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

Zakaria Jalal (1) , Louise Galmiche (2) , David Lebeaux (1) , Olivier Villemain (1) , Georgia Brugada (1) , Mehul Patel (1) , Jean-Marc Ghigo (2) , Christophe Beloin (2) , Younes Boudjemline (1)

1 CHU Necker - Enfants Malades [AP-HP]
2 Génétique des Biofilms

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.

Keywords: Animals; Bacterial Adhesion/*physiology; Bioprosthesis/*microbiology; Cattle; Endocarditis; Fallot; Heart Valve Prosthesis Implantation/*adverse effects; Heart Valve Prosthesis/*microbiology; Humans; Jugular Veins/*microbiology/transplantation; Melody valve; Staphylococcus aureus/isolation & purification; Streptococcus sanguis/isolation & purification; Swine; Transcatheter pulmonary valve

Domains: Bacteriology

Zakaria Jalal, Louise Galmiche, David Lebeaux, Olivier Villemain, Georgia Brugada, et al.. Selective propensity of bovine jugular vein material to bacterial adhesions: An in-vitro study. International Journal of Cardiology, 2015, 198, pp.201 - 205. ⟨10.1016/j.ijcard.2015.07.004⟩. ⟨pasteur-01378736⟩