At similar BIS@-@ -LSB- @ ( @-@ ) % vs @ ( @-@ ) % -RSB- , N@O slightly decreased propofol consumption -LSB- @ ( @-@ @ ) vs @ ( @-@ @ ) mg kg ( -@ ) h ( -@ ) , P = @ -RSB- , but not remifentanil consumption -LSB- @ ( @-@ @ ) vs @ ( @-@ @ ) g kg ( -@ ) min ( -@ ) -RSB- .