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https://www.readbyqxmd.com/read/29300071/mitral-valve-annuloplasty
#1
Benedetto Del Forno, Alessandro Castiglioni, Alessandra Sala, Alberto Geretto, Andrea Giacomini, Paolo Denti, Michele De Bonis, Ottavio Alfieri
Mitral valve prosthetic ring annuloplasty represents a key milestone in the history of mitral valve repair, delivering restoration of annular shape and size. Increased leaflet coaptation, together with significant reduction in stress on sutures, has ensured predictability and immediate stability for valve repair, both of which were lacking with previous techniques. Long-term durability of repair seems to be positively affected by placement of an annuloplasty ring, and by following the well-established, standardized approach described in our tutorial, this procedure can be performed with a very low surgical risk...
October 6, 2017: Multimedia Manual of Cardiothoracic Surgery: MMCTS
https://www.readbyqxmd.com/read/29283684/an-overview-of-surgical-treatment-modalities-and-emerging-transcatheter-interventions-in-the-management-of-tricuspid-valve-regurgitation
#2
Karel M Van Praet, Christof Stamm, Christoph T Starck, Simon Sündermann, Alexander Meyer, Matteo Montagner, Timo Z Nazari Shafti, Axel Unbehaun, Stephan Jacobs, Volkmar Falk, Jörg Kempfert
Tricuspid valve regurgitation (TR) is frequently encountered and is most often functional (FTR) in nature. Surgical tricuspid valve (TV) treatment is well established in specialized centers. While transcatheter therapy for other valve disease is well established, interventional treatment of TV disease is still in its early stages. With the increasing adoption of catheter-based treatments, there is a growing interest in and need for interventional treatments for TR. An extensive literature search was methodologically performed aiming for an integrative review paper...
December 28, 2017: Expert Review of Cardiovascular Therapy
https://www.readbyqxmd.com/read/29282097/the-correlation-between-the-coaptation%C3%A2-height-of-mitral-valve-and-mitral-regurgitation-after-mitral-valve-repair
#3
Dan Wei, Jie Han, Haibo Zhang, Yan Li, Chunlei Xu, Xu Meng
BACKGROUND: To investigate the association between the coaptation height of mitral valve and mitral regurgitation after mitral valve repair. METHODS: From Sep 2014 to Jun 2015, 20 patients underwent mitral valve valvuloplasty for mitral regurgitation were included. Ring annuloplasty was performed in all cases. Mitral valve short-axis dimension (MVd), coaptation height (CH), Left ventricular ejection fraction (LVEF) were measured by the transesophageal echocardiography before the operation in operation room and 3 months and 12 months after the operation by the transthoracic echocardiography...
December 28, 2017: Journal of Cardiothoracic Surgery
https://www.readbyqxmd.com/read/29275952/late-onset-of-atrial-fibrillation-in-patients-undergoing-mitral-valve-repair-for-type-ii-dysfunction
#4
Naonori Kawamoto, Tomoyuki Fujita, Satsuki Fukushima, Yusuke Shimahara, Yuta Kume, Yorihiko Matsumoto, Kizuku Yamashita, Junjiro Kobayashi
BACKGROUND: There are few reports regarding factors related to late-onset of atrial fibrillation (Af) after mitral valve repair, which can compromise long-term outcome. We analyzed the risk factors for late Af after mitral valve repair. METHODS AND RESULTS: Between 2001 and 2015, 318 patients (214 males; median, 57.7 years) underwent mitral valve repair for degenerative mitral insufficiency (MI) without concomitant aortic valve disease in our institute. Patients with a history of paroxysmal or chronic Af preoperatively were excluded...
December 21, 2017: Journal of Cardiology
https://www.readbyqxmd.com/read/29247615/how-to-adjust-neo-chordae-length-accurately-in-degenerative-mitral-regurgitation
#5
Jorge Rodriguez-Roda, Javier Miguelena, Jose Lopez, Miren Martin, Rafael Muñoz
We describe a simple technique for the accurate adjustment of polytetrafluoroethylene neo-chordae length in degenerative mitral regurgitation using the annuloplasty ring own suture as reference, instead of using sophisticated or less precise maneuvers. Two threats of the annuloplasty ring suture are placed at the level of the mitral valve annulus plane to be used as a reference to tie the neo-chordae.
