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Valve durability

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https://www.readbyqxmd.com/read/28332088/simple-technique-of-repair-for-barlow-syndrome-with-posterior-resection-and-chordal-transfer-via-minimally-invasive-approach-primary-experience-in-a-consecutive-series-of-22-patients
#1
H Kamiya, Payam Akhyari, J-P Minol, A C Ites, T Weinreich, S Sixt, P Rellecke, U Boeken, A Albert, A Lichtenberg
OBJECTIVE: Current techniques for mitral valve repair (MVR) in Barlow's disease require high level of surgical expertise due to a complex anatomy. A novel and simple standardized technique that particularly considers the pathological changes of the mitral valve in Barlow's disease has been developed. METHODS: Between 2009 and 2013, 22 patients underwent minimally invasive MVR for Barlow's disease and severe mitral regurgitation (MR). A simple, standardized technique was applied, including resection of P2 segment of posterior mitral leaflet (PML) with preservation of the shortest chordae, transfer of the preserved chordae to A2, and implantation of a semi-rigid open ring...
March 22, 2017: General Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/28329451/preliminary-experience-with-the-use-of-an-extracellular-matrix-to-augment-the-native-pulmonary-valve-during-repair-of-tetralogy-of-fallot
#2
Anil Dharmapuram, Nagarajan Ramadoss, Sudeep Verma, Vejendla Gouthami, Ivatury Rao
BACKGROUND: During repair of tetralogy of Fallot (TOF), when a transannular patch is needed in case of a small annulus and dysplastic pulmonary valve, we chose to reconstruct the right ventricular outflow tract by augmenting the divided anterior leaflet with an extracellular matrix (ECM) patch to produce a competent valve. In this study, we present our preliminary experience and early outcomes. METHODS: From March 2013 to December 2015, of the 206 patients who underwent primary repair of TOF, 52 required a transannular incision...
March 2017: World Journal for Pediatric & Congenital Heart Surgery
https://www.readbyqxmd.com/read/28329156/medtronic-duran-ancore-versus-edwards-mc3-rings-for-tricuspid-annuloplasty
#3
Seok In Lee, Ho Jin Kim, Joon Bum Kim, Sung-Ho Jung, Suk Jung Choo, Cheol Hyun Chung, Jae Won Lee
OBJECTIVES: Ring annuloplasty is now regarded as the standard surgical technique for the correction of tricuspid regurgitation (TR). However, comparative research on the durability of commercially available annuloplasty rings is limited. We reviewed early and late surgical results of tricuspid annuloplasty using the Duran AnCore and Edwards MC3 rings. METHODS: From our institutional prospective cardiac surgical database, we identified 581 adult patients (55.9 ± 12...
February 17, 2017: Interactive Cardiovascular and Thoracic Surgery
https://www.readbyqxmd.com/read/28329138/small-intestinal-submucosa-tricuspid-valve-tube-graft-shows-growth-potential-remodelling-and-physiological-valve-function-in-a-porcine-model%C3%A2
#4
Diana M Ropcke, Christine Ilkjaer, Marcell J Tjornild, Soren N Skov, Steffen Ringgaard, Vibeke E Hjortdal, Sten L Nielsen
OBJECTIVES: Tricuspid valve reconstruction using small intestinal submucosal extracellular matrix (ECM) designed as a tube graft is possible in severe valve pathology. Using cardiac magnetic resonance imaging (MRI) and digital photograph imaging, valves were evaluated after 6 months in a porcine model. METHODS: Ten 60 kg pigs received a tricuspid valve tube graft. A baseline MRI was performed after 2 weeks ( n  = 8). A follow-up MRI was performed in three of five 6 months' survivors to assess function and haemodynamics of the tricuspid tube graft...
February 27, 2017: Interactive Cardiovascular and Thoracic Surgery
https://www.readbyqxmd.com/read/28324874/strategies-and-outcomes-of-repeat-mitral-valve-interventions-after-failed-mitraclip-therapy
#5
Carmelo Grasso, Sergio Buccheri, Davide Capodanno, Antonio Popolo Rubbio, Maria Elena Di Salvo, Salvatore Scandura, Sarah Mangiafico, Tatiana Salerno, Stefano Cannata, Veronica Dezio, Giuseppe Castania, Marco Barbanti, Piera Capranzano, Corrado Tamburino
Percutaneous mitral valve repair (PMVR) with the MitraClip system (Abbott Vascular, Santa Clara, CA, USA) is a valid therapeutic option for patients with severe mitral regurgitation (MR) deemed to be at high or prohibitive surgical risk. Despite the reassuring data on efficacy and long-term durability of the procedure, the proportion of patients with residual or relapsing severe MR after MitraClip therapy is not negligible. In light of the detrimental prognostic impact of severe MR, repeat interventions are increasingly performed in clinical practice using different techniques...
