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https://www.readbyqxmd.com/read/29049819/treatment-of-a-degenerated-sutureless-sorin-perceval%C3%A2-valve-using-an-edwards-sapien-3
#1
Norman Mangner, David Holzhey, Martin Misfeld, Axel Linke
Valve-in-valve implantation is an alternative to reoperation for patients with degenerated bioprostheses. This case report presents a 75-year-old woman presenting with worsening dyspnoea according New York Heart Association (NYHA) Class III after she had received a Sorin Perceval® S sutureless valve due to severe aortic valve stenosis 5 years ago. Echocardiography revealed a degenerated Perceval valve with severe valvular aortic regurgitation and stenosis. After exclusion of acute infective endocarditis, an Edwards SAPIEN 3 was implanted leading to an immediate haemodynamic improvement...
October 10, 2017: Interactive Cardiovascular and Thoracic Surgery
https://www.readbyqxmd.com/read/29049662/flexible-mechanoprosthesis-made-from-woven-ultra-high-molecular-weight-polyethylene-fibres-proof-of-concept-in-a-chronic-sheep-model
#2
Amir Basir, Remco B Grobben, Maarten Jan Cramer, Joost A van Herwaarden, Aryan Vink, Gerard Pasterkamp, Jolanda Kluin, Paul F Gründeman
OBJECTIVES: Ultra-high-molecular-weight polyethylene (UHMWPE) fibres are flexible, have high tensile strength, and platelet and bacterial adhesion is low. Therefore, UHMWPE may overcome limitations of current mechanical valves and bioprostheses. In this study, the biocompatibility and functionality of prototype handmade stented valves from woven UHMWPE (U-valve) was assessed in a chronic sheep model with acetylsalicylic acid monotherapy. METHODS: Native pulmonary valves of 23 sheep were replaced by U-valves ( n  = 18) or Perimount bovine bioprostheses (reference group, n  = 5)...
July 26, 2017: Interactive Cardiovascular and Thoracic Surgery
https://www.readbyqxmd.com/read/29049564/a-new-technique-to-implant-a-transcatheter-inflatable-fully-repositionable-prosthesis-in-aortic-stenosis-with-severe-asymmetric-calcification
#3
Hasan Bushnaq, Christoph Raspé, Alper Öner, Seyrani Yücel, Hüseyin Ince, Sebastian-Patrick Sommer
OBJECTIVES: In contrast to stented transcatheter aortic valves, the Direct Flow Medical (DFM) valve is a stentless bovine aortic bioprosthesis mounted in a non-metallic inflatable frame. Hence, severe asymmetric annular calcification may result in residually elevated transaortic pressure gradients after DFM implantation. We present a novel intraprocedural dilatation (IDIL) technique for successful implantation of the DFM valve in the presence of complex annular calcification. METHODS: Between January 2014 and May 2015, 55 patients underwent DFM valve-based transcatheter aortic valve implantation at our institution...
August 1, 2017: Interactive Cardiovascular and Thoracic Surgery
https://www.readbyqxmd.com/read/29049524/the-entangled-stent-a-preventable-cause-of-paravalvular-leak-of-the-perceval-bioprosthesis
#4
Steffen Pfeiffer, Manuel Wilbring, Utz Kappert, Giuseppe Santarpino
Despite the excellent early performance of the Perceval sutureless valve, there have been recent reports of stent infolding, followed by paravalvular leak that was linked to valve oversizing. The purpose of this study was to review published reports by assessing photographic and radiological images. An in vitro study was also conducted with stent twisting that may occur during the collapse of the valve, termed 'stent entanglement', demonstrating consecutive successful valve collapse and implantation. This result has led us to hypothesize that infolding is due to a number of triggers, e...
July 26, 2017: Interactive Cardiovascular and Thoracic Surgery
https://www.readbyqxmd.com/read/29034018/bailout-endovascular-stent-grafting-for-an-ascending-aortic-pseudoaneurysm-using-an-infrarenal-aortic-extension-cuff
#5
Yasushi Matsumoto, Fuminori Kasashima, Kengo Kawakami, Masamitsu Endo
We report successful thoracic endovascular repair of a pseudoaneurysm rupture in the ascending aorta using infrarenal endovascular devices after an aortic valve replacement. Complete exclusion of the pseudoaneurysm was achieved with no endoleak or postoperative complications. Despite limitations of the current technology, this endovascular technique was a relatively less invasive, feasible lifesaving surgical option for the repair of a pseudoaneurysm of the ascending aorta with a diameter ≤32 mm.
