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https://www.readbyqxmd.com/read/28589570/transapical-transcatheter-valve-in-ring-implantation-following-mitral-annuloplasty
#1
Steffen Pfeiffer, Laszlo Gazdag, Jürgen Jessl, Giuseppe Santarpino
Despite advances in surgical techniques for mitral valve repair, more than 20% of patients require reoperation within 10 years due to recurrence of severe mitral regurgitation. However, reoperations on the mitral valve are often associated with increased morbidity and mortality. We report a transapical mitral valve-in-ring implantation in a patient who had undergone mitral valve repair for ischemic mitral regurgitation using a complete semi-rigid Memo 3D mitral ring (LivaNova Group, Milan, Italy).
June 6, 2017: Journal of Cardiac Surgery
https://www.readbyqxmd.com/read/28570342/the-perceval-sutureless-aortic-valve-review-of-outcomes-complications-and-future-direction
#2
Ramsey Powell, Marc P Pelletier, Michael W A Chu, Denis Bouchard, Kevin N Melvin, Corey Adams
Surgical aortic valve replacement with a stented prosthesis has been the standard of care procedure for aortic stenosis. The Perceval (LivaNova, London, United Kingdom) is a sutureless aortic valve bioprosthesis currently implanted in more than 20,000 patients. The purpose of this article was to review the literature available after 9 years of clinical experience of the Perceval aortic valve. PubMED, Embase, and the Cochrane Library databases were searched. A meta-analysis of summary statistics from individual studies was conducted...
May 2017: Innovations: Technology and Techniques in Cardiothoracic and Vascular Surgery
https://www.readbyqxmd.com/read/28545549/detection-and-genetic-characterization-of-a-wide-range-of-infectious-agents-in-ixodes-pavlovskyi-ticks-in-western-siberia-russia
#3
Vera Rar, Natalia Livanova, Sergey Tkachev, Galina Kaverina, Artem Tikunov, Yuliya Sabitova, Yana Igolkina, Victor Panov, Stanislav Livanov, Nataliya Fomenko, Igor Babkin, Nina Tikunova
BACKGROUND: The Ixodes pavlovskyi tick species, a member of the I. persulcatus/I. ricinus group, was discovered in the middle of the 20(th) century in the Russian Far East. Limited data have been reported on the detection of infectious agents in this tick species. The aim of this study was to investigate the prevalence and genetic variability of a wide range of infectious agents in I. pavlovskyi ticks collected in their traditional and recently invaded habitats, the Altai Mountains and Novosibirsk Province, respectively, which are both located within the Western Siberian part of the I...
May 25, 2017: Parasites & Vectors
https://www.readbyqxmd.com/read/28507774/footnotes-to-kraepelin-changes-in-the-classification-of-mood-disorders-with-dsm-5
#4
EDITORIAL
Nicola J Kalk, Allan H Young
SUMMARY: Reliable diagnosis of mood disorders continues to pose a challenge. This is surprising because they have been recognised clinically since classical times. Mood disorders are also common: major depressive disorder affects nearly 300 million people worldwide and bipolar affective disorder nearly 60 million and they are a major cause of disability. Nonetheless, the reliability trials of the updated Diagnostic and Statistical Manual, Fifth Edition (DSM-5) found that the reliability of the diagnosis of major depressive disorder was in the 'questionable' range...
May 2017: BJPsych Open
https://www.readbyqxmd.com/read/28499651/bioprosthetic-aortic-valve-durability-a-meta-regression-of-published-studies
#5
REVIEW
Mansen Wang, Anthony P Furnary, Hsin-Fang Li, Gary L Grunkemeier
To compare structural valve deterioration (SVD) among bioprosthetic aortic valve types, a PubMed search found 54 papers containing SVD-free curves extending to at least 10 years. The curves were digitized and fit to Weibull distributions, and the mean times to valve failure (MTTF) were calculated. Twelve valve models were collapsed into four valve types: Medtronic (Medtronic, Minneapolis, MN) and Edwards (Edwards Lifesciences, Irvine, CA) porcine; and Sorin (Sorin Group [now LivaNova], London, United Kingdom) and Edwards pericardial...
