Effectiveness of Botulinum Toxin-A on Face, Head, and Neck Scars: A Systematic Review and Meta-Analysis
Why this work is in the frame
A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.
Bibliographic record
Abstract
Background: Botulinum toxin A (BTA) temporarily paralyzes nearby muscles to reduce tension in wound sites, inhibiting scar hyperplasia. Objective: To evaluate the effectiveness of BTA injection on scar formation and quality in various face, head, and neck sites. Methods: A comprehensive search was conducted across four electronic databases and registries to identify relevant studies. We assessed the following outcomes: visual analog scale (VAS), Vancouver scar scale (VSS), scar width, patient self-assessment scale, Stony Brook scar evaluation scales, Observer scar assessment scale, Manchester scar scale, and patient scar-assessment scale. Results: This systematic review included 20 studies encompassing 894 patients, of which, 18 studies were eligible for meta-analysis. The VAS and VSS significantly improved with BTA compared to controls which significantly reduced scar width at the first and second measurement points compared to controls. Subgroup analyses revealed that BTA had better upper lip and forehead outcomes. Conclusion: This systematic review and meta-analysis found that scars of the face, head, and neck were improved with BTA treatment compared to controls. This highlights the need for further study, especially concentrating on the upper lip and forehead regions, where improved outcomes were identified on subgroup analysis.
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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 | 0.003 | 0.004 |
| Meta-epidemiology (narrow) | 0.001 | 0.000 |
| Meta-epidemiology (broad) | 0.022 | 0.002 |
| Bibliometrics | 0.001 | 0.002 |
| Science and technology studies | 0.000 | 0.001 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 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