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Right ventricular outflow tract stenting

Ewelina Kwaśniak, Ireneusz Haponiuk, Maciej Chojnicki, Radosław Jaworski, Aneta Szofer-Sendrowska, Mariusz Steffens
No abstract text is available yet for this article.
2016: Postępy W Kardiologii Interwencyjnej, Advances in Interventional Cardiology
Christian Buchholz, Andreas Mayr, Ariawan Purbojo, Martin Glöckler, Okan Toka, Robert A Cesnjevar, André Rüffer
OBJECTIVES: This retrospective single-centre review presents mid- and long-term results of stented biological valves (SBVs) in the pulmonary position. METHODS: Fifty-two SBVs (17 Carpentier-Edwards Supraannular; 13 Carpentier-Edwards Perimount; 12 St. Jude Medical Trifecta; 4 Sorin Mitroflow; 4 Sorin Soprano; 2 Sorin More) were implanted between 2000 and 2015. The median valve size, patient age and weight were 23 mm (range 19-27), 22.8 years (range 5-77) and 62...
August 22, 2016: Interactive Cardiovascular and Thoracic Surgery
Joanna Nozynska, Brigitte Stiller, Jochen Grohmann
Reconstructing the right ventricular outflow tract and pulmonary valve via a bovine-derived valve conduit such as Matrix-P-Xenograft is a common surgical repair technique for pulmonary atresia and ventricular septal defect. After conduit degeneration due to calcification or aneurysmal dilatation, percutaneous transvenous stenting of the right ventricular outflow tract followed by pulmonary valve implantation has become the standard interventional treatment. Applied to stenotic conduits, the method is considered safe and effective...
June 1, 2016: Catheterization and Cardiovascular Interventions
Eimear McGovern, Conall T Morgan, Paul Oslizlok, Damien Kenny, Kevin P Walsh, Colin J McMahon
We retrospectively reviewed all the children with right ventricular outflow tract obstruction, hypoplastic pulmonary annulus, and pulmonary arteries who underwent stenting of the right ventricular outflow tract for hypercyanotic spells at our institution between January, 2008 and December, 2013; nine patients who underwent cardiac catheterisation at a median age of 39 days (range 12-60 days) and weight of 3.6 kg (range 2.6-4.3 kg) were identified. The median number of stents placed was one stent (range 1-4)...
October 2016: Cardiology in the Young
J Bugeja, V Grech, J V DeGiovanni
No abstract text is available yet for this article.
July 2015: Images in Paediatric Cardiology
Alistair B M Phillips, Phillip Nevin, Avni Shah, Vincent Olshove, Ruchira Garg, Evan M Zahn
BACKGROUND: Transcatheter pulmonary valve replacement (tPVR) is an accepted therapy for treatment of dysfunctional right ventricular outflow tract (RVOT) conduits. At present, the majority of Fallot patients who undergo transannular patch (TAP) repair are not candidates for tPVR due to the large irregular nature of their RVOT. Herein, we describe a novel approach to assessing the RVOT in this group, which may then be used to design, test, and carry out hybrid RVOT modification and transcatheter valve implantation in this population...
February 15, 2016: Catheterization and Cardiovascular Interventions
Ralf J Holzer, Ziyad M Hijazi
BACKGROUND: The number of patients undergoing transcatheter pulmonary valve replacement has been steadily increasing, resulting in many research projects focusing on this patient population. This has highlighted the need to summarize the currently available data. METHODS: A review of the literature was conducted and the results summarized. RESULTS: At present, the two commercially available valves approved for transcatheter pulmonary valve replacement include the Edwards Sapien valve and the Medtronic Melody valve...
January 1, 2016: Catheterization and Cardiovascular Interventions
Omar K Khalique, Nadira B Hamid, Susheel K Kodali, Tamim M Nazif, Leo Marcoff, Jean-Michel Paradis, Mathew R Williams, Torsten P Vahl, Isaac George, Martin B Leon, Rebecca T Hahn
BACKGROUND: Echocardiographic calculation of effective orifice area (EOA) after transcatheter aortic valve replacement is integral to the assessment of transcatheter heart valve (THV) function. The aim of this study was to determine the most accurate method for calculating the EOA of the Edwards SAPIEN and SAPIEN XT THVs. METHODS: One hundred intraprocedural transesophageal echocardiograms were analyzed. To calculate the post-transcatheter aortic valve replacement left ventricular outflow tract (LVOT) stroke volume (SV), four diameters were measured using two-dimensional echocardiography: (1) baseline LVOT diameter (LVOTd_PRE), (2) postimplantation LVOT diameter, (3) native aortic annular diameter, and (4) THV in-stent diameter...