May 9, 2017: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/28347580/aorto-right-atrial-fistula-after-sutureless-valve-implantation
#6
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/28174055/transcatheter-jenavalve-implantation-in-a-stentless-prosthesis-a-challenging-case-after-4-previous-aortic-procedures
#7
Sandro Sponga, Enzo Mazzaro, Rodrigo Bagur, Ugolino Livi
A 40-year-old man underwent 4 aortic surgeries because of endocarditis and subsequent prosthesis dehiscence. At the last recurrence he presented with acute severe aortic regurgitation of a Pericarbon Freedom (LivaNova plc, London, UK) stentless bioprosthesis and a morphologically disarranged aortic root. He also presented with left ventricular dysfunction and a very low origin of the left coronary artery. Therefore, a fifth redo aortic valve replacement was considered at high surgical risk. Accordingly, before listing the patient for a heart transplantation, a transcatheter valve-in-valve implantation with the JenaValve (JenaValve Technology, GmbH, Munich, Germany) prosthesis was performed...
November 11, 2016: Canadian Journal of Cardiology
https://www.readbyqxmd.com/read/28035639/mycobacterium-infection-from-a-cardiopulmonary-bypass-heater-cooler-unit-in-a-patient-with-steroid-induced-immunosuppression
#8
Yi Cai, Kevin Landolfo, Johnathan R Renew
PURPOSE: To present a case of mycobacterium infection transmitted through a heater-cooler unit during cardiac bypass surgery. CLINICAL FEATURES: A 63-yr-old woman with a past medical history of aortic coarctation repair in 1963 and a mechanical aortic valve replacement in 2010 was prescribed antibiotics and steroids at an outpatient care facility in September 2015 for symptoms of an upper respiratory tract infection. Four months later, she developed malaise and intermittent fever with anemia and acute kidney dysfunction...
May 2017: Canadian Journal of Anaesthesia, Journal Canadien D'anesthésie
https://www.readbyqxmd.com/read/27890735/variability-in-obstructive-sleep-apnea-analysis-of-pacemaker-detected-respiratory-disturbances
#9
Ghassan Moubarak, Abdeslam Bouzeman, Thibaut de Geyer d'Orth, Claire Bouleti, Christine Beuzelin, Serge Cazeau
BACKGROUND: Obstructive sleep apnea (OSA) is associated with several cardiovascular conditions. Some pacemakers feature specific algorithms detecting respiratory cycles and deriving indices well correlated with the identification of polysomnography-confirmed severe OSA. OBJECTIVES: The purposes of this study were to analyze respiratory disturbances measured by a validated algorithm in clinical practice and to describe their variability over time and their association with atrial fibrillation...
November 23, 2016: Heart Rhythm: the Official Journal of the Heart Rhythm Society
https://www.readbyqxmd.com/read/27832045/proof-of-concept-of-an-endoscopic-sutureless-valve-sizer
#10
Marco Vola, Juan Pablo Maureira, Vito Giovanni Ruggieri, Jean-François Fuzellier, Salvatore Campisi, Jean-Pierre Favre, Antoine Gerbay, Thierry A Folliguet
OBJECTIVE: In this paper, we present an endoscopic expandable sizer conceived to allow thoracoscopic aortic valve replacement with a sutureless prosthesis using a dynamic sizing of the aortic annulus. METHODS: Ten aortic torsos were prepared using a five-trocar thoracoscopic setting. Once the aortotomy was performed and the aortic valve leaflets removed, the technical feasibility of the endoscopic sizing (introduction into the trocar, expansion into the aortic annulus, determination of the valve size, and retraction) with the device was assessed...
