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https://www.readbyqxmd.com/read/28728867/finite-element-analysis-of-tavi-impact-of-native-aortic-root-computational-modeling-strategies-on-simulation-outcomes
#1
Alice Finotello, Simone Morganti, Ferdinando Auricchio
In the last few years, several studies, each with different aim and modeling detail, have been proposed to investigate transcatheter aortic valve implantation (TAVI) with finite elements. The present work focuses on the patient-specific finite element modeling of the aortic valve complex. In particular, we aim at investigating how different modeling strategies in terms of material models/properties and discretization procedures can impact analysis results. Four different choices both for the mesh size (from  20 k elements to  200 k elements) and for the material model (from rigid to hyperelastic anisotropic) are considered...
July 17, 2017: Medical Engineering & Physics
https://www.readbyqxmd.com/read/28714522/factors-associated-with-safe-early-discharge-after-trans-catheter-aortic-valve-implantation
#2
Omar Aldalati, Friedon Keshavarzi, Amit Kaura, Jonathan Byrne, Mehdi Eskandari, Ranjit Deshpande, Mark Monaghan, Olaf Wendler, Rafal Dworakowski, Philip Maccarthy
BACKGROUND: As transcatheter aortic valve replacement (TAVI) becomes more straightforward, a larger proportion of patients will be well enough to be discharged early. This study sought to characterise the clinical features that allowed patients to be discharged early after TAVI and to evaluate the safety of an early discharge policy. METHODS: All patients undergoing TAVI at the above cited centre from August 2007 to March 2015 were included in this study. Baseline characteristics, in-hospital outcomes, re-admissions and mortality were compared...
July 17, 2017: Cardiology Journal
https://www.readbyqxmd.com/read/28706126/transfemoral-transcatheter-aortic-valve-in-valve-implantation-for-aortic-valve-bioprosthesis-failure-with-the-fully-repositionable-and-retrievable-lotus-valve-a-single-center-experience
#3
Neil Ruparelia, Katharine Thomas, James D Newton, Kate Grebenik, Amar Keiralla, George Krasopoulos, Rana Sayeed, Adrian P Banning, Rajesh K Kharbanda
OBJECTIVE: To report a first case series of the Lotus valve (Boston Scientific) for the treatment of surgical aortic bioprosthesis failure. BACKGROUND: Valve-in-valve (VIV) transcatheter aortic valve implantation (TAVI) is an established management option for surgical aortic bioprosthesis failure. Although TAVI has proven efficacious, complications relating to suboptimal valve implantation have been reported in approximately 5% of patients. The Lotus valve is fully repositionable and retrievable, and therefore enables complete assessment of valve function prior to definitive deployment...
July 15, 2017: Journal of Invasive Cardiology
https://www.readbyqxmd.com/read/28705072/short-and-long-term-results-after-endovascular-management-of-vascular-complications-during-transfemoral-aortic-valve-implantation
#4
Thomas Heger, Stefanie Strauß, Erwin Blessing, Martin Andrassy, Christian Erbel, Oliver J Müller, Emmanuel Chorianopoulos, Sven Pleger, Florian Leuschner, Grigorios Korosoglou, Raffi Bekeredjian, Hugo A Katus, Britta Vogel
Background Vascular injury and access site complications in the contemporary setting of transcatheter aortic valve implantation (TAVI) are known to be associated with increased mortality and morbidity. The aim of our study was to analyse the feasibility and safety of percutaneous treatment of such vascular complications using a stent graft. Methods Between January 2010 and April 2013, 36 TAVI patients developed severe access site complications and underwent subsequent interventional treatment with a covered stent...
