aortic root enlargement
Surgical technique to increase the size of the aortic annulus and root to accommodate a larger prosthetic valve.
Full Definition
Aortic root enlargement encompasses various surgical techniques used to increase the effective size of the aortic annulus and root when a patient requires a larger prosthetic valve than the native anatomy allows. These procedures are particularly important in patients with small aortic roots to avoid patient-prosthesis mismatch, which can lead to poor hemodynamic outcomes. Common techniques include the Nicks procedure, Manouguian technique, and Konno aortoventriculoplasty. Each method involves different approaches to enlarging the annulus while maintaining structural integrity and avoiding damage to surrounding structures such as the mitral valve and conduction system.
Usage
Usage note: Specify the particular enlargement technique when known (Nicks, Manouguian, Konno).
In Context
- "Aortic root enlargement using the Manouguian technique allowed implantation of a 23mm bioprosthetic valve." — operative note
- "The decision for aortic root enlargement should consider patient size, expected activity level, and prosthetic valve characteristics." — surgical decision-making guide