keyword
MENU ▼
Read by QxMD icon Read
search

Self-expanding valve

keyword
https://www.readbyqxmd.com/read/29754916/accuracy-of-device-landing-zone-calcium-volume-measurement-with-contrast-enhanced-multidetector-computed-tomography
#1
Won-Keun Kim, Matthias Renker, Andreas Rolf, Christoph Liebetrau, Arnaud Van Linden, Mani Arsalan, Mirko Doss, Julian Rieck, Maksymilian P Opolski, Helge Möllmann, Thomas Walther, Christian W Hamm
BACKGROUND: The extent of aortic valve calcification is an important determinant of procedural success in transcatheter aortic valve implantation (TAVI). We sought to validate device landing zone calcium volume (DLZ-CV) measurements on contrast-enhanced multidetector computed tomography (MDCT) with non-contrast-enhanced scans as reference. METHODS: We determined DLZ-CV in 141 patients undergoing transfemoral TAVI. Non-contrast-enhanced images were analyzed using a threshold of 130 HU as reference (DLZ-CV130 )...
July 15, 2018: International Journal of Cardiology
https://www.readbyqxmd.com/read/29741488/long-term-durability-and-hemodynamic-performance-of-a-self-expanding-transcatheter-heart-valve-beyond-5-years-after-implantation-a-prospective-observational-study-applying-the-standardized-definitions-of-structural-deterioration-and-valve-failure
#2
Erik W Holy, Julia Kebernik, Mohammad Abdelghani, Simon F Stämpfli, Jens Hellermann, Abdelhakim Allali, Mohamed El-Mawardy, Susanne Sachse, Thomas F Lüscher, Felix C Tanner, Gert Richardt, Mohamed Abdel-Wahab
AIMS: Long-term results of transcatheter aortic valve implantation (TAVI), in particular the incidence of bioprosthetic valve failure (BVF), are uncertain. METHODS AND RESULTS: The study prospectively included all 152 patients who had undergone TAVI with the self-expanding CoreValve™ up to December 2011 at the Heart Center, Bad Segeberg, Germany. Late BVF (>30 days) was defined as either: 1) Severe structural valve deterioration (trans-prosthetic mean pressure gradient ≥40 mmHg and/or ≥20 mmHg rise from baseline OR severe intra-prosthetic aortic regurgitation), OR 2) Bioprosthetic valve dysfunction leading to death or re-intervention...
May 8, 2018: EuroIntervention
https://www.readbyqxmd.com/read/29741486/computed-tomography-based-oversizing-and-incidence-of-para-valvular-aortic-regurgitation-and-permanent-pacemaker-implantation-with-a-new-generation-self-expanding-transcatheter-heart-valve
#3
Ung Kim, Philipp Blanke, Stephan Windecker, Albert M Kasel, Ulrich Schäfer, Darren Walters, Axel Linke, Herve Le Breton, Gerhard Schymik, Mark S Spence, Lars Sondergaard, Mohammed Abdel-Wahab, Stephen Worthley, Didier Tchetche, Hermann Reichenspurner, Mickael Ohana, Stephanie L Sellers, Jonathon A Leipsic
AIMS: We aimed to evaluate the relationship between CT-based annular perimeter oversizing and the incidence of paravalvular aortic regurgitation (PAR) and permanent pacemaker (PPM) implantation in patients treated with the new self-expanding CENTERA transcatheter heart valve (THV) for severe aortic stenosis. METHODS AND RESULTS: 198 patients in the CENTERA-EU trial were stratified priori into four groups based on the perimeter oversizing (2.5%-10%, 10-15%, 15-20% and >20%)...
