Long-term results after aortic valve-sparing operation (David I)

Area of Science:

• Cardiovascular Surgery
• Aortic Valve Repair
• Aortic Disease Management

Background:

• The valve-sparing David procedure is increasingly adopted for aortic valve repair.
• Limited long-term data exists for this surgical technique.

Purpose of the Study:

• To evaluate the long-term efficacy and safety of the valve-sparing David I procedure.
• To report outcomes in a large cohort of patients undergoing aortic valve repair.

Main Methods:

• A retrospective analysis of 126 patients who underwent the David procedure between 1993 and 2000.
• Inclusion criteria involved various aortic pathologies, including Marfan syndrome and acute aortic dissection type A (AADA).
• Follow-up included echocardiography and assessment of clinical outcomes, survival, and reoperation rates.

Main Results:

• Early mortality was 4.8%, with higher rates in AADA patients.
• Late mortality was 25.4%, with cardiac or procedure-related causes predominating.
• Survival at 10 years was 70%, and freedom from valve replacement was 87%.
• No stroke or major bleeding events occurred during 790 patient-years of follow-up.
• Aortic insufficiency was mild (≤ grade I) in 89.5% of evaluated patients.

Conclusions:

• The valve-sparing David I procedure yields acceptable long-term results across diverse underlying pathologies.
• This aortic valve repair technique is associated with exceedingly low rates of valve-related complications.
• The procedure offers a durable solution for aortic valve disease, preserving native valve function.