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The Subvalvular Apparatus in Rheumatic Mitral Stenosis: Methods of Assessment and Therapeutic Implications -- Turgeman ... tendineae of the anterior leaflet are 17.5 ± 2.5 mm and of the chordae tendineae to the closure of the mitral valve chordae tendineae are particularly the pillars of the keystone www.chestjournal.org /cgi/content/full/124/5/1929   (3278 words)

Chordae tendineae - Wikipedia, the free encyclopedia The chordae tendineae are the unlabled, white tendons seen connecting the valves to the heart muscle The chordae tendinae are cord-like tendons that connect the papillary muscles to the tricuspid valve and the mitral valve in the heart. The chordae tendineae prevents the flaps from being everted into the right atrium. en.wikipedia.org /wiki/Chordae_tendineae   (204 words)

6.4 Ruptured chordae tendineae   (Site not responding. Last check: 2007-10-11) Rupture of the chordae tendineae is a condition which has been reported relainfrequently, but it is an important complicating factor in a significant proportion of cases with MR and some animals with TR. Rupture of the chordae tendineae is likely to result from degenerative disease affecting the whole of the valve, rather than being a primary problem. Ruptured chordae tendineae are recognised with greater frequency since the advent of echocardiography. www.provet.co.uk /equinecardiology/5a6636b.htm   (123 words)

eMedicine - Mitral Regurgitation : Article Excerpt by: Shivkumar Jha, MD The usual etiologies are myxomatous degeneration, ruptured chordae tendineae, collagen-vascular disease, and rheumatic fever. The mitral valve is composed of the mitral annulus, the leaflets (a large anterior [aortic] leaflet and a small posterior [mural] leaflet), the chordae tendineae, and the papillary muscles. Chordae tendineae attach to papillary muscles and prevent prolapse of the mitral valve leaflet to prevent reflux of blood into the left atrium. www.emedicine.com /med/byname/mitral-regurgitation.htm   (697 words)

Heart Anatomy They connect to the chordae tendineae, which attach to the tricuspid valve in the right ventricle and the mitral valve in the left ventricle. The chordae tendineae are tendons linking the papillary muscles to the tricuspid valve in the right ventricle and the mitral valve in the left ventricle. As the papillary muscles contract and relax, the chordae tendineae transmit the resulting increase and decrease in tension to the respective valves, causing them to open and close. www.cardioconsult.com /Anatomy   (1174 words)

WSAVA 2001 - Chronic Valvular Heart Disease in Dogs Valvular endocardiosis is a degenerative change of unknown cause affecting the subendocardial valve leaflets and chordae tendineae in the middle aged to elderly dog. In some cases, the valves are redundant and the chordae tendineae elongated, leading to prolapse of the valve into the atrium. Valvular prolapse caused by elongated or ruptured chorda tendineae is observed frequently. www.vin.com /VINDBPub/SearchPB/Proceedings/PR05000/PR00033.htm   (2230 words)

Rupture of the Chordae of the Tricuspid Valve After Knotting of the Pulmonary Artery Catheter -- Arnaout et al. 120 ... have passed between the chordae tendineae of the tricuspid valve. Smith, WR, Glauser, FL, Jemison, P (1976) Ruptured chordae of the tricuspid valve: the consequence of flow-directed Swan-Ganz catheterization. Kainuma, M, Yamada, M, Miyake, T (1995) Pulmonary artery catheter passing between the chordae tendineae of the tricuspid valve. www.chestjournal.org /cgi/content/full/120/5/1742   (984 words)

chordae tendineae (left heart, anatomy) - General Practice Notebook   (Site not responding. Last check: 2007-10-11) The chordae tendineae of the left heart can be classified into the following groups: unique to the mitral valve are 'strut chordae' from the anterolateral and posteromedial papillary muscles; they are particularly thick rough zone chordae which insert only into the anterior leaflet cleft chordae: fine chordae which insert into the free margin of a leaflet where it is partially divided by minor clefts www.gpnotebook.co.uk /cache/-543555527.htm   (189 words)

Georgia Tech's Institutional Repository: Item 1853/5892 The material properties of the mitral valve chordae tendineae are important for the understanding of leaflet coaptation configuration and chordal pathology. This study demonstrates the first in vitro examination of the strain experienced by the chordae tendineae of the mitral valve. The microstructure and biochemical composition of the chordae tendineae is related to their function during coaptation. smartech.gatech.edu /handle/1853/5892   (397 words)

