Related Experiment Video
Updated: May 5, 2026
Echocardiographic Evaluation of Atrial Communications before Transcatheter Closure
Published on: February 8, 2022
Application of the defect area in transcatheter closure of atrial septal defect
Jinyoung Song1, I-Seok Kang, Sung-A Chang
1Department of Pediatrics, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea.
Objectives:
It was our aim to evaluate whether the defect area plays a crucial role in successful device closure of atrial septal defects (ASDs).
Methods:
The long and short diameters of the defect were measured on en-face images. The defect area was then measured by planimetry. The device size compared to the defect length and defect area was analyzed in each group.
Results:
There were 22 patients in the circular group and 45 patients in the noncircular group. The defect area did not differ between the groups (201.6 ± 107.1 vs. 245.6 ± 127.6 mm(2)). Although the length between the device size and the long diameter differed between the groups (3.4 ± 2.0 vs. 0.8 ± 3.7 mm; p = 0.003), there was no difference in the ratio of the device area compared to the defect area, which was constant even in the noncircular defect (1.73 ± 0.41 vs. 1.72 ± 0.53 mm(2); p = 0.947). The device size was positively correlated with the defect area (p < 0.01).
Conclusion:
The defect area measured by planimetry on en-face images might be useful in selecting the device size for transcatheter closure of ASDs.
