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https://www.readbyqxmd.com/read/29924376/immediate-improvement-of-left-ventricular-mechanics-following-transcatheter-aortic-valve-replacement
#1
Vanesa Cristina Lozano Granero, Sara Fernández Santos, Covadonga Fernández-Golfín, María Plaza Martín, Jesús María de la Hera Galarza, Francesco Fulvio Faletra, Martin J Swaans, Teresa López-Fernández, Dolores Mesa, Giovanni La Canna, Tomás Echeverría García, Gilbert Habib, Amparo Martíne Monzonís, José Luis Zamorano Gómez
BACKGROUND: Left ventricular (LV) mechanics are impaired in patients with severe aortic stenosis (AS). Transcatheter aortic valve replacement (TAVR) has become a widespread technique for patients with severe AS considered inoperable or high risk for traditional open-surgery. This procedure could have a positive impact in LV mechanics. The aim of this study was to evaluate the immediate effect of TAVR on LV function recovery, as assessed by myocardial deformation parameters. METHODS: One-hundred twelve consecutive patients (81...
June 20, 2018: Cardiology Journal
https://www.readbyqxmd.com/read/29922535/exploring-the-difference-in-post-procedural-stroke-rates-between-patients-with-aortic-stenosis-who-undergo-transcatheter-aortic-valve-replacement-versus-surgical-aortic-valve-replacement
#2
REVIEW
Heather Burke, Agnieszka Boron, Jung-Hyun Lee, Kudrit Riana Kahlon
Transcatheter aortic valve replacement (TAVR) is a newer alternative to surgical aortic valve replacement (SAVR) for patients with severe aortic stenosis. Clinical trials have investigated TAVR's safety and effectiveness. Cerebral embolization is a common complication leading to stroke after TAVR and SAVR; different cerebral protection methods have been studied to prevent this. This paper evaluates the rate of post-procedural stroke rates between TAVR and SAVR and investigates the effect of cerebral protective methods on the stroke risk post-TAVR...
April 17, 2018: Curēus
https://www.readbyqxmd.com/read/29909590/do-cta-measurements-of-annular-diameter-perimeter-and-area-result-in-different-tavi-prosthesis-sizes
#3
Barbora Horehledova, Casper Mihl, Babs M F Hendriks, Nienke G Eijsvoogel, Jindrich Vainer, Leo F Veenstra, Joachim E Wildberger, Marco Das
Incorrect prosthesis size has direct impact on patient outcome after transcatheter aortic valve implantation (TAVI) procedure. Currently, annular diameter, area or perimeter may be used for prosthesis size selection. The aim was to evaluate whether the use different annular dimensions would result in the selection of different prosthesis sizes, when assessed in the same TAVI-candidate during the same phase of a cardiac cycle. Fifty consecutive TAVI-candidates underwent retrospectively ECG-gated computed tomography angiography (CTA)...
June 16, 2018: International Journal of Cardiovascular Imaging
https://www.readbyqxmd.com/read/29909110/comprehensive-echocardiographic-assessment-of-normal-transcatheter-valve-function
#4
Rebecca T Hahn, Jonathon Leipsic, Pamela S Douglas, Wael A Jaber, Neil J Weissman, Philippe Pibarot, Philipp Blanke, Jae K Oh
OBJECTIVES: This study aims to establish parameters for identifying normal function for each of the 3 iterations of balloon-expandable valves and 2 iterations of self-expanding valves. BACKGROUND: Expected transthoracic echocardiographic Doppler-derived hemodynamic data for transcatheter aortic valves inform pre-implant decision-making and post-implanted monitoring of longitudinal valve function. METHODS: We collected the Echocardiography Core Lab measured mean gradients and effective orifice area (EOA) from discharge or 30-day echocardiograms from randomized trials; the PARTNER (Placement of Aortic Transcatheter Valves) trials for the balloon-expandable valves and the Medtronic CoreValve US Pivotal trial and Medtronic CoreValve Evolut R United States IDE Clinical Study for the self-expanding valves...
