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Transcatheter mitral valve replacement

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https://www.readbyqxmd.com/read/29906265/transcatheter-mitral-valve-in-valve-and-valve-in-ring-replacement-in-high-risk-surgical-patients-feasibility-safety-and-longitudinal-outcomes-in-a-single-center-experience
#1
Ashleigh Long, Paul Mahoney
BACKGROUND: Transcatheter mitral valve-in-valve (TMVIV) or valve-in-ring (TMVIR) replacement has shown early promise in patients deemed poor surgical candidates as a less invasive alternative to conventional reoperative mitral valve (MV) replacement. OBJECTIVE: This retrospective, single-center study reviewed the procedural outcomes of all TMVIV and TMVIR procedures between 2013-2018 at a large tertiary referral center serving the southeastern United States. An analysis of patient safety measures was also performed, with a retrospective assessment of relative procedural safety that included preoperative risk stratification and postoperative mortality predictors, operative time, average blood loss, length of hospital stay, and readmission rates...
June 15, 2018: Journal of Invasive Cardiology
https://www.readbyqxmd.com/read/29905588/minimally-invasive-direct-access-balloon-expandable-transcatheter-mitral-valve-replacement-for-extensive-mitral-annular-calcification-after-transcatheter-aortic-valve-replacement
#2
Joseph Lamelas, Guilherme V Silva, Subhasis Chatterjee
Mitral annular calcification can pose a formidable surgical challenge in the setting of mitral valve replacement for mitral stenosis. Although there are reports of transapical valve-in-valve transcatheter mitral valve replacement in the setting of degenerated bioprosthetic mitral valve replacement, there is less experience with transcatheter mitral valve replacement for mitral annular calcification. This report describes a patient who previously received a transcatheter aortic valve replacement and then subsequently underwent a minimally invasive right thoracotomy for transcatheter mitral valve replacement with a successful result...
June 14, 2018: Innovations: Technology and Techniques in Cardiothoracic and Vascular Surgery
https://www.readbyqxmd.com/read/29897014/future-technology-of-mitral-valve-repair-and-replacement-for-mitral-valve-disease
#3
Kelly Kohorst, Mias Pretorius
Mitral regurgitation is the most common valvular disease and significant (moderate/severe) mitral regurgitation is found in 2.3% of the population older than 65 years. New transcatheter minimally invasive technologies are being developed to address mitral valve disease in patients deemed too high a risk for conventional open-heart surgery. There are several features of the mitral valve (saddle-shaped noncalcified annulus with irregular leaflet geometry) that make a transcatheter approach to repair or replacing the valve more challenging compared with the aortic valve...
June 1, 2018: Seminars in Cardiothoracic and Vascular Anesthesia
https://www.readbyqxmd.com/read/29897008/interventional-echocardiography-of-the-mitral-valve-what-the-interventionist-wants-to-know
#4
Ludmil Mitrev, Nayan Desai, Ahmed Awad, Sajjad Sabir
The past 2 decades have seen a proliferation of transcatheter mitral valve (MV) therapies, which are less invasive and distinct from surgical MV repair or replacement. The commonly used MV transcatheter therapies include (1) percutaneous mitral balloon commissurotomy (PMBC) for rheumatic mitral stenosis; (2) edge-to-edge repair with the MitraClip for mitral regurgitation; (3) valve-in-valve implantation in bioprosthetic MV, native MV, or mitral ring; and (4) closure of paravalvular leaks (PVLs). This article will focus on the use of echocardiography in the diagnosis, patient selection, procedural guidance, and postprocedural follow-up for PMBC, with notes on the role of transesophageal echocardiography in transcatheter interventions for prosthetic valve degeneration and PVL closure...
