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https://www.readbyqxmd.com/read/29788476/the-flutter-by-effect-a-comprehensive-study-of-the-fluttering-cusps-of-the-perceval-heart-valve-prosthesis
#1
Ali Aljalloud, Mohamed Shoaib, Sandrine Egron, Jessica Arias, Lachmandath Tewarie, Heike Schnoering, Shahram Lotfi, Andreas Goetzenich, Nima Hatam, Desiree Pott, Zhaoyang Zhong, Ulrich Steinseifer, Rachad Zayat, Ruediger Autschbach
OBJECTIVES: Sutureless aortic valve prostheses are gaining popularity due to the substantial reduction in cross-clamp time. In this study, we report our observations on the cusp-fluttering phenomenon of the Perceval bioprosthesis (LivaNova, London, UK) using a combination of technical and medical perspectives. METHODS: Between August 2014 and December 2016, a total of 108 patients (69% women) with a mean age of 78 years had aortic valve replacement using the Perceval bioprosthesis (34 combined procedures)...
May 17, 2018: Interactive Cardiovascular and Thoracic Surgery
https://www.readbyqxmd.com/read/29777159/identification-of-mycobacterium-chimaera-in-heater-cooler-units-in-china
#2
Xiaoxia Zhang, Ji Lin, Yu Feng, Xiaohui Wang, Alan McNally, Zhiyong Zong
A global outbreak of infections due to Mycobacterium chimaera has been linked to the LivaNova (formerly Sorin) 3 T heater-cooler units (HCUs). We performed a study to investigate M. chimaera from HCUs in China. Water samples were collected from all 3 T HCUs (n = 5) at our hospital in May 2017. Mycobacteria isolates were subjected to genome sequencing using the HiSeq X10 Sequencer. Species were identified based on average nucleotide identity with M. chimaera type strain DSM 44623T . Paired-end reads of all M...
May 18, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29701355/aortic-valve-replacement-with-perceval%C3%A2-bioprosthesis-initial-single-center-experience
#3
Diogo Rijo, Sara Simões Costa, João Pedro Monteiro, Fátima Neves, Luís Vouga, Paulo Neves, Paulo Ponce, Miguel Guerra
INTRODUCTION: Aortic valve replacement (AVR) is the gold standard for the treatment of severe or symptomatic aortic valve stenosis. Less invasive procedures have been developed as an alternative to the conventional technique of full sternotomy approach with stented prosthesis. The Perceval® aortic valve (LivaNova, Milan, Italy) is a sutureless bioprosthesis, of which several reports have shown promising results in terms of mortality, morbidity and hemodynamic performance, especially with a less invasive approach...
July 2017: Revista Portuguesa de Cirurgia Cardio-torácica e Vascular
https://www.readbyqxmd.com/read/29697598/a-phase-1-study-of-a-novel-bidirectional-perfusion-cannula-in-patients-undergoing-femoral-cannulation-for-cardiac-surgery
#4
Silvana F Marasco, Elli Tutungi, Shirley A Vallance, Andrew A Udy, Justin C Negri, Adam D Zimmet, David C McGiffin, Vincent A Pellegrino, Randall A Moshinsky
OBJECTIVE: Leg ischemia is a serious complication of femoral artery cannulation. The primary aim of this study was to assess the safety and efficacy of a novel bidirectional femoral arterial cannula (Sorin Group USA, a wholly owned subsidiary of LivaNova PLC, Arvada, CO USA) that provides both antegrade and retrograde flow, in patients undergoing peripheral cannulation for cardiopulmonary bypass during cardiac surgery. METHODS: Patients undergoing routine cardiac surgery requiring femoral artery cannulation for cardiopulmonary bypass were identified preoperatively...
April 24, 2018: Innovations: Technology and Techniques in Cardiothoracic and Vascular Surgery
https://www.readbyqxmd.com/read/29615331/a-novel-wall-water-system-for-cardiopulmonary-bypass-may-reduce-the-risk-of-aerosolized-infection
#5
Gregory S Matte, Thomas J Sandora, Robert J Howe, William L Regan, Gail Potter-Bynoe, James R Neal, Pedro J Del Nido
OBJECTIVE: Oxygenators for cardiopulmonary bypass require water flow for their integral heat exchanger. Heater-cooler units are nearly universally used for this requirement. Heater-cooler units pose the risk of aerosolized infection. The Centers for Disease Control and Prevention recommended discontinuing use of Stöckert 3T heater-cooler units (LivaNova PLC, London, United Kingdom) in October 2016 because of this risk. We aimed to reduce the risk of aerosolized infection posed by heater-cooler units by eliminating those devices from our operating rooms...
