Surgical Treatment of Annuloaortic Ectasia - Replace or Repair?

Area of Science:

• Cardiovascular Surgery
• Thoracic Surgery
• Aortic Surgery

Background:

• Annuloaortic ectasia necessitates surgical intervention, with modified Bentall and David I valve-sparing procedures being common options.
• This study compares the long-term outcomes of these two surgical techniques in patients with annuloaortic ectasia.

Purpose of the Study:

• To compare the long-term results of modified Bentall versus David I valve-sparing procedures for annuloaortic ectasia.
• To evaluate the safety, efficacy, and complication rates of each surgical approach.

Main Methods:

• A retrospective analysis of 181 patients with annuloaortic ectasia who underwent either modified Bentall (n=102) or David I (n=79) procedures between 1994 and 2015.
• Patient groups were compared based on demographics, preoperative health status, and surgical outcomes including mortality, thromboembolism, hemorrhage, endocarditis, survival, and reoperation rates.

Main Results:

• Early mortality was low and similar between groups (3% modified Bentall vs. 2.5% David I).
• Modified Bentall was associated with higher rates of thromboembolism and hemorrhage; David I had higher endocarditis rates.
• Actuarial survival at 10-15 years favored David I (84% vs. 70%), with excellent freedom from reoperation for both (97% modified Bentall, 84% David I). No moderate/severe aortic regurgitation was noted.

Conclusions:

• Both modified Bentall and David I procedures demonstrate excellent early and late outcomes for annuloaortic ectasia.
• The David I procedure is favored due to its safety, reproducibility, and stable aortic valve repair, despite a higher incidence of endocarditis.
• While the modified Bentall procedure carries risks of thromboembolic and hemorrhagic complications, the shorter follow-up for David I limits direct long-term comparison.