Comparison of the early cardiac electromechanical remodeling following transcatheter and surgical secundum atrial septal defect closure in adults Research Authors H. Shams-Eddin2 and Khaled M. El-maghraby2 Amr Mansour1 , Noha M. Gamal2*, M. Alaa Nady3 , Salwa R. Demitry2 Research Member Noha Mohammed Gamal Hashem