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Right ventricular outflow tract stenting

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https://www.readbyqxmd.com/read/28895301/early-leaflet-thrombosis-complicating-transcatheter-implantation-of-a-sapien-3-valve-in-a-native-right-ventricular-outflow-tract
#1
Mounir Riahi, Philipp Blanke, John Webb, Ronald G Carere
A 59-year-old female with Tetralogy of Fallot had a previous complete repair with RVOT patch enlargement. She developed subsequent severe symptomatic (NYHA III) pulmonary regurgitation with severe RV dilatation. She had a concomitant interstitial lung disease secondary to hypersensitivity pneumonitis that precluded her from cardiac surgery. After preprocedural assessment using computed tomography, echocardiography and invasive angiography we decided to implant a 29 mm Edwards Sapien 3 valve without pre-stenting...
September 12, 2017: Catheterization and Cardiovascular Interventions
https://www.readbyqxmd.com/read/28895283/right-ventricle-outflow-tract-prestenting-in-vitro-testing-of-rigidity-and-corrosion-properties
#2
Bjorn Cools, Stephen Brown, Martine Wevers, Jan Van Humbeeck, Derize Boshoff, Cis Verdonckt, Marc Gewillig
BACKGROUND: The aim of this study was to assess the resistance to compression (stiffness) of frequently used stents for right ventricular outflow tract prestenting. In addition, to assess the corrosion potential when different types of stent alloys come into contact with each other. METHOD: Different stents were tested in vitro in various combinations at specialized metallurgic laboratories. A bench compression test was used to assess resistance to compression of singular and joined combinations of stents...
September 12, 2017: Catheterization and Cardiovascular Interventions
https://www.readbyqxmd.com/read/28882285/stenting-of-the-right-ventricular-outflow-tract-promotes-better-pulmonary-arterial-growth-compared-with-modified-blalock-taussig-shunt-palliation-in-tetralogy-of-fallot-type-lesions
#3
Daniel Quandt, Bharat Ramchandani, John Stickley, Chetan Mehta, Vinay Bhole, David J Barron, Oliver Stumper
OBJECTIVES: This study sought to compare pulmonary arterial (PA) growth during palliation after right ventricular outflow tract (RVOT) stenting versus modified Blalock-Taussig shunt (mBTS) in patients coming forward for complete repair of tetralogy of Fallot-type lesions. BACKGROUND: RVOT stenting is a recent alternative to mBTS in the initial palliation of selected patients with Fallot-type lesions. METHODS: This was a retrospective, single-center study of nonrandomized, consecutive palliated Fallot patients over a 10-year period...
September 11, 2017: JACC. Cardiovascular Interventions
https://www.readbyqxmd.com/read/28857726/initial-assessment-of-a-novel-delivery-system-nudel%C3%A2-%C3%A2-for-the-covered-cheatham-platinum-stent
#4
Gareth J Morgan, Damien Kenny, Christopher Duke, Kevin P Walsh, Shakeel A Qureshi
Aims We sought to evaluate the first-in-man use of a new system for implantation of covered stents in patients with complex structural and CHD. Methods and results Retrospective data were collected of the first 13 NuDEL™ delivery systems used in patients. The NuDEL™ comprises a covered Cheatham-Platinum stent mounted on a balloon-in-balloon and pre-loaded in a long delivery sheath. Data were collected from three centres in the United Kingdom and Ireland. A total of 13 covered stents were delivered via 12 NuDEL™ delivery systems in 12 patients...
October 2017: Cardiology in the Young
https://www.readbyqxmd.com/read/28851718/acute-and-midterm-outcomes-of-transcatheter-pulmonary-valve-replacement-for-treatment-of-dysfunctional-left-ventricular-outflow-tract-conduits-in-patients-with-aortopulmonary-transposition-and-a-systemic-right-ventricle
#5
Wendy Whiteside, Justin T Tretter, Jamil Aboulhosn, Osamah Aldoss, Aimee K Armstrong, Martin L Bocks, Matthew J Gillespie, Thomas K Jones, Mary Hunt Martin, Jeffrey J Meadows, Christina M Metcalf, Mariel E Turner, Thomas Zellers, Bryan H Goldstein
BACKGROUND: Transcatheter pulmonary valve replacement (TPVR) is an established therapy for dysfunctional right ventricular (RV) outflow tract conduits. TPVR in patients with congenitally corrected transposition of the great arteries, subpulmonary left ventricle, and left ventricular outflow tract (LVOT) conduit dysfunction has not been studied. Unique anatomic and physiological aspects of this population may contribute to distinct risks and outcomes. METHODS AND RESULTS: Across 10 US centers, 27 patients with a dysfunctional LVOT conduit were evaluated in the catheterization laboratory between December 2008 and August 2015 with the intent to perform TPVR...
