Risk of mechanical failure of artificial heart valves - Evidencio
Risk of mechanical failure of artificial heart valves
Calculates the risk of outlet strut fracture (OSF) in Björk-Shiley convexo concave (BSCC) valves in relation to patients’ clinical and valve characteristics.
Research authors: Pavlou M, Ambler G, Seaman SR, Guttmann O, Elliott P, King M, Omar RZ.
Version: 1.6
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  • Cardiology
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Risk of mechanical failure of artificial heart valve:

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This model calculates the risk of outlet strut fracture (OSF) in Björk-Shiley convexo concave (BSCC) valves in relation to patients’ clinical and valve characteristics.

In a cohort of 2977 patients with 3325 valves by Omar et al (2001), the overall OSF rate in BSCC valves was 0.17%/year. No dominant clinical factor of risk was found, but multiple regression analysis identified age, body surface area, valve size, shop order fracture rate, and manufacturing period as risk factors for OSF.

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This algorithm is provided for educational, training and information purposes. It must not be used to support medical decision making, or to provide medical or diagnostic services. Read our full disclaimer.

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