ABSTRACT
Resumen: Existe evidencia de que luego de un evento coronario (EC) sucede una respuesta inflamatoria que acrecienta la disfunción endotelial y que puede motivar un nuevo EC a corto plazo. Se describe reincidencia de fenómenos isquémicos en el vaso comprometido inicialmente y en otros territorios vasculares. Las modificaciones fisiopatológicas potencialmente terapéuticas no tienen un impacto clínico aplicable en la práctica cardiológica habitual.
Summary: There is evidence that after a coronary event, an inflammatory response is generated, increasing the endothelium dysfunction, which may motivate a new short-term coronary event. Recurrence of ischemic phenomena is described in the vessel involved in the initial event and other vascular territories. Potentially therapeutic physiopathological modifications do not have a clinical impact applicable to usual cardiological practice.
Resumo: Há evidências de que, após a doença arterial coronariana, há inflamação que aumenta a disfunção endotelial e pode levar a mais doenças coronárias em pouco tempo. Se descreve reincidência de fenômenos isquêmicos no vaso comprometido inicialmente e em outros territórios vasculares. As alterações fisiopatológicas potencialmente terapêuticas não têm impacto clínico que possa ser aplicado na prática cardiológica habitual.
ABSTRACT
Objective To investigate the prevention effect of Ezetimibe with loaded dose on hematologic parameters and re-infarction in patients undergoing PCI.Methods 240 cases of patients with non ST segment elevation myocardial infarction performed PCI from October 2012 to October 2014 were selected and randomly divided into two groups,the control group received conventional dose Ezetimibe 10 mg every time,qd,the study group received loading dose ezetimibe 20 mg every time, qd, both two groups treatment 30 days.The inflammatory factors, myocardial injury and vascular endothelial function were compared before, 24 h and 30 d after the operation, and patients were followed up for two years,record adverse reactions. Results Compared with before treatment,levels of serum inflammatory factor,myocardial injury and vascular endothelial function index in different time points had differences by single factor analysis of variance(P<0.05),and compared with the control group, levels of serum hs-CRP,TNF-α,IFN-γand IL-6 in the study group were lower, levels of serum CK-MB,cTnI and BNP were lower,the contents of ET in serum were lower,and the contents of NO were higher(P<0.05).The improvement degree in the study group of myocardial microcirculation perfusion after treatment was higher(P<0.05).No case shedding phenomenon occurred during the two year follow-up, and there was no statistical significance in the incidence of cardiovascular events between two groups.Conclusion Loading dose of ezetimibe can protect myocardium,and it can inhibit the inflammatory reaction and vascular endothelial injury caused by operation,it also can improve myocardial microcirculation.