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Transcatheter mitral valve implantation

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https://www.readbyqxmd.com/read/29774982/transcatheter-mitral-valve-implantation-in-rigid-mitral-annuloplasty-rings-potential-differences-between-complete-and-incomplete-rings
#1
Daisuke Hachinohe, Azeem Latib, Matteo Montorfano, Antonio Colombo
Transcatheter mitral valve implantation (TMVI) has been performed in high-risk and inoperable patients for degenerated mitral bioprostheses (TMVIinV) and failed annuloplasty rings (TMVIinR). TMVIinR is more challenging compared to TMVIinV because of the differences in dimensions, shapes, and contours between rings and valves. In this report, we present two clinical cases of TMVIinR that were treated by trans-septal implantation of a balloon-expandable prosthesis. In TMVI cases with an incomplete ring, the ring will be stretched out toward its anterior and commissural side, and the open side of the ring will increase in width...
May 18, 2018: Catheterization and Cardiovascular Interventions
https://www.readbyqxmd.com/read/29743996/emerging-transcatheter-options-for-tricuspid-regurgitation
#2
REVIEW
Ankur Kalra, Angad S Uberoi, Azeem Latib, Sahil Khera, Stephen H Little, Deepak L Bhatt, Michael J Reardon, Neal S Kleiman, Colin M Barker
Tricuspid regurgitation (TR) presents as either primary valve pathology or secondary to pulmonary or left-sided heart disease. Severe TR portends a worse prognosis independent of age, right ventricular size and function, severe left ventricular dysfunction, and increased pulmonary arterial pressures. Surgical treatment for TR has mostly been limited to patients undergoing mitral valve repair since those at high surgical risk are not candidates for traditional TR surgery. For these patients, minimally invasive techniques could be of great benefit, yet these techniques have been slow to develop because of the various anatomic and physiological aspects of the tricuspid valve apparatus...
July 2017: Methodist DeBakey Cardiovascular Journal
https://www.readbyqxmd.com/read/29739020/how-do-transcatheter-heart-valves-fit-in-mitral-annuloplasty-rings-and-which-combination-can-be-recommended
#3
Roya Ostovar, Ralf-Uwe Kuehnel, Michael Erb, Martin Hartrumpf, Thomas Claus, Robert Haase, Johannes M Albes
BACKGROUND:  Transcatheter heart valve (THV) as valve-in-ring is increasingly used in the mitral position. Semi-rigid rings may serve as a more appropriate scaffold for proper anchoring of a THV as they may change from their oval to a round shape thereby fitting to the implanted THV. METHODS:  One rigid and five semi-rigid rings of four manufacturers, Edwards Physio I and II, Sorin 3D Memo, Medtronic Simulus, and St. Jude Medical (SJM) Saddle and SJM Sequin, with sizes 28 to 36 mm and Edwards Sapien III THV 23, 26, and 29 mm were used...
May 8, 2018: Thoracic and Cardiovascular Surgeon
https://www.readbyqxmd.com/read/29731112/degenerative-mitral-stenosis-from-pathophysiology-to-challenging-interventional-treatment
#4
REVIEW
Marko Banovic, Mark DaCosta
Mitral stenosis (MS) is characterized by obstruction of left ventricular inflow as a result of narrowing of the mitral valve orifice. Although its prevalence has declined over the last decade, especially in developed countries, it remains an important cause of morbidity and mortality.  The most often cause of MS worldwide is still postrheumatic mitral valve disease. However, in developed countries, degenerative or calcific changes cause MS in a siginificant proportion of patients. Although the range of treatment for mitral valve disease has grown over the years in parallel with transcatheter therapies for aortic valve disease, these improvements in mitral valve disease therapy have experienced slower development...
April 6, 2018: Current Problems in Cardiology
https://www.readbyqxmd.com/read/29724516/the-predictive-value-of-baseline-pulmonary-hypertension-in-early-and-long-term-cardiac-and-all-cause-mortality-after-transcatheter-aortic-valve-implantation-for-patients-with-severe-aortic-valve-stenosis-a-systematic-review-and-meta-analysis
#5
Damianos G Kokkinidis, Christos A Papanastasiou, Anil Kumar Jonnalagadda, Evangelos K Oikonomou, Christina A Theochari, Leonidas Palaiodimos, Haralambos I Karvounis, Ehrin J Armstrong, Robert T Faillace, George Giannakoulas
BACKGROUND: Transcatheter aortic valve implantation (TAVI) is a safe and effective alternative to surgical aortic valve replacement (SAVR) for the treatment of severe aortic valve stenosis (AS). The impact of concomitant baseline elevated pulmonary artery pressures on outcomes after TAVI has not been established, since different studies used different definitions of pulmonary hypertension (PH). OBJECTIVE: To determine the association of PH with early and late cardiac and all-cause mortality after TAVI...
