transcatheter aortic valve implantation
Also written as: TAVI — Transcatheter Aortic Valve Implantation
Minimally invasive procedure for aortic valve replacement using catheter-delivered prosthetic valves.
Full Definition
Transcatheter aortic valve implantation is a less invasive alternative to surgical aortic valve replacement, where a collapsible prosthetic valve is delivered via catheter through peripheral vessels or small chest incisions. The procedure is typically performed for high-risk patients with severe aortic stenosis who are poor candidates for traditional surgery. TAVI can be performed under local anesthesia with conscious sedation or general anesthesia depending on approach and patient factors. Anesthetic considerations include managing hemodynamic instability during valve deployment, rapid ventricular pacing, and potential complications such as aortic regurgitation or conduction disturbances.
Usage
Usage note: May be abbreviated as TAVI or TAVR (replacement); ensure consistency in documentation.
In Context
- "The patient was deemed suitable for transcatheter aortic valve implantation given surgical risk factors." — cardiac catheterization report
- "Successful transcatheter aortic valve implantation was performed via transfemoral approach." — procedure note