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Netherlands Heart Journal logoLink to Netherlands Heart Journal
. 2002 Sep;10(9):353-356, 357-359.

Angiographic determinants of infarct size after successful percutaneous intervention for acute ST-elevation myocardial infarction: the impact of distal embolisation

JPS Henriques, F Zijlstra, JP Ottervanger, J-HE Dambrink, AWJ van 't Hof, JCA Hoorntje, M-J de Boer, H Suryapranata
PMCID: PMC2499766  PMID: 25696128

Abstract

Background

We investigated the impact of distal embolisation and other angiographic determinants in patients after successful primary angioplasty for acute myocardial infarction.

Methods

Angiographic data were assessed on the coronary angiogram carried out immediately after successful (TIMI 2 or 3) coronary angioplasty in 631 consecutive patients with acute myocardial infarction. Embolisation was defined as a distal filling defect with an abrupt 'cutoff' in ≥1 of the peripheral coronary artery branches of the infarct-related artery, distal to the site of angioplasty. Endpoints were left ventricular ejection fraction (LVEF) and enzymatic infarct size.

Results

Left anterior descending artery related myocardial infarction, impaired myocardial blush and distal embolisation were independent determinants of infarct size. Distal embolisation was present in 102 patients (16%) and was associated with a larger enzymatic infarct size (LDH Q48 2250 vs. 1532, p=0.001) and a lower LVEF (41% vs. 44%, p=0.04). There was no difference in the frequency of distal embolisation between patients treated with or without stents.

Conclusions

In successful primary angioplasty, infarct-related artery, impaired myocardial blush and distal embolisation are independent determinants of infarct size. Distal embolisation can be visualised in 16% of the patients and is associated with a larger enzymatic infarct size and lower LVEF. Intracoronary stenting is not associated with an increased risk of distal embolisation during primary angioplasty.

Keywords: angiography, coronary stents, distal embolisation, myocardial blush grade, myocardial infarction, primary coronary angioplasty

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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