March 22, 2017: Cardiology
https://www.readbyqxmd.com/read/28296655/endoscopic-fundoplication-effectiveness-for-controlling-symptoms-of-gastroesophageal-reflux-disease
#6
Michael I Ebright, Praveen Sridhar, Virginia R Litle, Chaitan K Narsule, Benedict D Daly, Hiran C Fernando
OBJECTIVE: Transoral incisionless fundoplication (TIF) is a completely endoscopic approach to treat gastroesophageal reflux disease (GERD). We previously reported our initial results demonstrating safety and early effectiveness. We now present an updated experience describing outcomes with longer follow-up. METHODS: For a three-year period, TIF procedures were performed on 80 patients. Preoperative workup routinely consisted of contrast esophagram and manometry...
March 14, 2017: Innovations: Technology and Techniques in Cardiothoracic and Vascular Surgery
https://www.readbyqxmd.com/read/28290174/when-not-to-go-solo-contraindications-based-on-implant-experience
#7
Laurens W Wollersheim, Wilson W Li, Abdullah Kaya, Wim J van Boven, Jan van der Meulen, Bas A de Mol
BACKGROUND: Because of the design and specific implantation technique of the stentless Freedom SOLO bioprosthesis, patient selection is crucial. The aim of the study was to discuss the contraindications to this prosthesis based on the authors' implant experience. METHODS: Between April 2005 and February 2015, one surgeon at the authors' center performed 292 aortic valve replacements using a bioprosthesis, with the initial intention of implanting a SOLO valve in every patient...
November 2016: Journal of Heart Valve Disease
https://www.readbyqxmd.com/read/28290166/long-term-outcome-of-the-sorin-freedom-solo-stentless-aortic-valve
#8
Torsten Christ, Benjamin Claus, Christina Zielinski, Volkmar Falk, Herko Grubitzsch
BACKGROUND: The Sorin Freedom SOLO valve is a third-generation stentless aortic valve which shows beneficial hemodynamic performance compared to stented bioprostheses. Long-term results regarding hemodynamics, the durability of the valve, and patient outcome are scarce, and their acquisition was the aim of this single-center study. METHODS: Between 2005 and 2006, a total of 68 consecutive patients (30 males, 38 females; mean age at surgery 76.1 ± 6.3 years) underwent aortic valve replacement with a Sorin Freedom SOLO prosthesis...
November 2016: Journal of Heart Valve Disease
https://www.readbyqxmd.com/read/28276717/rv-to-pa-conduits-impact-of-transcatheter-pulmonary-valve-replacement-in-adults-a-national-register-study
#9
Kristofer Skoglund, Gunnar Svensson, Ulf Thilén, Mikael Dellborg, Peter Eriksson
OBJECTIVE: The use of a conduit is an established surgical method for reconstruction of the right ventricular outflow tract in congenital heart disease; however, its limited durability makes reintervention almost inevitable. We studied the trends in new implantation, reoperation, and transcatheter pulmonary valve replacement (TPVR) from a Swedish national perspective. DESIGN AND RESULTS: The Swedish registry of congenital heart disease (SWEDCON) was used to collect data...
February 15, 2017: Scandinavian Cardiovascular Journal: SCJ
https://www.readbyqxmd.com/read/28273682/determinants-of-recurrent-tricuspid-regurgitation-following-tricuspid-valve-annuloplasty-during-mitral-valve-surgery
#10
Hisato Ito, Toru Mizumoto, Yasuhiro Sawada, Kazuya Fujinaga, Hironori Tempaku, Hideto Shimpo
BACKGROUND: The purpose of this study was to determine risk predictors for recurrent tricuspid regurgitation (TR) following tricuspid valve annuloplasty during mitral valve surgery. METHODS: Ninety-eight consecutive patients underwent tricuspid valve annuloplasty concomitant with mitral valve repair (71 patients), replacement (16 patients), or other procedures over a 10-year period. Fifty-seven patients underwent surgery with a flexible band and 41 with a rigid ring...
