Conclusion:
2-STE is feasible technique for analyzing newborn myocardial systolic function. The normal range of GLS in neonates is not much different than reported for the pediatric. There is a good positive correlation between the Left Ventricle EF by 2-D STE and EF by biplane method.
Key words: Infant myocardial strain, global longitudinal function, left ventricular function, echocardiography