Advanced
Technical
IVT
cusp effective height
The distance from the aortic annulus to the free edge of the aortic valve cusp at the point of commissural attachment, crucial for valve competency.
Full Definition
Cusp effective height represents the vertical distance from the lowest point of cusp attachment at the annular level to the cusp free edge measured at the commissures. This measurement is critical in valve-sparing procedures as inadequate effective height (<9mm) results in valve prolapse and regurgitation. Effective height can be restored through cusp repair techniques including plication, patch augmentation, or free edge reinforcement.
Usage
Usage note: Measured at commissures, not mid-cusp; critical measurement for valve repair success.
In Context
- "The non-coronary cusp effective height of 6mm indicated the need for cusp repair during valve-sparing surgery." — Intraoperative measurement
- "Achieving adequate effective height in all cusps is essential for durable valve repair results." — Surgical technique article
Also known as
effective height
Don't confuse with
cusp length
cusp height