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January 1, 1982Scandinavian Journal of Thoracic and Cardiovascular Surgery

The Björk–Shiley Heart Valve Prosthesis.Flow Characteristics of the New 70° Model

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Population

In vitro flow study model evaluating heart valve prostheses

Comparison

Modified convexo-concave Björk-Shiley valve vs Previous Björk-Shiley valve models

Design

Preclinical

Authors

DSDana M. StevensonUniversity of Southern CaliforniaAYAjit P. YoganathanInterventional / Structural CardiologyRFRobert H. FranchNational Institutes of Health

Discussion

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Implication

Supports preclinical testing of convexo-concave valve modifications; leaves open translation to lower thrombosis rates in patients.

Structured PICO

P
Population
In vitro flow study model evaluating heart valve prostheses
I
Intervention
Modified convexo-concave Björk-Shiley valve (new 70° model)
C
Comparator
Previous Björk-Shiley valve models
O
Outcome
Fluid dynamic characteristics including pressure drop, velocity, and regurgitationsurrogate

The modified 70° convexo-concave Björk-Shiley valve demonstrates improved fluid dynamics in vitro, reducing pressure drop and stagnation zones at the cost of slightly increased regurgitation.

Cite This Study

Stevenson et al. (1982) studied this question.

synapsesocial.com/papers/6a705565f44fa9f079ddf282https://doi.org/10.3109/14017438209100601
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Also Consider

Synapse has enriched 4 closely related papers on similar clinical questions. Consider them for comparative context:

  1. 1The Björk – Shiley Aortic Prosthesis: Flow Characteristics of the Present Model vs. The Convexo-Concave Model1980 · 28 citations
  2. 2Experimental Evaluation of Mechanical Haemolysis with Starr-Edwards, Kay-Shiley and Björk-Shiley Valves1976 · 16 citations
  3. 3The Björk-Shiley aortic prosthesis: flow characteristics, thrombus formation and tissue overgrowth.1978 · 156 citations
  4. 4Comparison between theIn VitroFlow Dynamics of the Standard and the Convexo-Concave Björk-Shiley Tilting Disc Valve Prostheses1979 · 23 citations