June 8, 2018: JACC. Cardiovascular Imaging
https://www.readbyqxmd.com/read/29873698/evolut-r-implantation-via-the-brachial-artery
#5
Giuseppe Bruschi, Bruno Merlanti, Paola Colombo, Claudio F Russo
Transfemoral transcatheter aortic valve implantation is an established therapy to treat elderly patients affected by severe aortic stenosis, who are considered to be at high or extreme risk for surgical aortic valve replacement. The transfemoral approach is contraindicated in patients with severe peripheral artery disease, small vessel size or severe tortuosity. In these patients, other vascular access routes such as transapical, subclavian or direct-aortic access may be considered. We describe the first case of a Medtronic Evolut R (Medtronic, Minneapolis, MN, USA) implantation made through the brachial artery in a 75-year-old patient affected by severe aortic stenosis...
June 4, 2018: European Journal of Cardio-thoracic Surgery
https://www.readbyqxmd.com/read/29850412/procedural-challenge-of-coronary-catheterization-for-st-segment-elevation-myocardial-infarction-in-patient-who-underwent-transcatheter-aortic-valve-replacement-using-the-corevalve-tm
#6
Yukio Aikawa, Yu Kataoka, Tomoaki Kanaya, Makoto Amaki, Yoshio Tahara, Yasuhide Asaumi, Hideaki Kanzaki, Teruo Noguchi, Tomoyuki Fujita, Junjiro Kobayashi, Satoshi Yasuda
A 73-year-old man with severe aortic valve stenosis successfully underwent transcatheter aortic valve replacement (TAVR) using CoreValveTM (29 mm, Medtronic Inc., Minneapolis, MN, USA). Four years after the TAVR, he was hospitalized due to anterior ST-segment elevation myocardial infarction. Despite the need for prompt restoration of coronary flow in the infarct-related artery, the implanted CoreValveTM profoundly restricted the manipulation of diagnostic catheters during the coronary angiography. In particular, (I) guidewire easily migrated into the space between CoreValveTM and aorta vessel wall; (II) the nickel-titanium frame of CoreValveTM limited the space to manipulate catheters, making difficult to advance Judkins left (JL) 4, Judkins right (JR) 4 and Amplatz left 1 into coronary cusps; and (III) selecting specific spot within frame was required for cannulation...
April 2018: Cardiovascular Diagnosis and Therapy
https://www.readbyqxmd.com/read/29808820/transcatheter-aortic-valve-implantation-with-the-34-mm-self-expanding-corevalve-evolut-r-initial-experience-in-101-patients-from-a-multicentre-registry
#7
Christian Kuhn, Christian Frerker, Anne-Kathrin Meyer, Thomas Kurz, Ulrich Schäfer, Florian Deuschl, Mohammed Abdel-Wahab, Dimitry Schewel, Ahmed Elghalban, Karl-Heinz Kuck, Norbert Frey, Derk Frank
AIMS: The recently released Medtronic CoreValve Evolut R 34 mm is the largest self-expanding transcatheter heart valve ever developed. Clinical data for this device size are scarce. We therefore aimed to evaluate the clinical performance and safety of the new device. METHODS AND RESULTS: We report on the first 101 consecutive patients treated with transfemoral transcatheter aortic valve implantation (TAVI) using the 34 mm Evolut R device in a multicentre registry...
June 8, 2018: EuroIntervention
https://www.readbyqxmd.com/read/29807762/high-resolution-three-dimensional-strain-mapping-of-bioprosthetic-heart-valves-using-digital-image-correlation
#8
Mostafa Abbasi, Dong Qiu, Yashar Behnam, Danny Dvir, Chadd Clary, Ali N Azadani
Transcatheter aortic valve replacement (TAVR) is a safe and effective treatment option for patients deemed at high and intermediate risk for surgical aortic valve replacement. Similar to surgical aortic valves (SAVs), transcatheter aortic valves (TAVs) undergo calcification and mechanical wear over time. However, to date, there have been limited publications on the long-term durability of TAV devices. To assess longevity and mechanical strength of TAVs in comparison to surgical bioprosthetic valves, three-dimensional deformation analysis and strain measurement of the leaflets become an inevitable part of the evaluation...