July 14, 2017: Acta Cardiologica
https://www.readbyqxmd.com/read/28702479/image-quality-and-contrast-agent-exposure-in-cardiac-computed-tomography-angiography-prior-to-transcatheter-aortic-valve-implantation-procedures-using-different-acquisition-protocols
#5
Nina P Hofmann, Moritz Schuetz, Raffi Bekeredjian, Sven Pleger, Emanuel Chorianopoulos, Sorin Giusca, Florian André, Gitsios Gitsioudis, Christopher Schlett, Hans-Ulrich Kauczor, Hugo A Katus, Grigorios Korosoglou
BACKGROUND: ECG-gated cardiac computed tomography angiography (CCTA) has found widespread use for prosthesis sizing before transcatheter aortic valve implantation (TAVI). However, still little data exists on the optimal scan-strategy in such patients. We hypothesized that prospectively triggered CCTA can enable the visualization of aortic valve structures and peripheral arteries with lower radiation and contrast agent exposure in patients considered for TAVI compared to retrospectively gated protocols...
2017: European Journal of Radiology Open
https://www.readbyqxmd.com/read/28700016/primary-mitral-valve-regurgitation-outcome-in-patients-with-severe-aortic-stenosis-1-year-after-transcatheter-aortic-valve-implantation-echocardiographic-evaluation
#6
Thiago Marinho Florentino, David Le Bihan, Alexandre Antonio Cunha Abizaid, Alexandre Vianna Cedro, Amably Pessoa Corrêa, Alexandre Roginski Mendes Dos Santos, Alexandre Costa Souza, Tiago Costa Bignoto, José Eduardo Moraes Rego Sousa, Amanda Guerra de Moraes Rego Sousa
Background: Mitral valve regurgitation (MR), present in up to 74% of the patients with severe aortic stenosis (AS), can be a negative prognostic factor when moderate or severe. The outcome of MR after percutaneous transcatheter aortic valve implantation (TAVI) and predictors associated with that outcome have not been well established in the literature. Objective: To assess the outcome of primary MR in patients submitted to TAVI and to identify associated factors...
July 10, 2017: Arquivos Brasileiros de Cardiologia
https://www.readbyqxmd.com/read/28691911/a-novel-synchronized-diastolic-injection-method-to-reduce-contrast-volume-during-aortography-for-aortic-regurgitation-assessment-in-vitro-experiment-of-a-transcatheter-heart-valve-model
#7
Yosuke Miyazaki, Mohammad Abdelghani, Ellen S de Boer, Jean-Paul Aben, Math van Sloun, Todd Suchecki, Marcel van 't Veer, Carlos Collet, Taku Asano, Yuki Katagiri, Erhan Tenekecioglu, Osama I I Soliman, Yoshinobu Onuma, Robbert de Winter, Pim Tonino, Frans N van de Vosse, Marcel C M Rutten, Patrick W Serruys
AIMS: In the minimalist transcatheter aortic valve implantation (TAVI) era, the usage of transesophageal echocardiography becomes restricted. Conversely, aortography gains clinical ground in quantifying prosthetic valve regurgitation (PVR) during the procedure. In a mock circulation system, we sought to compare the contrast volume required and the accuracy of aortographic videodensitometric PVR assessment using a synchronized diastolic and standard (non-synchronized) injection aortography...
July 11, 2017: EuroIntervention
https://www.readbyqxmd.com/read/28690021/transcatheter-aortic-valve-implantation-in-nonagenarians-procedural-outcome-and-mid-term-results
#8
Smita Scholtz, Zisis Dimitriadis, Marios Vlachojannis, Cornelia Piper, Dieter Horstkotte, Marcus Wiemer, Jan Gummert, Buntaro Fujita, Michael Benzinger, Stephan M Ensminger, Jochen Börgermann, Werner Scholtz
BACKGROUND: For nonagenarians with symptomatic severe aortic stenosis transcatheter aortic valve implantation (TAVI) has become a feasible therapeutic option. Therefore, the aim of this study was to evaluate the procedural outcomes and mid-term follow-up in this patient group and compare this to octogenarians. METHODS: From 1359 patients who underwent TAVI at our institution between March 2009 and February 2016, 82 patients were nonagenarians and 912 were octogenarians...
