Effect of inhibition of the Na+/H+ exchanger with cariporide on left ventricular function in acute coronary syndromes: results from the echocardiographic substudy of the GUARDIAN trial.
Bibliographic record
Abstract
OBJECTIVE: To evaluate the effects of inhibition of the Na+/H+ exchanger (NHE) on regional left ventricular dysfunction in patients with a non-ST elevation acute coronary syndrome (ACS) BACKGROUND: NHE inhibition protects against myocardial necrosis and stunning in ischemia-reperfusion models. METHODS AND RESULTS: In a substudy of the GUARd During Ischemia Against Necrosis (GUARDIAN) trial, 141 patients with an ACS and wall motion abnormalities on a baseline echocardiogram underwent repeated studies after 48 h and 36 days to determine the extent of early and late recovery of ventricular function. Patients were randomized to cariporide 20 mg, 80 mg or 120 mg intravenously three times per day or placebo for two to seven days. The wall motion score index improved from baseline to day 36 by 0.13+/-0.21, 0.16+/-0.34 and 0.15+/-0.28, respectively, in the cariporide groups, and by 0.10+/-0.16 with placebo (P=0.57). From baseline to 48 h, the wall motion score index decreased by 0.04+/-0.16, 0.08+/-0.20 and 0.03+/-0.22, respectively, for the cariporide groups and by 0.03+/-0.11 with placebo (P=0.09); the number of abnormal chords (centreline method) decreased by 11.2+/-24.0, 9.5+/-24.3 and 8.1+/-27.9, respectively, in the cariporide groups compared with an increase of 0.6+/-20.0 with placebo (P=NS). CONCLUSION: No significant benefit of NHE inhibition could be detected in ACS patients in the GUARDIAN trial.
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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 | 0.001 |
| Meta-epidemiology (narrow) | 0.001 | 0.000 |
| Meta-epidemiology (broad) | 0.002 | 0.001 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.001 |
| Scholarly communication | 0.001 | 0.000 |
| Open science | 0.001 | 0.000 |
| Research integrity | 0.001 | 0.002 |
| Insufficient payload (model declined to judge) | 0.002 | 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".