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February 1, 1996Journal of Biomechanical Engineering

Cavitation Dynamics of Medtronic Hall Mechanical Heart Valve Prosthesis: Fluid Squeezing Effect

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Population

In vitro flow system simulating the closing event in the mitral position using Medtronic Hall tilting disk…

Design

Preclinical

Authors

CLC. S. LeeKCK. B. ChandranLCLea-Der Chen

Discussion

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Overview

May indicate cavitation risk below physiological rates in mechanical valves; hypothesis-generating and leaves open human relevance.

Structured PICO

P
Population
In vitro flow system simulating the closing event in the mitral position using Medtronic Hall tilting disk mechanical heart valves
I
Intervention
Controlled transvalvular loading rates
O
Outcome
Cavitation initiation and dynamics (pressure wave forms and photographs)surrogate

Fluid squeezing in Medtronic Hall mechanical valves induces cavitation at loading rates lower than normal physiological levels, suggesting a mechanism for valve and blood damage.

Cite This Study

Lee et al. (1996) studied this question.

synapsesocial.com/papers/6a855cb035bc0eada8d59898https://doi.org/10.1115/1.2795951
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Also Consider

Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context:

  1. 1Cavitation Dynamics of Mechanical Heart Valve Prostheses1994 · 50 citations
  2. 2Transient Behavior Analysis of a Mechanical Monoleaflet Heart Valve Prosthesis in the Closing Phase1994 · 17 citations
  3. 3Relative Blood Damage in the Three Phases of a Prosthetic Heart Valve Flow Cycle1993 · 64 citations
  4. 4Leaflet Embolisation from Duromedics Valves: A Report of two Cases1991 · 15 citations
  5. 5Escape of a Leaflet from a St. Jude Medical Prosthesis in the Mitral Position1983 · 35 citations