March 8, 2017: Journal of Cardiac Surgery
https://www.readbyqxmd.com/read/28262292/combined-aortic-root-replacement-and-mitral-valve-surgery-the-quest-to-preserve-both-valves
#11
Hoda Javadikasgari, Eric E Roselli, Muhammad Aftab, Rakesh M Suri, Milind Y Desai, Mitra Khosravi, Frank Cikach, Monica Isabella, Jay J Idrees, Sajjad Raza, Bassman Tappuni, Brian P Griffin, Lars G Svensson, A Marc Gillinov
OBJECTIVES: Coexisting aortic root and mitral valve pathology is increasingly recognized among patients undergoing surgery. We characterized the pathology and surgical outcomes of patients with combined aortic root and mitral disease. METHODS: From 1987 to 2016, 118 patients (age 52.40 ± 17.71 years) underwent concomitant aortic root and mitral procedures (excluding aortic stenosis, endocarditis, and reoperations). Aortic root pathologies included degenerative aneurysm (94%) and aortic dissection (6%)...
January 31, 2017: Journal of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/28253994/in-situ-heart-valve-tissue-engineering-using-a-bioresorbable-elastomeric-implant-from-material-design-to-12-months-follow-up-in-sheep
#12
Jolanda Kluin, Hanna Talacua, Anthal I P M Smits, Maximilian Y Emmert, Marieke C P Brugmans, Emanuela S Fioretta, Petra E Dijkman, Serge H M Söntjens, Renée Duijvelshoff, Sylvia Dekker, Marloes W J T Janssen-van den Broek, Valentina Lintas, Aryan Vink, Simon P Hoerstrup, Henk M Janssen, Patricia Y W Dankers, Frank P T Baaijens, Carlijn V C Bouten
The creation of a living heart valve is a much-wanted alternative for current valve prostheses that suffer from limited durability and thromboembolic complications. Current strategies to create such valves, however, require the use of cells for in vitro culture, or decellularized human- or animal-derived donor tissue for in situ engineering. Here, we propose and demonstrate proof-of-concept of in situ heart valve tissue engineering using a synthetic approach, in which a cell-free, slow degrading elastomeric valvular implant is populated by endogenous cells to form new valvular tissue inside the heart...
May 2017: Biomaterials
https://www.readbyqxmd.com/read/28248406/trans-catheter-aortic-valve-implantation-contemporary-practice-and-the-future
#13
Omar Aldalati, Philip MacCarthy, Rafał Dworakowski
With increasing life expectancy, the epidemic of valvular heart disease, especially aortic stenosis (AS), is becoming more prevalent. Transcatheter aortic valve implantation (TAVI) has emerged as an alternative therapy for patients with significant aortic valve disease. It offers a less invasive procedure in comparison to surgical aortic valve replacement (sAVR) and an attractive substitute from the patient's perspective. The evidence for TAVI in inoperable and high risk surgical patients is now established and in the intermediate risk group has been accumulating rapidly and is looking favourable for TAVI...
March 1, 2017: Cardiology Journal
https://www.readbyqxmd.com/read/28203536/clinical-outcomes-of-robotic-mitral-valve-repair-a-single-center-experience-in-korea
#14
Ho Jin Kim, Joon Bum Kim, Sung-Ho Jung, Jae Won Lee
BACKGROUND: Since the inception of robotic mitral valve repair (MV) in 2007 at our institution, it has become an acceptable surgical option with proven efficacy and safety. The objective of this study is to analyze the early and long-term clinical outcomes of patients undergoing robotic MV repair. METHODS: A total of 310 patients (aged 48.4±13.7 years, 201 males) undergoing robotic MV repair using the da Vinci system (Intuitive Surgical, Inc., Sunnyvale, CA) between August 2007 and December 2015 in our institution were evaluated...