September 2016: Innovations: Technology and Techniques in Cardiothoracic and Vascular Surgery
https://www.readbyqxmd.com/read/27776914/the-fate-of-small-size-pericardial-heart-valve-prostheses-in-an-older-patient-population
#11
Ruggero De Paulis, Salvatore D'Aleo, Alessandro Bellisario, Andrea Salica, Luca P Weltert, Raffaele Scaffa, Lorenzo Guerrieri Wolf, Daniele Maselli, Michele Di Mauro
BACKGROUND: Structural valve deterioration (SVD) is the Achilles' heel of bioprostheses. Its correlation with younger age is well known. In recent years we exclusively reserved use of small-size Mitroflow valve prostheses (LivaNova, London, United Kingdom) to an older patient population with small aortic annuli. This study aimed to assess the incidence of SVD and its effect on patient survival and need for reoperation. MATERIALS AND METHODS: Two hundred five patients (aged 75...
January 2017: Journal of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/27740609/notes-from-the-field-mycobacterium-chimaera-contamination-of-heater-cooler-devices-used-in-cardiac-surgery-united-states
#12
Kiran M Perkins, Adrian Lawsin, Nabeeh A Hasan, Michael Strong, Alison L Halpin, Rachael R Rodger, Heather Moulton-Meissner, Matthew B Crist, Suzanne Schwartz, Julia Marders, Charles L Daley, Max Salfinger, Joseph F Perz
In the spring of 2015, investigators in Switzerland reported a cluster of six patients with invasive infection with Mycobacterium chimaera, a species of nontuberculous mycobacterium ubiquitous in soil and water. The infected patients had undergone open-heart surgery that used contaminated heater-cooler devices during extracorporeal circulation (1). In July 2015, a Pennsylvania hospital also identified a cluster of invasive nontuberculous mycobacterial infections among open-heart surgery patients. Similar to the Swiss report, a field investigation by the Pennsylvania Department of Health, with assistance from CDC, used both epidemiologic and laboratory evidence to identify an association between invasive Mycobacterium avium complex, including M...
October 14, 2016: MMWR. Morbidity and Mortality Weekly Report
https://www.readbyqxmd.com/read/27605232/-tachycardia-detection-in-implantable-cardioverter-defibrillators-by-sorin-livanova-algorithms-pearls-and-pitfalls
#13
Christof Kolb, Rolf Ocklenburg
For physicians involved in the treatment of patients with implantable cardioverter-defibrillators (ICDs) the knowledge of tachycardia detection algorithms is of paramount importance. This knowledge is essential for adequate device selection during de-novo implantation, ICD replacement, and for troubleshooting during follow-up. This review describes tachycardia detection algorithms incorporated in ICDs by Sorin/LivaNova and analyses their strengths and weaknesses.
September 2016: Herzschrittmachertherapie & Elektrophysiologie
https://www.readbyqxmd.com/read/27575598/current-knowledge-and-future-perspectives-regarding-stented-valves
#14
Giuseppe Santarpino, Jurij M Kalisnik, Theodor Fischlein, Steffen Pfeiffer
Aortic valve bioprostheses are commonly implanted in the current era (also in younger patients) as they may obviate the need for anticoagulation while providing better hemodynamic performance and a more favorable quality of life. The steady increase in the use of biological valves has prompted the development of several different models of conventional stented bioprostheses. At present, there are four main types of stented aortic bioprostheses that compete in the market: the LivaNova Crown PRT (LivaNova Group, Burnaby, Canada), the St...
October 2016: Minerva Cardioangiologica
https://www.readbyqxmd.com/read/27096461/what-s-up-on-sutureless-valves
#15
Giuseppe Santarpino, Jurij M Kalisnik, Theodor Fischlein, Steffen Pfeiffer
Sutureless aortic bioprostheses have been developed for use in high-risk patients undergoing surgical aortic valve replacement due to severe aortic stenosis. These devices are mounted on a stent and are self-anchoring within the aortic annulus with no need for sutures, resulting in shorter operative and, hence, ischemic times. The use of these devices makes therefore valve implantation easier and faster, which seems to improve postoperative outcomes. At present, there are two commercially available sutureless aortic valves: the Perceval S (LivaNova Group, Milan, Italy) and the Intuity (Edwards Lifesciences, Irvine, CA, USA)...
