Chordae tendineae from 50 normal mitral valves were studied. Four main types can be distinguished by their mode of insertion. Commissural chordae insert into and define the commissures between the anterior and posterior leaflets. Rough zone chordae insert into the ventricular aspect of the distal rough portion of the anterior and posterior leaflets. Such rough zone chordae typically split into ...

Although mitral valve repair (MVR)—for mitral regurgitation (MR) secondary to chronic valvular heart disease (CVHD)— is becoming more common in veterinary medicine, there is little information about the morphology of the mitral valve apparatus that is used to guide veterinary surgeons. Therefore, we investigated the locations of MR using echocardiography in 12 client-owned dogs with MR. Nine (7...

Carrying out a mitral valve replacement (MVR) while preserving all chordae tendineae in patients with mitral regurgitation has been proven beneficial to the left ventricular performance. To evaluate the effectiveness of this technique in patients with mitral stenosis, a comparison of the echocardiographic data between patients who were operated on using this technique (Group Preservation = Grou...

Mitral valve prolapse (MVP) results from the systolic movement of a portion or segments of the mitral valve leaflets into the left atrium during left ventricular systole. It is well appreciated today that floppy mitral valve (FMV) is the central issue in the MVP and mitral valve regurgitation (MVR) story. The term FMV refers to the expansion of the area of the mitral valve leaflets with elongat...

Differentiation between primary and secondary forms of mitral regurgitation poses a frequent and important clinical problem. In the primary variety of mitral incompetence, there is distortion of the valve leaflets, rupture or redundancy of the chordae tendineae, or papillary muscle rupture. Heart failure, if present at all in such cases, is assumed to be a consequence of the large regurgitant v...

Background Rheumatic fever remains a significant worldwide cause of mitral regurgitation, responsible for approximately 90% of early childhood valvular surgery in Brazil. Elongated/flail chordate are frequently responsible for such condition that must be surgically corrected. Despite recent surgical progress in mitral valve reconstruction techniques, there are no published reports shortening th...

A 70-year-old man was admitted to our hospital for surgical treatment of mitral insufficiency. A preoperative echocardiogram revealed a prolapsed anterior mitral leaflet, membranous septal aneurysm (MSA), and unusual chordae extending from the ventricular septum to the anterior mitral leaflet (Movies I and II in the online-only Data Supplement). In surgery, the aneurysm was examined through the...

Postoperative cardiovascular studies were carried out in eight patients with ostium primum defect and cleft mitral valve. Apical systolic murmurs were present in all patients, but in seven of them no mitral regurgitation was detected by pulmonary wedge pressure and left ventricular angiography. Surgical repair of the cleft anterior leaflet without resection of subjacent chordae tendineae, as pe...

To cite: Kenzaka T, Nishimura Y. BMJ Case Rep Published online: [please include Day Month Year] doi:10.1136/bcr-2014203592 DESCRIPTION A 56-year-old man had undergone mitral valvuloplasty owing to a 3-year history of mitral insufficiency caused by chordae tendineae rupture. Prosthetic valve ring and artificial chordae tendineae are usually used in this case. The patient was referred to the hosp...

Background: Successful mitral valve repair and replacement are dependent upon a full understanding of normal and abnormal mitral valve anatomy and function. The functional components of the mitral valve include: the left atrial wall, the annulus, the leaflets, the chordae tendineae, the papillary muscles, segments of the left ventricular myocardium. Abnormal anatomy or function of any one of th...