December 13, 2017: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/29246915/first-in-human-implantations-of-the-navigate-bioprosthesis-in-a-severely-dilated-tricuspid-annulus-and-in-a-failed-tricuspid-annuloplasty-ring
#6
Jose L Navia, Samir Kapadia, Haytham Elgharably, Serge C Harb, Amar Krishnaswamy, Shinya Unai, Stephanie Mick, Leonardo Rodriguez, Donald Hammer, A Marc Gillinov, Lars G Svensson
No abstract text is available yet for this article.
December 2017: Circulation. Cardiovascular Interventions
https://www.readbyqxmd.com/read/29244156/percutaneous-increase-of-mitral-leaflet-coaptation-length-after-mitral-valve-repair-results-from-a-preclinical-study
#7
Piergiorgio Tozzi, Giuseppe Siniscalchi, Enrico Ferrari, Matthias Kirsch, Daniel Hayoz
OBJECTIVES: The failure of mitral repairs can be the result of inadequate leaflet coaptation length (CL< 8 mm at the A2-P2 level). A new annuloplasty ring conceived by the authors enables post-surgical CL increase using percutaneous balloon catheter technology. We conducted preclinical studies to assess the in vivo feasibility of the procedure and the safety of the postimplant deformable mitral ring. METHODS: The new annuloplasty ring allows the percutaneous and progressive displacement of each of the 3 anatomical regions of the posterior mitral annulus towards the anterior...
December 13, 2017: Interactive Cardiovascular and Thoracic Surgery
https://www.readbyqxmd.com/read/29242005/a-case-of-successful-mitraclip-placement-in-a-patient-with-severe-mitral-regurgitation-after-failed-mitral-valve-ring-annuloplasty
#8
Mark Simpsen, Emmanuel Daon, Mark Wiley, Fernando Mujica
No abstract text is available yet for this article.
November 2, 2017: Journal of Cardiothoracic and Vascular Anesthesia
https://www.readbyqxmd.com/read/29235147/transapical-mitral-valve-in-valve-ring-implantation-with-the-edwards-sapien-3-prosthesis
#9
Javier Gualis, Rodrigo Estevez-Loureiro, David Alonso, Mario Castaño
We present the case of a high-risk patient with symptomatic severe mitral regurgitation following a surgical annuloplasty ring. An inverted aortic Edwards Sapien 3 bioprosthesis (Edwards Lifesciences, Irvine, CA) was successfully implanted through a transapical approach inside the previously implanted annuloplasty ring.
December 12, 2017: Journal of Cardiac Surgery
https://www.readbyqxmd.com/read/29232300/three-dimensional-printing-of-life-like-models-for-simulation-and-training-of-minimally-invasive-cardiac-surgery
#10
Toshiyuki Yamada, Motohiko Osako, Tomoya Uchimuro, Ryogen Yoon, Toshiaki Morikawa, Maki Sugimoto, Hisao Suda, Hideyuki Shimizu
OBJECTIVE: As the use of minimally invasive surgery in cardiothoracic surgery increases, so does the need for simulation and training. We developed a heart model for simulation and training of minimally invasive cardiac surgery, particularly minimally invasive mitral valve repair using our new three-dimensional printing system. METHODS: Digital imaging and communication in medicine data from patient computed tomography, three-dimensional computer-aided design, and three-dimensional printing helped create replicas of the heart and thoracic cavity...
November 2017: Innovations: Technology and Techniques in Cardiothoracic and Vascular Surgery
https://www.readbyqxmd.com/read/29206746/mitral-valve-and-subvalvular-repair-for-secondary-mitral-regurgitation-rationale-and-clinical-outcomes-of-the-papillary-muscle-sling
#11
Christos G Mihos, Romain Capoulade, Evin Yucel, Steve Xydas, Francesco Nappi, Roy F Williams, Orlando Santana
Secondary mitral regurgitation (MR) is a common finding in patients with dilated cardiomyopathy, and it is associated with poor outcomes. It is the result of incomplete systolic closure of the mitral valve (MV) as a consequence of left ventricular dilatation, papillary muscle displacement with impaired systolic shortening, and mitral leaflet tethering. MV surgery may be performed in cases of significant secondary MR despite guideline-directed medical therapy. However, MV repair, which is most commonly performed with an undersized ring annuloplasty, is associated with a 30-60% recurrence of moderate or greater MR at mid-term follow-up...
