Aspirin loading and coronary no-reflow after percutaneous coronary intervention in patients with acute myocardial infarction.
Eur J Clin Invest
; 54(6): e14173, 2024 Jun.
Article
em En
| MEDLINE
| ID: mdl-38264959
ABSTRACT
BACKGROUND:
The association of aspirin loading with the risk of coronary no-reflow (CNR) after percutaneous coronary intervention (PCI) in patients with acute myocardial infarction (AMI) has not been investigated. We assessed the association of aspirin loading before PCI with CNR in patients with AMI. MATERIALS ANDMETHODS:
This study included 3100 patients with AMI undergoing PCI. Of them, 2812 patients received aspirin loading (a single oral [or chewed] or intravenous dose of 150-300 mg) and 288 patients did not receive aspirin loading before PCI. The primary endpoint was CNR, defined as Thrombolysis in Myocardial Infarction blood flow grade of <3 after the PCI.RESULTS:
CNR occurred in 130 patients 127 patients in the group with aspirin loading and 3 patients in the group without aspirin loading before PCI (4.5% vs. 1.0%; odds ratio [OR] = 4.50, 95% confidence interval, [1.42-14.21], p = 0.005). After adjustment, the association between aspirin loading and CNR was significant (adjusted OR = 4.49 [1.56-12.92]; p < 0.001). There was no aspirin loading-by-P2Y12 inhibitor (ticagrelor or prasugrel) interaction (pint = 0.465) or aspirin loading-by-chronic aspirin therapy on admission (pint = 0.977) interaction with respect to the occurrence of CNR after PCI. Chronic low-dose aspirin therapy on admission was not independently associated with higher risk of CNR after PCI (adjusted OR = 1.06 [0.65-1.72]; p = 0.824).CONCLUSION:
In patients with AMI undergoing PCI, aspirin loading before the PCI procedure at the guideline-recommended doses was associated with higher odds of developing CNR. However, due to the limited number of events, the findings should be considered as hypothesis generating.Palavras-chave
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Base de dados:
MEDLINE
Assunto principal:
Inibidores da Agregação Plaquetária
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Aspirina
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Fenômeno de não Refluxo
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Intervenção Coronária Percutânea
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Infarto do Miocárdio
Idioma:
En
Ano de publicação:
2024
Tipo de documento:
Article