March 23, 2018: Cardiovascular Revascularization Medicine: Including Molecular Interventions
https://www.readbyqxmd.com/read/29684546/connubial-bliss-or-distress-transcatheter-mitral-valve-implantation-with-mechanical-aortic-prostheses
#6
EDITORIAL
Mohamad Alkhouli, Vinay Badhwar
No abstract text is available yet for this article.
April 20, 2018: Seminars in Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/29660359/transcatheter-mitral-valve-in-valve-dislocation-a-rescue-strategy
#7
Alessandro Leone, Jacopo Alfonsi, Emanuele Pilato, Luigi Lovato, Luca Di Marco, Giacomo Murana, Francesco Saia, Davide Pacini, Roberto Di Bartolomeo
In the TAVR (transcatheter aortic valve replacement) era, trans-apical valve-in-valve mitral valve implantation (TA-MVI) is considered an alternative treatment for high risk patients with degenerated mitral bioprosthesis. We report an unusual strategy to remedy to a potentially fatal complication as the mitral prosthesis migration into the aortic arch. The dislocated prosthesis was successfully stabilized in the aortic arch with a bare aortic stent, ensuring an adequate perfusion of epiaortic vessels.
April 13, 2018: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/29652282/perioperative-management-of-transcatheter-aortic-and-mitral-double-valve-in-valve-implantation-during-pregnancy-through-left-ventricular-apical-approach
#8
Suresh Chengode, Rahul Vijaykumar Shabadi, Ram Narayan Rao, Nasser Alkemyani, Hilal Alsabti
Pregnant women with stenotic degeneration of bioprosthetic cardiac valves may require another valve replacement procedure when their symptoms deteriorate with progression of pregnancy, but fetal mortality is higher with cardiac surgery done on cardiopulmonary bypass. Transcatheter valve-in-valve implantation may help to improve the fetal and maternal outcomes in these situations. Double valve-in-valve implantation is rare and has not been reported in a pregnant patient. We report, for the first time, the case of a pregnant woman with stenotic bioprosthetic valves in the mitral and aortic positions, who underwent a successful concomitant, transcatheter, double valve-in-valve implantation through the left ventricular apical route during the second trimester of her precious pregnancy...
April 2018: Annals of Cardiac Anaesthesia
https://www.readbyqxmd.com/read/29627180/transatrial-implantation-of-a-transcatheter-heart-valve-for-severe-mitral-annular-calcification
#9
Fabien Praz, Omar K Khalique, Raymond Lee, Ramesh Veeragandham, Hyde Russell, Mayra Guerrero, Ashequl M Islam, David W Deaton, Tsuyoshi Kaneko, Susheel K Kodali, Martin B Leon, Vinayak Bapat, Hiroo Takayama, Michael A Borger, Isaac George
OBJECTIVE: To assess the outcomes of transatrial implantation of a transcatheter heart valve (THV) for the treatment of mitral valve disease with severe mitral annular calcification (MAC). METHODS: Implantation of a balloon-expandable THV was performed on cardiopulmonary bypass via left atrial exposure in patients considered at risk for left ventricular outflow tract obstruction. The anterior mitral valve leaflet was systematically resected and pledgeted sutures were placed to enhance stability and reduce paravalvular leak...
March 12, 2018: Journal of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/29625648/role-of-echocardiography-in-transcatheter-mitral-valve-replacement-in-native-mitral-valves-and-mitral-rings
#10
REVIEW
G Burkhard Mackensen, James C Lee, Dee Dee Wang, Paul J Pearson, Philipp Blanke, Danny Dvir, James N Kirkpatrick
Adaptation and evolution of transcatheter aortic valve replacement (TAVR) technologies has led to approval of TAVR for consideration in patients at intermediate risk for surgical aortic valve intervention. As TAVR becomes more mainstream, attention is shifting toward percutaneous mitral valve (MV) repair and transcatheter MV replacement (TMVR) techniques. Transcatheter heart valves (both purpose-built and off-label-use TAVR valves) are being implanted during TMVR procedures to treat clinically significant MV disease (native disease, degenerated bioprosthetic valves, and dysfunctional surgical MV annuloplasty repairs) when the risk of open heart MV surgery is prohibitive...