March 24, 2017: Annals of Vascular Diseases
https://www.readbyqxmd.com/read/29032806/multidetector-computed-tomography-evaluation-of-candidates-for-transcatheter-aortic-valve-implantation
#6
M E Guillén Subirán, L H Mendoza, E Ángulo Hervías, D Yagüe Romeo, M E Núñez Motilva
In transcatheter aortic valve implantation (TAVI), a biologic valve mounted in a stent is implanted without removing the native valve. This procedure was first done in humans by Alain Cribier in 2002 and was included in clinical guidelines after the multicenter PARTNER (Placement of AoRtic TraNscathetER) randomized clinical trial, which showed that TAVI obtained better outcomes than conservative medical treatment and is an alternative to surgery in patients with high surgical risk. Candidates for TAVI must be assessed to determine whether the procedure is feasible, because TAVI is not ideal for all patients who are considered inoperable...
October 9, 2017: Radiología
https://www.readbyqxmd.com/read/29031706/early-outcomes-with-rapid-deployment-vs-stented-biological-valves-a-propensity-match-analysis
#7
Anthony Nguyen, Louis-Mathieu Stevens, Denis Bouchard, Philippe Demers, Louis P Perrault, Michel Carrier
Rapid-deployment valves could potentially reduce cross-clamping time and cardiopulmonary bypass time in complex combined procedures and facilitate minimally invasive surgery. This propensity-matched study compared clinical and echographic outcomes between patients undergoing rapid-deployment aortic valve replacement (RDAVR) compared with stented biological aortic valve replacement (SAVR), with or without concomitant procedures. Between 2012 and 2015, 61 consecutive patients (age 70 ± 7 years, European System for Cardiac Operative Risk Evaluation [EuroSCORE] II 2...
September 8, 2017: Seminars in Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/29031049/heart-valve-scaffold-fabrication-bioinspired-control-of-macro-scale-morphology-mechanics-and-micro-structure
#8
Antonio D'Amore, Samuel K Luketich, Giuseppe M Raffa, Salim Olia, Giorgio Menallo, Antonino Mazzola, Flavio D'Accardi, Tamir Grunberg, Xinzhu Gu, Michele Pilato, Marina V Kameneva, Vinay Badhwar, William R Wagner
Valvular heart disease is currently treated with mechanical valves, which benefit from longevity, but are burdened by chronic anticoagulation therapy, or with bioprosthetic valves, which have reduced thromboembolic risk, but limited durability. Tissue engineered heart valves have been proposed to resolve these issues by implanting a scaffold that is replaced by endogenous growth, leaving autologous, functional leaflets that would putatively eliminate the need for anticoagulation and avoid calcification. Despite the diversity in fabrication strategies and encouraging results in large animal models, control over engineered valve structure-function remains at best partial...
October 6, 2017: Biomaterials
https://www.readbyqxmd.com/read/29023351/rapid-deployment-aortic-valves-deliver-superior-hemodynamic-performance-in-vitro
#9
Lisong Ai, Harvey Chen, Virginia Lin, Vinayak N Bapat
OBJECTIVE: Clinical studies have demonstrated excellent hemodynamic performance of rapid deployment aortic valves; however, few studies have directly compared the performance of these valves with conventional bioprosthetic valves. Thus, the hemodynamic function of the EDWARDS INTUITY valve (rapid deployment valve) was compared with the Edwards Magna Ease valve in vitro (Edwards Lifesciences Corp, Irvine, CA USA). METHODS: Elastomeric material was used to create an aortic root model that included a left ventricular outflow tract and aortic annulus...
September 2017: Innovations: Technology and Techniques in Cardiothoracic and Vascular Surgery
https://www.readbyqxmd.com/read/29020413/incidence-predictors-and-clinical-outcomes-of-coronary-obstruction-following-transcatheter-aortic-valve-replacement-for-degenerative-bioprosthetic-surgical-valves-insights-from-the-vivid-registry
#10
Henrique B Ribeiro, Josep Rodés-Cabau, Philipp Blanke, Jonathon Leipsic, Jong Kwan Park, Vinayak Bapat, Raj Makkar, Matheus Simonato, Marco Barbanti, Joachim Schofer, Sabine Bleiziffer, Azeem Latib, David Hildick-Smith, Patrizia Presbitero, Stephan Windecker, Massimo Napodano, Alfredo G Cerillo, Mohamed Abdel-Wahab, Didier Tchetche, Claudia Fiorina, Jan-Malte Sinning, Mauricio G Cohen, Mayra E Guerrero, Brian Whisenant, Fabian Nietlispach, José Honório Palma, Luis Nombela-Franco, Arend de Weger, Malek Kass, Fabio Sandoli de Brito, Pedro A Lemos, Ran Kornowski, John Webb, Danny Dvir
Aims: There are limited data on coronary obstruction following transcatheter valve-in-valve (ViV) implantation inside failed aortic bioprostheses. The objectives of this study were to determine the incidence, predictors, and clinical outcomes of coronary obstruction in transcatheter ViV procedures. Methods and results: A total of 1612 aortic procedures from the Valve-in-Valve International Data (VIVID) Registry were evaluated. Data were subject to centralized blinded corelab computed tomography (CT) analysis in a subset of patients...
