Publications by authors named "Carl Y Owada"

A 14-year-old male patient with a history of atypical Kawasaki disease at age 2 presents with triple vessel giant coronary aneurysms. Over the last several years, he began experiencing angina and dyspnea on exertion, which was a result of fully occluded right coronary and left circumflex arteries and 90% stenosis in the left anterior descending artery. He underwent off-pump coronary artery bypass using the left and right internal mammary arteries.

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Background: Prospective data on the medium-term safety and effectiveness of the AMPLATZER Septal Occluder in clinical practice are not available. The objective of this study was to prospectively evaluate the risk of hemodynamic compromise and obtain medium-term survival data on patients implanted with the AMPLATZER Septal Occluder for percutaneous closure of secundum atrial septal defects.

Methods And Results: Subjects were enrolled prospectively at 50 US sites and followed for 2 years.

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Objective: The aim of this study was to evaluate the safety and efficacy of the Amplatzer Vascular Plug-II used for the closure of perimembranous ventricular septal defects.

Background: There are no FDA-approved transcatheter devices for the closure of perimembranous ventricular septal defects. Several studies have reported on the use of various devices either off-label or under clinical trial protocols.

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Objectives: This study aimed to compare the efficacy and safety of the Nit-Occlud PDA device (PFM Medical, Cologne, Germany) to benchmarks designed as objective performance criteria (OPC).

Background: The Nit-Occlud PDA is a nitinol coil-type patent ductus arteriosus (PDA) occluder with a reverse cone configuration, which is implanted using a controlled delivery system.

Methods: Patients with <4-mm minimum diameter PDA were prospectively enrolled in the Pivotal and the Continuing Access Studies from 15 sites in the United States and were followed up for 12 months post-procedure.

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This study aimed to assess the technical aspects of atrial septal defect (ASD) closure using the Amplatzer septal occluder (ASO) and the Gore Helex septal occluder (GHSO) for infants weighing less than 8 kg and to determine the safety, effectiveness, and near-to-intermediate-term outcome of the closure. The Mid-Atlantic Group of Interventional Cardiology Registry of percutaneous, transcatheter ASD closure procedures was reviewed for this analysis. Patients from 10 hospitals in the United States were included.

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As the field of catheter-based therapies for congenital heart disease continues to expand, we lack the evidence-based data to make appropriate therapeutic decisions in the catheterization laboratory. A stumbling block to the determination of evidence-based therapies is our inability to simply and reliably share outcome data across multiple centers. We investigated whether a commonly used congenital heart disease catheterization database program (PedCath) could be used as an automatic catheterization data submission tool to a central database for outcome analysis.

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This report describes a new valvuloplasty procedure for the treatment of pulmonary valve stenosis (PVS) and large pulmonary valve annulus (PVA) diameters using a triple-balloon valvuloplasty (TBV) technique. We sought to demonstrate the safety and efficacy of this new technique. Percutaneous balloon pulmonary valvuloplasty (BPV) is the preferred treatment for PVS.

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We report our initial experience using real-time (live) three-dimensional (3D) transthoracic echocardiographic imaging under conscious sedation as a guide for transcatheter device closure of atrial septal defects. We believe this may be a feasible, safe, and effective alternative to the standard practice of transesophageal echocardiography, which requires general anesthesia and endotacheal intubation. Three-dimensional echocardiography may better define atrial septal anatomy and adjacent structures in planning for and performing percutaneous device closure of selected atrial septal defects.

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