Impact of different annuloplasty rings on geometry of the mitral annulus with fibroelastic deficiency: the significance of aorto-mitral angle

The International Journal of Cardiovascular Imaging
Wenrui MaYe Kong

Abstract

We sought to investigate the impact of full annuloplasty rings versus C-shape bands on mitral annular geometry in the presence of fibroelastic deficiency (FED), as assessed by intraoperative three-dimensional transesophageal echocardiography (3DTEE). We retrospectively selected 65 patients who underwent mitral valve repair for severe mitral regurgitation caused by FED using full rings (the Ring group, n = 30) and C-shape bands (the Band group, n = 35). 71 controls without valvular heart disease were also included. Thorough 3DTEE inspections were performed for the entire cohort to measure morphological parameters of mitral annulus before and after surgery. Mid-term repair durability and left atrial diameter were followed up. The preoperative 3DTEE parameters, including annular diameters, area, height and aorto-mitral angle, were significantly larger in the FED groups than normal, and were comparable between two groups using different annuloplasty devices. After repair, the anterior-posterior diameter, annulus circumference and area were significantly larger in the Band group than in the Ring group. The aorto-mitral angle became comparable with normal value in the Ring group (p = 0.728), but not in the Band group (p = 0.011). Fol...Continue Reading

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Citations

Jan 28, 2019·The Journal of Thoracic and Cardiovascular Surgery·Wenrui MaWei Zhang

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