One-year outcomes of a single bolus r-SAK before primary PCI for STEMI: Follow-up of the OPTIMA-5 study
Bibliographic record
Abstract
The OPTIMA-5 study demonstrated that a single bolus of half-dose recombinant staphylokinase (r-SAK) before primary percutaneous coronary intervention (PCI) significantly improved the patency of infarct related artery in patients with ST-elevation myocardial infarction (STEMI) expected to undergo PCI within 120 minutes. This study aimed to investigate the 1-year clinical outcome and the effect of the r-SAK antibody on a second r-SAK thrombolysis in OPTIMA-5 patients. The clinical outcome was major adverse cardiovascular events (MACE) within 360 days. Patients’ r-SAK antibodies were determined on days 90 ±7, 180 ±7, and 360 ±14 after thrombolysis, and in-vitro r-SAK antibody neutralization experiments were performed to explore an optimal interval for a second r-SAK thrombolysis. Results showed that the MACE incidence was numerically lower in r-SAK group compared with normal saline (NS) group (14.0% vs. 20.0%, HR 0.67, 95% CI: 0.34- 1.32; log-rank <i>P</i>=0.245). The r-SAK antibody levels in r-SAK group decreased by time, but kept significantly higher than those in NS group on days 90 ±7 (2.96 ±0.68 <i>vs</i>. 0.22 ±0.53, <i>P</i><0.001), 180 ±7 (2.19 ±0.74 <i>vs</i>. 0.44 ±0.65, <i>P</i><0.001) and 360 ±14 (1.73 ±0.97 <i>vs</i>. 0.37 ±0.71, <i>P</i><0.001). The <i>in-vitro</i> r-SAK antibody neutralization experiments illustrated that the thrombolysis rate decreased exponentially as the antibody titer increased from 1.90 to 2.20 (67.80 ±14.19% <i>vs</i>. 44.32 ±21.54%, <i>P</i><0.0001). Therefore, for STEMI patients expected to undergo PCI within 120 minutes, a single bolus of half-dose r-SAK before primary PCI may reduce 1-year MACE risk. The r-SAK antibody lasts over 1 year, and a second r-SAK thrombolysis may not be indicated until 1 year after the first r-SAK thrombolysis if necessary.
Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.
How this classification was reachedexpand
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 | 0.007 | 0.009 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.001 |
| Bibliometrics | 0.001 | 0.002 |
| Science and technology studies | 0.000 | 0.001 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.001 | 0.001 |
| Research integrity | 0.000 | 0.001 |
| 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 itClassification
machine, unvalidatedMachine predicted; a candidate call from one teacher head, 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".