ASSESSMENT OF MYOCARDIAL CHARACTERISTICS DEFORMATION BY THE TWO-DIMENSIONAL STRAIN TECHNOLOGY IN PATIENTS WITH ACUTE MYOCARDIAL INFARCTION WITH ST-SEGMENT ELEVATION

Oleynikov Valentin Elivich, Doctor of medical sciences, professor, head of sub-department of therapeutics, Medical Institute, Penza State University (40 Krasnaya street, Penza, Russia), oleynikoff@sura.ru
Romanovskaya Elena Mikhaylovna, Assistant, sub-department of therapeutics, Medical Institute, Penza State University (40 Krasnaya street, Penza, Russia), Lensins@rambler.ru
Galimskaya Vera Aleksandrovna, Candidate of medical sciences, associate professor, sub-department of therapeutics, Medical Institute, Penza State University (40 Krasnaya street, Penza, Russia), Vera-budanova@mail.ru
Tomashevskaya Yuliya Anatol'evna, Candidate of medical sciences, associate professor, sub-department of therapeutics, Medical Institute, Penza State University (40 Krasnaya street, Penza, Russia), t.julia74@mail.ru

616.127-005.8; 616.12-008.1-072.7

Background. The aim of the article is to determine the deformation characteris-tics using the method of two-dimensional strain in patients with acute myocardial infarction with ST-segment elevation (STEMI) after reperfusion therapy.
Materials and methods. 16 patients with STEMI (group 1) and 20 healthy volunteers in the 2nd control group participated in the study. According to the assessment of revascularization effectiveness based on the TIMI scale the patients with STEMI were divided as follows: group 1 included patients with good angiographic results (TIMI 2–3), the 2nd group – with unsatisfactory effect of reperfusion (TIMI 0–1).
Results. The parameters of the universial myocardial deformation in patients with TIMI 2-3 were higher than the similar data of patients with TIMI 0-1, where the longitudinal and circular deformation of the left ventricle (51 and 36 %) were the most affected. In patients with good angiographic results after stenting there was observed an increase in universal longitudinal and radial deformation rates, in case of unsatisfactory – only radial one increased.
Conclusion. The technique of two-dimensional strain is an affordable and promising ultrasonic method that significantly extends the capabilities of non-invasive dynamic monitoring of the processes of pathological LV remodeling in patients with acute myocardial infarction. Using this technique the authors revealed a high dependence of myocardial deformation characteristics on the reperfusion therapy effectiveness in patients with STEMI.

acute myocardial infarction with ST-segment elevation (STEMI), reperfusion therapy, two-dimensional strain, longitudinal strain, circumferencial strain, radial strain, phenomenon of non-reflow.

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