Related Experiment Videos
Thirty years experience with heart valve surgery: isolated aortic valve replacement
J R Bessell1, G Gower, D R Craddock
1Cardio-Thoracic Surgical Unit, Royal Adelaide Hospital, Australia.
The Australian and New Zealand Journal of Surgery
|December 1, 1996
Summary
Prosthetic aortic valve replacement offers low mortality and complication rates, with improved symptoms and favorable long-term survival. Pre-operative factors like New York Heart Association (NYHA) class and atrial fibrillation predict outcomes.
Area of Science:
- Cardiothoracic Surgery
- Cardiac Valve Surgery
- Biomaterials in Medicine
Background:
- Open-heart surgery in South Australia commenced 30 years ago.
- A retrospective study evaluated outcomes of prosthetic aortic valve replacement.
- Focus on mortality, complication rates, and factors influencing patient outcomes.
Purpose of the Study:
- To evaluate mortality and complication rates associated with prosthetic aortic valve replacement over 30 years.
- To identify pre-operative and post-operative factors impacting patient outcomes.
- To assess long-term survival and symptomatic improvement following aortic valve replacement.
Main Methods:
- Retrospective analysis of 1322 patients undergoing isolated prosthetic aortic valve replacement (1963-1992).
- Data collected via questionnaires and personal contact for pre-operative, post-operative, and long-term follow-up.
- Survival follow-up data obtained for 94% of patients.
Main Results:
- Hospital mortality rate was 2.9% over 30 years.
- Bjork-Shiley (66%) and Starr-Edwards (31%) valves were most common.
- Long-term survival was shorter for patients with higher New York Heart Association (NYHA) functional classifications and pre-operative atrial fibrillation.
- Pre-operative dyspnea significantly improved; complication rates were low.
Conclusions:
- Aortic valve replacement demonstrates low hospital mortality and complication rates.
- Significant symptomatic improvement is expected post-surgery.
- Aortic valve recipients show favorable long-term prognosis compared to the general population; risk factors are identifiable pre-operatively.