June 1, 2018: Seminars in Cardiothoracic and Vascular Anesthesia
https://www.readbyqxmd.com/read/29880112/imaging-for-mitral-interventions-methods-and-efficacy
#5
REVIEW
Nina C Wunderlich, Roy Beigel, Siew Y Ho, Fabian Nietlispach, Richard Cheng, Eustachio Agricola, Robert J Siegel
The mitral valve (MV) is a complex and intricate structure. With the development of transesophageal echocardiography in the 1990s, it became possible to evaluate MV anatomy and function in real time during surgical procedures. Subsequently, new surgical and percutaneous techniques for MV repair as well as replacement have evolved. Development of 3-dimensional and intracardiac echocardiography, as well as computed tomography, cardiac resonance imaging, and most recently fusion imaging, have paved the way for a more comprehensive evaluation of the MV as well as for the planning of percutaneous MV procedures such as balloon valvuloplasty, paravalvular mitral leak closure, percutaneous edge-to-edge repair, transcatheter MV annuloplasty, artificial chord implantation, and transcatheter MV replacement...
June 2018: JACC. Cardiovascular Imaging
https://www.readbyqxmd.com/read/29877717/surgical-antegrade-transcatheter-valve-implantation-and-heavily-calcified-heart
#6
Elise Lupon, Anais Lemaire, Christophe Cron, Bertrand Marcheix
It is well known that a heavily calcified mitral valve significantly increases the perioperative and postoperative risks of mitral valve surgery. A 71-year-old woman was referred to our department with severe mitral valve disease. Cardiac imaging revealed extremely severe calcification of the entire left heart. Surgery was performed through a median sternotomy with standard cardiopulmonary bypass. After dilating the mitral orifice with a balloon, we replaced the valve with a transcatheter Edwards Sapiens 3 aortic valve under direct vision...
January 1, 2018: Asian Cardiovascular & Thoracic Annals
https://www.readbyqxmd.com/read/29868864/transapical-valve-in-ring-mitral-valve-implantation-through-the-anterior-mitral-valve-leaflet
#7
Luke J Rogers, Ian Cox, Malcolm Dalrymple-Hay, Clinton Lloyd
Transcatheter mitral valve implantation is a relatively novel intervention that replaces the mitral valve of individuals deemed too high-risk or unsuitable for surgery. It is associated with a number of specific risks, including left ventricular outflow tract obstruction. In this report, we present the case of a 75-year-old man who was unable to undergo redo surgical repair and had a number of risk factors for left ventricular outflow tract obstruction. To minimize this risk, we deployed transcatheter mitral valve implantation within the anterior mitral valve leaflet resulting in mild mitral valve regurgitation postoperatively and no left ventricular outflow tract obstruction...
June 2, 2018: European Journal of Cardio-thoracic Surgery
https://www.readbyqxmd.com/read/29849204/early-experience-with-transcatheter-mitral-valve-replacement-successes-challenges-and-future-directions
#8
EDITORIAL
Chetan P Huded, Milind Y Desai
No abstract text is available yet for this article.
April 2018: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/29849201/the-intrepid-adventure-of-early-transcatheter-mitral-valve-replacement
#9
EDITORIAL
Qasim Stanazai, Mohamad Alkhouli
No abstract text is available yet for this article.
April 2018: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/29799431/double-trouble-transapical-transcatheter-replacement-of-the-aortic-and-mitral-valves-in-a-single-operation
#10
Mohamad Lazkani, Joshua Waggoner, Michael Morris, George Gellert, Kenith Fang, Ashish Pershad
This case represents the first reported simultaneous TAVR and TMVR for native aortic and mitral stenosis performed via the transapical approach.
June 2018: Journal of Invasive Cardiology
https://www.readbyqxmd.com/read/29784681/use-of-intracardiac-echocardiography-in-interventional-cardiology-working-with-the-anatomy-rather-than-fighting-it
#11
REVIEW
Andres Enriquez, Luis C Saenz, Raphael Rosso, Frank E Silvestry, David Callans, Francis E Marchlinski, Fermin Garcia
The indications for catheter-based structural and electrophysiological procedures have recently expanded to more complex scenarios, in which an accurate definition of the variable individual cardiac anatomy is key to obtain optimal results. Intracardiac echocardiography (ICE) is a unique imaging modality able to provide high-resolution real-time visualization of cardiac structures, continuous monitoring of catheter location within the heart, and early recognition of procedural complications, such as pericardial effusion or thrombus formation...
