Aortic Annuloplasty: Focus on the Use of an External Teflon Ring.
Surg Technol Int
; 422023 07 18.
Article
in En
| MEDLINE
| ID: mdl-37466920
ABSTRACT
Aortic annuloplasty has been clearly demonstrated to have a protective influence in aortic valve repair. Over the past 20 years, different annuloplasty concepts have been proposed by different groups. However, the most appropriate approach to enable long-term annular stability remains highly controversial. The aim of this article is to give a general overview of all types of aortic annuloplasty, particularly focusing on the use of an external Teflon ring, as proposed by our group. In this technique, external root dissection is performed in the same fashion as for reimplantation; the only difference is that it is necessary to go below the coronary ostia take-off. A series of pledgeted sutures (usually between 6 and 9 sutures) are placed at the level of the virtual basal ring. The external ring is made using a Teflon strip with a length of 8 to 9 cm, to reduce the annulus to a diameter of between 21 and 23 mm. The sub-annular sutures are then passed at the appropriate level through the Teflon strip and the strip is parachuted outside the aortic root base, passing under the coronary ostia. The two ends of the Teflon strip are tied at the level of the non-coronary sinus. Aortic annuloplasty is a crucial step to improve valve competence and stabilization. While several techniques offer good mid- to long-term results, annuloplasty with an external Teflon ring appears to be a simple and effective alternative to guarantee stable root diameters. Longer follow-up studies are needed to confirm the mid- to long-term results.
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Type of study:
Observational_studies
/
Prognostic_studies
Language:
En
Journal:
Surg Technol Int
Year:
2023
Document type:
Article
Affiliation country:
Italy