Rejection and graft vasculopathy secondary to effects of Crohn's disease in a heart-transplanted child
Bibliographic record
Abstract
Patients require immunosuppression after heart transplantation. Conditions such as Crohn's disease can impact tacrolimus absorption and pharmacokinetics. Subtherapeutic tacrolimus levels can lead to rejection and development of donor-specific antibodies (DSA), resulting in the development of cardiac allograft vasculopathy. We present a boy who underwent an ABO blood groupincompatible heart transplant at 10 months of age, and developed diarrhea and subtherapeutic tacrolimus levels with subsequent development of de novo DSA, and then acute cellular and antibody-mediated rejection. He was diagnosed with Crohn's disease, which required vedolizumab for control. Despite aggressive reduction of his DSA, he developed rapidly progressive cardiac allograft vasculopathy and required retransplant, with a high prevalence of plasma cells in the explanted heart. Donor-directed blood group antibodies remained negative. This case demonstrates the importance of early consideration of inflammatory bowel disease for patients with diarrhea and subtherapeutic tacrolimus levels, as prompt diagnosis and treatment may prevent secondary graft injury.
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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 | 0.001 | 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 | 0.002 | 0.002 |
| Insufficient payload (model declined to judge) | 0.001 | 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 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".