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© J.M. Ghigo (Institut Pasteur) and Brigite Arbeille (LBC-ME. Faculté de Médecine de Tours)
Colorized scanning electron microscopy of an E. coli biofilm developing on a glass surface
Publication : International Journal of Cardiology

Selective propensity of bovine jugular vein material to bacterial adhesions: An in-vitro study.

Scientific Fields
Diseases
Organisms
Applications
Technique

Published in International Journal of Cardiology - 06 Jul 2015

Jalal Z, Galmiche L, Lebeaux D, Villemain O, Brugada G, Patel M, Ghigo JM, Beloin C, Boudjemline Y.

Link to Pubmed [PMID] – 26173058

Int J Cardiol. 2015 Nov. 1;198:201-205. [Epub ahead of print Jul. 6]

BACKGROUND:

Percutaneous pulmonary valve implantation (PPVI) using Melody valve made of bovine jugular vein is safe and effective. However, infective endocarditis has been reported for unclear reasons. We sought to assess the impact of valvular substrates on selective bacterial adhesion.

METHODS:

Three valved stents (Melody valve, homemade stents with bovine and porcine pericardium) were tested in-vitro for bacterial adhesion using Staphylococcus aureus and Streptococcus sanguinis strains.

RESULTS:

Bacterial adhesion was higher on bovine jugular venous wall for S. aureus and on Melody valvular leaflets for S. sanguinis in control groups and significantly increased in traumatized Melody valvular leaflets with both bacteria (traumatized vs non traumatized: p=0.05). Bacterial adhesion was lower on bovine pericardial leaflets.

CONCLUSION:

Selective adhesion of S. aureus and S. sanguinis pathogenic strains to Melody valve tissue was noted on healthy tissue and increased after implantation procedural steps.

http://www.ncbi.nlm.nih.gov/pubmed/26173058