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Value of Two‐Dimensional Strain Imaging in Prediction of Myocardial Function Recovery after Percutaneous Revascularization of Infarct‐Related Artery
Author(s) -
Shehata Mohamed
Publication year - 2015
Publication title -
echocardiography
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.404
H-Index - 62
eISSN - 1540-8175
pISSN - 0742-2822
DOI - 10.1111/echo.12704
Subject(s) - conventional pci , cardiology , ejection fraction , medicine , percutaneous coronary intervention , revascularization , myocardial infarction , coronary artery disease , heart failure
Background Speckle tracking is integrated into echocardiographic systems for evaluation of left ventricular ( LV ) function by means of automated function imaging ( AFI ). This study aimed at evaluating role of AFI ‐based strain in predicting postpercutaneous coronary intervention ( PCI ) LV function recovery. Methods Fifty patients with anterior wall myocardial infarction and impaired LV ejection fraction ( LVEF ) were prospectively enrolled. All patients showed positive viability results concerning left anterior descending ( LAD ) artery territory using low‐dose dobutamine stress echocardiography ( LDSE ). All patients underwent strain imaging using AFI (before and after PCI ). Result Mean age of the study population was 56.2 ± 5.4 years, 34 (68%) being males. 24 (48%) patients showed post‐ PCI LV function recovery after 4 months. They showed higher pre‐ PCI LVEF and AFI ‐based strain values. Logistic regression analysis presented baseline LVEF as an independent predictor of LV function recovery (Odds ratio = 0.7026, 95% CI : 0.54–0.93). A pre‐ PCI AFI strain value of −4.5% (sensitivity: 84% and specificity: 75%) for LAD territory and −9.5% (sensitivity and specificity of 50%) for global LV predicted LV function recovery. Conclusion Assessment of global and territorial LV strains using AFI ; is of added value upon viability assessment using LDSE . Higher baseline LVEF and strain values are associated with post‐ PCI LV function recovery.