August 14, 2017: European Heart Journal
https://www.readbyqxmd.com/read/28974283/is-mesocardia-with-left-sided-caval-vein-draining-to-coronary-sinus-a-contraindication-for-a-percutaneous-pulmonary-valve-implantation-a-case-description
#11
Marinos Kantzis, Christoph M Happel, Nikolaus A Haas
Introduction Although the right jugular vein approach for percutaneous pulmonary valve implantation is well described, there are no reports that describe a percutaneous pulmonary valve implantation through a left superior caval vein to coronary sinus pathway. Case A 14-year-old female with tetralogy of Fallot, mesocardia, left superior caval vein draining into the coronary sinus, and hemiazygos continuation of the inferior caval vein underwent ventricular septal defect closure, with homograft insertion from the right ventricle to the pulmonary artery, patch augmentation of the left pulmonary artery, and creation of an atrial communication...
October 4, 2017: Cardiology in the Young
https://www.readbyqxmd.com/read/28963863/hemocompatibility-of-hyaluronan-enhanced-linear-low-density-polyethylene-for-blood-contacting-applications
#12
Rachael Simon-Walker, John Cavicchia, David A Prawel, Lakshmi Prasad Dasi, Susan P James, Ketul C Popat
Despite their overall success, different blood-contacting medical devices such as heart valves, stents, and so forth, are still plagued with hemocompatibility issues which often result in the need for subsequent replacement and/or life-long anticoagulation therapy. Consequently, there is a significant interest in developing biomaterials that can address these issues. Polymeric-based materials have been proposed for use in many applications due to their ability to be finely tuned through manufacturing and surface modification to enhance hemocompatibility...
September 30, 2017: Journal of Biomedical Materials Research. Part B, Applied Biomaterials
https://www.readbyqxmd.com/read/28948487/how-to-treat-aortic-graft-infection-with-a-special-emphasis-on-xeno-pericardial-aortic-tube-grafts
#13
Thierry Carrel, Lars Englberger, Jürg Schmidli
Infection of a vascular prosthesis or endovascular stent-graft is probably the most serious complication that may occur after implantation and dramatically affects the patient's outcome. The most common etiology of graft and/or prosthetic valve infection is usually wound-related infection, followed by seeding from distant infection sites (lung, urinary tract). Surgical treatment is almost always required but even after surgery, morbidity can be significant. Operative procedure must be tailored according to the individual patient and to the experience of the surgical team...
September 25, 2017: General Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/28947226/outcomes-of-thoracic-endovascular-aortic-repair-in-adult-coarctation-patients
#14
Salim Lala, Salvatore T Scali, Robert J Feezor, Satish Chandrekashar, Kristina A Giles, Javairiah Fatima, Scott A Berceli, Martin R Back, Thomas S Huber, Thomas M Beaver, Adam W Beck
BACKGROUND: Aortic coarctation (AC) is most commonly identified in pediatric patients; however, adults can present with late sequelae of untreated coarctation or complications of prior open repair. To date, there are limited data about the role of thoracic endovascular aortic repair (TEVAR) in this group of patients. The purpose of this analysis was to describe our experience with management of adult coarctation patients using TEVAR. METHODS: All TEVAR patients treated for primary coarctation or late sequelae of previous open repair (eg, pseudoaneurysm, recurrent coarctation or anastomotic stenosis related to index open coarctation repair) were reviewed...
September 22, 2017: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/28944581/a-new-one-step-procedure-for-pulmonary-valve-implantation-of-the-melody-valve-simultaneous-prestenting-and-valve-implantation
#15
Younes Boudjemline
OBJECTIVES: To describe a new modification, the one-step procedure, that allows interventionists to pre-stent and implant a Melody valve simultaneously. BACKGROUND: Percutaneous pulmonary valve implantation (PPVI) is the standard of care for managing patients with dysfunctional right ventricular outflow tract, and the approach is standardized. METHODS: Patients undergoing PPVI using the one-step procedure were identified in our database. Procedural data and radiation exposure were compared to those in a matched group of patients who underwent PPVI using the conventional two-step procedure...
