[Verse 1] When truncus needs repair, we build a pathway new From right ventricle to PA, here's what we can do Pulmonary homograft leads the pack with perfect flow Cadaveric PA with valve, best hemodynamics show But limited supply and calcification's price Especially small sizes, availability's not nice [Chorus] Four conduits to choose from, each one has its place Homografts and synthetics in this cardiac space But remember the truth that every surgeon knows No conduit grows with children, that's how the story goes Multiple replacements through their lifetime ahead Three to five operations, that's the path we tread [Verse 2] Aortic homograft brings more availability Cadaveric vessel with valve, better supply we see But oversizing happens and calcification too Gore-Tex synthetic offers sizing that's true PTFE material with consistent dimension But higher gradients and stenosis prevention [Chorus] Four conduits to choose from, each one has its place Homografts and synthetics in this cardiac space But remember the truth that every surgeon knows No conduit grows with children, that's how the story goes Multiple replacements through their lifetime ahead Three to five operations, that's the path we tread [Bridge] Bovine jugular, Contegra's the name Very small sizes available in this game But endocarditis risk and distal stenosis wait Hancock porcine valve has a track record great Porcine valve in Dacron, long-term data's strong But calcification and small sizes don't last long [Verse 3] Twelve millimeter conduit for a newborn's tiny chest Four and half kilos, it fits them at their best But as they grow bigger, that conduit stays the same Stenosis develops, back to surgery again This is the reality we must help families see Lifetime of operations, that's the guarantee [Outro] Choose your conduit wisely, weigh each advantage clear But know that growth means change, year after year From homografts to synthetics, each has its role Multiple revisions, that's the long-term goal
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