September 2017: Circulation. Cardiovascular Interventions
https://www.readbyqxmd.com/read/28814489/right-ventricular-outflow-tract-stent-versus-bt-shunt-palliation-in-tetralogy-of-fallot
#6
Daniel Quandt, Bharat Ramchandani, Gemma Penford, John Stickley, Vinay Bhole, Chetan Mehta, Timothy Jones, David James Barron, Oliver Stumper
OBJECTIVE: This study sets out to compare morbidity, mortality and reintervention rates after stenting of the right ventricular outflow tract (RVOT) versus modified Blalock-Taussig shunt (mBTS) for palliation in patients with tetralogy of Fallot (ToF)-type lesions. METHODS: Retrospective case review study evaluating 101 patients (64 males) with ToF lesions who underwent palliation with either mBTS (n=41) or RVOT stent (n=60) to augment pulmonary blood flow over a 10-year period...
August 16, 2017: Heart: Official Journal of the British Cardiac Society
https://www.readbyqxmd.com/read/28712577/bacterial-adherence-to-graft-tissues-in-static-and-flow-conditions
#7
Tiago Rafael Veloso, Jorien Claes, Soetkin Van Kerckhoven, Bartosz Ditkowski, Luis G Hurtado-Aguilar, Stefan Jockenhoevel, Petra Mela, Ramadan Jashari, Marc Gewillig, Marc F Hoylaerts, Bart Meyns, Ruth Heying
BACKGROUND: Various conduits and stent-mounted valves are used as pulmonary valve graft tissues for right ventricular outflow tract reconstruction with good hemodynamic results. Valve replacement carries an increased risk of infective endocarditis (IE). Recent observations have increased awareness of the risk of IE after transcatheter implantation of a stent-mounted bovine jugular vein valve. This study focused on the susceptibility of graft tissue surfaces to bacterial adherence as a potential risk factor for subsequent IE...
June 16, 2017: Journal of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/28667170/isolated-cardiac-sarcoidosis-masquerading-as-right-ventricular-outflow-tract-ventricular-tachycardia
#8
Auras R Atreya, Mitkumar Patel, Senthil K Sivalingam, Mathias L Stoenescu
A 67-year-old man with coronary artery disease (CAD) and left anterior descending artery (LAD) stent presented with symptomatic monomorphic ventricular tachycardia (VT) at a rate of 190 bpm requiring cardioversion. ECG showed left bundle branch block pattern and inferior axis, suggestive of a right ventricular outflow tract (RVOT) focus rather than left ventricular scar due to LAD territory myocardial infarction (MI). Echocardiography showed normal wall motion. Angiography revealed a patent mid-LAD stent. Cardiac MRI with delayed postcontrast sequence revealed several regions of hyperenhancement abnormality within the basal portion of the interventricular septum...
June 30, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28666664/young-infants-with-severe-tetralogy-of-fallot-early-primary-surgery-versus-transcatheter-palliation
#9
Travis J Wilder, Glen S Van Arsdell, Lee Benson, Eric Pham-Hung, Michael Gritti, Alexandra Page, Christopher A Caldarone, Edward J Hickey
BACKGROUND: Infants with severe tetralogy of Fallot may undergo (1) early primary surgical repair (EARLY) or (2) early transcatheter palliation (CATH) before delayed surgical repair. We compared these strategies with (3) elective single-stage tetralogy of Fallot repair (IDEAL). METHODS: From 2000 to 2012, 453 children underwent tetralogy of Fallot repair (excluding systemic-pulmonary shunts), including 383 in the IDEAL (75%), 42 in the EARLY (9%), and 28 in the CATH (6%) groups...
May 19, 2017: Journal of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/28566833/stent-migration-after-right-ventricular-outflow-tract-stenting-in-the-severe-cyanotic-tetralogy-of-fallot-case
#10
Tamaki Hayashi, Saleem Akhtar, Mazeni Alwi
We report our experience with a stent migration after right ventricle outflow tract stenting and converted to patent ductus arteriosus stenting in Tetralogy of Fallot (TOF) with severe infundibular stenosis. Finally, the patient achieved to TOF repair, and the migrated stent was removed without any complication.
