Elderly patients undergoing aortic valve replacement (AVR) showed significant functional improvement. Despite risks, 93% of survivors improved to New York Heart Association class I or II, demonstrating AVR
Area of Science:
Cardiovascular Surgery
Geriatric Cardiology
Biomaterials and Medical Devices
Background:
Aortic valve replacement (AVR) is a critical procedure for elderly patients with severe aortic valve disease.
Patients aged 70+ often present with advanced New York Heart Association (NYHA) functional class III/IV, high rates of angina, and syncope.
Optimal management strategies for AVR in the elderly remain an area of active investigation.
Purpose of the Study:
To report the outcomes of aortic valve replacement (AVR) in elderly patients (aged 70+) with severe aortic valve disease.
To evaluate the safety and efficacy of tilting disk valves in this high-risk population.
To assess long-term survival, functional status, and complication rates following AVR.
Main Methods:
Retrospective analysis of 62 consecutive patients aged 70 or more undergoing AVR between 1970 and 1982.
Patients presented with NYHA functional class III (29%) or IV (71%), with diagnoses including aortic stenosis, regurgitation, or mixed disease.
Tilting disk valves were implanted, with patients managed on either warfarin anticoagulation (80%) or antiplatelet therapy (20%).
Main Results:
The operative myocardial infarction rate was 6.4%.
Late mortality was 22.6% (4.8% cardiac deaths) over a mean follow-up of 26 months.
93% of surviving patients improved to NYHA class I or II, with a 5-year survival probability of 71%.
Conclusions:
Aortic valve replacement (AVR) in elderly patients (70+) significantly improves functional status and survival.
Tilting disk valves demonstrated acceptable thromboembolic (1.6%) and disinsertion (3.2%) rates in this cohort.
Despite operative risks and late mortality, AVR offers substantial long-term benefits for selected elderly patients with severe aortic valve disease.