Posterior leaflet augmentation improves leaflet tethering in repair of ischemic mitral regurgitation | Zendy

J. Daniel Robb | Zendy; Masahito Minakawa | Zendy; Kevin J. Koomalsingh | Zendy; Takashi Shuto | Zendy; Arminder S. Jassar | Zendy; Sarah J. Ratcliffe | Zendy; Robert C. Gorman | Zendy; Joseph H. Gorman | Zendy

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Posterior leaflet augmentation improves leaflet tethering in repair of ischemic mitral regurgitation

Author(s) -

J. Daniel Robb,

Masahito Minakawa,

Kevin J. Koomalsingh,

Takashi Shuto,

Arminder S. Jassar,

Sarah J. Ratcliffe,

Robert C. Gorman,

Joseph H. Gorman

Publication year - 2011

Publication title -

european journal of cardio-thoracic surgery

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.303

H-Index - 133

eISSN - 1873-734X

pISSN - 1010-7940

DOI - 10.1016/j.ejcts.2011.02.079

Subject(s) - leaflet (botany) , medicine , tethering , mitral regurgitation , mitral valve repair , cardiology , anatomy , paleontology , computer science , biology , operating system

Ischemic mitral regurgitation results from annular dilatation, leaflet tethering and leaflet flattening. Undersized annuloplasty corrects annular dilatation but worsens leaflet tethering and flattening. This exacerbation of abnormal leaflet geometry may contribute to poor repair results for ischemic mitral regurgitation (IMR). Using a sheep model of IMR, we hypothesized that posterior leaflet augmentation and less-extreme annular undersizing would relieve tethering and increase leaflet curvature.

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