title: Bacterial adherence to different meshes used in abdominal surgery.
abstract: BACKGROUND
  We studied the influence of morphology and type of material of abdominal wall prostheses in the avoidance of bacterial adhesion in acute and chronic mesh infections.
  
  
  METHODS
  Three different types of prostheses were compared: 1) High-density polypropylene monofilament mesh (PMM); 2) low-density PMM; and 3) prostheses composed of low-density polypropylene and a non-porous hydrophilic film (composite prostheses). Microbial adhesion tests were performed using reference strains of Staphylococcus aureus 15981, Staphylococcus epidermidis ATCC 35984, Mycobacterium abscessus DSM 44196, and Mycobacterium fortuitum ATCC 13756 using a protocol described previously.
  
  
  RESULTS
  Both Staphylococcus spp. and M. fortuitum strains showed lower adherence to PMM. Mycobacterium abscessus also exhibited lower adherence to composite prostheses. Both Mycobacterium spp. strains had lower adherence than Staphylococcus spp. strains for all materials except for low-density PMM. Mycobacterium fortuitum showed higher adherence to composite prostheses than M. abscessus, whereas the latter species had higher adherence to high-density PMM than M. fortuitum.
  
  
  CONCLUSIONS
  Depending on the type of bacteria, collagen-coated hydrophilic prostheses with a large surface increased bacterial adherence significantly. These differences should be taken into consideration when choosing a mesh graft, which limits infection in abdominal wall reconstruction.
authors.affiliation: 1 Department of Microbiology, IIS-Fundación Jiménez Díaz , Madrid, Spain .
authors.forename: Ramon
authors.initials: R
authors.lastname: Pérez-Tanoira
authors.forename: Maria-Carolina
authors.initials: MC
authors.lastname: Isea-Peña
authors.forename: Angel
authors.initials: A
authors.lastname: Celdrán
authors.forename: Carlos
authors.initials: C
authors.lastname: García-Vasquez
authors.forename: Jaime
authors.initials: J
authors.lastname: Esteban
mesh_terms: D034841:Abdominal Cavity / Q000601:surgery; D001419:Bacteria / Q000302:isolation & purification*; D001422:Bacterial Adhesion; D058491:Bacterial Load; D013505:Digestive System Surgical Procedures / Q000295:instrumentation; D006801:Humans; D011126:Polypropylenes; D013526:Surgical Mesh / Q000382:microbiology*
chemical_list: D011126:Polypropylenes