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

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 50 years and an echocardiographic score > 8 were independent predictors of death; and an echocardiographic score > 8 and post operative mitral valve area 50 years, echocardiographic score > 8 and mitral valve area < 1.50 cm² after the procedure.