March 7, 2018: Journal of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/29611217/transcatheter-aortic-valve-in-valve-implantation-for-early-failure-of-sutureless-aortic-bioprosthesis
#6
Xiaotian Sun, Zuorui Song, Daniel Soffer, John P Pirris
We report a case of early failure of a Perceval sutureless aortic bioprosthesis (LivaNova, London, UK) which was treated with a transcatheter valve-in-valve implantation with an Edwards 3 bioprosthesis (Edwards Lifesciences, Irvine, CA).
April 2, 2018: Journal of Cardiac Surgery
https://www.readbyqxmd.com/read/29481624/long-term-outcomes-using-the-stentless-livanova-sorin-pericarbon-freedom%C3%A2-valve-after-aortic-valve-replacement
#7
Guglielmo Stefanelli, Fabrizio Pirro, Alina Olaru, Giuseppe Danniballe, Clorinda Labia, Luca Weltert
OBJECTIVES: Information on the long-term safety, efficacy and durability of third-generation stentless aortic valves is lacking. METHODS: In this single-centre, single-surgeon retrospective observational study, between 2003 and 2015, consecutive, non-selected aortic valve replacement (AVR) patients were implanted with the LivaNova-Sorin Pericarbon Freedom™, a third-generation stentless aortic xenograft. Changes in clinical and echocardiographic parameters were examined, as were mortality, structural valve deterioration and reoperation, according to age at 5, 10 and 14 years...
February 21, 2018: Interactive Cardiovascular and Thoracic Surgery
https://www.readbyqxmd.com/read/29455818/mitral-regurgitation-exacerbation-due-to-sutureless-aortic-valve-replacement
#8
Timothy Lee, Alexander J C Mittnacht, Shinobu Itagaki, Allan Stewart
Sutureless aortic valves are increasingly used for aortic valve replacement (AVR) with excellent outcomes. Implantation requires device expansion in a subannular position within the native aortic root. We report a patient with severe aortic stenosis who received a Perceval sutureless AVR (LivaNova, London, United Kingdom), resulting in a competent prosthesis with an absence of paravalvular leak and aortic regurgitation. However, this implantation resulted in the exacerbation of mitral regurgitation. The sutureless valve required explantation, and a traditional sutured valve was subsequently implanted, which returned the mitral regurgitation to baseline...
March 2018: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/29453309/sutureless-perceval-aortic-valve-versus-conventional-stented-bioprostheses-meta-analysis-of-postoperative-and-midterm-results-in-isolated-aortic-valve-replacement
#9
REVIEW
Massimo Meco, Andrea Montisci, Antonio Miceli, Paolo Panisi, Francesco Donatelli, Silvia Cirri, Matteo Ferrarini, Antonio Lio, Mattia Glauber
BACKGROUND: Aortic stenosis is the most common valvular disease and has a dismal prognosis without surgical treatment. The aim of this meta-analysis was to quantitatively assess the comparative effectiveness of the Perceval (LivaNova) valve versus conventional aortic bioprostheses. METHODS AND RESULTS: A total of 6 comparative studies were identified, including 639 and 760 patients who underwent, respectively, aortic valve replacement with the Perceval sutureless valve (P group) and with a conventional bioprosthesis (C group)...
February 16, 2018: Journal of the American Heart Association
https://www.readbyqxmd.com/read/29342891/influence-of-the-composition-structure-and-physical-and-chemical-properties-of-aluminium-oxide-based-sorbents-on-water-adsorption-ability
#10
Ruslan Zotov, Eugene Meshcheryakov, Alesia Livanova, Tamara Minakova, Oleg Magaev, Lyubov Isupova, Irina Kurzina
Interaction between the water adsorption ability of aluminium-oxide-based sorbents and their chemical composition, acid-base properties of the surface, and textural characteristics has been analysed. Alumina desiccants were synthesized with the centrifugal-thermal activation of gibbsite followed by the hydration of the gibbsite under mild conditions. It was demonstrated that the multicyclic adsorption regeneration of samples under realistic conditions results in structural transformations and changes in the acidity of their surfaces and water adsorption ability...
January 14, 2018: Materials
https://www.readbyqxmd.com/read/29338037/stentless-vs-stented-bioprosthesis-for-aortic-valve-replacement-a-case-matched-comparison-of-long-term-follow-up-and-subgroup-analysis-of-patients-with-native-valve-endocarditis
#11
COMPARATIVE STUDY
Andreas Schaefer, Jannis Dickow, Gerhard Schoen, Sumi Westhofen, Lisa Kloss, Tarik Al-Saydali, Hermann Reichenspurner, Sebastian A Philipp, Christian Detter
BACKGROUND: Current retrospective evidence suggests similar clinical and superior hemodynamic outcomes of the Sorin Freedom Solo stentless aortic valve (SFS) (LivaNova PLC, London, UK) compared to the Carpentier Edwards Perimount stented aortic valve (CEP) (Edwards Lifesciences Inc., Irvine, California, USA). To date, no reports exist describing case-matched long-term outcomes and analysis for treatment of native valve endocarditis (NVE). METHODS: From 2004 through 2014, 77 consecutive patients (study group, 59...
