72 Hours Standby Time of Wet-Primed Cardiopulmonary Bypass Circuits: A Microbiological Quality Assurance Study

In a microbiological sample study of 15 wet-primed cardiopulmonary
bypass circuits in standby mode for 72 hours under regular clinical
conditions, no contamination of the priming fluid or the connectors
could be detected. Hand contact surfaces of the machines demonstrated
environmental microorganisms. These findings indicate the safe use of
primed cardiopulmonary bypass circuits in standby mode for 72 hours. A
surface disinfection of hand contact surfaces immediately before use is
recommended.