Dacron patch closure of aortic annulus mycotic aneurysms

Area of Science:

• Cardiovascular Surgery
• Infectious Diseases
• Aortic Aneurysm

Background:

• Mycotic aortic annular aneurysms pose significant surgical challenges.
• Traditional repair methods can be complex and carry high risks.

Purpose of the Study:

• To evaluate the efficacy of Dacron patch closure for aortic valve replacement in patients with mycotic aortic annular aneurysms.
• To present a simpler and effective surgical option for this complex condition.

Main Methods:

• Surgical repair of six patients with large mycotic aortic annular aneurysms over a 3-year period.
• Aortic valve replacement using Dacron patch closure to manage the abscess and seat the prosthetic valve.
• Suturing the prosthetic valve ring directly to the Dacron patch.

Main Results:

• Successful aortic valve replacement in all six patients.
• No clinical evidence of perivalvular leak 18-48 months post-operation.
• One patient required reoperation for a ventricular septal defect due to partial patch dehiscence.

Conclusions:

• Dacron patch closure is a highly effective and simpler surgical option for aortic valve replacement in mycotic aortic annular aneurysms.
• The technique facilitates secure prosthetic valve seating and minimizes perivalvular leaks.