April 2018: Journal of the American Society of Echocardiography
https://www.readbyqxmd.com/read/29622987/outcome-of-transcatheter-aortic-valve-implantation-in-high-risk-patients-with-severe-aortic-stenosis
#11
Hamdy Soliman, Khlid Alrabaat, Tarek Aboalaazm, Shaimaa Mostafa, Asaad Samy
Aim: To assess outcome of TAVI in high risk patients with severe symptomatic aortic stenosis. Patients and methods: 40 patients with symptomatic severe aortic stenosis and high risk underwent TAVI with implantation of either Sapien XT valve or Core Valve and followed for 6 months. Device success, cardiovascular mortality, myocardial infarction, stroke, life-threatening bleeding and vascular complications were defined according to Valve Academic Research Consortium definitions...
December 2017: The Egyptian heart journal: (EHJ): official bulletin of the Egyptian Society of Cardiology
https://www.readbyqxmd.com/read/29608496/antithrombotic-management-of-patients-with-prosthetic-heart-valves
#12
Abdallah Sanaani, Srikanth Yandrapalli, Joseph Michael Harburger
Valvular heart disease is a major public health issue. The prevalence of valvular heart disease is expected to increase due to an aging population. Valve dysfunction manifests as valve stenosis, regurgitation, or both, due to various etiologies. Valve repair and replacement are the main treatment options for severe valve dysfunction. Valve replacement is achieved by using either a mechanical or a bioprosthetic valve. Mechanical valves are more durable but require lifelong anticoagulation with associated complications...
March 30, 2018: Cardiology in Review
https://www.readbyqxmd.com/read/29605597/hybrid-open-minimally-invasive-transcatheter-mitral-valve-replacement
#13
Sivan G Marcus, Vaikom S Mahadevan, Tobias Deuse
We describe a hybrid surgical-interventional technique for minimally-invasive implantation of a transcatheter aortic valve in the mitral position. This technique does not require circular mitral annular calcification and minimizes the risk for left ventricular outflow tract obstruction. We believe this technique represents a useful approach for surgeons and interventional cardiologists until specialized transcatheter mitral valve devices become available.
March 29, 2018: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/29572082/correlation-of-tricuspid-regurgitation-and-new-pacemaker-implantation-in-patients-undergoing-transcatheter-aortic-valve-implantation
#14
Dimitry Schewel, Jury Schewel, Michael Schlüter, Felix Kreidel, Tobias Schmidt, Michael Schmoeckel, Albrecht Elsässer, Karl-Heinz Kuck, Christian Frerker
AIMS: Conduction abnormalities (CA), in particular complete atrioventricular block (CAVB), requiring permanent pacemaker (PPM) implantation, are frequent complications after transcatheter aortic valve implantation (TAVI) in patients with severe aortic stenosis (AS). However, the potential mechanisms are still incompletely understood. The objective of this retrospective study was to determine further predictors of CAVB after TAVI in patients without the known predictors. METHODS AND RESULTS: This study included patients without prior CA/PPM who underwent TAVI of a balloon-expandable valve (Sapien or Sapien XT or Sapien 3)...
June 15, 2018: International Journal of Cardiology
https://www.readbyqxmd.com/read/29570849/usefulness-of-two-and-three-dimensional-transesophageal-echocardiography-in-combined-mitral-valve-in-valve-implantation-and-paraprosthetic-leak-closure
#15
Mustafa I Ahmed, Mohammed J Arisha, Navin C Nanda, Clifton T P Lewis, Kyle W Eudailey
We demonstrate the usefulness of two- and live/real time three-dimensional transesophageal echocardiography in a procedure, which combined transcatheter mitral valve-in-valve deployment and paraprosthetic leak closure in the same setting using the less invasive transfemoral approach in an adult patient with bioprosthetic mitral valve degeneration. We also highlight the additive value of three-dimensional echocardiography over the two-dimensional technique.
