▁breast bone , ▁but ▁instead ▁uses ▁multiple ▁in cis ions ▁in ▁the ▁side ▁of ▁the ▁ch est ▁and ▁the ▁leg . ▁Card iac ▁sur ge ons ▁are ▁not ▁un anim ous ▁about ▁the ▁relative ▁mer its ▁of ▁stern ot omy ▁versus ▁the ▁minim ally ▁invas ive ▁approach . ▁The ▁minim ally ▁invas ive ▁approach ▁can ▁produce ▁a ▁less ▁prominent ▁scar , ▁is ▁benef icial ▁for ▁very ▁ob ese ▁patients , ▁and ▁may ▁allow ▁the ▁patient ▁to ▁return ▁to ▁their ▁normal ▁activity ▁sooner ▁than ▁a ▁stern ot omy . ▁But ▁some ▁card iac ▁sur ge ons ▁argue ▁that ▁unless ▁performed ▁by ▁the ▁most ▁experienced ▁card iac ▁cent ers , ▁minim ally ▁invas ive ▁surg ery ▁can ▁involve ▁a ▁longer ▁time ▁on ▁a ▁by pass ▁machine , ▁a ▁lower ▁repair ▁rate , ▁and ▁higher ▁( although ▁still ▁low ) ▁risk ▁of ▁stroke . ▁One ▁card iac ▁surg ery ▁professor ▁said , ▁" I ▁think ▁the ▁only ▁benefit ▁is ▁for ▁cos mes is ▁for ▁the ▁patient ▁and ▁the ▁benefit ▁is ▁for ▁market ing ▁and ▁growing ▁our ▁practices ▁for ▁ourselves ▁because ▁it ’ s ▁a ▁good ▁way ▁to ▁grow ▁one ' s ▁practice ." ▁ ▁Rob otic ▁mit ral ▁val ve ▁repair ▁operations ▁are ▁also ▁being ▁util ized ▁throughout ▁the ▁United ▁States . ▁▁ ▁In ▁the ▁ 2 0 0 0 s ▁there ▁have ▁been ▁several ▁tri als ▁of ▁a ▁newer ▁strategy ▁of ▁mit ral ▁val ve ▁repair ▁that ▁does ▁not ▁require ▁major ▁card iac ▁surg ery . ▁Through ▁a ▁c ath eter ▁inserted ▁in ▁the ▁gro