Makindo Medical Notes"One small step for man, one large step for Makindo" |
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Problems with prosthetic valve issues should be referred urgently to a Cardiologist
Feature | Biological (Bioprosthetic) Valves | Mechanical (Metal) Valves |
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Material | Made from animal tissues (porcine or bovine) or human donor valves (homografts). | Made from durable materials such as titanium or carbon-based compounds. |
Longevity | Lasts approximately 10-15 years. | Can last a lifetime, often over 20-30 years. |
Anticoagulation Requirements |
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Risk of Thrombosis | Lower risk of thrombosis compared to mechanical valves, similar to native valves. | Higher risk of thrombosis, necessitating lifelong anticoagulation. |
Haemodynamics | Offers better hemodynamics, with a more natural flow similar to native valves. | Slightly less natural flow compared to bioprosthetic valves due to mechanical nature. |
Infection Risk (Endocarditis) | Risk of infection, but similar to mechanical valves. Requires antibiotic prophylaxis for certain procedures. | At risk for prosthetic valve endocarditis. Requires antibiotic prophylaxis for certain procedures. |
Sound | Bioprosthetic valves are usually silent. | Mechanical valves often produce an audible "click" when opening and closing. |
Complications |
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Clinical Indications |
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Examples |
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