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https://www.readbyqxmd.com/read/28214795/pre-implantation-balloon-aortic-valvuloplasty-and-clinical-outcomes-following-transcatheter-aortic-valve-implantation-a-propensity-score-analysis-of-the-uk-registry
#1
Glen P Martin, Matthew Sperrin, Rodrigo Bagur, Mark A de Belder, Iain Buchan, Mark Gunning, Peter F Ludman, Mamas A Mamas
BACKGROUND: Aortic valve predilation with balloon aortic valvuloplasty (BAV) is recommended before transcatheter aortic valve implantation (TAVI), despite limited data around the requirement of this preprocedural step and the potential risks of embolization. This study aimed to investigate the trends in practice and associations of BAV on short-term outcomes in the UK TAVI registry. METHODS AND RESULTS: Eleven clinical endpoints were investigated, including 30-day mortality, myocardial infarction, aortic regurgitation, valve dysfunction, and composite early safety...
February 18, 2017: Journal of the American Heart Association
https://www.readbyqxmd.com/read/28186475/programmable-shunt-valve-interactions-with-osseointegrated-hearing-devices
#2
Matthew J Pierson, Daniel Wehrmann, J Andrew Albers, Najib E El Tecle, Dary Costa, Samer K Elbabaa
OBJECTIVE Patients with ventriculoperitoneal (VP) shunts with programmable valves who would benefit from osseointegrated hearing devices (OIHDs) represent a unique population. The aim of this study was to evaluate the magnetic field strengths of 4 OIHDs and their interactions with 5 programmable VP shunt valves. METHODS Magnetic field strength was measured as a function of distance for each hearing device (Cochlear Baha 5, Cochlear Baha BP110, Oticon Ponto Plus Power, and Medtronic Sophono) in the following modes: inactive, active in quiet, and active in 60 decibels of background noise in the sound booth...
February 10, 2017: Journal of Neurosurgery. Pediatrics
https://www.readbyqxmd.com/read/28185817/outcomes-following-melody-transcatheter-pulmonary-valve-implantation-for-right-ventricular-outflow-tract-dysfunction-in-repaired-congenital-heart-disease-first-reported-australian-single-centre-experience
#3
Ryan Markham, Abhinay Challa, Stephen Kyranis, Mugur Nicolae, Dale Murdoch, Michael Savage, Theresa Malpas, Dorothy J Radford, Christian Hamilton-Craig, Darren L Walters
BACKGROUND: Transcatheter pulmonary valve implantation (TPVI) with the Melody® transcatheter pulmonary valve (TPV) has demonstrated good haemodynamic and clinical outcomes in the treatment of right ventricular outflow tract (RVOT) conduit dysfunction in patients with repaired congenital heart disease CHD. We present the first Australian single centre experience of patients treated with Melody TPV. METHOD: A prospective, observational registry was developed to monitor clinical and haemodynamic outcomes in patients with RVOT dysfunction treated with the Melody TPV (Medtronic Inc, Minneapolis, United States)...
January 24, 2017: Heart, Lung & Circulation
https://www.readbyqxmd.com/read/28183466/early-clinical-outcomes-after-transcatheter%C3%A2-aortic-valve-replacement-using-a-novel-self-expanding-bioprosthesis%C3%A2-in%C3%A2-patients-with-severe%C3%A2-aortic%C3%A2-stenosis-who-are-suboptimal%C3%A2-for%C3%A2-surgery-results-of-the-evolut-r-u-s-study
#4
Jeffrey J Popma, Michael J Reardon, Kamal Khabbaz, J Kevin Harrison, G Chad Hughes, Susheel Kodali, Isaac George, G Michael Deeb, Stan Chetcuti, Robert Kipperman, John Brown, Hongyan Qiao, James Slater, Mathew R Williams
OBJECTIVES: This study sought to evaluate this transcatheter aortic valve (TAV) bioprosthesis in patients who are poorly suitable for surgical aortic valve (AV) replacement. BACKGROUND: A novel self-expandable TAV bioprosthesis was designed to provide a low-profile delivery system, conformable annular sealing, and the ability to resheath and reposition during deployment. METHODS: The Evolut R U.S. study included 241 patients with severe aortic stenosis who were deemed to be at least high risk for surgery treated at 23 clinical sites in the United States...
