Abstract

BACKGROUND
Efficacy of papillary muscle approximation (PMA) has not been well defined.
METHODS
Mitral valve configuration was assessed using echocardiography before and 1 week after the surgery in 27 consecutive patients undergoing surgical correction of ischemic MR. Comparisons were made between patients undergoing restrictive mitral annuloplasty (RMAP) alone (n = 13, RMAP group) and those undergoing PMA in addition to RMAP (n = 14, PMA group).
RESULTS
In the RMAP group, the annular diameter was reduced by 43% after surgery, and annular reduction was greater in the posterior portion than in the anterior. Consequently, the tethering angle of the posterior leaflet (PL) increased after surgery. In the PMA group, the annular diameter was reduced by 33%, and annular reduction was greater in the posterior. In this group also, the tethering angle of PL increased significantly after surgery, although the degree of augmentation was lower compared with that in the RMAP group.
CONCLUSION
The addition of PMA to RMAP could attenuate but do not eliminate the tethering augmentation of PL.

Links

Publisher Full Text

Authors

Manabe S, Shimokawa T, Fukui T, Tabata M, Takanashi S

Institution

Department of Cardiovascular Surgery, Teikyo University Hospital, Tokyo, Japan. s-manabe@fb3.so-net.ne.jp

Source

The Thoracic and cardiovascular surgeon 60:4 2012 Jun pg 269-74

MeSH

Aged
Cardiac Surgical Procedures
Chi-Square Distribution
Female
Humans
Japan
Male
Middle Aged
Mitral Valve
Mitral Valve Annuloplasty
Mitral Valve Insufficiency
Myocardial Ischemia
Papillary Muscles
Retrospective Studies
Severity of Illness Index
Treatment Outcome

Pub Type(s)

Comparative Study
Journal Article

Language

eng

PubMed ID

22549757