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https://www.readbyqxmd.com/read/28430904/catheter-based-tricuspid-valve-replacement-first-experimental-data-of-a-newly-designed-bileaflet-stent-graft-prosthesis%C3%A2
#1
Henning F Lausberg, Rafal Gryszkiewicz, Maximilian Kuetting, Moritz Baumgaertner, Marcos Centola, Hans-Peter Wendel, Martina Nowak-Machen, David Schibilsky, Tobias Kruger, Christian Schlensak
OBJECTIVES: Moderate or severe degree tricuspid valve regurgitation (TVR) is associated with high rates of morbidity and mortality. Surgical correction as the only therapeutic option offers unsatisfactory results. Recently, several interventional procedures have been introduced clinically in a limited cohort. We present our initial experiments with an innovative interventional valved stent graft for treatment of TVR. METHODS: A newly designed porcine pericardium-covered nitinol stent graft with a lateral bicuspid valve was adapted to size in a cadaver study...
April 18, 2017: European Journal of Cardio-thoracic Surgery
https://www.readbyqxmd.com/read/28427320/the-role-of-inelastic-deformations-in-the-mechanical-response-of-endovascular-shape-memory-alloy-devices
#2
Lorenza Petrini, Alessandro Bertini, Francesca Berti, Giancarlo Pennati, Francesco Migliavacca
Nickel-titanium alloys are commonly adopted for producing cardiovascular minimally invasive devices such as self-expandable stents, aortic valves and stent-grafts. These devices are subjected to cyclic loads (due to blood pulsatility, leg or heart movements), that can induce fatigue fracture, and may also be subjected to very large deformations (due to crimping procedure, a tortuous physiological path or overloads), that can induce material yield. Recently, the authors developed a new constitutive model that considers inelastic strains due to not-completed reverse phase transformation (not all the stress-induced martensite turns back to austenite) or/and plasticity and their accumulation during cyclic loads...
May 2017: Proceedings of the Institution of Mechanical Engineers. Part H, Journal of Engineering in Medicine
https://www.readbyqxmd.com/read/28412039/distal-left-main-trifurcation-disease-in-a-patient-with-porcelain-aorta
#3
Ulises Lopez-Peña, Francisco Garcia-Garcia, Rogelio Robledo-Nolasco, Ernesto Fernandez-Ceseña, Ricardo Borrego-Montoya, Neisser Morales
Coronary trifurcation lesions are a complex subset of lesions and are substantially more complex than bifurcations when treated with percutaneous coronary intervention (PCI) because of higher rates of acute periprocedural complications (dissection, myocardial infarction, acute vessel closure) and less effective long-term outcomes (stent thrombosis, restenosis) as compared to non-bifurcation lesions. We present the case of a 73-year-old man who was admitted to our hospital with symptomatic severe aortic stenosis who was found to have a distal left main trifurcation disease as well as porcelain aorta on work-up...
March 8, 2017: Cardiovascular Revascularization Medicine: Including Molecular Interventions
https://www.readbyqxmd.com/read/28410636/stent-and-leaflet-stresses-in-29-mm-second-generation-balloon-expandable-transcatheter-aortic-valve
#4
Yue Xuan, Kapil Krishnan, Jian Ye, Danny Dvir, Julius M Guccione, Liang Ge, Elaine E Tseng
BACKGROUND: Equipoise of transcatheter aortic valve replacement with surgical aortic valve replacement in intermediate-risk patients has been demonstrated. As transcatheter aortic valve replacement usage expands, questions regarding long-term durability become paramount. Valve design impacts durability with regions of increased leaflet stress being vulnerable to early failure. However, transcatheter aortic valve (TAV) leaflet stresses are unknown. The objective of this study was to determine stent and leaflet stresses of second-generation balloon-expandable TAV...
April 12, 2017: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/28391759/current-treatment-of-tracheoesophageal-fistula
#5
Changzhi Zhou, Yi Hu, Yang Xiao, Wen Yin
Tracheoesophageal fistulas (TEFs) often occur with esophageal or bronchial carcinoma. Currently, we rely on implantation of delicate devices, such as self-expanding and silicone stents, in the esophagus or trachea to cover the fistula and expand the stenosis in order to relieve patient pain. However, because each case is different, our approach may not be effective for every patient. Consequently, new devices and technology have emerged to address these situations, such as degradable stents, Amplatzer(®) devices, endobronchial one-way umbrella-shaped valves, and transplantation of mesenchymal stem cells...
