Improving Mitral Repair for Functional Mitral Regurgitation
Author(s)
Gasser, Grason Kathleen
Advisor(s)
Padala, Muralidh
Editor(s)
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Abstract
Ischemic mitral regurgitation is affiliated with changes in annular dimensions as well
as remodeling of the left ventricle. Undersized mitral annuloplasty (UMA), which
involves implanting a titanium-based ring-like structure onto the mitral annulus, is aimed
at reducing annular dimensions in order to restore leaflet coaptation and therefor correct
IMR. The durability of this treatment is improved with papillary muscle approximation
(PMA), in which a suture draws together the two papillary muscles that connect the
mitral valve to the heart muscle, reducing the lateral separation of the papillary muscles
in order to relieve tethering on the mitral leaflets to correct IMR. The participants in this
investigation are retrospectively identified patients who have already undergone surgery
for IMR. The purpose of this retrospective study is to investigate (1) the impact UMA has
on left ventricular function and (2) whether preoperative geometry, specifically interpapillary
muscle separation (IPMS), is predictive of FMR severity at 12 months after
UMA.
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Date
2021-05
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Resource Type
Text
Resource Subtype
Undergraduate Thesis