Results of aortic valve replacement with the Starr-Edwards and Björk-Shiley prostheses

Area of Science:

• Cardiology
• Cardiac Surgery
• Biomedical Engineering

Background:

• Aortic valve replacement is a critical procedure for severe aortic valve disease.
• Starr-Edwards and Björk-Shiley prostheses are commonly used mechanical heart valves.
• Assessing the long-term outcomes and complications of these prostheses is essential.

Purpose of the Study:

• To evaluate the surgical and late mortality associated with aortic valve replacement using Starr-Edwards and Björk-Shiley prostheses.
• To assess the postoperative symptom status of patients receiving these prosthetic valves.
• To identify the incidence and impact of paravalvular leakage.

Main Methods:

• Retrospective analysis of the last 50 patients undergoing aortic valve replacement.
• Inclusion of patients who received either a Starr-Edwards or a Björk-Shiley prosthesis.
• Review of surgical and late mortality data, postoperative symptoms, and echocardiographic findings for paravalvular leakage.

Main Results:

• Surgical mortality was 6% and late mortality was 4%.
• The majority of patients were symptom-free after surgery.
• Paravalvular leakage was suspected in two asymptomatic patients.

Conclusions:

• Aortic valve replacement with Starr-Edwards or Björk-Shiley prostheses demonstrates acceptable short-term and long-term survival rates.
• These mechanical prostheses generally provide good functional recovery and symptom relief.
• Paravalvular leakage may occur but does not necessarily lead to symptoms.