March 23, 2018: Echocardiography
https://www.readbyqxmd.com/read/29542191/relationship-between-the-membranous-septum-and-the-virtual-basal-ring-of-the-aortic-root-in-candidates-for-transcatheter-implantation-of-the-aortic-valve
#16
Shumpei Mori, Justin T Tretter, Takayoshi Toba, Yu Izawa, Natsuko Tahara, Tatsuya Nishii, Shinsuke Shimoyama, Hidekazu Tanaka, Toshiro Shinke, Ken-Ichi Hirata, Diane E Spicer, Farhood Saremi, Robert H Anderson
Knowledge of the anatomy of the membranous septum, as a surrogate to the location of the atrioventricular conduction axis, is a prerequisite for those undertaking transcatheter implantation of the aortic valve (TAVI). Equally important is its relationship of the virtual basal ring. This feature, however, has yet to be adequately described in the living heart. We analyzed computed tomographic angiographic datasets from 107 candidates (84.1 ± 5.2 years, 68% women) for TAVI. Using multiplanar reconstructions, we measured the height and width of the membranous septum, and the distances of its superior and inferior margins from the virtual basal ring plane...
May 2018: Clinical Anatomy
https://www.readbyqxmd.com/read/29541607/the-role-of-echocardiography-in-transcatheter-aortic-valve-implantation
#17
REVIEW
Toshinari Onishi, Kaoruko Sengoku, Yasuhiro Ichibori, Isamu Mizote, Koichi Maeda, Toru Kuratani, Yoshiki Sawa, Yasushi Sakata
Transcatheter aortic valve implantation (TAVI) is an effective and less invasive treatment for the increasing population of individuals with severe aortic stenosis (AS). Echocardiography is crucial in the assessment of AS patients from pre- to post-procedure. Transthoracic echocardiography (TTE) may be used to assess patient suitability for TAVI, as well as evaluate the severity of AS, the aortic valve complex, aortic valve morphology, mitral regurgitation (MR), and left ventricular function. Transesophageal echocardiography (TEE) is usually used as an intra-procedural monitoring tool to provide feedback during the procedure, to assess prosthetic valve function, and to detect complications rapidly before and after balloon aortic valvuloplasty (BAV) or transcatheter heart valve (THV) deployment...
February 2018: Cardiovascular Diagnosis and Therapy
https://www.readbyqxmd.com/read/29518534/tiara-valve-implantation-in-a-patient-with-previously-implanted-mono-disk-mechanical-aortic-prosthesis
#18
Enrico Ferrari, Luigi Biasco, Francesco Faletra, Anson Cheung, Marco Moccetti, Giovanni Pedrazzini, Stefanos Demertzis, Tiziano Moccetti
Transcatheter mitral valve replacement with the Tiara valve can be performed in inoperable patients with severe functional regurgitation. Risk of left ventricular outflow tract obstruction can be prevented using preoperative 3D imaging and 3D-printed models. However, in the case of mono-disk mechanical prostheses previously implanted in aortic position (Bjork-Shiley), there is an additional risk of mechanical interference leading to reduced leaflet motion and aortic valve dysfunction. Hereafter, we describe the case of a patient with a 27-mm mono-disk mechanical aortic valve implanted in 1978, a EuroSCORE II of 18%, and a Society of Thoracic Surgeon score (mortality) of 16% who successfully underwent a transapical Tiara valve implantation...
March 5, 2018: Seminars in Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/29518218/kissing-balloon-technique-to-secure-the-neo-left-ventricular-outflow-tract-in-transcatheter-mitral-valve-implantation
#19
Zouhair Rahhab, Ben Ren, Peter P T de Jaegere, Nicolas M D A Van Mieghem
No abstract text is available yet for this article.
March 6, 2018: European Heart Journal
https://www.readbyqxmd.com/read/29514193/posterior-papillary-muscle-rupture-after-transapical-transcatheter-aortic-valve-implantation
#20
Masahide Komagamine, Nobuyuki Furukawa, Jan Gummert, Jochen Börgermann
Transapical transcatheter aortic valve implantation is a well-established alternative in patients at a high risk for conventional aortic valve replacement. We performed transapical transcatheter aortic valve implantation on an 83-year-old woman with symptomatic severe aortic stenosis. Intraoperative transoesophageal echocardiography (TOE) after transcatheter aortic valve implantation showed mild mitral regurgitation without intracardiac structural injury. In the intensive care unit, the patient gradually had haemodynamic instability; TOE revealed severe mitral regurgitation with A2 and A3 prolapse due to rupture of the posterior papillary muscle...
March 5, 2018: European Journal of Cardio-thoracic Surgery
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