Retrospective analysis of residual shunts after transcatheter closure of forty-five patients with atrial septal defects

doi:10.3760/cma.j.issn.1673-4777.2014.10.006

Abstract：Objective To retrospectively analyze the reasons and preventive measures for residual shunts after successful transcatheter closure of atrial septal defects.Methods Between August 2010 and August 2013,fifty-six patients with atrial septal defects who underwent transcatheter atrial septal defects closure were detected for residual shunt and retrospectively analyzed.Results A total of the 56 atrial septal defects,including 18 male and 38 female.46(82.1％)had single atrial septal defects and 10(17.9％) had multiple atrial septal defects.In patients with residual shunts,the patients with trace residual shunts were 32 (57.1％) ; small amounts of residual shunts were 22(39.3％);moderate amounts residual shunt were 2 (3.6％)and trace residual shunts were in the majority.The residual shunt that was detected after the transcatheter closure were 45 (80.3％) ; the residual shunt that was detected after 3 days were 9(16.1％) ;the residual shunt that was detected after 3-month was 1 (1.8％) ;the residual shunt that was detected after 6-month was 1 (1.8％).Conclusions The causes of residual shunt after the transcatheter closure of atrial septal defects do not accurately estimate the defect size,morphology,surrounding structures and degree of soft and hard edge.Three-dimensional echocardiography can more accurately identify atrial septal defects shape and provide more accurate indexto guide transcatheter device implantation than two dimensional echocardiography.