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Heart Valves

Heart Valves

The human heart is a complex organ with an intricate system of valves that regulate blood flow. There are two main types of valves: atrioventricular (AV) valves and semilunar valves.
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Protocol for Relative Hydrodynamic Assessment of Tri-leaflet Polymer Valves

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Published on: October 18, 2013

Artificial heart valves.

G L Grunkemeier¹, S H Rahimtoola

¹Medical Data Research Center, St. Vincent Heart Institute, Oregon Health Sciences University, Portland 97225.

Annual Review of Medicine

|January 1, 1990

Summary

This review examines heart valve prostheses, focusing on long-term complications like thromboembolism, thrombosis, bleeding, and structural failure. Understanding these issues is crucial for improving patient outcomes with artificial heart valves.

Area of Science:

Cardiovascular Medicine
Biomedical Engineering
Prosthetic Devices

Background:

Heart valve prostheses are critical for treating valvular heart disease.
Long-term performance and potential complications remain a significant clinical concern.
Understanding failure modes is essential for device development and patient management.

Purpose of the Study:

To provide an overview of major complications associated with long-term heart valve prosthesis performance.
To synthesize current clinical data on device-related adverse events.
To inform clinical practice and future research directions in cardiac valve replacement.

Main Methods:

Review of current clinical reports and literature.
Focus on major complications impacting long-term valve function.

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Analysis of data pertaining to thromboembolism, thrombosis, bleeding, and structural failure.

Main Results:

Thromboembolism and thrombosis are significant risks, often linked to anticoagulation therapy.
Anticoagulant-related bleeding presents a major challenge in managing patients with mechanical heart valves.
Structural failure of valve components can occur over time, necessitating reintervention.

Conclusions:

Long-term management of heart valve prostheses requires careful consideration of thromboembolic and bleeding risks.
Structural integrity and patient-specific factors influence prosthesis longevity.
Continued research is needed to minimize complications and optimize outcomes for patients with prosthetic heart valves.