April 2017: Therapeutic Advances in Respiratory Disease
https://www.readbyqxmd.com/read/28386747/hospital-cost-savings-and-other-advantages-of-sutureless-vs-stented-aortic-valves-for-intermediate-risk-elderly-patients
#6
Tomoyuki Minami, Sarah Sainte, Herbert De Praetere, Filip Rega, Willem Flameng, Peter Verbrugghe, Bart Meuris
PURPOSE: To evaluate and compare the clinical outcomes and hospital costs of using sutureless aortic valves vs conventional stented aortic valves. METHODS: Between 2007 and 2011, 52 elderly patients undergoing aortic valve replacement for aortic stenosis in our center had a sutureless valve inserted. From among 180 patients who had a stented valve inserted during the same period, 52 patients were matched to the sutureless group, based on age, gender, and operation type...
April 6, 2017: Surgery Today
https://www.readbyqxmd.com/read/28380656/early-results-of-surgical-simultaneous-therapy-for-significant-carotid-artery-stenosis-and-heart-disease
#7
Marc Irqsusi, Alessandro Vannucchi, Julius Beckers, Stefan Kasseckert, Stefan Waldhans, Sebastian Vogt, Rainer G H Moosdorf
Background The purpose of this single-center, retrospective study was to review the early outcome with defined endpoints of myocardial infarction, brain injury, and death after coronary bypass grafting and simultaneous carotid endarterectomy with or without combined valve replacement. Methods During the preoperative investigation 52 (44 males, 8 females) patients were examined by cardiac catheterization within the scope of their coronary status. In addition, all patients underwent echocardiography, CT angiography of the supra-aortic vessels, and full description of their neurologic status...
April 5, 2017: Thoracic and Cardiovascular Surgeon
https://www.readbyqxmd.com/read/28379441/preventive-left-main-and-right-coronary-artery-stenting-to-avoid-coronary-ostia-occlusion-in-high-risk-stentless-valve-in-valve-transcatheter-aortic-valve-implantation
#8
Silvia Maggio, Alessia Gambaro, Roberto Scarsini, Flavio Ribichini
Transcatheter aortic valve implantation is becoming an attractive and promising alternative to redo surgery for aortic bioprosthetic valves degeneration, especially in high-risk patients. However, valve-in-valve transcatheter aortic valve implantation itself carries some procedural risks and potential challenges that interventionists must be aware of. An accurate preprocedural planning is fundamental for the prevention of potentially fatal complications. This case describes a novel strategy of simultaneous right and left coronary artery stenting preventing bilateral coronary obstruction in a patient with a stentless surgical aortic valve and extremely low origin of the 2 coronary arteries...
March 31, 2017: Interactive Cardiovascular and Thoracic Surgery
https://www.readbyqxmd.com/read/28377566/initial-experience-with-aortic-valve-replacement-via-a-minimally-invasive-approach-a-comparison-of-stented-stentless-and-sutureless-valves
#9
Johanna Konertz, Konstantin Zhigalov, Alexander Weymann, Pascal M Dohmen
BACKGROUND This study aimed to compare the short-term outcomes of MIS-AVR among 3 different types of biological heart valves. MATERIAL AND METHODS Complete data were obtained from 79 patients who underwent MIS-AVR between January 2010 and June 2015. Patients were divided into 3 groups: 27 patients (group A) received Medtronic 3f® (Medtronic Inc., Fridley, MN, USA), 36 patients (group B) received DokimosPlus® (LabCor Laboratórios Ltda., Belo Horizonte, Brazil) and 16 patients (group C) received Perceval® (Sorin Biomedica Cardio S...
April 5, 2017: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/28374618/the-economic-value-of-rapid-deployment-aortic-valve-replacement-via-full-sternotomy
#10
Matt Moore, Glenn R Barnhart, W Randolph Chitwood, John A Rizzo, Candace Gunnarsson, Swetha R Palli, Eugene A Grossi
AIM: To compare the economic value of EDWARDS INTUITY Elite™ (EIE) valve system for rapid-deployment aortic valve replacement (RDAVR) in a full sternotomy (FS) approach (EIE-FS-RDAVR) versus FS-AVR using conventional stented bioprosthesis. DATA & METHODS: A simulation model to compare each treatment's 30-day inpatient utilization and complication rates utilized: clinical end points obtained from the TRANSFORM trial patient subset (EIE-FS-RDAVR) and a best evidence review of the published literature (FS-AVR); and costs from the Premier database and published literature...