November 2015: Journal of the American Society of Echocardiography
Matthew J Gillespie, Doff B McElhinney, Jacqueline Kreutzer, William E Hellenbrand, Howaida El-Said, Peter Ewert, John F Rhodes, Lars Søndergaard, Thomas K Jones
BACKGROUND: Right ventricular outflow tract (RVOT) conduit dysfunction is a limitation of the Ross procedure. Transcatheter pulmonary valve replacement (TPVR) could alter the impact of conduit dysfunction and the risk-benefit balance for the Ross procedure. METHODS: Retrospective review of databases from 3 prospective Melody TPV (Medtronic Inc, Minneapolis, MN) trials. RESULTS: Among 358 patients who were catheterized with the intent to implant a Melody TPV for RVOT conduit stenosis or regurgitation (PR) as part of 3 prospective multicenter studies, 67 (19%) had a prior Ross procedure...
September 2015: Annals of Thoracic Surgery
Brieann Muller, Hani Ghawi, Mary G Heitschmidt, Louis Fogg, John Hibbeln, Ziyad M Hijazi, Damien Kenny
OBJECTIVE: Distortion of transcatheter heart valve (THV) stent shape and morphology has been shown to impact on THV function. This study sought to evaluate the relationship between geometrical CT follow-up data and consequent valve function in patients undergoing transcatheter pulmonary valve replacement with the Edwards SAPIEN THV. METHODS: All patients were enrolled in the COMPASSION trial. Multidetector computed tomography (MDCT) was performed as part of the study protocol at 6 months and yearly thereafter following valve implantation...
February 15, 2016: Catheterization and Cardiovascular Interventions
Juan-Miguel Gil-Jaurena, José-Luis Zunzunegui, Ramón Pérez-Caballero, Ana Pita, María-Teresa González-López, Fernando Ballesteros, Alejandro Rodríguez, Constancio Medrano
Complex cases undergo step surgical and percutaneous procedures, including stent deployment. Concerns arise on stent removal at latest surgery. Our initial experience is presented. Forty-six stents in 35 patients were partially or totally removed at surgery. Univentricular heart was diagnosed in 20 patients. Stents were previously deployed in: ductus (6), right ventricle outflow tract (12), atrial septal defect (4), right pulmonary artery (4), left pulmonary artery (16), inferior vena cava (2), superior vena cava (1) and ascending aorta (1)...
December 2015: Pediatric Cardiology
Worakan Promphan, Pimpak Prachasilchai, Suvipaporn Siripornpitak, Shakeel A Qureshi, Thanarat Layangool
BACKGROUND: At present, the exclusion for percutaneous pulmonary valve implantation for free pulmonary regurgitation after tetralogy of Fallot repair includes an unfavourably large right ventricular outflow tract. OBJECTIVE: To report feasibility and early experience with a recently developed transcatheter heart valve, Venus P-valveTM, implanted in six patients with severe pulmonary regurgitation with large right ventricular outflow tracts. Patients There were two female patients and four male patients...
April 2016: Cardiology in the Young
Elżbieta Katarzyna Biernacka, Witold Rużyłło, Marcin Demkow, Mirosław Kowalski, Mateusz Śpiewak, Walerian Piotrowski, Mariusz Kuśmierczyk, Sławomir Banaś, Jacek Różanski, Piotr Hoffman
OBJECTIVE: The aim of this study was to determine early and long-term results after transcatheter pulmonary valve implantation (TPVI) performed with the use of Medtronic Melody and Edwards Sapien valves in patients with full conduit or patched right ventricular outflow tract (RVOT) dysfunction. METHODS AND RESULTS: The study comprised 40 consecutive patients (full conduit, n = 25; RVOT patch, n = 15) who underwent TPVI between December 2008 and April 2012. TPVI was successfully performed in 37 patients (92...