May 22, 2018: Journal of Biomechanics
https://www.readbyqxmd.com/read/29807136/retrieval-of-a-micra-transcatheter-pacing-system-in-a-heart-with-a-preexisting-lead
#9
Junji Morita, Masato Fukunaga, Kenichi Hiroshima, Michio Nagashima, Mizuki Miura, Kenji Ando
We report the case of a 74-year-old man with a previously implanted pacemaker lead. He had undergone Medtronic™ Micra Transcatheter Pacing System (TPS, Medtronic plc, MN, USA) implantation because of lead fracture. We implanted a new TPS and retrieved the dislodged one. We used a multiple-loop snare (EN snare® ) and an 8.5F steerable sheath (Agilis NXT; St. Jude Medical, St Paul, MN, USA). The TPS was obstructed by the chordae tendineae of the tricuspid valve and the pacemaker lead. We pushed the TPS to the apex site; this enabled us to move the TPS away from the chordae tendineae and pacemaker lead...
May 25, 2018: Indian Pacing and Electrophysiology Journal
https://www.readbyqxmd.com/read/29801748/hybrid-melody-valve-implantation-in-mitral-position-in-a-child-usefulness-of-a-3-dimensional-printed-model-for-preprocedural-planning
#10
Zakaria Jalal, Pierre-Emmanuel Seguela, Xavier Iriart, François Roubertie, Astrid Quessard, Bernard Kreitmann, Jean-Benoit Thambo
We present the case of a 4-month-old child with atrioventricular canal associated with severe left atrioventricular valve dysfunction who previously underwent 3 surgical valve reconstructions without significant improvement. A Hybrid Melody valve (Medtronic, Minneapolis, MN) insertion was planned. Because of the low weight, the risk of left ventricular outflow tract obstruction was significant and therefore evaluated preprocedurally using a cardiac computed tomography-derived 3-dimensional printed model. In vitro tests showed good anchorage of the valve without subaortic obstruction and the procedure was then achieved with an excellent clinical result...
June 2018: Canadian Journal of Cardiology
https://www.readbyqxmd.com/read/29753513/high-incidence-of-late-infective-endocarditis-in-bovine-jugular-vein-valved-conduits
#11
Ziv Beckerman, Luis E De León, Rodrigo Zea-Vera, Carlos M Mery, Charles D Fraser
BACKGROUND: Bovine jugular vein (BJV) grafts (Medtronic, Inc, Minneapolis, Minn) are used to restore right ventricle-to-pulmonary artery continuity. Recent studies have associated these grafts with the development of infective endocarditis. The purpose of this study was to report the incidence of endocarditis in BJV grafts. METHODS: All BJV grafts placed in the right ventricle-to-pulmonary artery position between 2001 and 2017 at our institution were included. Freedom from endocarditis was analyzed using the Kaplan-Meier method and parametric survival regression models...
April 13, 2018: Journal of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/29739020/how-do-transcatheter-heart-valves-fit-in-mitral-annuloplasty-rings-and-which-combination-can-be-recommended
#12
Roya Ostovar, Ralf-Uwe Kuehnel, Michael Erb, Martin Hartrumpf, Thomas Claus, Robert Haase, Johannes M Albes
BACKGROUND:  Transcatheter heart valve (THV) as valve-in-ring is increasingly used in the mitral position. Semi-rigid rings may serve as a more appropriate scaffold for proper anchoring of a THV as they may change from their oval to a round shape thereby fitting to the implanted THV. METHODS:  One rigid and five semi-rigid rings of four manufacturers, Edwards Physio I and II, Sorin 3D Memo, Medtronic Simulus, and St. Jude Medical (SJM) Saddle and SJM Sequin, with sizes 28 to 36 mm and Edwards Sapien III THV 23, 26, and 29 mm were used...