May 8, 2018: EuroIntervention
https://www.readbyqxmd.com/read/29730344/the-cost-effectiveness-of-self-expandable-transcatheter-aortic-valves-in-intermediate-risk-patients
#4
Derrick Y Tam, Avery Hughes, Harindra C Wijeysundera, Stephen E Fremes
BACKGROUND: A recent clinical trial showed that self-expandable transcatheter aortic valve replacement (TAVR) was non-inferior to surgical aortic valve replacement (SAVR). However, the cost-effectiveness of self-expandable TAVR in the intermediate risk population remains unknown. METHODS: A cost-utility analysis from the Canadian healthcare system payer's perspective was undertaken comparing self-expandable TAVR to SAVR. A fully probabilistic Markov model over the patient's life-time was constructed to estimate differences in costs (2016 Canadian dollars) and effectiveness (quality-adjusted life-years (QALYs)), discounted at 1...
May 3, 2018: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/29709358/transcatheter-tricuspid-valve-replacement-with-a-self-expanding-bioprosthesis
#5
EDITORIAL
Andrea Colli, Gino Gerosa, Krzysztof Bartus, Giuseppe Tarantini
No abstract text is available yet for this article.
April 4, 2018: Journal of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/29706182/prognostic-impact-of-calcium-score-after-transcatheter-aortic-valve-implantation-performed-with-new-generation-prosthesis
#6
Mariama Akodad, Benoit Lattuca, Audrey Agullo, Jean-Christophe Macia, Thomas Gandet, Grégory Marin, Anaïs Iemmi, Hélène Vernhet, Laurent Schmutz, Nicolas Nagot, Bernard Albat, Guillaume Cayla, Florence Leclercq
Calcium score (CS) is a well-known prognostic factor after transcatheter aortic valve implantation (TAVI) performed with first generation prosthesis but few data are available concerning new generation valves. The aim of this study was to evaluate if CS remains a prognostic factor after Sapien 3 and Evolut R valves implantation. Agatston CS was evaluated on multislice computed tomography before TAVI in 346 patients implanted with Sapien XT (n = 61), CoreValve (n = 57) devices, (group 1, n = 118), and with new generation Sapien 3 (n = 147), Evolut R (n = 81) prosthesis, (group 2, n = 228)...
May 15, 2018: American Journal of Cardiology
https://www.readbyqxmd.com/read/29705866/outcomes-with-a-latest-generation-self-expandable-intra-annular-re-sheathable-transcatheter-heart-valve-system-analysis-of-patients-with-impaired-left-ventricular-function-and-determinants-for-pacemaker-implantation
#7
Andreas Schaefer, Niklas Neumann, Matthias Linder, Niklas Schofer, Yvonne Schneeberger, Florian Deuschl, Gerhard Schoen, Stefan Blankenberg, Hermann Reichenspurner, Lenard Conradi, Ulrich Schäfer
OBJECTIVES: We herein report a single-center experience with the Portico TAVI system. Main focus was set on outcomes in patients with impaired left ventricular (LV) function and predictors for permanent pacemaker (PPM) implantation. METHODS: Between 05/2014 and 10/2017, 106 consecutive patients received TAVI using the Portico device. For comparison of patients with/without impaired LV function, and determination of multi-slice computed tomography and electrocardiogram correlates for PPM implantation subgroups were built (Subgroup I: LVEF ≥ 50%, n = 69, Subgroup II: LVEF < 50%, n = 37; Subgroup A: no PPM implantation, n = 89; Subgroup B: PPM implantation, n = 17)...
April 28, 2018: Clinical Research in Cardiology: Official Journal of the German Cardiac Society
https://www.readbyqxmd.com/read/29680215/in-vivo-stent-frame-infolding-of-a-self-expanding-transcatheter-aortic-valve-after-resheathing
#8
Mohammad Abdelghani, Ahmed El Ghalban, Martin Landt, Gert Richardt, Mohamed Abdel-Wahab
No abstract text is available yet for this article.
April 12, 2018: JACC. Cardiovascular Interventions
https://www.readbyqxmd.com/read/29680171/impact-of-balloon-predilatation-on-hemodynamics-and-outcomes-after-transcatheter-aortic-valve-implantation-with-the-self-expanding-corevalve-prosthesis
#9
Toby Rogers, Ron Waksman, J Kevin Harrison, G Michael Deeb, Angie Q Zhang, James B Hermiller, Jeffrey J Popma, Michael J Reardon
The impact of predilatation (Pre-Dil) on prosthesis hemodynamics and clinical outcomes of subjects who underwent transcatheter aortic valve implantation (TAVI) with a self-expanding prosthesis remains unclear. Two thousand seven hundred twenty-one subjects from the extreme- and high-risk CoreValve Continued Access Study (CAS) were included in the analysis. Subjects who underwent Pre-Dil before TAVI were compared with subjects who underwent TAVI without Pre-Dil. Clinical outcomes included death, stroke, myocardial infarction, acute kidney injury, and new permanent pacemaker implantation...
