ArticleEuropean journal of medical research2022
Myocardial infarction size as an independent predictor of intramyocardial haemorrhage in acute reperfused myocardial ischaemic rats.
Article in European journal of medical research, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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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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Who cites it
2 citing papers in PubMed, 3 citations in OpenAlex.
- Salvianolic acid B protects cardiac function via β3-AR/miRNA-1 axis-mediated cardiomyocyte proliferation in myocardial infarction rats.American journal of translational research · 2026Article
- The Clinical Significance and Potential of Complex Diagnosis for a Large Scar Area Following Myocardial Infarction.Diagnostics (Basel, Switzerland) · 2025Article
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Authors and funding
12 authors at 5 institutions in 2 countries.
Funding
Abstract
backgroundIn previous studies, haemorrhage occurred only with large infarct sizes, and studies found a moderate correlation between the extent of necrosis and haemorrhage, but the extent of infarction size in these studies was limited. This study aimed to find the correlations between intramyocardial haemorrhage (IMH), myocardial infarction (MI), and myocardial oedema (ME) from small to large sizes of MI in a 7.0-T MR scanner.
methodsDifferent sizes of myocardial infarction were induced by occluding different sections of the proximal left anterior descending coronary artery (1-3 mm under the left auricle). T2*-mapping, T2-mapping and late gadolinium enhancement (LGE) sequences were performed on a 7.0 T MR system at Days 2 and 7. T2*- and T2-maps were calculated using custom-made software. All areas were expressed as a percentage of the entire myocardial tissue of the left ventricle. The rats were divided into two groups based on the T2* results and pathological findings; MI with IMH was referred to as the + IMH group, while MI without IMH was referred to as the -IMH group.
resultsThe final experimental sample consisted of 25 rats in the + IMH group and 10 rats in the -IMH group. For the + IMH group on Day 2, there was a significant positive correlation between IMH size and MI size (r = 0.677, P < 0.01) and a positive correlation between IMH size and ME size (r = 0.552, P < 0.01). On Day 7, there was a significant positive correlation between IMH size and MI size (r = 0.711, P < 0.01), while no correlation was found between IMH size and ME size (r = 0.429, P = 0.097). The MI sizes of the + IMH group were larger than those of the -IMH group (P < 0.01).
conclusionsInfarction size prior to reperfusion is a critical factor in determining IMH size in rats.
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