Trans-sections from the chordae
tendineae, papillary muscle, mitral valve, and near-apex of the LV were subject to morphological assessment.
The aortic valve, tricuspid chordae
tendineae, atrioventricular node, conduction bundle are all closely related to the PMVSD.
The classification according to their insertion sites are: first order, the chordae
are thin, arise from the papillary muscle, insert on the free edges of the leaflets, and are most common (15).
In this series, compared with FED, BD presented higher incidence of excess P2 height and elongated chordae
and lower risk of chordal rupture [Supplementary Table 2].
Satellite lesions with aortic regurgitation often occur on the anterior leaflet of the mitral valve or on the mitral chordae
tendinae most commonly when the noncoronary cusp or the adjacent commissure of the aortic valve is involved [6, 8].
The anterior commissure leaflet was resected together with the vegetation and ruptured chordae
tendineae, followed by mitral valve replacement.
Group A (n = 17) CPB time (min) 113 [+ or -] 17 Cross-clamp time (min) 95 [+ or -] 13 Complete prosthetic semirigid ring 3 Incomplete band 14 Annular plication 1 Quadrangular resection 6 Triangular resection 9 Sliding plasty 13 Artificial chordae
positioning 2 Papillary muscle placation 1 Group B(n = 17) p value CPB time (min) 131 [+ or -] 23 0.07 Cross-clamp time (min) 112 [+ or -] 12 0.08 Complete prosthetic semirigid ring 2 0.32 Incomplete band 15 0.38 Annular plication 0 0.41 Quadrangular resection 7 0.42 Triangular resection 9 Sliding plasty 17 0.09 Artificial chordae
positioning 0 0.18 Papillary muscle placation 0 0.39 CPB: cardiopulmonary bypass.
Atrioventricular (AV) valvular apparatus comprises of AV orifice and its annulus, valvular leaflets, chordae
tendineae and papillary muscles.
Tricuspid insufficiency with rupture of the chordae
tendineae caused by closed thoracic trauma: evaluation by transesophageal echocardiography.
The most important complication is severe mitral regurgitation due to the myxomatous degeneration or chordae
The mechanism of regurgitation was due to tethering of the leaflets owing to papillary muscle shortening and annular dilation, as the chordae
and leaflets were normal, the jets were central, and there was tip-to-tip coaptation of the leaflets of atrioventricular valves.
Contract notice: Contract to half open procedure, in aggregated form, for the provision of devices for introduction chordae
tendineae, treating atrial fibrillation by cryo-ablation, implantable devices for cardiac function and perfusion hyperthermic procedure for a period of 72 months.