La sistematica disinfezione dei monitor previene la trasmissione nosocomiale dell'infezione da virus C (HCV) in emodialisi

In order to evaluate the effectiveness of simple procedures such as systematic monitor disinfection or the use of dedicated machines in avoiding nosocomial HCV transmission, we prospectively studied the population of four hemodialysis units (123 pts). General precautions were adopted but anti-HCV+ patients were not isolated. In 'period A', lasting 12 months, monitor disinfection was performed after each dialysis session with sodium hypochlorite. In 'period B', lasting 10 months, 3 units (70 pts) prolonged the same preventive protocol of period A, while the last unit (53 pts) in addition used dedicated machines for anti-HCV+ subjects. Third generation Elisa anti-HCV test was performed every two months throughout the study. No seroconversion occurred in Period A and B. Thus, systematic monitor disinfection prevented nosocomial transmission of HCV infection. The use of dedicated machines seems to be unnecessary. In conclusion, systematic monitor disinfection is a mandatory, simple and effective strategy in avoiding nosocomial transmission of HCV infection in the hemodialysis setting.