Open AccessPossibilities of magnetic resonance imaging in predicting of the critical reduction of left ventricle contractile function in patients with coronary artery disease after direct myocardial revascularization
Author(s) -
Н. А. Крюков,
А. В. Рыжков,
И. В. Сухова,
П. В. Ананьевская,
В. А. Фокин,
М Л Гордеев
Publication year - 2019
Publication title -
rossijskij kardiologičeskij žurnal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.141
H-Index - 14
eISSN - 2618-7620
pISSN - 1560-4071
DOI - 10.15829/1560-4071-2019-3-69-75
Subject(s) - medicine , cardiology , ventricle , ejection fraction , revascularization , coronary artery disease , diastole , magnetic resonance imaging , interventricular septum , cardiac magnetic resonance imaging , artery , radiology , myocardial infarction , heart failure , blood pressure
Aim. To identify the criteria for reversibility of structural changes in the myocardium of patients with coronary artery disease after revascularization based on analysis of data obtained using magnetic resonance imaging (MRI). Materials and methods. We studied the long-term results of surgical treatment of 53 patients with critical reduction of left ventricle contractile function (ejection fraction less than 30%) undergoing coronary bypass surgery. Before the operation, all patients underwent cardiac MRI and transthoracic echocardiography (EchoCG). Immediate and long-term results were assessed according to EchoCG. Results. The average observation period was 25,0±15,4 months. We found that significant predictors of improving of left ventricle contractile function are diastolic interventricular septum thickness (according to EchoCG and MRI) >10,5 mm (p 9,5 mm (p<0,05); degree of initially scarred myocardium according to MRI <33 points (p<0,05). Conclusion. Detection of a viable myocardium is a prognostically important sign of a possible improvement in the functional state of left ventricle after revascularization surgery in patients with coronary artery disease, complicated by a critical reduction of myocardium contractile function. Thus, this problem can be solved by contrasting MRI.