Evolution of Pediatric Cardiology over the Last 50 Years - Part II

Abstract

Check for updatesdevice. A methodical assessment of all three cohorts of the buttoned device suggested progressive decrease in complications rates, including unbuttoning and better implantation feasibility while preserving the effective occlusion rates with consecutive re-designed versions of the buttoned device [17,18,23]. The author's experience with Amplatzer Septal Occluder (ASO) was then reviewed with the conclusion that ASD occlusion with ASO is feasible, safe and effective in most types of ostium secundum ASD cases with occasional complications [9,10,24]. Initially, the ASO device characteristics were described followed by presentation of indications for device closure, the technique of device implantation, and results (Figure 4).The author and his associates performed the closure of more than 100 ostium secundum ASDs with the ASO as of 2011. The initial series of patients was presented in a poster format [24]. Sixty-five patients were taken to the catheterization laboratory with the intent to occlude their ASDs with the ASO during 2003 to 2011. Devices were not implanted in 4 (6%) patients because of flail or inadequate septal rims. In the remaining 61 patients, transcatheter occlusions were performed with the device. The ages of the patients varied between 3.1 and 17 years (mean 7.9 years). The weights of the patients ranged between 11.8 and 69 kg with a mean of 29.6 kg. Twenty-four were boys and 42 were girls. The Qp: Qs was 0.9 to 4.5 with a mean of 1.8. The ASD diameter measured by TEE varied between 5.6 and 29.5 mm with a mean of 14 mm. The ASD diameter measured by