An upfront immunomodulatory therapy protocol for pediatric opsoclonus‐myoclonus syndrome
Why this work is in the frame
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Bibliographic record
Abstract
BACKGROUND: Treatment of opsoclonus-myoclonus syndrome (OMS) has historically involved corticosteroids and intravenous immunoglobulin (IVIG) for a duration of 6-12 months or longer. This study evaluated whether a brief upfront immunomodulatory therapy protocol with rituximab reduces the duration of OMS therapy without adversely affecting OMS outcomes. PROCEDURE: Retrospective chart review was performed for consecutive children diagnosed with OMS from 2006 to 2019 at The Hospital for Sick Children (Toronto, Canada). Children treated within 3 months of diagnosis with a treatment protocol involving pulse methylprednisolone (3-5 days, followed by an oral steroid taper), IVIG and/or plasma exchange, and rituximab (protocol group, n = 7) were compared to a historical group treated primarily with prednisone and IVIG (n = 8). RESULTS: The duration of corticosteroid treatment was shorter in the protocol (median 4.5 [range 3-12] months) compared to that in the historical group (median 21.5 [range 6-70] months, P = .005), and subjects in the protocol group received fewer cycles of IVIG (median 1 [range 0-7] cycle vs 7 [range 1-70] cycles, P = .01). The proportion of children with OMS relapse was similar between the protocol and historic groups (2/6 vs 5/8, P = .59). OMS symptom rating scales at 12-month follow-up were similar in the protocol group (median 2.5, range 0-3) compared to that in the historical group (median 1, range 0-7; P = .66). CONCLUSIONS: An upfront immunomodulatory therapy protocol with rituximab permits reduction in the duration of corticosteroid and IVIG therapy without a detrimental effect on OMS outcomes. Future studies with longer follow-up will have to determine whether neurocognitive and psychosocial outcomes are improved by this approach.
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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 | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.000 | 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) | 0.001 | 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 it