Bronchoscopy with Bronchoalveolar Lavage versus Endotracheal Aspiration for the Diagnosis of Ventilator-Associated Pneumonia
Bibliographic record
Abstract
This study looked at the optimal approach to diagnose ventilator associated pneumonia (VAP). This was an important topic to study as VAP is known to be associated with higher mortality rate, longer stays in the intensive care unit (ICU) and higher utilization of resources for treatment. This multicenter trial included 740 patients in 28 ICUs in Canada and the United States. Mechanically ventilated, immunocompetent, adult patients with suspected VAP were randomized to undergo either bronchoalveolar lavage (BAL) with quantitative cultures of the BAL fluid or endotracheal aspiration with nonquantitative culture of the aspirate. No difference in 28 day mortality was noted between the two study groups. Both diagnostic strategies led to similar clinical outcomes and overall use of antibiotics. Immunocompromised patients and those colonized with certain resistant organisms were excluded from this trial.
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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 | 0.002 | 0.004 |
| Meta-epidemiology (narrow) | 0.001 | 0.000 |
| Meta-epidemiology (broad) | 0.002 | 0.001 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.001 |
| Scholarly communication | 0.001 | 0.001 |
| Open science | 0.001 | 0.000 |
| Research integrity | 0.002 | 0.002 |
| Insufficient payload (model declined to judge) | 0.006 | 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".