February 13, 2017: JACC. Cardiovascular Interventions
https://www.readbyqxmd.com/read/28145874/comparative-matched-outcome-of-evolut-r-vs-corevalve-transcatheter-aortic-valve-implantation
#5
Uri Landes, Tamir Bental, Alon Barsheshet, Abid Assali, Hana Vaknin Assa, Amos Levi, Katia Orvin, Ran Kornowski
OBJECTIVES: The Evolut-R (Medtronic, Inc) is a transcatheter aortic valve implantation (TAVI) system that was built on the well-established foundation of Medtronic's CoreValve device platform. Although already in extensive clinical utilization, it is unknown if the Evolut-R improves TAVI outcomes. Herein, we compared TAVI outcomes of the Evolut-R and CoreValve devices. METHODS: A propensity score 1:1 matching was conducted on 358 Evolut-R patients (n = 75) and CoreValve patients (n = 283)...
February 2017: Journal of Invasive Cardiology
https://www.readbyqxmd.com/read/28139202/postoperative-analysis-of-the-mechanical-interaction-between-stent-and-host-tissue-in-patients-after-transcatheter-aortic-valve-implantation
#6
Raoul Hopf, Simon H Sündermann, Silvia Born, Carlos E Ruiz, Nicolas M Van Mieghem, Peter P de Jaegere, Francesco Maisano, Volkmar Falk, Edoardo Mazza
The analysis is based on a finite element procedure to extract the contact forces between an implanted Nitinol stent and the surrounding host tissue using postoperative CT images. The methodology was applied for patients (N=46) which have undergone a TAVI procedure with the Medtronic CoreValve Revalving System (MCRS) to obtain corresponding deformation and force maps. The postoperative CT data were recorded for each patient in both systolic and diastolic phase of the heart cycle. Scalar parameters were defined, which map deformed geometry and contact force field to mechanically relevant quantities: radial dilatation, radial shape distortion, non-convex points, mean force, a force deviation measure and a pressure equivalent...
December 30, 2016: Journal of Biomechanics
https://www.readbyqxmd.com/read/28131425/evaluation-of-hemodynamic-performance-of%C3%A2-aortic-valve-bioprostheses-in-a-model-of%C3%A2-oversizing
#7
John D Cleveland, Michael E Bowdish, Carol E Eberhardt, Wendy J Mack, James A Crabtree, Thomas A Vassiliades, Alan M Speir, Yogesh A Darekar, Amy E Hackmann, Vaughn A Starnes, Robbin G Cohen
BACKGROUND: The risk of patient-prosthesis mismatch drives most surgeons to select the largest bioprosthesis possible during aortic valve replacement, but interactions between the native aortic annulus and valve prosthesis remain poorly defined. We examined the hemodynamic and functional consequences of oversizing contemporary bioprostheses in an in vitro model. METHODS: Three sizes each (21, 23, and 25 mm) of 5 aortic bioprostheses (Magna, Edwards Lifesciences, Irvine, CA; Trifecta and Epic, St...
January 25, 2017: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/28128540/determinants-of-aortic-regurgitation-after-transcatheter-aortic-valve-implantation-an-observational-study-using-multi-slice-computed-tomography-msct-guided-sizing
#8
Zouhair Rahhab, Nahid El Faquir, Ramón Rodríguez-Olivares, Claire Ren, Nicolas VAN Mieghem, Marcel L Geleijnse, Carl Schultz, Ron VAN Domburg, Peter P DE Jaegere
BACKGROUND: To explore the determinants of aortic regurgitation (AR) after transcatheter aortic valve implantation (TAVI) using Multi Slice Computed Tomography (MSCT) instead of echocardiography-guided sizing. METHODS: Determinants of AR were assessed in 313 consecutive patients who underwent TAVI with the Medtronic(MCS, n=259) or Edwards Sapien or XT(ESV, n=54) using MSCT- guided sizing. AR was assessed by angiography immediately after TAVI (n=313, Sellers) and by echocardiography at discharge (n=285, VARC-2)...
