For interventricular dyssynchrony were A : 46.4419.76 msec vs. B : 42.2029.56 msec ; A : 45.3345.67 msec vs. B : 29.8044.66 msec ; A : 46,3820 msec vs. B : 2127.20 msec , P = NS ) at 48h , 5 and 48 months , respectively .