TY - JOUR

T1 - Prognostic value of non-invasive left anterior coronary artery flow during exercise test in patients with previuos myocardial infarction

AU - Zagatina, A. V.

AU - Zhuravskaya, N. T.

N1 - Publisher Copyright: © 2016, Media Sphera Publishing Group. All rights reserved.

PY - 2016

Y1 - 2016

N2 - Aim - to define the prognostic value of coronary flow measured by Doppler-sonography during exercise tests in patients with previous myocardial infarction. Material and methods. The study included 297 patients. Outcomes were followed-up within 3 years. The communication with 18 patients was lost before study’s end. The final analysis included 279 (94%) patients. Results. 194 (69, 5%) persons had ischemic signs during stress echocardiography. ST -segment depression over 1 mm during exercise test was detected in two or more leads in 31% including 60 cases of positive (ischemic) result and 26 patients with negative (nonischemic) test. I n the main group mean diastolic flow velocity in median LAD segment prior to exercise was 36±16 cm/s, velocity during peak exercise - 60±28 cm/s. Mean difference of these data was 24±25 cm/s. Calculated coronary flow reserve in this artery was 1.7±0.7. Conclusion. T he value of LAD blood flow reserve as well as difference of velocities during peak and prior to exercise are associated with adverse outcomes within 3-year period after measurements (r≈ -0, 42; p<0.0000001; r≈ -0.40; p<0.0000001 respectively).

AB - Aim - to define the prognostic value of coronary flow measured by Doppler-sonography during exercise tests in patients with previous myocardial infarction. Material and methods. The study included 297 patients. Outcomes were followed-up within 3 years. The communication with 18 patients was lost before study’s end. The final analysis included 279 (94%) patients. Results. 194 (69, 5%) persons had ischemic signs during stress echocardiography. ST -segment depression over 1 mm during exercise test was detected in two or more leads in 31% including 60 cases of positive (ischemic) result and 26 patients with negative (nonischemic) test. I n the main group mean diastolic flow velocity in median LAD segment prior to exercise was 36±16 cm/s, velocity during peak exercise - 60±28 cm/s. Mean difference of these data was 24±25 cm/s. Calculated coronary flow reserve in this artery was 1.7±0.7. Conclusion. T he value of LAD blood flow reserve as well as difference of velocities during peak and prior to exercise are associated with adverse outcomes within 3-year period after measurements (r≈ -0, 42; p<0.0000001; r≈ -0.40; p<0.0000001 respectively).

KW - Coronary arteries imaging

KW - Coronary flow reserve

KW - Prognosis of stress-echocardiography

KW - Stress-echocardiography

KW - Stress-echocardiography with exercise

UR - http://www.scopus.com/inward/record.url?scp=85116048439&partnerID=8YFLogxK

U2 - 10.17116/kardio2016954-10

DO - 10.17116/kardio2016954-10

M3 - статья

AN - SCOPUS:85116048439

VL - 9

SP - 4

EP - 10

JO - КАРДИОЛОГИЯ И СЕРДЕЧНО-СОСУДИСТАЯ ХИРУРГИЯ

JF - КАРДИОЛОГИЯ И СЕРДЕЧНО-СОСУДИСТАЯ ХИРУРГИЯ

SN - 1996-6385

IS - 5

ER -