March 1, 2018: American Journal of Cardiology
https://www.readbyqxmd.com/read/29675905/transient-left-anterior-and-septal-fascicular-blocks-after-self-expandable-percutaneous-transcatheter-aortic-valve-implantation
#10
Andrés R Pérez-Riera, Raimundo Barbosa-Barros, Mariana F Cabral de Oliveira, Rodrigo Daminello-Raimundo, Luiz C de Abreu, Kjell Nikus
Transcatheter aortic valve implantation (TAVI) is indicated in severe symptomatic aortic stenosis, when there is intermediate-high surgical risk, or a condition considered inoperable, as in the case of "porcelain aorta" that could turn clamping or cannulation of the ascending aorta hazardous in open-heart surgery. Among the complications of this less invasive procedure, intraventricular conduction disorders subsequent to the procedure stand out. TAVI causes worsening of intraventricular dromotropic disorders in more than 75% of the cases, with the presence of preexisting right bundle branch block and first-degree atrioventricular block, deep prosthesis implant, male gender, size of the aortic annulus smaller than the prosthesis, and porcelain aorta being predictive of requirement for permanent pacemaker implant...
April 19, 2018: Annals of Noninvasive Electrocardiology
https://www.readbyqxmd.com/read/29667205/application-of-heparin-collagen-redv-selective-active-interface-on-eptfe-films-to-enhance-endothelialization-and-anticoagulation
#11
Yaping Shan, Bing Jia, Ming Ye, Hua Shen, Weicheng Chen, Huifeng Zhang
Expanded polytetrafluoroethylene (ePTFE) prosthetic valves have been widely used in clinical applications in Asian countries. However, these valves still have limits with regard to thrombosis, neointimal hyperplasia, restenosis, and valvar vegetation. The achievement of in situ endothelialization on implant materials is a promising way to overcome those limits. Here, heparin/collagen multilayers were fabricated on ePTFE films via a layer-by-layer (LBL) self-assembly technique, and then, the endothelial cell (EC) adhesive peptide sequence Arg-Glu-Asp-Val (REDV) was immobilized on the multilayers...
April 18, 2018: Artificial Organs
https://www.readbyqxmd.com/read/29667013/predictors-of-paravalvular-regurgitation-and-permanent-pacemaker-implantation-after-tavr-with-a-next-generation-self-expanding-device
#12
Victor Mauri, Florian Deuschl, Thomas Frohn, Niklas Schofer, Matthias Linder, Elmar Kuhn, Andreas Schaefer, Volker Rudolph, Navid Madershahian, Lenard Conradi, Tanja K Rudolph, Ulrich Schäfer
AIMS: To identify predictors of paravalvular regurgitation (PVR) and permanent pacemaker implantation (PPI) following TAVR with a next-generation self-expanding device. METHODS AND RESULTS: Device landing zone (DLZ) calcification, angiographic implantation depth, and baseline and procedural characteristics were analyzed in 212 patients being treated with the ACURATE neo aortic bioprosthesis. PVR was none/trace in 57.1% and ≥ mild in 42.9% (37% mild, 6% moderate)...