May 2017: Annals of Pediatric Cardiology
https://www.readbyqxmd.com/read/28549918/percutaneous-pulmonary-melody-%C3%A2-valve-implantation-in-small-conduits
#11
Myriam Bensemlali, Sophie Malekzadeh-Milani, Meriem Mostefa-Kara, Damien Bonnet, Younes Boudjemline
BACKGROUND: The Melody(®) pulmonary valve has received approval for the treatment of dysfunctional right ventricular (RV) outflow tract conduits ≥16mm. AIMS: To investigate technical and clinical outcomes in patients who underwent percutaneous pulmonary valve implantation (PPVI) in conduits ≤16mm. METHODS: Eleven patients were enrolled retrospectively between 2000 and 2015 in a cardiac referral centre. RESULTS: The PPVI indications were obstruction (n=5); regurgitation (n=1); and mixed lesions (n=5)...
May 23, 2017: Archives of Cardiovascular Diseases
https://www.readbyqxmd.com/read/28549630/-the-successful-saga-of-percutaneous-pulmonary-valvulation-in-congenital-heart-diseases
#12
REVIEW
Sophie Malekzadeh-Milani, Younes Boudjemline
With new surgical techniques, more and more complex congenital heart defects are treated requiring sometimes right ventricle to pulmonary artery conduit implantation. In order to extend RV to PA conduit lifespan, 15 years ago a valved stent was developed. The implantation technique was progressively standardized to decrease risks of procedural complications. Medium and long-term hemodynamic results of the stent were so good that indications were broadened to native or complex right ventricular outflow tracts...
June 2017: La Presse Médicale
https://www.readbyqxmd.com/read/28296032/right-ventricular-remodelling-after-transcatheter-pulmonary-valve-implantation
#13
Efstathios D Pagourelias, Ana M Daraban, Razvan O Mada, Jürgen Duchenne, Oana Mirea, Bjorn Cools, Ruth Heying, Derize Boshoff, Jan Bogaert, Werner Budts, Marc Gewillig, Jens-Uwe Voigt
OBJECTIVES: To define the optimal timing for percutaneous pulmonary valve implantation (PPVI) in patients with severe pulmonary regurgitation (PR) after Fallot's Tetralogy (ToF) correction. BACKGROUND: PPVI among the aforementioned patients is mainly driven by symptoms or by severe right ventricular (RV) dilatation/dysfunction. The optimal timing for PPVI is still disputed. METHODS: Twenty patients [age 13.9 ± 9.2 years, (range 4.3-44...
March 15, 2017: Catheterization and Cardiovascular Interventions
https://www.readbyqxmd.com/read/28248409/immediate-and-long-term-outcomes-of-percutaneous-transcatheter-pulmonary-valve-implantation
#14
Roland Fiszer, Paweł Dryżek, Małgorzata Szkutnik, Sebastian Góreczny, Alexandra Krawczuk, Jadwiga Moll, Tomasz Moszura, Szymon Pawlak, Jacek Białkowski
BACKGROUND: Transcutaneous pulmonary valve replacement (TPVR) has become an alternative to heart surgery for patients after previous right ventricular outflow tract (RVOT) or pulmonary artery (PA) surgical interventions. The objective was to present immediate and long-term outcomes of transcutaneous pulmonary valve replacement. METHODS: Between 06/2009 and 06/2016, 46 patients underwent TPVR. Initial diagnoses included tetralogy of Fallot, common arterial trunk, transposition of great arteries post Rastelli correction, left ventricle outflow obstruction after Ross operation, pulmonary atresia, and isolated dysplastic pulmonary valve stenosis...
March 1, 2017: Cardiology Journal
https://www.readbyqxmd.com/read/28163423/mechanism-of-valve-failure-and-efficacy-of-reintervention-through-catheterization-in-patients-with-bioprosthetic-valves-in-the-pulmonary-position
#15
Ryan Callahan, Lisa Bergersen, Christopher W Baird, Diego Porras, Jesse J Esch, James E Lock, Audrey C Marshall
BACKGROUND: Surgical and transcatheter bioprosthetic valves (BPVs) in the pulmonary position in patients with congenital heart disease may ultimately fail and undergo transcatheter reintervention. Angiographic assessment of the mechanism of BPV failure has not been previously described. AIMS: The aim of this study was to determine the mode of BPV failure (stenosis/regurgitation) requiring transcatheter reintervention and to describe the angiographic characteristics of the failed BPVs and report the types and efficacy of reinterventions...
