Adverse events occurred in 19 ( 13 % ) patients of group I ( 3 deaths , 7 mitral valve replacements , 5 repeat PMV , 2 NYHA class > or = 3 , 2 technical failures ) and 16 ( 11 % ) patients of group D ( 2 deaths , 10 mitral valve replacements , 3 repeat PMV , 1 NYHA class > or = 3 ) .
