Mechanical Valves: Past, Present, and Future-A Review

Area of Science:

• Cardiovascular Surgery
• Biomedical Engineering
• Pharmacology

Background:

• Mechanical heart valves, first developed in the 1950s, provide excellent durability but necessitate lifelong anticoagulant therapy.
• This anticoagulant treatment increases risks of bleeding and thromboembolic events, complicating patient management.
• Current guidelines offer conflicting recommendations for mechanical valve use in patients aged 50-70 years.

Purpose of the Study:

• To review the current literature on mechanical heart valves.
• To emphasize the role of mechanical valves in contemporary clinical practice.
• To discuss emerging alternatives and future innovations in valve technology and anticoagulation.

Main Methods:

• Literature review focusing on mechanical heart valve prostheses.
• Analysis of current guidelines and clinical trial data.
• Emphasis on recent advancements and ongoing research.

Main Results:

• The On-X mechanical valve demonstrates a reduced need for anticoagulation in the aortic position.
• Rivaroxaban shows promising results as an alternative to vitamin K antagonists in preliminary trials.
• Development of novel mechanical valves aims to eliminate the need for anticoagulant therapy.

Conclusions:

• Mechanical valves remain a durable option, but managing anticoagulation risks is crucial.
• Innovations in valve design and anticoagulant pharmacotherapy are evolving to improve safety and efficacy.
• Future developments may offer mechanical valve solutions without the burden of lifelong anticoagulation.