June 15, 2017: Heart, Lung & Circulation
https://www.readbyqxmd.com/read/28689484/transcatheter-aortic-valve-implantation-as-a-bailout-procedure-for-acute-aortic-valve-regurgitation-during-endovascular-arch-repair
#9
Adrien Hertault, Rachel E Clough, Thomas Modine, Jean-Luc Auffray, Mohamad Koussa, Stéphan Haulon
PURPOSE: To report emergent transcatheter aortic valve implantation (TAVI) to treat acute severe aortic regurgitation caused by valve cusp dysfunction following proximal migration of an endograft implanted in the ascending aorta during endovascular arch repair. CASE REPORT: A 65-year-old man had been previously treated with thoracic and fenestrated endografts in a 2-stage procedure for a chronic type B dissection. At 2-year follow-up, aneurysmal evolution of the distal arch led to development of a proximal type Ia endoleak...
July 1, 2017: Journal of Endovascular Therapy
https://www.readbyqxmd.com/read/28688833/balloon-aortic-valvuloplasty-in-the-transcatheter-valve-era-single-centre-indications-and-early-safety-data-in-a-high-risk-population
#10
Thomas J Ford, Katherine Nguyen, Joseph Brassil, Virag Kushwaha, Daniel Friedman, Roger Allan, Mark Pitney, Nigel Jepson
BACKGROUND: The introduction of transcatheter aortic valve implantation (TAVI) has generated a renewed interest in the techniques available to treat high-risk patients with severe aortic stenosis (AS). We report our single centre experience with balloon aortic valvuloplasty (BAV) focussing on indications, procedural success and 30-day outcomes. METHODS: We retrospectively reviewed all patients that underwent BAV procedures at our institution between August 2012 and August 2014...
June 2, 2017: Heart, Lung & Circulation
https://www.readbyqxmd.com/read/28682324/matching-patients-with-the-ever-expanding-range-of-tavi-devices
#11
REVIEW
Brandon M Jones, Amar Krishnaswamy, E Murat Tuzcu, Stephanie Mick, Wael A Jaber, Lars G Svensson, Samir R Kapadia
Transcatheter aortic valve implantation (TAVI) has become a widely accepted strategy for the treatment of aortic stenosis in patients at intermediate, high, or prohibitive surgical risk. After >1 decade of innovation and clinical trial experience, the available technology for TAVI has grown enormously, and now includes a myriad of vascular access approaches and innovative valve designs. As a result, the range of patients who can benefit from these advances continues to grow rapidly. Furthermore, given the improved safety profile and clinical success of current-generation devices in randomized trials, the use of TAVI among even low-risk populations is justified in current trials...
July 6, 2017: Nature Reviews. Cardiology
https://www.readbyqxmd.com/read/28676065/prior-balloon-valvuloplasty-versus-direct-transcatheter-aortic-valve-implantation-directavi-study-protocol-for-a-randomized-controlled-trial
#12
Florence Leclercq, Pierre Robert, Jessica Labour, Benoit Lattuca, Mariama Akodad, Jean-Christophe Macia, Richard Gervasoni, Francois Roubille, Thomas Gandet, Laurent Schmutz, Erika Nogue, Nicolas Nagot, Bernard Albat, Guillaume Cayla
BACKGROUND: Balloon predilatation of the aortic valve has been regarded as an essential step during the transcatheter aortic valve implantation (TAVI) procedure. However, recent evidence has suggested that aortic valvuloplasty may cause complications and that high success rates may be obtained without prior dilatation of the valve. We hypothesize that TAVI performed without predilatation of the aortic valve and using new-generation balloon-expandable transcatheter heart valves is associated with a better net clinical benefit than TAVI performed with predilatation...
July 4, 2017: Trials
https://www.readbyqxmd.com/read/28668555/the-obesity-paradox-an-analysis-of-pre-procedure-weight-trajectory-on-survival-outcomes-in-patients-undergoing-transcatheter-aortic-valve-implantation
#13
Rodney De Palma, John Ivarsson, Kari Feldt, Nawzad Saleh, Andreas Ruck, Rikard Linder, Magnus Settergren
INTRODUCTION: Increased mortality has been observed in those with cardiovascular diseases who are of normal body mass index (BMI) compared to the overweight and the obese. A similar association has been demonstrated in patients undergoing transcatheter aortic valve (TAVI) implantation. However, it still remains unclear whether low or normal BMI itself is unfavourable or whether this is merely a reflection of cardiac cachexia due to severe aortic stenosis. The hypothesis for the study was that weight change prior to TAVI may be associated with increased mortality following the procedure...
