• Two of the more common techniques for restoring the function of a damaged mitral valve are to surgically replace the valve with a mechanical valve or to suture a flexible ring around the valve to support it. (google.es)
  • His clinical interests include heart valve repair and replacement, mitral valve repair, atrial fibrillation surgery, maze procedure, aortic aneurysm repair, coronary bypass surgery, hypertrophic cardiomyopathy/myectomy and minimally invasive cardiac surgery. (wikipedia.org)
  • The importance of keeping the integrity of papillary muscle, chordae tendineae, and mitral valve cuspid when the replacement of this valve occurs is clear, but the knowledge of the maximum resistance that a primary tendinea chorda can withstand is not known. (scielo.br)
  • The goal of semi-rigid rings is to maintain coaptation and valve integrity during systole, while allowing for good hemodynamics during diastole. (wikipedia.org)
  • Under normal conditions the mitral valve undergoes significant dynamic changes in shape and size throughout the cardiac cycle. (wikipedia.org)
  • McCarthy co-founded a company called Cardiac Valve Innovations in 2015, directed to improving heart valve repair rings. (wikipedia.org)
  • These self-retaining retractors were designed to provide exposure for a variety of valve operations, Maze procedures and other intra-cardiac procedures. (wikipedia.org)
  • CONCLUSIONS Patients with untreated trivial or mild functional TR accompanied by mitral valve disease can develop significant TR during follow-up. (deepdyve.com)
  • Although the current guidelines recommend concomitant TV surgery for patients with mild TR, only a few studies have reported the long-term results of concomitant TV surgery for patients with non-significant functional TR who are undergoing left-sided valve surgery. (deepdyve.com)
  • Clinical and hemodynamic performance of a totally flexible prosthetic ring for atrioventricular valve reconstruction. (springer.com)
  • However, the data still limited regarding the specification of outcomes to the pathology of the heart valve disease and type of prosthetic ring. (springer.com)
  • The flexible anterior segment provides complete annular support while respecting the physiological motion of the aorto-mitral curtain. (medtronic.com)
  • The Simulus semi-rigid annuloplasty ring and band are for use in patients undergoing surgery for diseased or damaged mitral valves. (medtronic.com)
  • Every year, 300,000 people worldwide undergo open heart surgery for mitral valve repair, 44,000 people in the US alone. (wikipedia.org)
  • Carpentier's Reconstructive Valve Surgery. (wikipedia.org)
  • Thirty-day survival free of death and cardiovascular surgery was 85% in the overall group and 91% in the failed bioprosthetic mitral valve subgroup. (onlinejacc.org)
  • Redo mitral valve surgery can be associated with high mortality, particularly in patients with severe medical comorbidities. (onlinejacc.org)
  • however, recent studies have reported that late TR can develop in patients undergoing isolated left-sided valve surgery. (deepdyve.com)
  • Therefore, the current guidelines recommend the performance of concomitant tricuspid valve (TV) surgery for patients with severe TR who are undergoing left-sided valve surgery (Class I) and patients with mild, moderate or greater TR with either tricuspid annular dilation or prior evidence of right heart failure (Class IIa). (deepdyve.com)
  • however, concerns remain regarding the risks of combined valve surgery [4- (deepdyve.com)
  • Therefore, the benefits of performing concomitant TV surgery during mitral valve replacement (MVR) are controversial. (deepdyve.com)
  • Repeat operation in the first 10 years following mitral valve replacement or repair is required in up to 35% of patients (1,2) . (onlinejacc.org)
  • 5. The annuloplasty ring of claim 1 , wherein, in plan view, the middle of the downward bow is at a location between 3:00 and 6:00 in terms of a clock position, with 12:00 extending along the minor axis through the center of the anterior side. (google.com.au)
  • Acute procedural success was achieved in 42 of 48 patients (88%) in the overall group and 31 of 33 (94%) in the failed bioprosthetic mitral valve group and success rate of 11 of 15 (73%) in patients with failed annuloplasty rings and MAC. (onlinejacc.org)
  • The method substantially eliminates scarring subsequent to the annuloplasty procedure to maintain flexibility of the ring and the annulus indefinitely. (google.com)
  • In one embodiment, the annulus of the valve is reduced by constriction of the plication band itself. (google.com.au)
  • Subsequent constriction of the plication band causes these points to move toward each other, thereby constricting the tissue trapped between these points and thus reducing the overall circumference of the valve annulus. (google.com.au)
  • In a second embodiment, the annulus of the valve is reduced by linking multiple plication bands to one other, using a linkage construct, and then using a shortening of the length of the linkage construct between each plication band so as to gather the tissue between each plication band, whereby to reduce the overall circumference of the valve annulus. (google.com.au)
  • The annuloplasty ring is flexible and can be readily adjusted to different sizes and shapes. (google.com)
  • 2. The annuloplasty ring of claim 1 , wherein said second flexible section comprises a proximal end and a distal end and a means for joining the distal end to a needle. (google.com)
  • 9. The annuloplasty ring of claim 4 , wherein the distal end of the flexible section further comprises a hollow inner portion with an inner diameter approximately equal to the outer diameter of the attaching end of the needle and said frictional engagement is between said inner diameter and said outer diameter of the attaching end. (google.com)
  • The Valve-in-Valve Mitral App 2.2 (Dr. Bapat, supported by National Institute for Health Research and PCR) recommended a 23-mm Edwards valve (Edwards Lifesciences, Irvine, California) but we were concerned about the risk of residual paravalvular leak and high transmitral gradients. (onlinejacc.org)
  • Mitral valve annuloplasty: results in an underdeveloped population. (bmj.com)