2018: PloS One
https://www.readbyqxmd.com/read/29302117/an-in-vitro-study-comparing-the-gme-handling-of-two-contemporary-oxygenators
#12
Carl J Gisnarian, Angela Hedman, Kenneth G Shann
Gaseous microemboli (GME) are a potential complication of cardiopulmonary bypass (CPB). Though it is difficult to prove that GME is the only major cause of neurological deficits, it may increase the chance of post-operative cognitive dysfunction if not removed. The objectives of this research were to compare LivaNova-Sorin Inspire (Inspire) oxygenator with a Medtronic arterial filter to the Medtronic Fusion (Fusion) oxygenator with and without a Medtronic arterial filter based on each system's ability to handle GME...
December 2017: Journal of Extra-corporeal Technology
https://www.readbyqxmd.com/read/29234617/transcatheter-mitral-valve-implantation-in-open-heart-surgery-an-off-label-technique
#13
Jacopo Alfonsi, Giacomo Murana, Anna Corsini, Carlo Savini, Roberto Di Bartolomeo, Davide Pacini
Extensive mitral annulus calcifications are considered a contraindication for valve surgery. We describe the case of a 76-year-old female with severe mitral and aortic stenosis associated with extensive calcifications of the heart. The patient underwent an open mitroaortic valve replacement using transcatheter aortic valve implantation with an Edwards SAPIEN XT valve (Edwards Lifesciences Corp., Irvine, CA, USA) in the mitral position. The aortic valve was replaced using a stentless valve prosthesis (LivaNova SOLO; LivaNova PLC, London, UK)...
December 2017: Korean Journal of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/29233766/use-of-the-perceval-sutureless-valve-in-active-prosthetic-aortic-valve-endocarditis
#14
Elena Roselló-Díez, Gregorio Cuerpo, Francisco Estévez, Christian Muñoz-Guijosa, Manel Tauron, José J Cuenca, Ángel González-Pinto, Josep María Padró
BACKGROUND: Surgical treatment of active prosthetic aortic valve endocarditis presents a challenge for cardiac surgeons because of tissue friability and destruction caused by infection. Sutureless prostheses, such as the Perceval S (LivaNova, Saluggia, Italy), have emerged as an option among the different surgical approaches for these complicated cases. METHODS: This study presents data from 9 patients who underwent aortic valve re-replacement with the Perceval S because of active prosthetic aortic valve endocarditis between January 2014 and August 2016...
April 2018: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/29160045/stentless-sutureless-and-transcatheter-valves-a-comparison-of-the-hemodynamic-performance-of-different-prostheses-concept
#15
Alberto Repossini, Theodor Fischlein, Marco Solinas, Lorenzo DI Bacco, Bruno Passaretti, Herko Grubitzsch, Thierry Folliguet, Giuseppe Santarpino, Roberto DI Bartolomeo, François Laborde, Claudio Muneretto
BACKGROUND: Stentless aortic valves have been developed to overcome obstructive limitations associated with stented bioprostheses. A new concept of surgical sutureless (SU) bioprosthesis has been developed in the last decade. In this multi-institutional study we sought to compare hemodynamics of different bioprosthesis concept as transcatheter (TAVR), Livanova Perceval S sutureless valve and Freedom Solo Stentless (FS) valve in patients undergoing aortic valve replacement (sAVR). METHODS: From 2010 to 2016, 478 patients underwent sAVR with FS, 518 Perceval S and 367 patients underwent TAVR...
April 2018: Minerva Cardioangiologica
https://www.readbyqxmd.com/read/29100646/an-unexpected-risk-factor-for-early-structural-deterioration-of-biological-aortic-valve-prostheses
#16
Carlo Bassano, Valentina Gislao, Emanuele Bovio, Sonia Melino, Ilaria Tropea, Guglielmo Saitto, Marta Pugliese, Dionisio F Colella, Antonio Scafuri, Giovanni Ruvolo
BACKGROUND: An alarming rate of early failure has been recently reported for the LivaNova (previously Sorin) Mitroflow (LivaNova, London, UK) bioprosthesis. Here, we aimed at verifying if this possible underperformance is confirmed in a large, single-center experience and identifying the risk factors associated with early deterioration. METHODS: In all, 459 Mitroflow valves have been implanted from July 2009 to December 2013 (patients' mean age 73 years; 204 women)...