June 28, 2017: Obesity Research & Clinical Practice
https://www.readbyqxmd.com/read/28668263/meta-analysis-of-predictors-of-early-severe-bleeding-in-patients-who-underwent-transcatheter-aortic-valve-implantation
#14
Yinghao Sun, Xianbao Liu, Zexin Chen, Jiaqi Fan, Jubo Jiang, Yuxin He, Qifeng Zhu, Po Hu, Lihan Wang, Qiyuan Xu, Xiaoping Lin, Jian'an Wang
Severe bleeding (SB) in patients who underwent transcatheter aortic valve implantation (TAVI) could be fatal. Although multiple independent predictors of bleeding post-TAVI have been identified, the definitions of bleeding and predictors vary across studies. This study aimed to provide summary effect estimates for predictors of SB within 30 days post-TAVI. A systematic review of studies that reported the incidence of bleeding post-TAVI with raw data for predictors of interest was performed. Data on characteristics of study, patient, and procedure were extracted...
May 30, 2017: American Journal of Cardiology
https://www.readbyqxmd.com/read/28668170/aortic-stenosis-indications-and-results-of-percutaneous-aortic-valve-implantation-tavi
#15
L Salido Tahoces, R A Hernández Antolín, J L Zamorano Gómez
Aortic stenosis (AS) is the most common valvular heart disease in developed countries. Its prevalence increases progressively due the aging of the population. Transcatheter aortic valve implantation (TAVI), however, has revolutionised the treatment of AS. With the current data, we can confirm that TAVI is the treatment of choice for patients with severe symptomatic AS considered inoperable or with high surgical risk. In recent years, the use of TAVI has grown exponentially and is spreading to patients of intermediate surgical risk due to the procedure's good results, the reduced number of complications and the low incidence of prosthetic degeneration...
June 28, 2017: Revista Clínica Española
https://www.readbyqxmd.com/read/28666930/delirium-following-transcatheter-aortic-valve-replacement-national-inpatient-sample-analysis
#16
Amritha Soundhar, Reshmi Udesh, Amol Mehta, John Schindler, Vinodh Jeevanantham, Thomas Gleason, Parthasarathy D Thirumala
OBJECTIVE: To investigate the risk factors for postoperative delirium and the impact of delirium on mortality and morbidity following transcatheter aortic valve implantation (TAVI). DESIGN: Patients who underwent TAVI were identified using the International Classification of Diseases, 9th revision clinical modification codes from the National Inpatient Sample database. Statistical analysis of preoperative and perioperative risk factors was done to identify the independent risk factors for delirium after TAVI...
March 16, 2017: Journal of Cardiothoracic and Vascular Anesthesia
https://www.readbyqxmd.com/read/28662806/temporal-trends-in-transcatheter-aortic%C3%A2-valve-replacement-in-france-france-2-to-france-tavi
#17
Vincent Auffret, Thierry Lefevre, Eric Van Belle, Hélène Eltchaninoff, Bernard Iung, René Koning, Pascal Motreff, Pascal Leprince, Jean Philippe Verhoye, Thibaut Manigold, Geraud Souteyrand, Dominique Boulmier, Patrick Joly, Frédéric Pinaud, Dominique Himbert, Jean Philippe Collet, Gilles Rioufol, Said Ghostine, Olivier Bar, Alain Dibie, Didier Champagnac, Lionel Leroux, Frédéric Collet, Emmanuel Teiger, Olivier Darremont, Thierry Folliguet, Florence Leclercq, Thibault Lhermusier, Patrick Olhmann, Bruno Huret, Luc Lorgis, Laurent Drogoul, Bernard Bertrand, Christian Spaulding, Laurent Quilliet, Thomas Cuisset, Maxence Delomez, Farzin Beygui, Jean-Philippe Claudel, Alain Hepp, Arnaud Jegou, Antoine Gommeaux, Anfani Mirode, Luc Christiaens, Charles Christophe, Claude Cassat, Damien Metz, Lionel Mangin, Karl Isaaz, Laurent Jacquemin, Philippe Guyon, Christophe Pouillot, Serge Makowski, Vincent Bataille, Josep Rodés-Cabau, Martine Gilard, Hervé Le Breton
BACKGROUND: Transcatheter aortic valve replacement (TAVR) is standard therapy for patients with severe aortic stenosis who are at high surgical risk. However, national data regarding procedural characteristics and clinical outcomes over time are limited. OBJECTIVES: The aim of this study was to assess nationwide performance trends and clinical outcomes of TAVR during a 6-year period. METHODS: TAVRs performed in 48 centers across France between January 2013 and December 2015 were prospectively included in the FRANCE TAVI (French Transcatheter Aortic Valve Implantation) registry...
