Commentary: Thoracoabdominal aneurysmectomy: Operative steps for Crawford extent II repair: The devil is in the detail
Bibliographic record
Abstract
Although open surgical repair remains the gold standard for treatment of thoracoabdominal aortic aneurysms (TAAA), it still carries significant mortality and serious adverse events, justifying efforts to protect the spinal cord and the visceral organs from ischemia-related complications. Lopez-Marco and colleagues1 report a very interesting step-by-step illustration of their current approach to open extent II TAAA repair. The authors routinely use sequential aortic crossclamping under left heart bypass with mild passive hypothermia (34°C), selective visceral and medullar isothermic blood perfusion, as well as renal protection through intermittent administration of cold Custodiol solution (Essential Pharmaceuticals, LLC, Durham, NC) in the renal arteries, cerebrospinal fluid drainage, monitoring of motor evoked potentials, and near-infrared spectrometry of cerebral, paraspinal, and lower limbs oxygen saturations.
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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 | 0.015 |
| Meta-epidemiology (narrow) | 0.001 | 0.001 |
| Meta-epidemiology (broad) | 0.002 | 0.001 |
| Bibliometrics | 0.001 | 0.001 |
| Science and technology studies | 0.002 | 0.002 |
| Scholarly communication | 0.002 | 0.005 |
| Open science | 0.003 | 0.001 |
| Research integrity | 0.041 | 0.042 |
| Insufficient payload (model declined to judge) | 0.009 | 0.008 |
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".