The addition of CABG therapy tended to reduce cardiovascular deaths ( hazard ratio -LSB- HR -RSB- : @ ; @ % confidence interval -LSB- CI -RSB- : @ to @ ; p = @ ) and significantly reduced the most common modes of death : sudden death ( HR : @ ; @ % CI : @ to @ ; p = @ ) and fatal pump failure events ( HR : @ ; @ % CI : @ to @ ; p = @ ) .