Dilated Cardiomyopathy in Epidermolysis Bullosa: A Retrospective, Multicenter Study
Bibliographic record
Abstract
Dilated cardiomyopathy (DC) has been reported in severe epidermolysis bullosa (EB) subtypes. Poor nutritional status, low carnitine levels, selenium deficiency, chronic iron overload, drugs and viral etiology have been proposed as potential contributors. This was a retrospective, descriptive, multicenter study describing EB patients that developed DC, and determining potential pre-disposing risk factors. Fifteen patients were enrolled in the study; 11 of them were male subjects (73%). Eighty-seven per cent of the participants had dystrophic EB and 13% had junctional EB. Mean age at diagnosis of DC was 12.18 +/- 4.99 years. Chronic anemia was diagnosed in 13 of 15 patients (86.7%). Sixty per cent of patients had prior red blood cell transfusions. At diagnosis, selenium levels were low in 55% of the patients (n = 11) and total carnitine levels were low in 45% of the patients (n = 11). Systolic function was moderately impaired, with a mean shortening fraction of 19.38% (SD = 5.04, n = 8). After a mean follow-up period of 6.3 +/- 4.8 years, six patients were alive without being on any medications (40.0%), two were alive on medications (13.3%) and seven had died (46.7%). Limitations of the study was that it was a retrospective chart review with relatively small sample size. Retrospective chart review, relatively small sample size. This study substantiates the association between DC and EB. Currently, there is no single risk factor identified in EB patients that leads to DC. Further prospective studies are needed.
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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 | 0.003 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.001 | 0.001 |
| Science and technology studies | 0.001 | 0.000 |
| Scholarly communication | 0.001 | 0.001 |
| Open science | 0.000 | 0.001 |
| Research integrity | 0.001 | 0.000 |
| 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".