After 1 year , the total cost per patient in the off-pump coronary artery bypass graft surgery ( CABG ) arm was $ 9,650 ( $ 9,216 to $ 10,285 ) compared with $ 9,583 ( $ 9,239 to $ 9,988 ) for the on-pump CABG arm ; that resulted in a nonsignificant increase of $ 68 ( - $ 575 to $ 710 ) .