May 8, 2018: Thoracic and Cardiovascular Surgeon
https://www.readbyqxmd.com/read/29726601/comparison-of-paravalvular-aortic-leak-characteristics-in-the-medtronic-corevalve-versus-edwards-sapien-valve-paravalvular-aortic-leak-characteristics
#13
Olivia N Gilbert, Charles H Choi, Jodie L Franzil, Melissa Caughey, Waqas Qureshi, R Brandon Stacey, Min Pu, Robert J Applegate, Sanjay K Gandhi, David X M Zhao
OBJECTIVES: Temporally quantify and localize paravalvular aortic leak (PVL) after transcatheter aortic valve replacement (TAVR) in the Medtronic CoreValve (MCV) versus the Edwards Sapien Valve (ESV). BACKGROUND: In order to increase the precision of THV selection and PVL intervention, an understanding of PVL characteristics is essential. METHODS: The frequency, severity, and location of post-TAVR PVL were evaluated with transthoracic echocardiography pre-discharge, one month, and one-year post-procedure in 202 patients receiving a MCV (N = 120) or ESV (N = 81)...
May 4, 2018: Catheterization and Cardiovascular Interventions
https://www.readbyqxmd.com/read/29696693/cardiovascular-magnetic-resonance-assessment-of-1st-generation-corevalve-and-2nd-generation-lotus-valves
#14
Tarique Al Musa, Akhlaque Uddin, Laura E Dobson, Peter P Swoboda, Pankaj Garg, James R J Foley, Christopher Malkin, Sven Plein, Daniel J Blackman, John P Greenwood
OBJECTIVES: We sought to compare using serial CMR, the quantity of AR and associated valve hemodynamics, following the first-generation CoreValve (Medtronic, Minneapolis, MN) and the second-generation Lotus valve (Boston Scientific, Natick, MA). BACKGROUND: Aortic regurgitation (AR) following Transcatheter Aortic Valve Replacement (TAVR) confers a worse prognosis and can be accurately quantified using cardiovascular magnetic resonance (CMR). Second generation valves have been specifically designed to reduce paravalvular AR and improve clinical outcomes...
June 2018: Journal of Interventional Cardiology
https://www.readbyqxmd.com/read/29688322/conduction-dynamics-after-transcatheter-aortic-valve-implantation-and-implications-for-permanent-pacemaker-implantation-and-early-discharge-the-conduct-study
#15
Lennart van Gils, Sara Baart, Herbert Kroon, Zouhair Rahhab, Nahid El Faquir, Ramón Rodriguez Olivares, Yaar Aga, Anne-Marie Maugenest, Dominic A Theuns, Eric Boersma, Tamas Szili Torok, Peter P De Jaegere, Nicolas M Van Mieghem
Aims: To correlate dynamics in electrical conduction after transcatheter aortic valve implantation (TAVI) with need for permanent pacemaker implantation (PPM) and assess implications for early discharge. Methods and results: Daily electrocardiograms after TAVI were analysed for rhythm and conduction times and were correlated with PPM. Transcatheter aortic valve implantation was performed in 291 consecutive patients with three contemporary transcatheter heart valve designs: Medtronic CoreValve (n = 111), Edwards Sapien XT (n = 29) and Sapien 3 (n = 72), and Boston Lotus (n = 79)...
April 20, 2018: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/29628466/increase-carotid-flow-by-double-sheath-connection-technique-to-reduce-cerebral-ischemia-for-transcatheter-aortic-valve-implantation-through-transcarotid-approach
#16
Richard Tsai, I-Ming Chen, Po-Lin Chen, Hsin-Bang Leu, Ying-Hwa Chen, Hsiao-Huang Chang
PURPOSE: Transcarotid transcatheter aortic valve implantation (TAVI) is one alternative approach if unfavorable femoral access. However, this approach may cause cerebral vascular accidents (CVAs) by temporarily occluding common carotid artery (CCA). The purpose of this study is to develop a new method reducing cerebral ischemia during transcarotid TAVI. METHODS: We inserted an 8- and 18-Fr. sheath in CCA with tip toward brain and aortic arch, respectively, and connected their side arms to create a bypass flow...