April 17, 2018: Clinical Research in Cardiology: Official Journal of the German Cardiac Society
https://www.readbyqxmd.com/read/29643916/antireflux-metal-stent-for-initial-treatment-of-malignant-distal-biliary-obstruction
#13
Shinichi Morita, Yasuaki Arai, Shunsuke Sugawara, Miyuki Sone, Yasunari Sakamoto, Takuji Okusaka, Shigetaka Yoshinaga, Yutaka Saito, Shuji Terai
Objectives: To compare the use of an antireflux metal stent (ARMS) with that of a conventional covered self-expandable metal stent (c-CSEMS) for initial stenting of malignant distal biliary obstruction (MDBO). Materials and Methods: We retrospectively investigated 59 consecutive patients with unresectable MDBO undergoing initial endoscopic biliary drainage. ARMS was used in 32 patients and c-CSEMS in 27. Technical success, functional success, complications, causes of recurrent biliary obstruction (RBO), time to RBO (TRBO), and reintervention were compared between the groups...
2018: Gastroenterology Research and Practice
https://www.readbyqxmd.com/read/29622986/clinical-utility-of-a-predictive-model-for-paravalvular-aortic-regurgitation-after-transcatheter-aortic-valve-implantation-with-a-self-expandable-prosthesis
#14
Ahmad E Mostafa, Gert Richardt, Mohamed Abdel-Wahab
Background: A predictive model for Paravalvular aortic regurgitation (PAR) integrating the left ventricular outflow tract-to-ascending aorta angle (LVOT-AO) and depth to the non-coronary cusp (NCC) after TAVI with CoreValve prosthesis (MCP) was retrospectively identified (2 × ∠LVOT-AO + [depth to NCC-10]2; cutoff = 50). However, the validity and clinical utility of this model remain unknown. Methods: A total of 100 patients (79.6 ± 7 years, mean EuroScore 24...
December 2017: The Egyptian heart journal: (EHJ): official bulletin of the Egyptian Society of Cardiology
https://www.readbyqxmd.com/read/29622157/delayed-coronary-obstruction-after-transcatheter-aortic-valve-replacement
#15
Richard J Jabbour, Akihito Tanaka, Ariel Finkelstein, Michael Mack, Corrado Tamburino, Nicolas Van Mieghem, Ole de Backer, Luca Testa, Pamela Gatto, Paola Purita, Zouhair Rahhab, Verena Veulemans, Anja Stundl, Marco Barbanti, Roberto Nerla, Jan Malte Sinning, Danny Dvir, Giuseppe Tarantini, Molly Szerlip, Werner Scholtz, Smita Scholtz, Didier Tchetche, Fausto Castriota, Christian Butter, Lars Søndergaard, Mohamed Abdel-Wahab, Horst Sievert, Ottavio Alfieri, John Webb, Josep Rodés-Cabau, Antonio Colombo, Azeem Latib
BACKGROUND: Delayed coronary obstruction (DCO) is an uncommon and barely reported complication following transcatheter aortic valve replacement (TAVR). OBJECTIVES: The aim of this study was to describe the incidence and pathophysiological features of DCO after TAVR, obtained from a large international multicenter registry. METHODS: Data were retrospectively collected from an international multicenter registry consisting of 18 centers between November 2005 and December 2016...
April 10, 2018: Journal of the American College of Cardiology
https://www.readbyqxmd.com/read/29608814/impact-of-high-implantation-on-functionality-of-self-expandable-bioprosthesis-during-the-short-and-long-term-outcome-of-patients-who-undergo-tavi-is-high-implantation-beneficial
#16
Manolis Vavuranakis, Maria Kariori, Lilly Scott, Konstantinos Kalogeras, Gerasimos Siasos, Dimitrios Vrachatis, Maria Lavda, Charalampos Kalantzis, Michael Vavuranakis, Evangelia Bei, Carmen-Maria Moldovan, Evangelos Oikonomou, Christodoulos Stefanadis, Dimitrios Tousoulis
AIM: High position of the self-expandable bioprosthesis CoreValve/Evolut R has been proved to affect immediate hemodynamics of the valve. Whether this may have any impact on long-term procedural outcome has not been defined yet. The purpose of this study is to assess whether the final position of aortic bioprosthesis affects its long-term functionality. METHOD: Consecutive patients (pts) who underwent successful TAVI procedure were evaluated and separated into two groups according to the implantation depth (ID); Group I: pts with 4mm<ID≤13 mm, Group II: pts with ID≤4mm...
