Research progress on the correlation of microcirculatory resistance index in patients with STEMI
10.3760/cma.j.issn.1008-6706.2020.15.031
- VernacularTitle:急性ST段抬高型心肌梗死患者中微循环阻力指数相关性的研究进展
- Author:
Jianwei ZHOU
1
;
Jing ZHANG
;
Shenghu HE
Author Information
1. 扬州大学附属苏北人民医院心血管内科 225000
- From:
Chinese Journal of Primary Medicine and Pharmacy
2020;27(15):1917-1920
- CountryChina
- Language:Chinese
-
Abstract:
Acute ST segment elevation myocardial infarction(STEMI) is caused by plaque rupture, followed by thrombosis and acute occlusion of blood vessels.In some patients with acute myocardial infarction(AMI), although infarction-related coronary arteries are opened by revascularization, there is no reflow due to the associated coronary microcirculation.Increase the incidence and mortality of short-term and long-term cardiovascular events.On the contrary, although the associated coronary artery is still occluded in some AMI patients, the myocardial microcirculation in the perfusion area can be perfused by collateral circulation, resulting in the decrease of the elevated ST segment.Therefore, in the process of diagnosis and treatment of AMI, paying attention to the structural and functional changes of coronary artery microcirculation should be an important research field.More and more evidence shows that coronary artery microcirculation plays an important role in myocardial blood supply.Through the use of thermal dilution pressure catheter, microcirculation resistance index (IMR) can measure the function of microcirculation.IMR is a specific index to reflect microcirculation, which is different from the traditional evaluation method, and has multiple advantages, such as simple operation, strong repeatability, high specificity and so on.In recent years, the research on the correlation of IMR is advancing by leaps and bounds.This paper reviews the current research progress on the correlation of IMR in STEMI.