May 22, 2018: Circulation
https://www.readbyqxmd.com/read/29777372/cardiac-surgery-2017-reviewed
#12
REVIEW
Torsten Doenst, Hristo Kirov, Alexandros Moschovas, David Gonzalez-Lopez, Rauf Safarov, Mahmoud Diab, Steffen Bargenda, Gloria Faerber
For the year 2017, more than 21,000 published references can be found in PubMed when entering the search term "cardiac surgery". This review focusses on conventional cardiac surgery, considering the new interventional techniques only if they were directly compared to classic techniques but also entails aspects of perioperative intensive care management. The publications last year provided a plethora of new and interesting information that helped to quantify classic surgical treatment effects and provided new guidelines for the management of structural heart disease, which made comparisons to interventional techniques easier...
May 17, 2018: Clinical Research in Cardiology: Official Journal of the German Cardiac Society
https://www.readbyqxmd.com/read/29774601/the-impact-of-mitral-stenosis-on-outcomes-of-aortic-valve-stenosis-patient-undergoing-surgical-aortic-valve-replacement-or-transcatheter-aortic-valve-replacement
#13
Yasser Al-Khadra, Fahed Darmoch, Motaz Baibars, Amir Kaki, Zaher Fanari, M Chadi Alraies
BACKGROUND: The concomitant presence of mitral stenosis (MS) in the setting of symptomatic aortic stenosis represent a clinical challenge. Little is known regarding the outcome of mitral stenosis (MS) patients undergoing transcatheter aortic valve replacement (TAVR) or surgical aortic valve replacement (SAVR). Therefore, we sought to study the outcome of MS patients undergoing aortic valve replacement (AVR). METHOD: Using weighted data from the National Inpatient Sample (NIS) database between 2011 and 2014, we identified patients who were diagnosed with MS...
May 17, 2018: Journal of Interventional Cardiology
https://www.readbyqxmd.com/read/29770888/mitral-valve-interventions-in-structural-heart-disease
#14
REVIEW
Matteo Saccocci, Maurizio Taramasso, Francesco Maisano
PURPOSE OF REVIEW: Analyze the current state of the art and the future perspectives of mitral interventions in clinical setting. RECENT FINDINGS: A systematic and critical review of the new mitral percutaneous therapies and imaging technologies is the basis to adopt the right treatment for each patient according to specific valve dysfunction and clinical presentation, waiting for definitive guidelines. While surgical mitral repair will remain the gold standard for low-risk healthy patients with degenerative mitral regurgitation (DMR), transcatheter mitral valve repair is becoming first line therapy in high risk patients with functional mitral regurgitation (FMR)...
May 17, 2018: Current Cardiology Reports
https://www.readbyqxmd.com/read/29762933/ross-procedure-following-a-dislodged-transcatheter-aortic-valve-replacement
#15
Samuel R Schnittman, Aaron J Weiss, Robin Varghese, Paul Stelzer
A 36-year-old pregnant woman with a history of rheumatic heart disease and prior aortic valve replacement and mitral valve repair presented to an outside hospital with severe aortic stenosis. The patient had a cardiac arrest upon labor induction and underwent a transcatheter aortic valve replacement (TAVR), which dislodged two days later. Five months later, the patient underwent removal of the dislodged TAVR and a Ross procedure at the authors' institution. The patient was stable upon discharge, with minimal aortic and pulmonary regurgitation...
