title: Comparison of the inoue and single balloon techniques during long term percutaneous balloon mitral valvoplasty follow-up. Analysis of risk factors for death and major events.
abstract: OBJECTIVE
  To analyze the long term evolution of patients undergoing percutaneous balloon mitral valvoplasty comparing the Inoue and Balt single balloon methods, and to identify predictors of death and major events (death, repeat balloon mitral valvoplasty or mitral valve surgery).
  
  
  METHODS
  The follow-up for the single and Inoue balloon groups were 54 +/- 31 (1 to 126) months and 34 +/- 26 (2 to 105) months, respectively (p < 0.0001). The Balt single balloon was used in 254 (84.1%) patients and the Inoue balloon in 48 (15.9%).
  
  
  RESULTS
  The following data were found for the Inoue and single balloon groups, respectively: age, 36.9 +/- 10.4 (19 to 63) years and 38.0 +/- 12.6 (13 to 83) years (p = 0.5769); echocardiographic score, 7.5 +/- 1.3 points and 7.2 +/- 1.5 points (p = 0.1307); female gender, 72.9% and 87.4% (p = 0.0097); atrial fibrillation, 10.4% and 16.1% (p = 0.4275); mortality during follow-up, 2.1% and 4.3% (0.6984); and major events, 8.3% and 17.7% (p = 0.1642). Univariate and Kaplan-Meier curve analyses revealed no differences between the Inoue and Balt single balloon techniques in relation to survival and major event free survival. In the multivariate analysis, age > 50 years and an echocardiographic score > 8 were independent predictors of death; and an echocardiographic score > 8 and post operative mitral valve area < 1.50 cm(2) were predictors for major events.
  
  
  CONCLUSIONS
  No differences were found in the long term evolution of patients undergoing the Inoue versus the single balloon technique. Predictors of death and/or major events were: age > 50 years, echocardiographic score > 8 and mitral valve area < 1.50 cm(2) after the procedure.
authors.affiliation: Universidade Federal Fluminense, Niterói, RJ, Brazil.
authors.forename: Ivana Picone
authors.initials: IP
authors.lastname: Borges
authors.forename: Edison Carvalho Sandoval
authors.initials: EC
authors.lastname: Peixoto
authors.forename: Rodrigo Trajano Sandoval
authors.initials: RT
authors.lastname: Peixoto
authors.forename: Paulo Sergio de
authors.initials: PS
authors.lastname: Oliveira
authors.forename: Mario
authors.initials: M
authors.lastname: Salles Netto
authors.forename: Ricardo Trajano Sandoval
authors.initials: RT
authors.lastname: Peixoto
authors.forename: Marta
authors.initials: M
authors.lastname: Labrunie
authors.forename: Pierre
authors.initials: P
authors.lastname: Labrunie
authors.forename: Ronaldo de Amorim
authors.initials: Rde A
authors.lastname: Villela
authors.forename: Aristarco Gonçalves
authors.initials: AG
authors.lastname: Siqueira-Filho
mesh_terms: D000293:Adolescent; D000328:Adult; D000367:Age Factors; D000368:Aged; D000369:Aged, 80 and over; D001281:Atrial Fibrillation / Q000453:epidemiology / Q000209:etiology; D002404:Catheterization / Q000009:adverse effects / Q000379:methods* / Q000401:mortality; D004452:Echocardiography / Q000706:statistics & numerical data; D004812:Epidemiologic Methods; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D008943:Mitral Valve / Q000000981:diagnostic imaging; D008946:Mitral Valve Stenosis / Q000000981:diagnostic imaging / Q000628:therapy*; D012016:Reference Values; D013997:Time Factors; D016896:Treatment Outcome