July 4, 2017: Journal of the American College of Cardiology
https://www.readbyqxmd.com/read/28658982/cerebral-protection-devices-for-transcatheter-aortic-valve-replacement
#18
Yash Jobanputra, Brandon M Jones, Divyanshu Mohananey, Benish Fatima, Krishna Kandregula, Samir R Kapadia
Stroke is a devastating, potential complication of any cardiovascular procedure including transcatheter aortic valve implantation (TAVI). Even clinically silent lesions as detected by magnetic resonance imaging have been associated with poor long-term cognitive outcomes. As a result, extensive efforts have been focused on developing stroke preventative strategies including the development of novel embolic protection devices. These devices aim to reduce this risk by capturing or deflecting emboli away from the cerebral circulation...
July 13, 2017: Expert Review of Medical Devices
https://www.readbyqxmd.com/read/28652630/-sici-gise-community-campania-survey-donna-tavi-incanta-perioperative-and-short-term-outcome-of-transcatheter-aortic-valve-implantation-in-women
#19
Tiziana Attisano, Angelo Silverio, Emilio Di Lorenzo, Tullio Tesorio, Domenico Di Girolamo, Paolo Golino, Arturo Giordano, Giuseppe Valva, Giovanni Esposito, Maurizio Cappelli Bigazzi, Carlo Briguori, Ida Monteforte, Giovanni Dialetto, Paolo Rubino, Francesco Vigorito, Pietro Giudice, Ciro Mauro
BACKGROUND: Nowadays the prognostic role of gender as a relevant factor after transcatheter aortic valve implantation (TAVI) is still unfair, since available data in the literature are few and uneven. The aim of this survey was to collect acute and 30-day safety and efficacy clinical data in high- and intermediate-risk women, who underwent TAVI with new-generation devices, in the Campania Region. METHODS: All medium and high-volume TAVI centers in Campania have been invited to fulfill an online, ad-hoc questionnaire, collecting pre-, peri- and post-procedural data concerning female patients, treated between January and December 2016...
June 2017: Giornale Italiano di Cardiologia
https://www.readbyqxmd.com/read/28652629/-observant-ii-observational-study-of-effectiveness-of-transcatheter-aortic-valve-implantation-with-new-generation-devices-for-severe-aortic-stenosis-treatment-study-protocol
#20
Fulvia Seccareccia, Giuseppe Tarantini, Francesco Bedogni, Sergio Berti, Gennaro Santoro, Corrado Tamburino, Gian Paolo Ussia, Marco Barbanti, Massimo Baiocchi, Marco Ranucci, Paola D'Errigo, Stefano Rosato, Giuseppe Musumeci
BACKGROUND: The rapid spread of transcatheter aortic valve implantation (TAVI) for the treatment of severe symptomatic aortic stenosis in the last decade in Italy has led to a gradually increasing use of TAVI procedures also in patients potentially eligible for aortic valve replacement (AVR). For this subset of patients, the OBSERVANT study (2011-2012) evaluated the short- and medium term outcome of TAVI vs AVR, at least for the first generations of TAVI devices, but failed to gather information on all the technological innovations occurred in recent years...
June 2017: Giornale Italiano di Cardiologia
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