Asymptomatic infection of a surgical mesh implant
DOI:
https://doi.org/10.12775/4059Keywords
hernia, surgical mesh, biofilm, TTCAbstract
Infection involving a surgical implant is one of the most serious complications associated with the use of biomaterials in hernia surgery. Implant infection may manifest clinically in a number of ways. The authors present a case of asymptomatic infection of a mesh implant which had been used to repair a paraumbilical hernia. The infection was diagnosed accidentally during surgery for recurrence. The presence of a biofilm on the surface of the old implant was confirmed by a quantitative method based on 2,3,5-triphenyltetrazolium chloride(TTC) and by scanning electron microscopy (SEM). The biofilm served to protect the microorganisms from the activity of the patient’s immune system, resulting in an asymptomatic clinical course of the infection. It is the authors’ opinion that all implants which are removed during surgery for recurrent hernias should be routinely evaluated for the presence of microorganisms even if no apparent signs of infection can be observed. The TTC method should be included in the diagnostic tools in order to limit the percentage of false negative results.References
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