January 2018: Cardiology in Review
https://www.readbyqxmd.com/read/29206693/long-term-results-of-suture-annuloplasty-for-degenerative-mitral-valve-disease-a-propensity-matched-analysis
#12
Andrea Garatti, Alberto Canziani, Alessandro Parolari, Serenella Castelvecchio, Marco Guazzi, Andrea Daprati, Ali Abu Farah, Francesco Grimaldi, Sonia Tripepi, Lorenzo Menicanti
AIMS: Ring annuloplasty is the gold standard of surgical repair in degenerative mitral valve disease. However, prosthetic annuloplasty has some drawbacks and potential hazards. Suture annuloplasty theoretically is able to preserve annular leaflet dynamics and left ventricular performance, but experience is limited. The aim of the study was to review the early and long-term outcome of the posterior double-suture annuloplasty (DSA) technique for degenerative mitral valve repair. METHODS: From January 2002 to December 2008, 400 patients underwent primary mitral valve repair for degenerative disease either with posterior DSA [n = 147 (37%)] or with flexible posterior annuloplasty band [n = 253 (63%)]...
January 2018: Journal of Cardiovascular Medicine
https://www.readbyqxmd.com/read/29186494/mitral-valve-repair-in-barlow-s-disease-with-bileaflet-prolapse-the-effect-of-annular-stabilization-on-functional-mitral-valve-leaflet-prolapse
#13
Anton Tomšic, Yasmine L Hiemstra, Daniella D Bissessar, Thomas J van Brakel, Michel I M Versteegh, Nina Ajmone Marsan, Robert J M Klautz, Meindert Palmen
OBJECTIVES: Barlow's disease is the most severe form of degenerative mitral valve disease, commonly characterized by bileaflet prolapse. Abnormal mitral annular dynamics is typically present and results in functional prolapse of the mitral leaflets that may be addressed with annular stabilization alone. METHODS: Between January 2001 and December 2015, 128 patients with Barlow's disease and bileaflet prolapse underwent valve repair. This included anterior mitral valve leaflet (AMVL) repair in 70 patients, whereas 58 patients were identified as having functional prolapse and underwent no specific AMVL repair...
November 27, 2017: Interactive Cardiovascular and Thoracic Surgery
https://www.readbyqxmd.com/read/29177448/long-term-results-of-annuloplasty-in-trivial-to-mild-functional-tricuspid-regurgitation-during-mitral-valve-replacement-should-we-perform-annuloplasty-on-the-tricuspid-valve-or-leave-it-alone
#14
Jae Woong Choi, Kyung Hwan Kim, Hyoung Woo Chang, Myoung-Jin Jang, Sue Hyun Kim, Sang Yoon Yeom, Ho Young Hwang
OBJECTIVES: The benefits of concomitant tricuspid annuloplasty (TAP) for non-significant functional tricuspid regurgitation (TR) during mitral valve replacement (MVR) are controversial. We evaluated the long-term outcomes-particularly the long-term tricuspid valve (TV) functional outcomes-of MVR with or without tricuspid ring annuloplasty. METHODS: From 2004 to 2014, 256 patients (56.4 ± 12.1 years) with trivial or mild functional TR who underwent MVR were enrolled...
November 21, 2017: European Journal of Cardio-thoracic Surgery
https://www.readbyqxmd.com/read/29168146/novel-direct-annuloplasty-fastener-system-for-minimally-invasive-mitral-valve-repair
#15
Joshua L Chan, Ming Li, Dumitru Mazilu, Justin G Miller, Andrada C Diaconescu, Keith A Horvath
The development of less invasive approaches for mitral valve repair remains an important objective, particularly in patients with multiple comorbidities. We describe a novel method to affix a mitral valve annuloplasty ring in a minimally invasive manner. A delivery apparatus for an annuloplasty fastener system was designed. Two channels were created, one for advancing the annuloplasty ring, and another to accommodate the fastener applicator. Custom designed fasteners, either with a helical-shaped screw or a strap-shaped tack structure, were tested...