January 2017: Annals of Cardiothoracic Surgery
https://www.readbyqxmd.com/read/28187474/new-mitral-annuloplasty-ring-enables-oversizing-of-transcatheter-heart-valve-and-prevents-central-or-paravalvular-leakage
#15
Georg Daniel Duerr, Jan-Malte Sinning, Armin Georg Welz, Fritz Mellert
Background Transcatheter valve-in-ring strategies have been developed to treat recurrent mitral regurgitation (MR) after failing surgical annuloplasty. However, suboptimal THV expansion with consecutive paravalvular leakage (PVL) is a procedure-immanent issue. Methods A rigid, saddle-shaped ring was cut at four locations. The segments were reconnected with pull-springs, rearranged to the original shape, and covered with a sewing cuff. The length of the annuloplasty ring construct, including extended pull-springs, was defined by the perimeter of an appropriate THV...
February 10, 2017: Thoracic and Cardiovascular Surgeon
https://www.readbyqxmd.com/read/28164025/pulmonary-autograft-in-aortic-position-is-everything-known
#16
COMMENT
Francesco Nappi, Antonio Nenna, Cristiano Spadaccio, Massimo Chello
The Ross operation provides several advantages compared to other valve substitutes to manage aortic valve disease, such as growth potential, excellent hemodynamics, freedom from oral anticoagulation and hemolysis, and better durability. However, progressive dilatation of the pulmonary autografts after Ross operation reflects the inadequate remodeling of the native pulmonary root in the systemic circulation, which results in impaired adaptability to systemic pressure and risk of reoperation after the first decade...
January 2017: Translational pediatrics
https://www.readbyqxmd.com/read/28157718/in-vitro-comparative-assessment-of-decellularized-bovine-pericardial-patches-and-commercial-bioprosthetic-heart-valves
#17
Paola Aguiari, Laura Iop, Francesca Favaretto, Cátia Marisa Lourenco Fidalgo, Filippo Naso, Gabriella Milan, Vincenzo Vindigni, Michel Spina, Franco Bassetto, Andrea Bagno, Roberto Vettor, Gino Gerosa
Notwithstanding their wide exploitation, biological prosthetic heart valves are characterized by limited durability (10-15 years). The treatment of biological tissues with chemical crosslinking agents such as glutaraldehyde accounts for the enhanced risk of structural deterioration associated with the early failure of bioprosthetic valves. To overcome the shortcomings of the currently available solutions, adoption of decellularized biological tissues of animal origin has emerged as a promising approach. The present study aims to assess in vitro cardiovascular scaffolds composed of bovine pericardium decellularized with the novel TRITDOC (TRIton-X100 and TauroDeOxyCholic acid) procedure...
February 3, 2017: Biomedical Materials
https://www.readbyqxmd.com/read/28149886/anticoagulant-independent-mechanical-heart-valves-viable-now-or-still-a-distant-holy-grail
#18
Aurelio Chaux, Richard J Gray, Jonathan C Stupka, Michael R Emken, Lawrence N Scotten, Rolland Siegel
Valvular heart disease remains a large public health problem for all societies; it attracts the attention of public health organizations, researchers and governments. Valve substitution is an integral part of the treatment for this condition. At present, the choice of valve prosthesis is either tissue or mechanical. Tissue valves have become increasingly popular in spite of unresolved problems with durability, hemodynamics, cost and need for anticoagulation therapy. As a consequence, mechanical valve innovation has virtually ceased; the last successful mechanical design is 25 years old...
December 2016: Annals of Translational Medicine
https://www.readbyqxmd.com/read/28137962/valve-repair-a-durable-surgical-option-in-degenerative-mitral-regurgitation
#19
EDITORIAL
Bernard D Prendergast, Michele De Bonis
No abstract text is available yet for this article.
January 31, 2017: Circulation
https://www.readbyqxmd.com/read/28108064/stent-and-leaflet-stresses-in-a-26-mm-first-generation-balloon-expandable-transcatheter-aortic-valve
#20
Yue Xuan, Kapil Krishnan, Jian Ye, Danny Dvir, Julius M Guccione, Liang Ge, Elaine E Tseng
OBJECTIVE: Transcatheter aortic valve replacement is established therapy for high-risk and inoperable patients with severe aortic stenosis, but questions remain regarding long-term durability. Valve design influences durability. Increased leaflet stresses in surgical bioprostheses have been correlated with degeneration; however, transcatheter valve leaflet stresses are unknown. From 2007 to 2014, a majority of US patients received first-generation balloon-expandable transcatheter valves...
December 23, 2016: Journal of Thoracic and Cardiovascular Surgery
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