February 2018: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/28964415/aortic-valve-replacement-with-perceval-bioprosthesis-single-center-experience-with-617-implants
#17
Giovanni Concistrè, Francesca Chiaramonti, Giacomo Bianchi, Alfredo Cerillo, Michele Murzi, Rafik Margaryan, Pierandrea Farneti, Marco Solinas
BACKGROUND: This study describes the clinical and echocardiographic outcomes in a large single-center cohort of patients who underwent aortic valve replacement (AVR) with a sutureless Perceval (LivaNova, Milan, Italy) aortic bioprosthesis. METHODS: Between March 2011 and December 2015, 617 patients underwent AVR with a Perceval bioprosthesis. The mean age was 76 ± 7 years, 388 patients were female (63%), and the mean European System for Cardiac Operative Risk Evaluation (EuroSCORE) II was 6...
January 2018: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/28862959/hypo-attenuated-leaflet-thickening-and-reduced-leaflet-motion-in-sutureless-bioprosthetic-aortic-valves
#18
Magnus Dalén, Ulrik Sartipy, Kerstin Cederlund, Anders Franco-Cereceda, Anders Svensson, Raquel Themudo, Peter Svenarud, Elin Bacsovics Brolin
BACKGROUND: The prevalence of hypo-attenuated leaflet thickening (HALT) and reduced leaflet motion (RLM) is unknown in surgically implanted bioprostheses because systematic investigation of HALT and/or RLM is limited to a few catheter-based valves. The aim of this study was to investigate the prevalence of HALT and RLM by cardiac computed tomography in patients who underwent surgical aortic valve replacement and received a Perceval sutureless aortic valve bioprosthesis. METHODS AND RESULTS: This was a single-center prospective observational study that included 47 patients (83...
August 21, 2017: Journal of the American Heart Association
https://www.readbyqxmd.com/read/28774973/complete-genome-sequence-of-mycobacteriumchimaera-strain-cdc2015-22-71
#19
Nabeeh A Hasan, Adrian Lawsin, K Allison Perry, Efe Alyanak, Nadege C Toney, Allyson Malecha, Lori A Rowe, Dhwani Batra, Heather Moulton-Meissner, Jeffrey R Miller, Michael Strong, Alison Laufer Halpin
Mycobacterium chimaera is a nontuberculous mycobacterium species commonly found in the environment. Here, we report the first complete genome sequence of a strain from the investigation of invasive infections following open-heart surgeries that used contaminated LivaNova Sorin Stockert 3T heater-cooler devices.
August 3, 2017: Genome Announcements
https://www.readbyqxmd.com/read/28711585/global-outbreak-of-severe-mycobacterium-chimaera-disease-after-cardiac-surgery-a-molecular-epidemiological-study
#20
Jakko van Ingen, Thomas A Kohl, Katharina Kranzer, Barbara Hasse, Peter M Keller, Anna Katarzyna Szafrańska, Doris Hillemann, Meera Chand, Peter Werner Schreiber, Rami Sommerstein, Christoph Berger, Michele Genoni, Christian Rüegg, Nicolas Troillet, Andreas F Widmer, Sören L Becker, Mathias Herrmann, Tim Eckmanns, Sebastian Haller, Christiane Höller, Sylvia B Debast, Maurice J Wolfhagen, Joost Hopman, Jan Kluytmans, Merel Langelaar, Daan W Notermans, Jaap Ten Oever, Peter van den Barselaar, Alexander B A Vonk, Margreet C Vos, Nada Ahmed, Timothy Brown, Derrick Crook, Theresa Lamagni, Nick Phin, E Grace Smith, Maria Zambon, Annerose Serr, Tim Götting, Winfried Ebner, Alexander Thürmer, Christian Utpatel, Cathrin Spröer, Boyke Bunk, Ulrich Nübel, Guido V Bloemberg, Erik C Böttger, Stefan Niemann, Dirk Wagner, Hugo Sax
BACKGROUND: Since 2013, over 100 cases of Mycobacterium chimaera prosthetic valve endocarditis and disseminated disease were notified in Europe and the USA, linked to contaminated heater-cooler units (HCUs) used during cardiac surgery. We did a molecular epidemiological investigation to establish the source of these patients' disease. METHODS: We included 24 M chimaera isolates from 21 cardiac surgery-related patients in Switzerland, Germany, the Netherlands, and the UK, 218 M chimaera isolates from various types of HCUs in hospitals, from LivaNova (formerly Sorin; London, UK) and Maquet (Rastatt, Germany) brand HCU production sites, and unrelated environmental sources and patients, as well as eight Mycobacterium intracellulare isolates...
October 2017: Lancet Infectious Diseases
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