[A clinical and experimental study on precious metal ventilation tubes (author's transl)]

Incompatibility reactions which lead to a profuse aural discharge and often necessitate the removal of the ventilation tube occur in approximately 10% of patients if ventilation tubes made of synthetic materials are used. We have used golden and other precious metal alloy grommets in patients after extensive bacteriological and animal experiments. The most important advantage is the oligodynamic action which gives the surface of the ventilation tube repellent properties against bacteria. The drainage function is excellent due to the smooth surface structure and no incompatibility reactions were seen.