ArticleJournal of the Saudi Heart Association2024
Assessment of Coronary Collaterals Among Patients With ST-segment Elevation Myocardial Infarction Undergoing Primary Percutaneous Coronary Intervention and its Impact on In-hospital and 30-day Mortality: A Prospective Observational Study.
Article in Journal of the Saudi Heart Association, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers, 1 of them a synthesis that pooled it.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
2 citing papers in PubMed, 1 synthesis or guideline pooled it.
- Coronary collateral circulation and mortality in ST-elevation myocardial infarction undergoing primary PCI: an updated systematic review and meta-analysis of 18,443 patients.BMC cardiovascular disorders · 2026Pooled it
- A Systematic Review of risk factors for major adverse cardiovascular events in patients with coronary heart disease who underwent percutaneous coronary intervention.Frontiers in physiology · 2025Article
Corrections and comments
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Authors and funding
9 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Objectives: This study aimed to determine the distribution of coronary collaterals (CC) as per the Rentrop Collateral Score (RCS) among patients with ST-segment elevation myocardial infarction (STEMI) and its impact on in-hospital and 30-day mortality after primary percutaneous coronary intervention (PCI). Methods: In this study, a selected sample of consecutive STEMI patients was assessed for the development of CC as per the RCS classification. An RCS grade of 2 or 3 was taken as the presence of CC with either partial or complete filling of the infarct-related artery (IRA). Patients were followed during the hospital stay and up to 30 days, and the incidence of major adverse cardiovascular events (MACE) was recorded, which included mortality, re-infarction, stroke, and hospitalization due to heart failure. Results: This study was conducted on a sample of 347 patients; 81.6% (283) were male, and the mean age was 56.2 ± 10.3 years. CC was not visible (RCS-0) in 206 (59.4%) patients, visible but without filling of the IRA (RCS-1) in 39 (11.2%) patients, and visible with partial (RCS-2) and complete (RCS-3) filling of the IRA in 72 (20.7%) and 30 (8.6%) patients, respectively. No significant differences were observed in the incidence of in-hospital mortality and short-term MACE between patients with and without CC, with an in-hospital mortality rate of 2% vs. 4.9% (p = 0.248) and a MACE rate of 7% vs. 6.4% (p = 0.850), respectively. Conclusion: Good CC with either partial or complete filling of the IRA was observed in more than one-fourth of the patients with STEMI. However, no significant benefits of good CC were observed.
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