[Verse 1]
Two thousand, the year Bonhoeffer first threw the dice,
Snaked a valve through a vein, no sternum sliced,
Melody's born — bovine jugular sewn tight,
Platinum-iridium stent holding the bite,
Then SAPIEN XT, S3 rolled in balloon-expandable,
Harmony, Alterra — native RVOTs now scalable,
Prestent the runway before the valve lands,
Engineering a nest with metallic hands.
[Chorus]
Katheter oder Messer — frag die Anatomie,
Ask the root, ask the conduit, ask what the heart will see,
Melody fliegt, Sapien sitzt, Harmony hält die Wand,
Aber manchmal, mein Freund, braucht's die chirurgische Hand.
[Verse 2]
Early days the stent would crack like winter glass,
Twenty to twenty-five percent, fractures piling fast,
So we armor it first — prestenting lays the frame,
Low single digits now, fracture loses its claim,
But before you deploy, test the coronary lane,
Balloon it, watch the artery, don't cause a hidden strain,
Positive compression means the artery gets pinched,
Pull back, call the surgeon — the catheter road is cinched.
[Chorus]
Katheter oder Messer — frag die Anatomie,
Ask the root, ask the conduit, ask what the heart will see,
Melody fliegt, Sapien sitzt, Harmony hält die Wand,
Aber manchmal, mein Freund, braucht's die chirurgische Hand.
[Verse 3]
Conduit too small, too calcified, too stiff to flare,
No room for the stent frame, transcatheter's not there,
Endocarditis active, or a scar from past infection,
Surgery clears the tissue, grants a cleaner resurrection,
Tricuspid's leaking bad — fix it while you're inside,
Branch PA's stenotic — arterioplasty applied,
Residual VSD patch, aortic root repair,
RVOT aneurysm resected — surgery owns that layer.
[Verse 4]
Two to three percent per patient-year, the registries agree,
Infection courts the transcatheter valve more than the homograft tree,
So in the young ones planning decades of repair ahead,
That risk calculus whispers surgical thread instead,
Hybrid approach — open the chest, skip the pump and tube,
Through the RV or the PA, direct deploy, no bypass loop,
Shorter time on circuit, selected patients spared,
Surgeon's hand and catheter's reach, together paired.
[Bridge]
Nicht Feinde, sondern Partner — Messer und Draht,
Every patient different, every conduit its own Pfad,
Chirurgie für die Komplexen, Katheter for the straight,
Beides rettet Leben — wähl die richtige Debatte.
[Chorus]
Katheter oder Messer — frag die Anatomie,
Ask the root, ask the conduit, ask what the heart will see,
Melody fliegt, Sapien sitzt, Harmony hält die Wand,
Aber manchmal, mein Freund, braucht's die chirurgische Hand.
[Outro]
So when the conduit's failing, don't just pick a side,
Read the root, the coronary, the valve's architectural pride,
Katheter oder Messer — the answer's engineering, not pride.