October 2016: Minerva Cardioangiologica
https://www.readbyqxmd.com/read/27096460/what-s-up-on-stented-valves
#16
Giuseppe Santarpino, Jurij M Kalisnik, Theodor Fischlein, Steffen Pfeiffer
Aortic valve bioprostheses are commonly implanted in the current era - also in younger patients - as they may obviate the need for anticoagulation while providing better hemodynamic performance and a more favorable quality of life. The steady increase in the use of biological valves has prompted the development of several different models of conventional stented bioprostheses. At present, there are four main types of stented aortic bioprostheses that compete in the market: the LivaNova Crown PRT (LivaNova Group, Burnaby, Canada), the St...
April 20, 2016: Minerva Cardioangiologica
https://www.readbyqxmd.com/read/27066903/aortic-valve-replacement-in-elderly-with-small-aortic-root-and-low-body-surface-area-the-perceval-s-valve-and-its-impact-in-effective-orifice-area
#17
RANDOMIZED CONTROLLED TRIAL
Panagiotis Dedeilias, Nikolaos G Baikoussis, Efstathia Prappa, Dimitrios Asvestas, Michalis Argiriou, Christos Charitos
BACKGROUND: The aim of this study is to see how the sutureless, stentless, Perceval S aortic valves behave when implanted in elderly patients with small aortic root and the comparison with a second group of patients with similar characteristics where a conventional stented bioprosthesis was implanted. This is a prospective randomized institutional study. METHODS: Our material is composed from 25 patients who underwent aortic valve replacement with sutureless self-anchoring Perceval S valve implantation (LivaNova), compared with 25 patients with conventional stented biological prosthesis implanted (soprano LivaNova group)...
April 11, 2016: Journal of Cardiothoracic Surgery
https://www.readbyqxmd.com/read/26597590/erratum-to-genetic-diversity-of-ixodes-pavlovskyi-and-i-persulcatus-acari-ixodidae-from-the-sympatric-zone-in-the-south-of-western-siberia-and-kazakhstan
#18
Natalia N Livanova, Artem Yu Tikunov, Alexander M Kurilshikov, Stanislav G Livanov, Nataliya V Fomenko, Dmitrii E Taranenko, Anna E Kvashnina, Nina V Tikunova
No abstract text is available yet for this article.
January 2016: Experimental & Applied Acarology
https://www.readbyqxmd.com/read/26201397/genetic-diversity-of-ixodes-pavlovskyi-and-i-persulcatus-acari-ixodidae-from-the-sympatric-zone-in-the-south-of-western-siberia-and-kazakhstan
#19
Natalia N Livanova, Artem Yu Tikunov, Alexander M Kurilshikov, Stanislav G Livanov, Nataliya V Fomenko, Dmitrii E Taranenko, Anna E Kvashnina, Nina V Tikunova
The most epidemiologically significant tick species in Siberia involved in transmission of a large number of pathogens causing human infectious diseases is Ixodes persulcatus. Ixodes pavlovskyi, being more active, also poses epidemiological threats. These tick species share morphology, activity seasons and geographic distribution range. In this paper, we characterize the geographic and genetic structures of I. persulcatus and I. pavlovskyi populations inhabiting the southern part of Western Siberia (Russia and Kazakhstan)--the western part of I...
November 2015: Experimental & Applied Acarology
https://www.readbyqxmd.com/read/26154300/comparative-metagenomic-profiling-of-symbiotic-bacterial-communities-associated-with-ixodes-persulcatus-ixodes-pavlovskyi-and-dermacentor-reticulatus-ticks
#20
COMPARATIVE STUDY
Alexander Kurilshikov, Natalya N Livanova, Nataliya V Fomenko, Alexey E Tupikin, Vera A Rar, Marsel R Kabilov, Stanislav G Livanov, Nina V Tikunova
Ixodes persulcatus, Ixodes pavlovskyi, and Dermacentor reticulatus ticks inhabiting Western Siberia are responsible for the transmission of a number of etiological agents that cause human and animal tick-borne diseases. Because these ticks are abundant in the suburbs of large cities, agricultural areas, and popular tourist sites and frequently attack people and livestock, data regarding the microbiomes of these organisms are required. Using metagenomic 16S profiling, we evaluate bacterial communities associated with I...
2015: PloS One
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