Operative management for extent II thoracoabdominal aortoiliac reconstruction for pneumococcal aortitis
Bibliographic record
Abstract
Infectious aortitis is an uncommon but life-threatening condition due to its potential to cause mycotic aneurysms, which may lead to vascular rupture. When signs of vascular disruption are present, isolated antibiotic therapy is insufficient, requiring combined open surgical resection of the infected aorta. A 68-year-old woman diagnosed with Streptococcus pneumoniae aortitis is presented. Multiple saccular mycotic aneurysms of varying sizes along the thoracoabdominal aorta, with intense fluorodeoxyglucose uptake on positron emission tomography scan were present in conjunction with extravascular infectious sources. Urgent Crawford extent II thoracoabdominal aortoiliac reconstruction was indicated. Due to extensive atheromatosis of the proximal descending aorta and the relative contraindication to cerebrospinal fluid drainage (spondylodiscitis), repair was performed with profound hypothermia (18°C). Renal protection was achieved using Custodiol and visceral perfusion maintained with cold blood. Each visceral artery was individually reimplanted using a 26mm multibranched graft. Distal reconstruction was completed with a bifurcated prosthesis, given the presence of severe aortic bifurcation calcification. Despite negative intra-operative cultures, histopathology confirmed extensive aortic inflammatory/reparative findings. Post-operative recovery was uneventful. At 1-year follow-up, the patient remains in good condition, with no clinical recurrence, no pathological positron emission tomography/computed tomography uptake, and a stable aortic repair without suppressive antibiotics.
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How this classification was reachedexpand
Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.001 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.001 |
| Bibliometrics | 0.001 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
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 teacher head, 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".