A systematic analysis of methylene blue for drug-induced shock
Why this work is in the frame
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Bibliographic record
Abstract
CONTEXT: Pharmacologically induced shock can be refractory to standard resuscitation. Methylene blue (MB) acts to prevent nitric oxide-mediated vasodilation and may be a potential treatment for refractory shock. OBJECTIVE: A systematic analysis of the literature to evaluate MB in pharmacologically induced shock. Primary outcome was survival and secondary outcome was hemodynamic improvement. MATERIALS AND METHODS: A search of MedLine/PubMed, EMBASE, Cochrane Library, TOXLINE, Google Scholar and Google was performed 10 August 2015 using a combination of text words and keywords related to MB, shock and specific drugs. We included primary literature articles reporting clinical outcomes in humans. RESULTS: The searches yielded 928 citations, with 255 exact duplicates. Of the 673 entries screened, 16 citations met study criteria and comprised 17 cases. Calcium channel blockers (CCBs) represented ten cases (six amlodipine, two verapamil, and two diltiazem), atenolol three cases as coingestant with amlodipine, five metformin, one ibuprofen, and one multidrug (quetiapine, carbamazepine, valproic acid, oxazepam, and fluoxetine). Twelve patients survived and nine had hemodynamic improvement following MB administration. Four did not respond to MB but survived with other advanced resuscitative measures. None of the seven cases had BP improvement and four died when lipid was given prior to MB, compared to one death and nine cases of BP improvement when lipid was not given. In all cases, MB was used after failing several other treatments. Bolus doses ranging from 1 to 3 mg/kg, with repeat boluses or maintenance infusions. Reported adverse events were temporary self-limited blue discolorations. CONCLUSION: While there are compelling cases describing an improved hemodynamic status following MB, there are also several cases without observed change. Currently, there is not enough evidence available to recommend the routine administration of MB in refractory pharmacologically induced shock.
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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 | 0.006 | 0.030 |
| Meta-epidemiology (narrow) | 0.001 | 0.000 |
| Meta-epidemiology (broad) | 0.014 | 0.006 |
| Bibliometrics | 0.001 | 0.001 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.001 | 0.000 |
| Research integrity | 0.002 | 0.001 |
| 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