Clinical Characteristics of Ruptured Chordae Tendineae in Hospitalized Patients: Primary Tear versus Infective ...   (Site not responding. Last check: 2007-10-11) Primary rupture of the chordae tendineae had been diagnosed in 11 patients, while infectious endocarditis was the cause for the tear of the chordae tendineae in 9 patients. The patients who had primary rupture of the chordae were older than the patients with endocarditis (67.4 ± 11.3 vs. 57 ± 9.3 years, respectively, p<0.05). It is the authors' opinion that this coexistence implies that MVP may predispose to the rupture of chordae tendineae. www.clinicalcardiology.org /productcart/pc/briefs/9811briefs/21-813.html   (319 words)

Mitral valve disease - Patient UK There is the mitral annulus, the leaflets that are a large anterior or aortic leaflet and a small posterior or mural leaflet, the chordae tendineae and the papillary muscles. The leaflets are tethered to the left ventricle by the chordae tendineae. The usual aetiologies of regurgitation are myxomatous degeneration, ruptured chordae tendineae, connective tissue disease, dilatation of the left ventricle including from dilated cardiomyopathy and rheumatic fever. www.patient.co.uk /showdoc/40000574   (2008 words)

Anatomy, histology, and development of the cardiac valvular system in elasmobranchs.   (Site not responding. Last check: 2007-10-11) Blood from the atrium passes the atrioventricular (AV; semilunar) valves, which are attached to papillary muscles in the ventricle by way of the chordae tendineae. Chordae tendineae form in a similar fashion in both chambers. Fibroblasts in the core of the chordae enlarge and strengthen the chordae by producing linear arrays of collagen fibers. www.arclab.org /medlineupdates/abstract_8676100.html   (264 words)

Mitral regurgitation - Wikipedia, the free encyclopedia The mitral valve is composed of the valve leaflets, the mitral valve annulus (which forms a ring around the valve leaflets), the papillary muscles (which tether the valve leaflets to the left ventricle, preventing them from prolapsing into the left atrium), and the chordae tendineae (which connect the valve leaflets to the papillary muscles). The elongation of the valve leaflets and the chordae tendineae prevent the valve leaflets from fully coapting when the valve is closed, causing the valve leaflets to prolapse into the left atrium, thereby causing mitral regurgitation. Ischemic heart disease causes mitral regurgitation by the combination of ischemic dysfunction of the papillary muscles, and the dilatation of the left ventricle that is present in ischemic heart disease, with the subsequent displacement of the papillary muscles and the dilatation of the mitral valve annulus. en.wikipedia.org /wiki/Mitral_regurgitation   (1866 words)

Memorial Healthcare System Health Library Normally the flaps are held tightly closed during left ventricular contraction (systole) by the chordae tendineae (small tendon "cords" that connect the flaps to the muscles of the heart). The prolapse may be due to ischemic damage (caused by decreased blood flow as a result of coronary artery disease) to the papillary muscles attached to the chordae tendineae or to functional changes in the myocardium. If severe mitral regurgitation resulting from a floppy mitral leaflet, rupture of the chordae tendineae, or extreme lengthening of the valve should occur, surgical repair may be indicated. www.mhs.net /healthlibrary/content.aspx?pageid=P00229   (1022 words)

Text Tricuspid valve dysplasia (TVD) is defined as congenital malformation of the tricuspid valve leaflets, chordae tendineae, and/or papillary muscles. Described lesions in humans include focal or diffuse thickening of the valve leaflets, underdevelopment of chordae tendineae and papillary muscles, incomplete separation of valve components from the ventricular wall, and focal agenesis of valvular tissue. In dogs and cats, chordae tendineae are commonly absent or very short. www.vmth.ucdavis.edu /cardio/cases/case23/text.htm   (1484 words)

