title: Melody® pulmonary valve implantation in two teenage patients with congenitally corrected transposition of the great arteries status after Senning atrial switch operation.
abstract: The Melody® transcatheter pulmonary valve system was developed for placement within right ventricle-to-pulmonary artery conduits in patients with CHD for treatment of stenosis or regurgitation, providing an alternative to open-heart surgery. Abnormal systemic venous connections altering the catheter course to the right ventricle-to-pulmonary artery conduit may present a challenge to Melody® valve implantation. We present two such cases, in which the Melody® valve was successfully implanted in teenage patients with congenitally corrected transposition of the great arteries after Senning atrial switch operation. Despite the abnormal catheter course, the right ventricle-to-pulmonary artery was approachable via the right femoral vein allowing for deployment of the Melody® valve in the appropriate position. This suggests that systemic vein-to-left atrium baffles are not prohibitive of Melody® valve implantation. This is an important implication considering the substantial population of ageing patients with CHD who have undergone atrial switch. Melody® valve implantation can be considered as a viable option for treatment of these patients if they develop right ventricle-to-pulmonary artery conduit failure.
authors.affiliation: Division of Cardiology,Medical College of Wisconsin,Children's Hospital of Wisconsin,Milwaukee,Wisconsin,United States of America.
authors.forename: Rodrigo
authors.initials: R
authors.lastname: Rios
authors.affiliation: Division of Cardiology,Medical College of Wisconsin,Children's Hospital of Wisconsin,Milwaukee,Wisconsin,United States of America.
authors.forename: Susan R
authors.initials: SR
authors.lastname: Foerster
authors.affiliation: Division of Cardiology,Medical College of Wisconsin,Children's Hospital of Wisconsin,Milwaukee,Wisconsin,United States of America.
authors.forename: Todd M
authors.initials: TM
authors.lastname: Gudausky
mesh_terms: D000015:Abnormalities, Multiple; D000293:Adolescent; D000792:Angiography; D000069278:Arterial Switch Operation / Q000379:methods*; D005260:Female; D005500:Follow-Up Studies; D019918:Heart Valve Prosthesis Implantation / Q000379:methods*; D006801:Humans; D019028:Magnetic Resonance Imaging, Cine; D008297:Male; D010690:Phlebography; D011664:Pulmonary Valve / Q000000981:diagnostic imaging / Q000601:surgery*; D011666:Pulmonary Valve Stenosis / Q000151:congenital / Q000175:diagnosis / Q000601:surgery*; D014188:Transposition of Great Vessels / Q000601:surgery*
keywords: CHD; pulmonary valve intervention; transcatheter valve implantation