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Cardiac Structure, Function, and Clinical Manifestations in MINOCA — MINOCA  

Myocardial Infarction Clinical Trial

Official title:
Relationships of Cardiac Structure and Function With Clinical Manifestation of Acute Coronary Syndrome in Patients With Non-obstructed Coronary Arteries

Clinical Trial Summary

The purpose of this study is to improve the differential diagnosis and clinical outcomes of acute coronary syndrome with non-obstructive coronary arteries, to investigate the relationship between the structural and functional state of the heart and the clinical course of the disease.

Clinical Trial Description

Up to 14% of patients with acute myocardial infarction do not have obstructive changes in the coronary arteries according to invasive coronary angiography (defined as stenosis of > 50% by ESC Guidelines for the management of acute coronary syndromes in patients presenting without persistent ST-segment elevation, 2017). Elevation of highly sensitive Troponin I is a marker of damage to cardiomyocytes, but it is not an underlying mechanism of myocardial damage. Forty patients with acute coronary syndrome are planned to be enrolled in the non-randomized open controlled study. On admission, patients will receive the standard treatment for ACS with and without ST elevation. Within 24 hours, they will undergo diagnostic coronary angiography. In case of nonstenotic atherosclerosis of coronary arteries (normal / stenosis < 50%), patients are planned for cardiac contrast MRI, which will identify both ischemic and non-ischemic causes of acute coronary syndrome; MSCT will be performed to study the coronary arteries and the structure of atherosclerotic plaques; scintigraphy of the myocardium will be performed to characterize the perfusion defect. The frequencies of carrying the genetic alleles associated with the factors that predispose to thrombosis will be studied. Significance of these alleles in the development of thrombosis in acute myocardial infarction will be identified. The profiles of proinflammatory and anti-inflammatory response markers will be determined. Significance of these profiles in the development of acute myocardial infarction in patients with non-obstructive coronary atherosclerosis will be determined in comparison with control group. At one-year follow up, structural and functional characteristics of the heart will be studied again to assess dynamic changes in cardiac state. At one-year follow up, repeated studies will be perform to dynamically assess the structural and functional state of the heart. ;

Study Design

Related Conditions & MeSH terms

Clinical Trial Details
NCT number NCT03572023
Study type Interventional
Source Tomsk National Research Medical Center of the Russian Academy of Sciences
Contact
Status Completed
Phase N/A
Start date May 28, 2018
Completion date September 30, 2020
View Details
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