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. Author manuscript; available in PMC: 2020 Apr 1.
Published in final edited form as: J Thorac Cardiovasc Surg. 2018 Oct 10;157(4):1444–1449. doi: 10.1016/j.jtcvs.2018.09.069

Figure 2:

Figure 2:

Schematic illustrating the hypothesized predominant mechanism leading to leaflet tethering during IMR/FMR: Apical leaflet displacement is not – as frequently hypothesized – associated with apical (A), but with a postero-lateral displacement of the posteromedial papillary muscle (PPM) (B). AML=anterior mitral leaflet.