[Decontamination tests of heart valve grafts with cialit]

After exposure of contaminated xenogenous aortic valve grafts to 0.5 g% Cialit solution for 30 minutes, to 0.1 g% solution for 24 hours, or to 0.02 g% solution for 288 hours, growth of germs on the graft had stopped. Cialit has bacteriostatic and fungistatic effectiveness and fair stability of solubility; nevertheless it ought to be used with reservation. No safe destruction of microbes- spores and viruses in particular- can be guaranteed at acceptable Cialit concentrations of 0.1 g% and below.