Guedes MAV, Pomerantzeff PMA, Brandão CMDA, Vieira MLC, Tarasoutchi F, Spinola PDC, Jatene FB. Mitral annulus morphologic and functional analysis using real time tridimensional echocardiography in patients submitted to unsupported mitral valve repair.
Braz J Cardiovasc Surg 2016;
30:325-34. [PMID:
26313723 PMCID:
PMC4541779 DOI:
10.5935/1678-9741.20140082]
[Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2014] [Accepted: 06/22/2014] [Indexed: 11/20/2022] Open
Abstract
Introduction
Mitral valve repair is the treatment of choice to correct mitral insufficiency,
although the literature related to mitral valve annulus behavior after mitral
repair without use of prosthetic rings is scarce.
Objective
To analyze mitral annulus morphology and function using real time tridimensional
echocardiography in individuals submitted to mitral valve repair with Double
Teflon technique.
Methods
Fourteen patients with mitral valve insufficiency secondary to mixomatous
degeneration that were submitted to mitral valve repair with the Double Teflon
technique were included. Thirteen patients were in FC III/IV. Patients were
evaluated in preoperative period, immediate postoperative period, 6 months and 1
year after mitral repair. Statistical analysis was made by repeated measures ANOVA
test and was considered statistically significant P<0.05.
Results
There were no deaths, reoperation due to valve dysfunction, thromboembolism or
endocarditis during the study. Posterior mitral annulus demonstrated a significant
reduction in immediate postoperative period (P<0.001),
remaining stable during the study, and presents a mean of reduction of 25.8%
comparing with preoperative period. There was a significant reduction in
anteroposterior and mediolateral diameters in the immediate postoperative period
(P<0.001), although there was a significant increase in
mediolateral diameter between immediate postoperative period and 1 year. There was
no difference in mitral internal area variation over the cardiac cycle during the
study.
Conclusion
Segmentar annuloplasty reduced the posterior component of mitral annulus, which
remained stable in a 1-year-period. The variation in mitral annulus area during
cardiac cycle remained stable during the study.
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