April 4, 2017: Journal of Comparative Effectiveness Research
https://www.readbyqxmd.com/read/28369281/relation-between-calcium-burden-echocardiographic-stent-frame-eccentricity-and-paravalvular-leakage-after-corevalve-transcatheter-aortic-valve-implantation
#11
Luigi F M Di Martino, Osama I I Soliman, Lennart van Gils, Wim B Vletter, Nicolas M Van Mieghem, Ben Ren, Tjebbe W Galema, Carl Schultz, Peter P T de Jaegere, Matteo Di Biase, Marcel L Geleijnse
Aims: Paravalvular aortic leakage (PVL) after transcatheter aortic valve implantation (TAVI) is a complication with potentially severe consequences. The relation between native aortic root calcium burden, stent frame eccentricity and PVL was not studied before. Methods and results: Two-hundred-and-twenty-three consecutive patients with severe aortic stenosis who underwent TAVI with a Medtronic CoreValve System© and who had available pre-discharge transthoracic echocardiography were studied...
March 27, 2017: European Heart Journal Cardiovascular Imaging
https://www.readbyqxmd.com/read/28363682/twelve-month-outcome-of-patients-with-an-established-indication-for-oral-anticoagulation-undergoing-coronary-artery-stenting-and-stratified-by-the-baseline-risk-of-bleeding-insights-from-the-warfarin-and-coronary-stenting-war-stent-registry
#12
Andrea Rubboli, Francesco Saia, Alessandro Sciahbasi, Antonio M Leone, Cataldo Palmieri, Maria Letizia Bacchi-Reggiani, Paolo Calabrò, Barbara Bordoni, Giacomo Piccalò, Nicoletta Franco, Annamaria Nicolino, Paolo Magnavacchi, Luigi Vignali, Stefano Mameli, Michele Dallago, Stefano Maggiolini, Luigi Steffanon, Giancarlo Piovaccari, Giuseppe Di Pasquale
PURPOSE: To evaluate the outcome of patients with an established indication for oral anticoagulation (OAC) undergoing coronary stent implantation (PCI-S) and stratified by the baseline risk of bleeding. MATERIAL AND METHODS: The database of the prospective, multicentre, observational WAR-STENT registry (ClinicalTrials.gov identifier NCT00722319) was analyzed and patients with atrial fibrillation and CHA2DS2-VASc score ≥2, mechanical heart valve, prior cardiac embolism, intra-cardiac thrombus and recent venous thromboembolism who were treated with either triple (warfarin, aspirin and clopidogrel) or dual (warfarin and clopidogrel) or dual antiplatelet (aspirin and clopidogrel) therapy, identified...
March 19, 2017: Cardiovascular Revascularization Medicine: Including Molecular Interventions
https://www.readbyqxmd.com/read/28357625/a-case-of-double-stent-implantation-for-left-main-coronary-artery-occlusion-in-transcatheter-aortic-valve-implantation-using-sapien-xt-device
#13
Masaki Ito, Norio Tada, Tatsushi Ootomo, Naoto Inoue
Transcatheter aortic valve implantation is an established alternative and less invasive procedure to replace heart valves in symptomatic aortic stenosis patients; however, severe, life-threatening complications still exist. Coronary artery occlusion is a primary complication. We report a case of left main coronary artery occlusion after transcatheter aortic valve replacement, which was ameliorated using a double stent implantation technique.
March 29, 2017: Cardiovascular Intervention and Therapeutics
https://www.readbyqxmd.com/read/28347580/aorto-right-atrial-fistula-after-sutureless-valve-implantation
#14
Jessica G Y Luc, Michiko Maruyama, Surita Sidhu, Jayan Nagendran
Aortic valve replacement with sutureless valves has many potential applications including in redo surgery, minimally invasive scenarios, and heavily calcified aortic roots. Herein we report a case of the development of an aorto-right atrial fistula after replacement of a Medtronic Freestyle stentless subcoronary bioprosthesis (Medtronic Inc, Minneapolis, MN) with a Perceval sutureless valve (LivaNova PLC, London, UK). This eventually necessitated repair with repeat surgery and aortic valve replacement with a stented valve...
January 20, 2017: Canadian Journal of Cardiology
https://www.readbyqxmd.com/read/28345251/complication-of-hybrid-treatment-in-type-b-aortic-dissection-diagnosed-by-echocardiography
#15
Thaís Rossoni Weber, Viviane Tiemi Hotta, Carlos Eduardo Rochitte, Kamila Fernanda Staszko, Ricardo Ribeiro Dias, Charles Mady
This case illustrates an unusual and fatal complication after endovascular treatment of type B aortic dissection and highlights the role of echocardiography in the early diagnosis of complications. In this case, a patient with previous diagnosis of chronic type B aortic dissection and moderate aortic regurgitation underwent endovascular repair of the proximal descending aorta and conservative surgical correction of the aortic valve. On early postoperative, a transesophageal echocardiogram and aortic angiotomography demonstrated proximal endoleak by contrast extravasation around the proximal graft attachment site, causing compression of the stent in its middle portion, resulting in narrowing with reduced cross-sectional area...
