VENOARTERIAL EXTRACORPOREAL MEMBRANE OXYGENATION REDUCES MYOCARDIAL AND MITOCHONDRIAL DAMAGE IN ACUTE MYOCARDIAL INFARCTION.
Shock
; 62(1): 111-118, 2024 Jul 01.
Article
em En
| MEDLINE
| ID: mdl-38664765
ABSTRACT
ABSTRACT Background:
Myocardial infarction (MI) is a common cardiovascular disease with a high fatality rate once accompanied by cardiogenic shock. The efficacy of extracorporeal membrane oxygenation (ECMO) in treating MI is controversial.Methods:
MI was induced by ligating the left anterior descending artery (LAD) in adult male rats. Groups were defined as follows MI group, reperfusion for 90 min after 30 min of LAD occlusion; MI + ECMO group, reperfusion and ECMO were performed for 90 min immediately after 30 min of LAD occlusion; prolonged MI + ECMO group, ECMO was used immediately after 30 min of occlusion with persistent occlusion of the LAD for an additional 30 min, followed by 90 min of reperfusion. The myocardial infarct size and mitochondrial morphology and function data were collected and compared of each group.Results:
The ECMO groups had a smaller myocardial infarct size and larger percentage ejection fraction. Compared with the prolonged MI + ECMO group, the immediate reperfusion group had a lower percentage of infarct size (63.28% vs. 17.97% vs. 31.22%, MI vs. MI + ECMO vs. prolonged MI + ECMO). Mitochondria isolated from the ischemic zone showed an intact mitochondrial structure, including fewer voids and broken cristae, and preserved activity of mitochondrial complex II and complex IV in ECMO groups.Conclusions:
ECMO support in MI can reduce myocardial injury despite delayed coronary reperfusion.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Oxigenação por Membrana Extracorpórea
/
Infarto do Miocárdio
Limite:
Animals
Idioma:
En
Revista:
Shock
Assunto da revista:
ANGIOLOGIA
/
CARDIOLOGIA
Ano de publicação:
2024
Tipo de documento:
Article
País de afiliação:
China