[Verse 1]
When truncus arteries get their repair
Pulmonary branches need special care
At anastomotic sites where surgeons connect
Stenosis can form from what you'd expect
[Verse 2]
Kinking and distortion change the flow
Progressive narrowing starts to show
Right PA branch with gradients that climb
Twenty to twenty-seven over time
[Chorus]
Branch stenosis, watch it grow
Twenty-seven to thirty-two we know
Anastomotic sites and kinking too
LPA ostial changes coming through
Balloon angioplasty, stenting's the way
When gradients rise day by day
[Verse 3]
Left pulmonary artery tells its tale
Mild stenosis making vessels pale
Ostial deformation at the start
Changes the pathway from the heart
[Verse 4]
Progressive nature of this condition
Requires careful monitoring and recognition
Gradients climbing from twenty baseline
Thirty-two millimeters mercury sign
[Chorus]
Branch stenosis, watch it grow
Twenty-seven to thirty-two we know
Anastomotic sites and kinking too
LPA ostial changes coming through
Balloon angioplasty, stenting's the way
When gradients rise day by day
[Bridge]
Future interventions we must plan
Balloon dilation when pressures expand
Stenting may be the final call
When stenosis threatens blood flow to all
[Verse 5]
Documentation shows the progression clear
From mild stenosis year after year
Both branches affected in their own way
Planning treatment for another day
[Chorus]
Branch stenosis, watch it grow
Twenty-seven to thirty-two we know
Anastomotic sites and kinking too
LPA ostial changes coming through
Balloon angioplasty, stenting's the way
When gradients rise day by day
[Outro]
Truncus repair brings complications new
Branch stenosis is one that we pursue
Monitor gradients and watch them climb
Intervention planned for the right time