Mitral valve prolapse - Wikipedia, the free encyclopedia This weakens the leaflets and adjacent tissue, resulting in increased leaflet area and elongation of the chordae tendineae. Elongation of the chordae often causes rupture, and is commonly found in the chordae tendineae attached to the posterior leaflet. Patients with asymmetric prolapse are prone to severe deterioration of the mitral valve, with the possible rupture of the chordae tendineae and the development of a flail leaflet. en.wikipedia.org /wiki/Mitral_valve_prolapse   (1333 words)

chordae tendineae (right heart, anatomy) - General Practice Notebook   (Site not responding. Last check: 2007-10-11) The chordae tendineae of the right heart have been classified into the following groups: fan-shaped: single chordae stem diverges directly from the papillary muscle to form a number of fine chordae which attach to the edges of the commisures between the leaflets free edge: single chordae arising from either end of a papillary muscle and inserting roughly into the mid-point of a given leaflet www.gpnotebook.co.uk /cache/-550174663.htm   (225 words)

Mitral Valve Repair -- Gillinov and Cosgrove 2 (2003): 933 -- Cardiac Surgery in the Adult leaflet or secondary chordae from the anterior leaflet are transposed David TE, Ho WC: The effects of preservation of chordae tendineae on mitral valve replacement for postinfarction mitral regurgitation. Gregori F Jr, da Silva SS, Goulart MP, et al: Grafting of chordae tendineae: a new technique for repair of mitral insufficiency caused by ruptured chordae of the anterior leaflet [letter]. cardiacsurgery.ctsnetbooks.org /cgi/content/full/2/2003/933?ck=nck   (6444 words)

Influence of Anterior Mitral Leaflet Second-Order Chordae Tendineae on Left Ventricular Systolic Function -- Nielsen et ... Chordal force transducers were attached to the two AMVL strut chordae tendineae. Morphology of the human mitral valve I: chordae tendineae: a new classification. Influence of anterior mitral leaflet second-order chordae on leaflet dynamics and valve competence. circ.ahajournals.org /cgi/content/full/108/4/486   (3317 words)

Mitral valve prolpse --The Doctors Lounge(TM) The mitral valve apparatus is composed of mitral annulus, leaflets, chordae tendineae and papillary muscles. In cases of Mitral valve prolapse, the abnormality is thought to be secondary to some kind of a degenerative process. In cases of Mitral valve prolapse, rupture of the chordae tendineae is more common in males over 50 years who actually have chronic mitral regurge and this leads to worsening of their already present mitral regurge. www.thedoctorslounge.net /cardiology/forums/backup/topic-106.html   (227 words)

Valves The mitral valve is located between the left ventricle and left atrium, and it allows blood to flow to the latter. It is connected to the ventricular walls with fibrous strands called chordae tendineae. It has a similar size and is connected to the ventricular walls with chordae tendineae. library.thinkquest.org /C003758/Structure/valves.htm   (264 words)

Pathophysiology of Mitral Valve Disease -- Fann et al. 2 (2003): 901 -- Cardiac Surgery in the Adult The posterior mitral leaflet is attached to thinner chordae or elongation of the first-order chordae (58%), annular dilation chordae tendineae are usually not extremely thickened nor fused. cardiacsurgery.ctsnetbooks.org /cgi/content/full/2/2003/901?ck=nck   (8848 words)

Cardiovascular Pathology   (Site not responding. Last check: 2007-10-11) Here are flat, pale tan, spreading vegetations over the mitral valve surface and even on the chordae tendineae. Thus, these vegetations that can be on any valve or even on endocardial surfaces are consistent with Libman-Sacks endocarditis. Note also the thickened, shortened, and fused chordae tendineae that represent remote rheumatic heart disease. www-medlib.med.utah.edu /WebPath/CVHTML/CV122.html   (73 words)

Morphology of the Human Mitral Valve: I. Chordae Tendineae: A New Classification -- LAM et al. 41 (3): 449 -- ... Morphology of the Human Mitral Valve: I. Chordae Tendineae: A New Classification -- LAM et al. Chordae tendineae from 50 normal mitral valves were studied. chordae insert into and define the clefts between the scallops circ.ahajournals.org /cgi/content/abstract/41/3/449   (612 words)

Definition: Ruptured chordae tendineae | Med Terms | Med School Chat   (Site not responding. Last check: 2007-10-11) Characteristics include adramatic holosystolic apical murmur, precordial thrill, chest pain, dyspnea. Rupture of the chordae of the mitral valve is not uncommon. MSC Community - CHAT with Doctors, Pre-Med and Med Students. www.medschoolchat.com /MED-Terms-term-id7073.html   (106 words)

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