Results 31 to 40 of about 7,296 (215)

Effect of an artificial ring on mitral valve function [PDF]

, 2019
2019-05Differences of the effect of annuloplasty rings on the mitral annulus and leaflets, and differences between types of annuloplasty rings are not well known. We analyzed annular motion and leaflet movement with a rigid or flexible ring and without a
Araki, Yoshimori, Saito, Shunei, Yokote, Jun, Hasegawa, Hiroki, Usui, Akihiko   +4 more
core   +1 more source

Percutaneous Trans-septal Mitral Valve-in-Ring Implantation Using a Transcatheter Balloon-Expandable Transcatheter Heart Valve With Elective Intra-Procedural Artero-Venous ECMO in a Patient With Severely Reduced Left Ventricular Ejection Fraction

Frontiers in Cardiovascular Medicine, 2019
Percutaneous mitral valve-in-valve implantation is an emerging option in patients with surgical bioprosthesis failure or failing mitral annuloplasty and increased surgical risk.
Francesca Ristalli, Silvia Maiani, Brunilda Hamiti, Alessio Mattesini, Francesco Meucci, Miroslava Stolcova, Carlo Di Mario   +6 more
doaj   +1 more source

Ex vivo biomechanical analysis of flexible versus rigid annuloplasty rings in mitral valves using a novel annular dilation system

BMC Cardiovascular Disorders, 2022
Background Mitral annuloplasty rings restore annular dimensions to increase leaflet coaptation, serving a fundamental component in mitral valve repair. However, biomechanical evaluations of annuloplasty rings are lacking.
Yuanjia Zhu, Annabel M. Imbrie-Moore, Robert J. Wilkerson, Michael J. Paulsen, Matthew H. Park, Y. Joseph Woo   +5 more
doaj   +1 more source

Mitral Valve Stenosis after Open Repair Surgery for Non-Rheumatic Mitral Valve Regurgitation: a Review

Frontiers in Cardiovascular Medicine, 2016
Mitral stenosis (MS) after mitral valve repair is a slowly progressive condition, usually detected many years after the index mitral valve surgery. It is defined as a transmitral pressure gradient (TMPG) of >5 mmHg or a mitral valve area (MVA)
Muhammad eShabsigh, Cassidy eLawrence, Byron eRosero, Nicolas eKumar, Satoshi eKimura, Michael Andrew Durda, Michael eEssandoh   +6 more
doaj   +1 more source

Transcatheter Mitral Valve Replacement in Failed Bioprosthetic Valve, Ring, and Mitral Annular Calcification Associated Mitral Valve Disease Using Balloon Expandable Transcatheter Heart Valve

Methodist DeBakey Cardiovascular Journal, 2023
Transcatheter mitral valve replacement (TMVR) using the SAPIEN platform has been performed in failed bioprosthetic valves (valve-in-valve), surgical annuloplasty rings (valve-in-ring), and native valves with mitral annular calcification (MAC) (valve-in ...
Hiroki A. Ueyama, Patrick T. Gleason, Vasilis C. Babaliaros, Adam B. Greenbaum   +3 more
doaj   +1 more source

Comparison of flexible, open with semi-rigid, closed annuloplasty-rings for mitral valve repair

Journal of Cardiothoracic Surgery, 2021
Background Mitral regurgitation is a frequent valvular disease, with an increasing prevalence. We analysed the long-term outcomes of mitral valve repair procedures conducted over the last 10 years in our clinic using almost exclusively two different ...
Ayse Cetinkaya, Maryam Waheed, Karin Bramlage, Oliver Johannes Liakopoulos, Mohamed Zeriouh, Stefan Hein, Peter Bramlage, Markus Schönburg, Yeong-Hoon Choi, Manfred Richter   +9 more
doaj   +1 more source

Mitral Annular Forces and Their Potential Impact on Annuloplasty Ring Selection

Frontiers in Cardiovascular Medicine, 2022
Objectives: To provide an overview that describes the characteristics of a mitral annuloplasty device when treating patients with a specific type of mitral regurgitation according to Carpentier's classification of mitral regurgitation.Methods: Starting ...
Johannes H. Jedrzejczyk, Johannes H. Jedrzejczyk, Lisa Carlson Hanse, Lisa Carlson Hanse, Shadi Javadian, Shadi Javadian, Søren N. Skov, Søren N. Skov, J. Michael Hasenkam, J. Michael Hasenkam, J. Michael Hasenkam, Marcell J. Thørnild, Marcell J. Thørnild   +12 more
doaj   +1 more source

Transvalvular Pressure Gradients for different Methods of Mitral Valve Repair only Neochordoplasty achieves native Valve Gradients [PDF]

, 2017
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 ...
Thierry Carrel, Bernhard Winkler, Alberto Weber, Obrist, Dominik, Jahren, Silje Ekroll, Samuel Hurni, Carrel, Thierry, Weber, Alberto, Paul Philipp Heinisch, Hurni, Samuel, Silje Ekroll Jahren, Heinisch, Paul Philipp, Dominik Obrist, Winkler, Bernhard   +13 more
core   +1 more source

Successful mitral valve-in-ring repair of mitral annuloplasty ring dehiscence causing severe mitral regurgitation: a case report. [PDF]

, 2021
Background Annuloplasty failure caused by ring dehiscence can lead to trans-ring and para-ring mitral regurgitation (MR). Transcatheter treatments are available for patients at prohibitive risk of surgery.
Doshi, Sagar N, Sharma, Harish, Nadir, M Adnan, Steeds, Richard P, Steeds, Richard Paul   +4 more
core   +1 more source

Safety and Effectiveness Outcomes of a Novel Automated Titanium Suture Fastener Device Applied for Heart Valve Surgery in an Ovine Model

Frontiers in Cardiovascular Medicine, 2022
ObjectiveThis study was designed to evaluate the operability, effectiveness, and safety of the automated titanium suture fastener in a preclinical ovine model in comparison with manual tying in a mitral valve annuloplasty ring implantation surgery ...
Bin Li, Shanshan Bai, Guangxin Yue, Jinyan Zhu, Min Zhang, Baiqing Yang, Jiafei Luo, Yang Sun, Leisheng Zhang, Leisheng Zhang, Xin Wang   +10 more
doaj   +1 more source