 0.001 |
| Science and technology studies | 0.002 | 0.001 |
| Scholarly communication | 0.002 | 0.002 |
| Open science | 0.001 | 0.002 |
| Research integrity | 0.004 | 0.002 |
| 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".