June 2015: Journal of Invasive Cardiology
Nabil Hussein, Sombul Qamar, Qamar Abid
Aspergillus infections such as Aspergillus endocarditis were once relatively rare occurrences, however, due to the increased use of intracardiac devices, the incidence has grown. With mortality rates close to 100%, in medically treated cases, it is paramount that early diagnosis and treatment are performed. An immunocompetent aviculturist presented 8 months post aortic root replacement for severe aortic regurgitation with a composite graft, with central crushing chest pain. Investigations confirmed ST elevation inferior myocardial infarction due to stenosis of the origin of the right coronary artery, which was stented...
2015: BMJ Case Reports
Abraham Rothman, Alvaro Galindo, William N Evans
We describe a 29 mm Sapien XT valve implantation in a 10-year-old girl with repaired Tetralogy of Fallot, severe pulmonary regurgitation, and right ventricular dilatation, using the NovaFlex+ delivery system and the expandable introducer eSheath, without pre-stenting of the right ventricular outflow tract.
November 15, 2015: Catheterization and Cardiovascular Interventions
Harald Bertram, Mathias Emmel, Peter Ewert, Jochen Grohmann, Nikolaus A Haas, Christian Jux, Hans Gerd Kehl, Erwin Kitzmüller, Oliver Kretschmar, Götz Müller, Walter Wiebe
OBJECTIVE: To assess feasibility, safety and effectiveness of right ventricular outflow tract (RVOT) stenting in symptomatic young infants. METHODS: Multicentre evaluation of 35 patients intended to undergo RVOT stenting in 11 pediatric cardiac centres from 2009 to August 2011. RESULTS: Median age and weight at the time of first stent implantation were 8 weeks and 3.3 kg, with 40% of patients <3 kg. A total of 19 patients had suffered from hypoxemic spells, 8 patients were ventilated, 6 on inotropic support and 5 on prostaglandin infusion...
June 2015: Journal of Interventional Cardiology
John P Cheatham, William E Hellenbrand, Evan M Zahn, Thomas K Jones, Darren P Berman, Julie A Vincent, Doff B McElhinney
BACKGROUND: Studies of transcatheter pulmonary valve (TPV) replacement with the Melody valve have demonstrated good short-term outcomes, but there are no published long-term follow-up data. METHODS AND RESULTS: The US Investigational Device Exemption trial prospectively enrolled 171 pediatric and adult patients (median age, 19 years) with right ventricular outflow tract conduit obstruction or regurgitation. The 148 patients who received and were discharged with a TPV were followed up annually according to a standardized protocol...
June 2, 2015: Circulation
Paweł Dryżek, Tomasz Moszura, Sebastian Góreczny, Krzysztof W Michalak
This case describes a successful percutaneous stent implantation to critical stenosis of the right ventricle outflow tract in a female neonate with tetralogy of Fallot. At the time of the procedure she had poor development of the pulmonary arteries (McGoon and Nakata index 1.45 and 120, respectively). Stent implantation ensured an immediate increase in oxygen saturation level, and the physiological pulsating blood inflow caused good development of the pulmonary arteries during 12 months of follow up (McGoon 2...
2015: Postępy W Kardiologii Interwencyjnej, Advances in Interventional Cardiology
Bjorn Cools, Stephen C Brown, Ruth Heying, Katrijn Jansen, Derize E Boshoff, Werner Budts, Marc Gewillig
INTRODUCTION: Pulmonary regurgitation (PR) following surgery of the right ventricular outflow tract (RVOT) is not innocent and leads to significant right heart dysfunction over time. Recent studies have demonstrated that percutaneous valves can be implanted in conduit free outflow tracts with good outcomes. OBJECTIVES: To evaluate in patients with severe PR--anticipated to require future pulmonary valve replacement--the feasibility and safety of pre-stenting dilated non-stenotic patched conduit-free right ventricular outflow tracts before excessive dilation occurs, followed by percutaneous pulmonary valve implantation (PPVI)...
2015: International Journal of Cardiology
Akbar Molaei, Mahmud Meraji, Elaheh Malakan Rad
No abstract text is available yet for this article.
February 2014: Iranian Journal of Pediatrics
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