title: Mitral valve repair by Double Teflon technique: cardiac remodeling analysis by tridimensional echocardiography.
abstract: BACKGROUND
  Mitral valve repair is the treatment of choice to correct mitral insufficiency. Although the literature related to left atrial and ventricular behavior after mitral repair without use of prosthetic rings is scarce.
  
  
  OBJECTIVE
  To analyze cardiac morphology and function using real time tridimensional echocardiography in individuals submitted to mitral valve repair with Double Teflon technique.
  
  
  METHODS
  Were included 14 patients with mixomatous mitral valve insufficiency that were submitted to mitral valve repair with the Double Teflon technique. Of them, 13 patients were in class III/IV. Patients were evaluated in preoperative period, immediate postoperative period, 6 months and 1 year after mitral repair. Statistic analysis was made by repeated measures ANOVA test and was considered statistically significant P <0.05.
  
  
  RESULTS
  The analysis of systolic volumes, atrial and ventricular, demonstrated a significant volumetric reduction between immediate postoperative period and 1 year (P = 0.028 and P = 0.020, respectively). Between preoperative period and 1 year, there was a mean reduction in atrial and ventricle volumes of 19.9% and 15.4%, respectively. Atrial and ventricle diastolic volumes presented a significant reduction in immediate postoperative period (P <0.001 and P = 0.024, respectively), remaining stable during the study. There was an increase in left atrial ejection fraction after 6 months (P <0.001), although there was no significant variation in left ventricle ejection fraction.
  
  
  CONCLUSIONS
  Patients submitted to mitral valve repair by the Double Teflon technique demonstrated a left atrial and ventricle reverse remodeling. These reductions were associated with an improvement in left atrial function during the study.
authors.affiliation: Sociedade Brasileira de Cirurgia Cardiovascular, FMUSP, São Paulo, Brasil. guedesmarco@gmail.com
authors.forename: Marco Antonio Vieira
authors.initials: MA
authors.lastname: Guedes
authors.forename: Pablo Maria Alberto
authors.initials: PM
authors.lastname: Pomerantzeff
authors.forename: Carlos Manuel de Almeida
authors.initials: CM
authors.lastname: Brandão
authors.forename: Marcelo Luiz Campos
authors.initials: ML
authors.lastname: Vieira
authors.forename: Osanam Amorim
authors.initials: OA
authors.lastname: Leite Filho
authors.forename: Marcos Floripes da
authors.initials: MF
authors.lastname: Silva
authors.forename: Pablo da Cunha
authors.initials: Pda C
authors.lastname: Spinola
authors.forename: Noedir Antonio Groppo
authors.initials: NA
authors.lastname: Stolf
mesh_terms: D000328:Adult; D000368:Aged; D000704:Analysis of Variance; D016279:Atrial Function, Left / Q000502:physiology*; D019560:Echocardiography, Three-Dimensional; D005260:Female; D006325:Heart Atria / Q000000981:diagnostic imaging; D006352:Heart Ventricles / Q000000981:diagnostic imaging; D006801:Humans; D008297:Male; D008875:Middle Aged; D008943:Mitral Valve / Q000601:surgery*; D011184:Postoperative Period; D057234:Preoperative Period; D016277:Ventricular Function, Left / Q000502:physiology*; D020257:Ventricular Remodeling / Q000502:physiology*