Journal of the Korean Pediatric Society 1995;38(2):232-239.
Published online February 15, 1995.
Relationship of Echocardiographic, Shunt Flow, and Angiographic Size to the Operation Diameter of the Atrial Septal Defect
Dae Kwon Hong, Hae Yong Lee, Baek Keun Lim
Department of Pediatrics, Yonsei University, Won ju College of Medicine, Won ju, Korea
2차공 심방중격 결손크기의 수술소견, 심초음파도, Qp/Qs 및 혈관조영술상 상호 비교
홍대권, 이해용, 임백근
연세대학교 원주의과대학 소아과학교실
This report is based on analysis of admissions to the department of pediatric at the Wonju Christian Hospital during the 3 3/4-year period from January 1989 to September 1993 with an Isolated ostium secundum ASD. Several methods of assessment of ASD size, namely, echographic, pulmonary-to-systemic flow ratio(Qp:Qs), and angiographic measures, were undertaken in a group of 37 patients, who were being evaluated for transcatheter closure of ASD; the results were compared with the operation diameter. The result of study was as follows : 1) The (Qp:Qs) ratio have no significant(p>0.01) correlation with the operation diameter(r= 0.342) 2) The angiographic size have a significant(p<0.01) correlation with the operation diameter (r=0.842) 3) The echo diameter has the best correlation with the operation diameter(r=0.935; p<0.01) The operation diameter can be estimated by the equation: 1.05¡¿echo diameter in millimeters+0.93mm. It is concluded that operation diameter of ASD can be estimated accurately by two-dimensional subcostal echo measurements, which in turn could be used for selection of device size for occlusion of the ASD.
Key Words: Atrial septal defect size, Echocardiography, Angiocardiography, Operation

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