chordae tendineae

(redirected from Chordae tendinae)

chorda

 [kor´dah] (pl. chor´dae) (L.)
a cord or sinew. adj., adj chor´dal.
chorda mag´na Achilles tendon.
chor´dae tendi´neae tendinous cords connecting the two atrioventricular valves to the appropriate papillary muscles in the heart ventricles.
Chordae tendineae of the posterior cusps of atrioventricular valves in a cross-section of the heart. From Dorland's, 2000.
chorda tym´pani a nerve originating from the facial nerve, distributed to the submandibular, sublingual, and lingual glands and the anterior two-thirds of the tongue; it is a parasympathetic and special sensory nerve.
chorda umbilica´lis umbilical cord.
chorda voca´lis vocal cord.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

chordae tendineae

stringlike processes in the heart that attach the edges of the bicuspid and tricuspid valves to the walls of the ventricles, preventing them from being forced back into the atria when the ventricles contract.
Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005
References in periodicals archive ?
The LV end-diastolic diameter (left ventricular end diastolic dia- meter; at the R wave of the electrocardiography) and the end-systolic diameter (LV end-systolic dimension; at the peak inward motion of the endocardial excursion) were recorded using the M-mode tracings of the level of the chordae tendinae at the end of expiration in the LV short axis view.
Post procedure aortic and tricuspid valve regurgitation are other known complications which usually results from device impingement on valvular leaflets, damage to the aortic valve leaflets or interference with chordae tendinae during device deployment leading to AR or TR respectively34,17,35.
The mass was completely excised with sacrifice of the chordae tendinae traversing the lesion (Figure 3) and subsequent tricuspid valve repair (expanded polytetrafluoroethylene neochords and anteroposterior commissuroplasty).
Tian et al., "A pig model of ischemic mitral regurgitation induced by mitral chordae tendinae rupture and implantation of an ameroid constrictor," PLoS ONE, vol.
Anterior papillary muscle was 2.6 cm in length and was attached to the tricuspid valve with intervening chordae tendinae. Anterior papillary muscle was longest among the three papillary muscles.
All M mode measurements were taken by right parasternal short axis view at level of chordae tendinae as per the recommendations of American Society of Echocardiography.
The company has established a commercial beachhead in Europe for its technology, which allows for the implantation of artificial chordae tendinae, a technique for the repair of mitral valve prolapse, via a transapical, off-pump procedure," Chung said.
In a study comparing cardiac adverse effects of pimobendan with benazepril, (21) dogs with mitral valve regurgitation had increases in systolic function but also developed worsening mitral valve disease, specifically mitral valve lesions (acute hemorrhages, endocardial papilloform hyperplasia on the dorsal surfaces of the leaflets, and infiltration of chordae tendinae by glycosaminoglycans) not seen in the benazepril group.
The thickening of the valve leaflets and fibrosis of the chordae tendinae convert the valve into a rigid cylinder of dense scar tissue, immobilizing the posterior wall of the left ventricle with atrophy of this immobilized posterior papillary muscle (10).
(1) The coarse and broad trabeculae that are seen in LVNCC take the place of the normally conspicuous anterior and posterior papillary muscles that anchor the chordae tendinae of the three cusps of the mitral valve.
The true chordae tendinae are fibrous strings that usually originate from the apical portion of the anterior and posterior left ventricular papillary muscles or directly from the ventricular wall, inserting into the valve leaflet.
An echogenic intracardiac focus (EIF) is a bright area or microcalcification in the papillary muscle or chordae tendinae of the fetal heart.