April 2, 2018: Cardiovascular Therapeutics
https://www.readbyqxmd.com/read/29598854/utility-of-invasive-electrophysiology-studies-in-patients-with-severe-aortic-stenosis-undergoing-transcatheter-aortic-valve-implantation
#17
Toby Rogers, Mithun Devraj, Athanasios Thomaides, Arie Steinvil, Michael J Lipinski, Kyle D Buchanan, M Chadi Alraies, Edward Koifman, Jiaxiang Gai, Rebecca Torguson, Petros Okubagzi, Itsik Ben-Dor, Augusto D Pichard, Lowell F Satler, Ron Waksman
Permanent pacemaker (PPM) implantation remains common after transcatheter aortic valve implantation (TAVI). Invasive electrophysiology studies (EPSs) may reduce PPM implantation rates by identifying patients who do not require long-term pacing. At our institution, a new strategy in which patients with equivocal indications for pacing underwent EPSs to determine the need for PPM implantation was adopted. We compared baseline demographics, TAVI procedural details, and outcomes in patients without any conduction disturbance after TAVI, patients with new PPM implantation, and patients with EPS ± new PPM implantation...
March 1, 2018: American Journal of Cardiology
https://www.readbyqxmd.com/read/29590670/ct-adp-point-of-care-assay-predicts-30-day-paravalvular-aortic-regurgitation-and-bleeding-events-following-transcatheter-aortic-valve-replacement
#18
Marion Kibler, Benjamin Marchandot, Nathan Messas, Thibault Caspar, Flavien Vincent, Jean-Jacques Von Hunolstein, Lelia Grunebaum, Antje Reydel, Antoine Rauch, Ulun Crimizade, Michel Kindo, Tam Hoang Minh, Annie Trinh, Hélène Petit-Eisenmann, Fabien De Poli, Pierre Leddet, Laurence Jesel, Patrick Ohlmann, Sophie Susen, Eric Van Belle, Olivier Morel
BACKGROUND:  Paravalvular aortic regurgitation (PVAR) remains a frequent postprocedural concern following transcatheter aortic valve replacement (TAVR). Persistence of flow turbulence results in the cleavage of high-molecular-weight von Willebrand multimers, primary haemostasis dysfunction and may favour bleedings. Recent data have emphasized the value of a point-of-care measure of von Willebrand factor-dependent platelet function (closure time [CT] adenosine diphosphate [ADP]) in the monitoring of immediate PVAR...
March 28, 2018: Thrombosis and Haemostasis
https://www.readbyqxmd.com/read/29588739/predilatation-prior-to-transcatheter-aortic-valve-implantation-is-it-still-a-prerequisite
#19
Matteo Pagnesi, Luca Baldetti, Paolo Del Sole, Antonio Mangieri, Marco B Ancona, Damiano Regazzoli, Nicola Buzzatti, Francesco Giannini, Antonio Colombo, Azeem Latib
Predilatation has been historically considered a mandatory step before transcatheter aortic valve implantation (TAVI) since it facilitates valve crossing and prosthesis delivery, ensures optimal valve expansion and improves hemodynamic stability during valve deployment. However, as a result of procedural evolution over time, direct TAVI (without pre-implantation balloon aortic valvuloplasty) has emerged as an interesting option to simplify the procedure and to avoid potential valvuloplasty-related complications...
September 2017: Interventional Cardiology
https://www.readbyqxmd.com/read/29582947/-long-term-follow-up-of-transcatheter-self-expandable-aortic-valve-implantation
#20
Shmuel Chen, Vicky Zenios, Dan Gilon, David Planer, Ronen Beeri, Chaim Lotan, Haim D Danenberg
INTRODUCTION: Aortic stenosis is the most common significant valvular disease in the western world. These patients are treated operatively unless they are at high operative risk or inoperable. During the last decade an alternative approach has evolved - transcatheter aortic valve implantation (TAVI). This method was shown to be at least as effective and safe as the operative one. However, very little data exists on long term follow-up (5 years and above), especially regarding valve durability and patient survival...
March 2018: Harefuah
keyword
keyword
14712
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"