March 27, 2017: Echocardiography
https://www.readbyqxmd.com/read/28342794/stented-bovine-jugular-vein-graft-melody-valve-in-mitral-position-could-be-an-alternative-for-mechanical-valve-replacement-in-the-pediatric-population
#16
Álvaro González Rocafort, Ángel Aroca, César Abelleira, Hernán Carnicer, Carlos Labrandero, Sandra Villagrá
No abstract text is available yet for this article.
March 22, 2017: Revista Española de Cardiología
https://www.readbyqxmd.com/read/28335899/percutaneous-plug-based-arteriotomy-closure-device-for-large-bore-access-a-multicenter-prospective-study
#17
Nicolas M Van Mieghem, Azeem Latib, Jan van der Heyden, Lennart van Gils, Joost Daemen, Todd Sorzano, Jurgen Ligthart, Karin Witberg, Thom de Kroon, Nathaniel Maor, Antonio Mangieri, Matteo Montorfano, Peter P de Jaegere, Antonio Colombo, Gary Roubin
OBJECTIVES: The authors sought to study the safety and efficacy of the MANTA Vascular Closure Device (VCD), a novel collagen-based technology dedicated to closure of large-bore arteriotomies. BACKGROUND: Novel transfemoral therapeutic interventions requiring large-bore catheters have become valid minimally invasive options but have inherent access management challenges. To date, no dedicated vascular closure devices exist for large arteriotomies. METHODS: A prospective, single-arm clinical investigation enrolling patients who underwent elective percutaneous interventions with large-bore catheters and planned percutaneous arteriotomy closure in 3 European institutions...
March 27, 2017: JACC. Cardiovascular Interventions
https://www.readbyqxmd.com/read/28319480/right-axillary-artery-cannulation-for-endovascular-repair-of-an-acute-type-a-aortic-dissection
#18
Corbin E Muetterties, Jeremy H Conklin, G William Moser, Grayson H Wheatley
We present the case of a 48-year-old woman with an acute type A aortic dissection that was treated with thoracic endovascular aortic repair at our institution. The patient was found to have a focal type A dissection with pericardial effusion but no tamponade physiology and no involvement of the aortic valve or root. We elected to treat the patient's type A aortic dissection with an endovascular stent because of the patient's favorable anatomy and no evidence of neurologic deficits or signs of distal malperfusion...
March 17, 2017: Innovations: Technology and Techniques in Cardiothoracic and Vascular Surgery
https://www.readbyqxmd.com/read/28318815/the-role-of-cardiac-rehabilitation-in-patients-with-heart-disease
#19
REVIEW
Sean R McMahon, Philip A Ades, Paul D Thompson
Cardiac rehabilitation is a valuable treatment for patients with a broad spectrum of cardiac disease. Current guidelines support its use in patients after acute coronary syndrome, coronary artery bypass grafting, coronary stent placement, valve surgery, and stable chronic systolic heart failure. Its use in these conditions is supported by a robust body of research demonstrating improved clinical outcomes. Despite this evidence, cardiac rehabilitation referral and attendance remains low and interventions to increase its use need to be developed...
February 15, 2017: Trends in Cardiovascular Medicine
https://www.readbyqxmd.com/read/28314673/can-we-perform-rotational-atherectomy-in-patients-with-severe-aortic-stenosis-substudy-from-the-ocean-tavi-registry
#20
Toru Naganuma, Hiroyoshi Kawamoto, Kensuke Takagi, Hiroto Yabushita, Satoru Mitomo, Yusuke Watanabe, Shinichi Shirai, Motoharu Araki, Norio Tada, Futoshi Yamanaka, Masanori Yamamoto, Hirokazu Onishi, Sunao Nakamura, Akihiro Higashimori, Minoru Tabata, Kazuki Mizutani, Hiroshi Ueno, Kentaro Hayashida
PURPOSE: The aim of this study was to report the safety of coronary rotational atherectomy (RA) in patients with severe aortic stenosis (AS). RA in the clinical setting seems challenging because coronary slow flow leads to hemodynamic instability. METHODS: Between October 2013 and May 2016, 1401 patients in the Optimized transCathEter vAlvular iNtervention (OCEAN) registry in Japan underwent transcatheter aortic valve implantation (TAVI). The primary study endpoint was procedural success, defined as residual stenosis <20% with final Thrombolysis in Myocardial Infarction flow 3...
February 28, 2017: Cardiovascular Revascularization Medicine: Including Molecular Interventions
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