September 25, 2017: Catheterization and Cardiovascular Interventions
https://www.readbyqxmd.com/read/28941149/management-of-left-main-coronary-artery-obstruction-after-transcatheter-aortic-valve-replacement-utilizing-a-periscope-approach
#16
Todd Drexel, Gregory Helmer, Santiago Garcia, Ganesh Raveendran
Coronary obstruction is a rare but potentially fatal complication of transcatheter aortic valve replacement (TAVR). It can result from native leaflet or stent frame obstruction of the coronary ostia. There are reports detailing the difficulty of percutaneous coronary intervention following TAVR, but none that describe a periscope approach to access the left main ostia in the presence of a braided nitinol frame. This report describes an alternative approach to access a coronary artery when the valve stent struts are prohibitive to equipment delivery...
September 20, 2017: Catheterization and Cardiovascular Interventions
https://www.readbyqxmd.com/read/28940794/percutaneous-pulmonary-valve-implantation-for-reconstruction-of-a-patch-repaired-right-ventricular-outflow-tract
#17
Anoosh Esmaeili, Simone Bollmann, Markus Khalil, Roberta De Rosa, Stephan Fichtlscherer, Hakan Akintuerk, Dietmar Schranz
Percutaneous pulmonary valve implantation (PPVI) is nowadays an accepted treatment option to repair post-surgical conduit dysfunction of the right ventricular outflow tract (RVOT). In addition, many patients need a pulmonary valve to reconstruct a hemodynamically incompetent native or conduit free outflow tract. Based on our experience with percutaneous stent-valve placement in a cohort of 125 patients, we report here transvenous reconstruction of a conduit-free, patch repaired outflow tract by utilizing balloon-expandable stent-valves in 23 patients with a median age of 22 years (5-60 years)...
September 20, 2017: Journal of Interventional Cardiology
https://www.readbyqxmd.com/read/28935328/valve-in-valve-transcatheter-aortic-valve-implantation-a-novel-approach-to-treat-paravalvular-leak
#18
Pranav Loyalka, Kelsey B Montgomery, Tom C Nguyen, Richard W Smalling, Melissa Howe, Keshava Rajagopal
Enlarging or "cracking" a surgical stented bioprosthetic valve during valve-in-valve transcatheter aortic valve implantation (TAVI) increases orifice area, reducing transvalvular energy losses. We demonstrate that TAVI with valve cracking can be used to treat paravalvular leak (PVL) while providing optimal aortic valve physiology. A 61-year-old woman with a history of aortic valve replacement with a stented bioprosthesis presented with heart failure. Transthoracic echocardiography revealed severe prosthetic aortic valve stenosis with PVL and severe regurgitation...
October 2017: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/28928615/stenting-of-right-ventricular-outflow-tract-in-tetralogy-of-fallot-with-subarterial-ventricular-septal-defect-a-word-of-caution
#19
Jonathan Lee, Sivakumar Sivalingam, Mazeni Alwi
We report a case of Tetralogy of Fallot with severe cyanosis who underwent a successful right ventricular outflow tract stenting. Follow-up echocardiography revealed moderate aortic regurgitation due to the impingement of the stent on the aortic valve. The patient underwent successful surgical correction at which time the stent was removed completely with a resolution of the aortic regurgitation.
September 2017: Annals of Pediatric Cardiology
https://www.readbyqxmd.com/read/28923785/transcatheter-mitral-valve-replacement-of-navigate-bioprosthesis-in-a-preclinical-model
#20
Haytham Elgharably, Jose L Navia, Cristian Baeza, Gabriel Maluenda, Samir Kapadia, Jerzy Sadowski, Krzysztof Bartuś, Cesare Beghi, Kalathi Thyagarajan, Ryan Bertwell, Rodolfo C Quijano
AIMS: To test the feasibility of trans-catheter mitral valve implantation of the NaviGate device in acute and chronic preclinical models. METHODS AND RESULTS: We evaluated the NaviGate valved stent implantation in the mitral position in an acute swine model (n=24, ≤ 5 days) through three different approaches: trans-atrial, trans-apical, and trans-septal, and in a chronic swine model (n=12, >10 days) through a trans-atrial approach. The NaviGate implantation procedures were successful in 83% of the acute model studies (n=20) and 83% of the chronic model studies (n=10)...
September 19, 2017: EuroIntervention
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