Rapport de cas Surgical retrieval of a migrated vascular access port catheter in a dog.
Bibliographic record
Abstract
A 4-year-old spayed female Boston terrier was diagnosed with a suspected meningioma involving the optic chiasm and resulting in vision loss. A vascular access port (VAP) was placed in the left medial saphenous vein to facilitate frequent anesthetic episodes for radiation therapy. Five days after placement, the VAP was nonfunctional with the silicone catheter still intact. During VAP removal surgery, it was discovered that the silicone catheter had migrated. Intraoperative focal ultrasound could not identify the migrated catheter within the pelvic limb. Thoracic computed tomography identified the migrated catheter retroflexed onto itself in the cranial vena cava and extending into the right pulmonary artery as it passed through the right side of the heart. The dog underwent a hybrid surgical approach consisting of an endovascular retrieval forceps technique with median sternotomy for intravenous non-radiopaque foreign body removal. Postoperative complications, including regurgitation and left atrial thrombus, were managed. The left atrial thrombus persisted for 10 mo after the hybrid surgery. Key clinical message: A hybrid approach consisting of an endovascular retrieval forceps technique with median sternotomy was effective in removing an intravenous non-radiopaque foreign body in a dog.
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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 | 0.002 |
| 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 | 0.002 |
| Scholarly communication | 0.001 | 0.001 |
| Open science | 0.001 | 0.001 |
| Research integrity | 0.006 | 0.003 |
| Insufficient payload (model declined to judge) | 0.001 | 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".