January 27, 2017: Journal of Cardiovascular Surgery
https://www.readbyqxmd.com/read/28104211/balloon-post-dilation-following-implantation-of-a-self-expanding-transcatheter-aortic-valve%C3%A2-bioprosthesis
#9
J Kevin Harrison, G Chad Hughes, Michael J Reardon, Robert Stoler, Paul Grayburn, Robert Hebeler, David Liu, Yanping Chang, Jeffrey J Popma
OBJECTIVES: This study sought to explore the impact of balloon post-dilation (BPD) on outcomes in the CoreValve US Clinical Trials. BACKGROUND: BPD following transcatheter aortic valve replacement (TAVR) has been used in selected cases to optimize hemodynamic results. METHODS: Procedural details of 3,532 patients were examined to determine whether BPD was performed after self-expanding TAVR. "Best practice" guidelines recommended BPD for treatment of suboptimal intraprocedural valve function, primarily manifested by moderate or severe residual aortic regurgitation (AR)...
January 23, 2017: JACC. Cardiovascular Interventions
https://www.readbyqxmd.com/read/28078734/coronary-procedures-after-tavi-with-the-self-expanding-aortic-bioprosthesis-medtronic-corevalve%C3%A2-not-an-easy-matter
#10
Madjid Boukantar, Romain Gallet, Gauthier Mouillet, Abdelkaoui Belarbi, Vladimir Rubimbura, Julien Ternacle, Jean-Luc Dubois-Rande, Emmanuel Teiger
OBJECTIVES: To evaluate the feasibility of coronary procedures after transcatheter aortic valve implantation (TAVI) with the CoreValve™ device. BACKGROUND: Due to its design, CoreValve™ prosthesis may interfere with coronary procedures. Data on this issue are sparse. METHODS: Between 2007 and 2015, 550 patients underwent CoreValve™ TAVI in our hospital. Among them, 16 underwent coronary angiogram after TAVI and were included in our retrospective study...
February 2017: Journal of Interventional Cardiology
https://www.readbyqxmd.com/read/28067197/comparison-of-procedural-and-clinical-outcomes-with-evolut-r-versus-medtronic-corevalve-a-swiss-tavi-registry-analysis
#11
Stephane Noble, Stefan Stortecky, Dik Heg, David Tuller, Raban Jeger, Stefan Toggweiler, Enrico Ferrari, Fabian Nietlispach, Maurizio Taramasso, Francesco Maisano, Jürg Grünenfelder, Peter Jüni, Christoph Huber, Thierry Carrel, Stephan Windecker, Peter Wenaweser, Marco Roffi
AIMS: Data on procedural and clinical outcomes after transcatheter aortic valve implantation (TAVI) with the new generation self-expanding Medtronic Evolut-R prosthesis in comparison with its predecessor, the Medtronic CoreValve, are scarce. METHODS AND RESULTS: In a nationwide, prospective, multi-center cohort study outcomes of consecutive transfemoral TAVI patients treated with the new- generation Medtronic Evolut-R (September 2014 - February 2016) and the Medtronic CoreValve (February 2011 - February 2016) were investigated...
January 10, 2017: EuroIntervention
https://www.readbyqxmd.com/read/28057286/transcatheter-valve-in-ring-implantation%C3%A2-for-the-treatment-of-residual%C3%A2-or-recurrent-tricuspid-valve-dysfunction-after-prior-surgical-repair
#12
Jamil Aboulhosn, Allison K Cabalka, Daniel S Levi, Dominique Himbert, Luca Testa, Azeem Latib, Raj R Makkar, Younes Boudjemline, Dennis W Kim, Joelle Kefer, Sabine Bleiziffer, Gunter Kerst, Danny Dvir, Doff B McElhinney
OBJECTIVES: This study sought to describe the results of transcatheter tricuspid valve-in-ring (TVIR) implantation for treatment of tricuspid regurgitation (TR). BACKGROUND: Off-label use of transcatheter valves within surgically placed tricuspid annuloplasty prostheses has only been described in small reports. An international multicenter registry was developed to collect data on TVIR implantation. METHODS: Data were collected from 13 sites on 22 patients (5 to 69 years of age) with TR who underwent catheterization with the intent to perform TVIR implantation...