November 22, 2017: Cardiovascular Engineering and Technology
https://www.readbyqxmd.com/read/29149258/edge-to-edge-repair-for-mitral-regurgitation-associated-with-isolated-double-orifice-mitral-valve
#16
Takeshi Oda, Takanori Kono, Keiichi Akaiwa, Katsuhiko Nakamura
We report the case of a patient with severe mitral regurgitation who was diagnosed with double-orifice mitral valve by preoperative transthoracic and transoesophageal echocardiography. During surgery, it was revealed that the mitral valve was divided into 2 orifices, anterolateral and posteromedial, by a fibrous bridging tissue that was supported by the chordae tendineae originating from an accessory middle papillary muscle. The posterior scallop of the anterolateral orifice was prolapsed due to chordal elongation...
November 15, 2017: Interactive Cardiovascular and Thoracic Surgery
https://www.readbyqxmd.com/read/29117501/mitral-valve-in-valve-ring-and-other-percutaneous-treatments-of-surgical-failures
#17
REVIEW
Mackram F Eleid
Re-do mitral valve surgery is associated with high morbidity and mortality. In recent years a variety of percutaneous repair techniques of surgical failures have emerged as safe and effective treatment options for several post-surgical problems including bioprosthetic mitral valve failure, prosthetic regurgitation or stenosis following annuloplasty, and periprosthetic regurgitation. This review will cover the indications, techniques and outcomes of these novel percutaneous therapies.
November 5, 2017: Progress in Cardiovascular Diseases
https://www.readbyqxmd.com/read/29114917/pulmonary-arterial-pressure-detects-functional-mitral-stenosis-after-annuloplasty-for-primary-mitral-regurgitation-an-exercise-stress-echocardiographic-study
#18
Niloufar Samiei, Marzieh Tajmirriahi, Ali Rafati, Yeganeh Pasebani, Yousef Rezaei, Saeid Hosseini
INTRODUCTION: The restrictive mitral valve annuloplasty (RMA) is the treatment of choice for degenerative mitral regurgitation (MR), but postoperative functional mitral stenosis remains a matter of debate. In this study, we sought to determine the impact of mitral stenosis on the functional capacity of patients. METHODS: In a cross-sectional study, 32 patients with degenerative MR who underwent RMA using a complete ring were evaluated. All participants performed treadmill exercise test and underwent echocardiographic examinations before and after exercise...
November 8, 2017: Echocardiography
https://www.readbyqxmd.com/read/29092114/remodeling-mitral-annuloplasty-ring-concept-with-preserved-dynamics-of-annular-height
#19
Søren N Skov, Diana M Røpcke, Marcell J Tjørnild, Christine Ilkjær, Jonas Rasmussen, Hans Nygaard, J M Hasenkam, Morten O Jensen, Sten L Nielsen
BACKGROUND: The configuration of the native annulus changes from nearly flat in the diastolic phase to saddle-shaped in the systolic phase. The present study was conducted to test a novel remodeling annuloplasty ring with built-in septal-lateral fixation and commissural axial flexibility so as to maintain the change in annular saddle shape. The study aim was to evaluate the in-vivo biomechanical performance of the novel annuloplasty ring, compared with the native valve and a semi-rigid and rigid annuloplasty ring...
May 2017: Journal of Heart Valve Disease
https://www.readbyqxmd.com/read/29049749/transvalvular-pressure-gradients-for-different-methods-of-mitral-valve-repair-only-neochordoplasty-achieves-native-valve-gradients
#20
Silje Ekroll Jahren, Samuel Hurni, Paul Philipp Heinisch, Bernhard Winkler, Dominik Obrist, Thierry Carrel, Alberto Weber
OBJECTIVES: Many surgical and interventional methods are available to restore patency for patients with degenerative severe mitral valve regurgitation. Leaflet resection and neochordoplasty, which both include ring annuloplasty, are the most frequently performed techniques for the repair of posterior mitral leaflet flail. It is unclear which technique results in the best haemodynamics. In this study, we investigated the effect of different mitral valve reconstruction techniques on mitral valve haemodynamics and diastolic transvalvular pressure gradient in an ex vivo porcine model...
October 3, 2017: Interactive Cardiovascular and Thoracic Surgery
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