January 2017: Annals of Pediatric Cardiology
https://www.readbyqxmd.com/read/28163422/transcatheter-pulmonary-valve-perforation-using-chronic-total-occlusion-wire-in-pulmonary-atresia-with-intact-ventricular-septum
#16
Shweta Bakhru, Shilpa Marathe, Manish Saxena, Sudeep Verma, Rajan Saileela, Tapan K Dash, Nageswara Rao Koneti
BACKGROUND: Perforation of pulmonary valve using radiofrequency ablation in pulmonary atresia with intact ventricular septum (PA IVS) is a treatment of choice. However, significant cost of the equipment limits its utility, especially in the developing economies. OBJECTIVE: To assess the feasibility, safety, and efficacy of perforation of pulmonary valve using chronic total occlusion (CTO) wires in patients with PA IVS as an alternative to radiofrequency ablation...
January 2017: Annals of Pediatric Cardiology
https://www.readbyqxmd.com/read/28145041/first-in-human-experience-of-a-new-self-expandable-percutaneous-pulmonary-valve-implantation-using-knitted-nitinol-wire-and-tri-leaflet-porcine-pericardial-valve-in-the-native-right-ventricular-outflow-tract
#17
Gi Beom Kim, Bo Sang Kwon, Hong Gook Lim
Balloon-expandable percutaneous pulmonary valve systems using the Melody and Edwards SAPIEN transcatheter heart valves have been increasingly used instead of surgically implantable pulmonary valves. However, limited patients with right ventricular outflow tract (RVOT) lesions are suitable candidates for percutaneous pulmonary valve implantation (PPVI) using these systems after surgical correction of tetralogy of Fallot. Therefore, larger self-expandable valved-stents are being developed for native RVOT lesions...
April 2017: Catheterization and Cardiovascular Interventions
https://www.readbyqxmd.com/read/28044989/surgical-mitral-valve-replacement-with-the-melody-valve-in-infants-and-children-the-italian-experience
#18
Alessandro Frigiola, Francesca Romana Pluchinotta, Antonio Saracino, Alessandro Giamberti, Carmelo Arcidiacono, Luciane Piazza, Matteo Reali, Gianfranco Butera, Alessandro Varrica, Mario Carminati
AIMS: Paediatric patients with mitral valve (MV) disease have limited options for prosthetic MV replacement. Based on long experience with the stented bovine jugular vein graft (Melody valve) in the right ventricular outflow tract, we aimed to test the use of the Melody valve as a surgical implant in the mitral position in a small group of infants with congenital mitral disease. METHODS AND RESULTS: Eight patients, aged from 3 months to 6.2 years, with congenital MV dysplasia underwent Melody valve implantation in the mitral position between March 2014 and October 2015...
April 20, 2017: EuroIntervention
https://www.readbyqxmd.com/read/27965299/right-ventricular-outflow-tract-stenting-the-ideal-palliative-option-in-the-management-of-high-risk-cyanotic-infants-with-tetralogy-of-fallot
#19
EDITORIAL
Andrew C Glatz
No abstract text is available yet for this article.
December 2016: Circulation. Cardiovascular Interventions
https://www.readbyqxmd.com/read/27965298/right-ventricular-outflow-tract-stenting-in-tetralogy-of-fallot-infants-with-risk-factors-for-early-primary-repair
#20
Juan Pablo Sandoval, Rajiv R Chaturvedi, Lee Benson, Gareth Morgan, Glen Van Arsdell, Osami Honjo, Christopher Caldarone, Kyong-Jin Lee
BACKGROUND: Tetralogy of Fallot with cyanosis requiring surgical repair in early infancy reflects poor anatomy and is associated with more clinical instability and longer hospitalization than those who can be electively repaired later. We bridged symptomatic infants with risk factors for early primary repair by right ventricular outflow tract stenting (stent). METHODS AND RESULTS: Four groups of tetralogy of Fallot with confluent central pulmonary arteries were studied: stent group (n=42), primary repair (aged <3 months) with pulmonary stenosis (early-PS group; n=44), primary repair (aged <3 months) with pulmonary atresia (early-PA group; n=49), and primary repair between 3 and 11 months of age (surg>3mo group; n=45)...
December 2016: Circulation. Cardiovascular Interventions
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