January 9, 2017: JACC. Cardiovascular Interventions
https://www.readbyqxmd.com/read/28043429/results-of-cryoablation-for-atrial-fibrillation-concomitant-with-video-assisted-minimally-invasive-mitral-valve-surgery
#13
Giovanni Marchetto, Matteo Anselmino, Chiara Rovera, Samuel Mancuso, Davide Ricci, Marina Antolini, Mara Morello, Fiorenzo Gaita, Mauro Rinaldi
Interest in minimally invasive video-assisted mitral valve surgery (MIMVS) is rapidly growing. Data on concomitant atrial fibrillation (AF) ablation to MIMVS are still lacking. The present study investigates the long-term results of AF cryoablation concomitant to MIMVS. From October 2006-September 2014, 68 patients with mitral valve disease (age 65.9 ± 11.1 years, 34 men out of 68 patients, Euroscore log 5.4 ± 4.5) and drug-resistant AF underwent MIMVS via right minithoracotomy and concomitant left-sided AF endocardial cryoablation (Cryoflex Medtronic, Minneapolis, MN)...
July 2016: Seminars in Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/28038838/-interventional-cardiac-catheterization-in-congenital-heart-disease
#14
François Godart, Ali Houeijeh
Interventional cardiac catheterization has a major place in the management of congenital heart disease. Since the Rashkind atrioseptostomy in mid-1960s, many techniques have been developed. For some, it is necessary to close a cardiac or extracardiac shunt using occluder (double disc system, plug, coil…): closure of atrial septal defect, ventricular septal defect or patent arterial duct. For others, it is necessary to treat a valvular or vascular stenosis using a balloon catheter: dilatation of the pulmonary or the aortic valve, dilatation of aortic coarctation...
December 27, 2016: La Presse Médicale
https://www.readbyqxmd.com/read/28034684/thirty-day-outcome-following-corevalve-evolut-r-transcatheter-aortic-valve-implantation-an-all-comers-prospective-study
#15
Nils Perrin, Marco Roffi, Angela Frei, Anne-Lise Hachulla, Christoph Ellenberger, Hajo Müller, Mustafa Cikirikcioglu, Marc Licker, Stephane Noble
INTRODUCTION AND OBJECTIVES: There are scarce clinical outcomes data on the new generation recapturable and repositionable CoreValve Evolut R. METHODS: Data on all-comer patients undergoing transcatheter aortic valve implantation (TAVI) with the Evolut R for severe symptomatic aortic stenosis at a single center were prospectively collected between February 2015 and April 2016. Clinical endpoints were independently adjudicated according to the Valve Academic Research Consortium-2 criteria...
December 26, 2016: Revista Española de Cardiología
https://www.readbyqxmd.com/read/28029363/comparison-of-the-edwards-sapien-s3-versus-medtronic-evolut-r-devices-for-transcatheter-aortic-valve-implantation
#16
Jeremy Ben-Shoshan, Maayan Konigstein, David Zahler, Gilad Margolis, Ehud Chorin, Arie Steinvil, Yaron Arbel, Galit Aviram, Yoav Granot, Michael Barkagan, Gad Keren, Amir Halkin, Shmuel Banai, Ariel Finkelstein
New generation of the most widely used devices for transcatheter aortic valve implantation have been recently introduced into practice. We compare the short-term outcomes of transcatheter aortic valve implantation with the Edwards SAPIEN S3 and the Medtronic Evolut-R. We performed a retrospective analysis from a single high-volume tertiary center. Valve Academic Research Consortium-2 criteria were used to define composite end points of device success and safety at 30 days. Study population included 232 patients implanted with the SAPIEN S3 (n = 124) and Evolut-R (n = 108)...