April 6, 2018: Annals of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/29599379/comparison-of-general-anaesthesia-and-non-general-anaesthesia-approach-in-transfemoral-transcatheter-aortic-valve-implantation
#17
Mehdi Eskandari, Omar Aldalati, Rafal Dworakowski, Jonathan A Byrne, Emma Alcock, Olaf Wendler, Philip A MacCarthy, Peter F Ludman, David J R Hildick-Smith, Mark J Monaghan
OBJECTIVE: Performing transfemoral transcatheter aortic valve implantation (TAVI) without general anaesthesia (GA) has been increasingly adopted. We sought to study the impact of GA and non-GA approaches on procedural outcome and 30-day and 1-year mortality in transfemoral TAVI. METHODS: The UK TAVI registry holds information for every TAVI procedure in the UK. We analysed the data for patients implanted during 2013-2014 using either an Edwards Sapien or a Medtronic CoreValve prosthesis...
March 29, 2018: Heart: Official Journal of the British Cardiac Society
https://www.readbyqxmd.com/read/29590420/on-pump-transapical-cardioscopic-mitral-valve-replacement-with-cardiac-arrest-short-term-results-in-a-porcine-survival-model
#18
Thang Duc Vu, Duc-Viet Nguyen, Min Zin Oo, Mohamed Alaa, Ervin Marquez Ocampo, Suganya Cheyyatraivendran Arularasu, Phyo Wai Win, Nurdiyana Ja'afar, Goh Si-Guim, Patsy Ong, Lian Kah Ti, Arthur Mark Richards, Theo Kofidis
OBJECTIVES: Favourable outcomes with mitral annuloplasty have been achieved with transapical cardioscopic (TAC) surgery in a survival animal model. In addition, experimental TAC on a non-survival animal model also showed adequate access to remove the native mitral valve and implant a prosthetic valve, but the surgical procedure took a long time and lacked follow-up data. The goal of this study was to develop a clinically translatable TAC mitral valve replacement (MVR) procedure using technical and instrumental refinements to reduce the surgical time and to evaluate functional recovery and short-term durability using a survival porcine model...
March 26, 2018: Interactive Cardiovascular and Thoracic Surgery
https://www.readbyqxmd.com/read/29579171/a-comparison-of-early-redo-surgery-rates-in-mosaic-porcine-and-perimount-bovine-pericardial-valves
#19
Jessica Webb, Denise Parkin, Kristin Tøndel, Panagiotis Simitsis, James Roxburgh, John B Chambers
OBJECTIVES: The objective of this study was to compare rates of redo surgery for the Medtronic Mosaic 305 A Porcine Prosthesis and the Carpentier-Edwards Perimount Pericardial Aortic Bioprosthesis 2900. METHODS: This was a single-centre retrospective observational study. We included all 1018 patients who underwent aortic valve replacement with a Mosaic (n = 216) or Perimount (n = 809) bioprosthesis between October 2000 and August 2008. The total follow-up was 1508 patient-years for the Mosaic valve and 5813 for the Perimount valve...
March 20, 2018: European Journal of Cardio-thoracic Surgery
https://www.readbyqxmd.com/read/29566801/transcatheter-pulmonary-valve-replacement-with-the-melody-valve-in-small-diameter-expandable-right-ventricular-outflow-tract-conduits
#20
Shabana Shahanavaz, Athar M Qureshi, Daniel S Levi, Younes Boudjemline, Lynn F Peng, Mary Hunt Martin, Holly Bauser-Heaton, Britton Keeshan, Jeremy D Asnes, Thomas K Jones, Henri Justino, Jamil A Aboulhosn, Robert G Gray, Hoang Nguyen, David T Balzer, Doff B McElhinney
OBJECTIVES: This study sought to evaluate the safety, feasibility, and outcomes of transcatheter pulmonary valve replacement (TPVR) in conduits ≤16 mm in diameter. BACKGROUND: The Melody valve (Medtronic, Minneapolis, Minnesota) is approved for the treatment of dysfunctional right ventricular outflow tract (RVOT) conduits ≥16 mm in diameter at the time of implant. Limited data are available regarding the use of this device in smaller conduits. METHODS: The study retrospectively evaluated patients from 9 centers who underwent percutaneous TPVR into a conduit that was ≤16 mm in diameter at the time of implant, and reported procedural characteristics and outcomes...
March 26, 2018: JACC. Cardiovascular Interventions
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