phy . ▁If ▁the ▁vent ric ular ▁sept al ▁defect ▁is ▁smaller ▁than ▁the ▁pul mon ary ▁val ve , ▁the ▁sur geon ▁will ▁en large ▁the ▁defect . ▁The ▁sur geon ▁then ▁uses ▁a ▁patch , ▁commonly ▁made ▁of ▁b ov ine ▁( cow ) ▁per ic ard ium ▁or ▁the ▁child ' s ▁own ▁t issue , ▁to ▁create ▁a ▁tunnel ▁between ▁the ▁vent ric ular ▁sept al ▁defect ▁and ▁the ▁pul mon ary ▁val ve . ▁This ▁allows ▁for ▁blood ▁to ▁flow ▁from ▁the ▁left ▁vent ric le ▁to ▁the ▁pul mon ary ▁val ve . ▁After ▁creating ▁this ▁tunnel , ▁the ▁sur geon ▁connect s ▁the ▁a ort ic ▁and ▁pul mon ary ▁roots ▁( D am us - K aye - St ans el ▁an ast om osis ). ▁ ▁Out comes ▁ ▁Children ▁typically ▁have ▁good ▁card iac ▁function ▁and ▁surv ival ▁after ▁the ▁Y as ui ▁procedure , ▁similar ▁to ▁other ▁operations ▁for ▁the ▁same ▁conditions . ▁However , ▁children ▁may ▁require ▁re - operation ▁to ▁replace ▁the ▁condu it ▁in ▁their ▁heart ▁if ▁they ▁out g row ▁it . ▁Long - term ▁surv ival ▁depends ▁on ▁other ▁factors , ▁such ▁as ▁gen etic ▁disease . ▁ ▁References ▁▁ ▁Category : Card iac ▁surg ery ▁Category : S urg ical ▁procedures ▁and ▁techniques <0x0A> </s> ▁Em o ia ▁at roc ost ata , ▁commonly ▁known ▁as ▁the ▁litt oral ▁wh ipt ail - sk ink , ▁mang ro ve ▁sk ink , ▁or ▁litt oral ▁sk