October 7, 2016: American Journal of Cardiology
https://www.readbyqxmd.com/read/28028692/in-vitro-hydrodynamic-assessment-of-a-new-transcatheter-heart-valve-concept-the-triskele
#17
Benyamin Rahmani, Spyros Tzamtzis, Rose Sheridan, Michael J Mullen, John Yap, Alexander M Seifalian, Gaetano Burriesci
This study presents the in vitro hydrodynamic assessment of the TRISKELE, a new system suitable for transcatheter aortic valve implantation (TAVI), aiming to mitigate the procedural challenges experienced with current technologies. The TRISKELE valve comprises three polymeric leaflet and an adaptive sealing cuff, supported by a novel fully retrievable self-expanding nitinol wire frame. Valve prototypes were manufactured in three sizes of 23, 26, and 29 mm by automated dip-coating of a biostable polymer, and tested in a hydrodynamic bench setup in mock aortic roots of 21, 23, 25, and 27 mm annulus, and compared to two reference valves suitable for equivalent implantation ranges: Edwards SAPIEN XT and Medtronic CoreValve...
December 27, 2016: Journal of Cardiovascular Translational Research
https://www.readbyqxmd.com/read/28018817/transcatheter-valve-unable-to-cure-patient-prosthesis-mismatch-of-mosaic-bioprosthesis
#18
Daniela Serio, Andreas Zierer, Mirko Doss, Anton Moritz
Transcatheter aortic valve implantation (TAVI) has been recently established as a less invasive alternative to conventional aortic valve replacement (CAVR) in patients presenting with expected high procedural risk. The rapid technologic advances and the recent improvement of clinical outcomes with TAVI have made it possible to treat degenerated bioprosthesis using the valve-in-valve implantation concept (Walther T, Simon P, Dewey T, et al. Transapical minimally invasive aortic valve implantation: multicenter experience...
December 2016: Thoracic and Cardiovascular Surgeon Reports
https://www.readbyqxmd.com/read/28009943/corevalve-prosthesis-depth-what-is-the-optimal-measurement-target
#19
Rafael Wolff, Sam Radhakrishnan, Hirotsugu Mitsuhashi, Anna Zavodni, Idan Roifman, John D Sparkes, Stephen E Fremes, Sabina Bakar-Irwin, Mark S Hansen, Bradley H Strauss
BACKGROUND: A major drawback of the transcatheter aortic valve replacement (TAVR) procedure using the self-expandable Medtronic CoreValve (MCV) prosthesis is the high incidence of conduction disturbances and the need for postprocedural permanent pacemaker (PPM) implantation. The depth of prosthesis implantation may be an important contributing factor. The study aim was to determine the relationship between angiographic measurements of the MCV prosthesis depth and the occurrence of new conduction disturbances and need for PPM after TAVR...
July 2016: Journal of Heart Valve Disease
https://www.readbyqxmd.com/read/28009942/morphological-characteristics-and-calcification-of-the-native-aortic-valve-and-the-relation-to-significant-aortic-regurgitation-after-corevalve-tavi
#20
Bart Bosmans, Valérie Collas, Eva Verhoelst, Bernard Paelinck, Jos Vander Sloten, Johan Bosmans
BACKGROUND: Aortic regurgitation (AR) is a frequent and life-limiting complication after transcatheter aortic valve implantation (TAVI). The study aim was to relate post-TAVI AR, using a self-expandable stent, to detailed baseline anatomical and morphological characteristics of the native aortic valve. METHODS: A total of 82 patients (40 males, 42 females; mean age 80 ± 7 years) who received a Medtronic CoreValve implant was included. Aortic root morphology, aortic annulus and implant size mismatch, implant position, extent of aortic annulus and leaflet calcification, the connected sub-annular calcification volume, and their distribution were quantified based on computed tomography scan analysis...
July 2016: Journal of Heart Valve Disease
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