Images and Case Reports in Interventional Cardiology Bilateral Branch Pulmonary Artery Melody Valve Implantation for Treatment of Complex Right Ventricular Outflow Tract Dysfunction in a High-Risk Patient
نویسندگان
چکیده
Percutaneous pulmonary valve replacement is one of the most important advancements in the field of interventional cardiology in the past decade.1,2 However, currently available technologies are not applicable to patients with oversized right ventricular outflow tracts (RVOTs), especially when there is concomitant proximal branch pulmonary artery (PA) stenosis. This combination commonly is encountered in clinical practice. Our group has a longstanding interest in these complex patients, and we have recently published preclinical studies describing the feasibility and short-term effects of implanting 2 Melody valves—1 into each proximal branch PA—in an ovine model of postoperative pulmonary insufficiency and dilated RVOT.3 This report describes bilateral branch PA Melody valve implantation to treat complex RVOT dysfunction in a high-risk patient.
منابع مشابه
Images and Case Reports in Interventional Cardiology Branch Pulmonary Artery Jailing With a Bare Metal Stent to Anchor a Transcatheter Pulmonary Valve in Patients With Patched Large Right Ventricular Outflow Tract
Although transcatheter pulmonary valve replacement using the Melody valve (Medtronic Inc, Minneapolis, MN) has become widely adopted, it has only been formally studied in patients with right ventricle–to–pulmonary artery conduits 22 mm in diameter.1,2 Such patients compose only a small proportion of individuals with right ventricular outflow tract (RVOT) dysfunction, and there is interest and p...
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Percutaneous pulmonary valve implantation for conduit dysfunction in the right ventricular outflow tract is a safe and efficient treatment in selected patients. We report on a patient with stenosis and regurgitation of a homograft in the right ventricular outflow tract who developed complete atrioventricular block during percutaneous implantation of a Melody™ valve. This complete atrioventricul...
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Background—Transcatheter pulmonary valve placement is an emerging therapy for pulmonary regurgitation and right ventricular outflow tract obstruction in selected patients. The Melody valve was recently approved in the United States for placement in dysfunctional right ventricular outflow tract conduits. Methods and Results—From January 2007 to August 2009, 136 patients (median age, 19 years) un...
متن کاملMelody valve implantation into the branch pulmonary arteries for treatment of pulmonary insufficiency in an ovine model of right ventricular outflow tract dysfunction following tetralogy of Fallot repair.
BACKGROUND Transannular patch (TAP) repair of tetralogy of Fallot often results in significant right ventricular outflow tract (RVOT) dilation and distortion. We hypothesized that insertion of Melody valves into the proximal right and left branch pulmonary arteries (PAs) would reduce pulmonary regurgitation fraction (PRF) in an ovine model of pulmonary insufficiency and dilated RVOT. METHODS ...
متن کاملShort- and medium-term outcomes after transcatheter pulmonary valve placement in the expanded multicenter US melody valve trial.
BACKGROUND Transcatheter pulmonary valve placement is an emerging therapy for pulmonary regurgitation and right ventricular outflow tract obstruction in selected patients. The Melody valve was recently approved in the United States for placement in dysfunctional right ventricular outflow tract conduits. METHODS AND RESULTS From January 2007 to August 2009, 136 patients (median age, 19 years) ...
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