Right Ventricle Foreign Body: A Case of a Migrating Iliac Stent Entrapped in the Tricuspid Valve
Bibliographic record
Abstract
We report a 27-year-old man with a history of atrial fibrillation, pericarditis, and May-Thurner syndrome who underwent a venoplasty with two self-expandable stents in the left common iliac vein. One year later, he presented with tricuspid valve insufficiency and a dilated right atrium. His echocardiogram showed a foreign body in the right ventricle enmeshed in the tricuspid valve. This was identified as a migrating iliac stent confirmed by the absence of one of the peripheral stents on venogram. He failed a percutaneous approach to retrieve the stent and underwent subsequent surgical extraction with open sternotomy. There was significant damage to the tricuspid valve necessitating valvuloplasty and annuloplasty. We believe the migrated stent may have been relatively small for this patient’s vascular anatomy and this serious complication could have been avoided by proper stent size selection. Fortunately, our patient is now asymptomatic with no functional limitations. J Med Cases. 2014;5(12):636-638 doi: http://dx.doi.org/10.14740/jmc1991w
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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 | 0.004 |
| Meta-epidemiology (narrow) | 0.002 | 0.001 |
| Meta-epidemiology (broad) | 0.002 | 0.002 |
| Bibliometrics | 0.003 | 0.001 |
| Science and technology studies | 0.002 | 0.002 |
| Scholarly communication | 0.002 | 0.002 |
| Open science | 0.001 | 0.002 |
| Research integrity | 0.007 | 0.003 |
| 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".