[Verse 1] When the baby's born and takes that first breath Pulmonary resistance starts to fall But in truncus arteriosus, that spells death High pressure floods where it shouldn't go at all The lungs become the path of least resistance Blood gets stolen from the body's needs While the heart pumps harder in persistence Fighting a battle that it cannot win with speed [Chorus] Pulmonary overcirculation Stealing blood from circulation Heart failure, edema, poor perfusion This is hemodynamic confusion Tick tock, the clock is running down Three to six months till the damage can't turn around Eisenmenger's coming to town When the vessels thicken and shut it down [Verse 2] Both ventricles dilate from volume overload Pumping massive amounts but nothing's getting through The liver swells from back-pressure on the road While the lungs fill up like morning dew Tachypnea makes the feeding hard Baby's growing slow, can't catch their breath The systemic flow is being scarred Racing against time to prevent their death [Chorus] Pulmonary overcirculation Stealing blood from circulation Heart failure, edema, poor perfusion This is hemodynamic confusion Tick tock, the clock is running down Three to six months till the damage can't turn around Eisenmenger's coming to town When the vessels thicken and shut it down [Bridge] High pressure, high flow Makes the arterioles grow Thickening walls, constricting tight Soon they'll close up day and night Once Eisenmenger takes its hold Surgery's off the table, story's told Irreversible, the damage done The battle's lost, cannot be won [Chorus] Pulmonary overcirculation Stealing blood from circulation Heart failure, edema, poor perfusion This is hemodynamic confusion Tick tock, the clock is running down Three to six months till the damage can't turn around Eisenmenger's coming to town When the vessels thicken and shut it down [Outro] The mixing's just the start you see The real danger is where blood flows free To lungs that can't handle the pressure load Time's running out on this dangerous road
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