[Verse 1]
When embryology fails to make it right
One trunk feeds both the body and lung sight
Blood floods the pulmonary bed too high
Systemic pressure makes the vessels cry
We need to fix what nature didn't do
Create two paths where there was only one route through
[Chorus]
Disconnect, close, establish, repair, and seal
Five steps to make the circulation real
Separate the pathways, give each heart its role
That's the surgeon's ultimate goal
Two circuits flowing, no more mixing blood
Truncus repair restores the normal flood
[Verse 2]
First disconnect those pulmonary trees
From the truncus where they shouldn't be
Then close the VSD with a sturdy patch
Left ventricle gets its exclusive catch
The truncus becomes the new aorta now
One chamber, one outflow, that's how
[Chorus]
Disconnect, close, establish, repair, and seal
Five steps to make the circulation real
Separate the pathways, give each heart its role
That's the surgeon's ultimate goal
Two circuits flowing, no more mixing blood
Truncus repair restores the normal flood
[Bridge]
Right ventricle needs a brand new way
A conduit with valve will save the day
Patch the hole where arteries were torn
Close any shunt where mixing was born
Before repair: both ventricles mixed and flowed
After repair: each takes its destined road
[Verse 3]
Right side pumps through conduit to lung
Left side through truncal valve gets blood flung
To body tissues that were starved before
Now oxygen-rich blood reaches every shore
Two separate circuits, no more compromise
The goal achieved before our very eyes
[Final Chorus]
Disconnect, close, establish, repair, and seal
Five steps to make the circulation real
Right ventricle to lungs, left ventricle to body
Truncus repair makes circulation godly
Two circuits flowing, no more mixing blood
Surgery completes what embryology should
[Outro]
From single trunk to dual circulation
Surgery provides the separation
The goal complete, the heart beats true
Two pathways where there once was two