September 2017: Journal of Heart Valve Disease
https://www.readbyqxmd.com/read/29759741/outcomes-of-repeat-mitral-valve-replacement-in-patients-with-prior-mitral-surgery-a-benchmark-for-transcatheter-approaches
#16
Julius I Ejiofor, Sameer A Hirji, Fernando Ramirez-Del Val, Anthony V Norman, Siobhan McGurk, Sary F Aranki, Prem S Shekar, Tsuyoshi Kaneko
OBJECTIVES: With the emergence of transcatheter mitral valve-in-valve/ring replacement for deteriorated bioprostheses or failed repair, comparative clinical benchmarks for surgical repeat mitral valve replacement (re-MVR) are needed. We present in-hospital and survival outcomes of a 24-year experience with re-MVR. METHODS: From January 1992 to June 2015, 520 adult patients underwent re-MVR; 273 had undergone prior mitral valve repair (pMVP) and 247 had undergone prior MVR (pMVR)...
April 7, 2018: Journal of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/29747948/automated-quantification-of-mitral-valve-geometry-on-multi-slice-computed-tomography-in-patients-with-dilated-cardiomyopathy-implications-for-transcatheter-mitral-valve-replacement
#17
Tom Banks, Orod Razeghi, Ioannis Ntalas, Waqar Aziz, Jonathan M Behar, Rebecca Preston, Brian Campbell, Simon Redwood, Bernard Prendergast, Steven Niederer, Ronak Rajani
OBJECTIVES: The primary aim of this study was to quantify the dimensions and geometry of the mitral valve complex in patients with dilated cardiomyopathy and significant mitral regurgitation. The secondary aim was to evaluate the validity of an automated segmentation algorithm for assessment of the mitral valve compared to manual assessment on computed tomography. BACKGROUND: Transcatheter mitral valve replacement (TMVR) is an evolving technique which relies heavily on the lengthy evaluation of cardiac computed tomography (CT) datasets...
April 21, 2018: Journal of Cardiovascular Computed Tomography
https://www.readbyqxmd.com/read/29745455/infective-endocarditis-following-transcatheter-edge-to-edge-mitral-valve-repair-a-systematic-review
#18
Lluis Asmarats, Tania Rodriguez-Gabella, Chekrallah Chamandi, Mathieu Bernier, Jonathan Beaudoin, Kim O'Connor, Eric Dumont, François Dagenais, Jean-Michel Paradis, Josep Rodés-Cabau
OBJECTIVES: To assess the clinical characteristics, management, and outcomes of patients diagnosed with infective endocarditis (IE) after edge-to-edge mitral valve repair with the MitraClip device. BACKGROUND: Transcatheter edge-to-edge mitral valve repair has emerged as an alternative to surgery in high-risk patients. However, few data exist on IE following transcatheter mitral procedures. METHODS: Four electronic databases (PubMed, Google Scholar, Embase, and Cochrane Library) were searched for original published studies on IE after edge-to-edge transcatheter mitral valve repair from 2003 to 2017...
May 10, 2018: Catheterization and Cardiovascular Interventions
https://www.readbyqxmd.com/read/29743999/transcatheter-mitral-valve-replacement-for-native-and-failed-bioprosthetic-mitral-valves
#19
REVIEW
Kunal Sarkar, Michael J Reardon, Stephen H Little, Colin M Barker, Neal S Kleiman
Transcatheter mitral valve replacement (TMVR) is a novel approach for treatment of severe mitral regurgitation. A number of TMVR devices are currently undergoing feasibility trials using both transseptal and transapical routes for device delivery. Overall experience worldwide is limited to fewer than 200 cases. At present, the 30-day mortality exceeds 30% and is attributable to both patient- and device-related factors. TMVR has been successfully used to treat patients with degenerative mitral stenosis (DMS) as well as failed mitral bioprosthesis and mitral repair using transcatheter mitral valve-in-valve (TMViV)/valve-in-ring (ViR) repair...
July 2017: Methodist DeBakey Cardiovascular Journal
https://www.readbyqxmd.com/read/29731112/degenerative-mitral-stenosis-from-pathophysiology-to-challenging-interventional-treatment
#20
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
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