Temporal trends in percutaneous mitral commissurotomy over a 15-year period.

Aims: To evaluate temporal trends in percutaneous mitral commissurotomy (PMC) in terms of changes in patient characteristics and their impact on immediate results.

Methods And Results: From 1986 to 2001, PMC was indicated in 2773 consecutive patients. Patient characteristics and results were compared each year and linear trends were analysed.