[Comparison between bacterial contamination of the circular circuit and of the non-rebreathing circle used with an antibacterial filter].
In order to evaluate whether the risk of bacterial contamination increased during low-flow anaesthesia without bacterial filter compared with non-rebreathing anaesthesia with a disposable bacterial filter, two groups of patient were studied. In the first group a disposable circle absorber system was changed once daily, thus it was used for several patients. In the second group a non-rebreathing system was connected to a disposable bacterial filter before each surgical procedure. Samples for microbiological examination were taken preoperatively from the oropharynx and postoperatively from three locations in the circle system and in the non-rebreathing system. No difference in rates of circuit contamination were observed between the two groups.
Gregorini
P
P
Servizio di Anestesia l e Rianimazione, Ospedale Maggiore C. A. Pizzardi, Bologna.
Ronca
A
A
Festa
C
C
De Patre
P
P
Di Pede
B
B
Giamperoli
A
A
Tangenti
M
M
Pirazzini
M C
MC
D000764:Anesthesia, Closed-Circuit / Q000295:instrumentation*; D004866:Equipment Contamination; D006801:Humans; D008851:Micropore Filters; D013210:Staphylococcus / Q000302:isolation & purification*; D013291:Streptococcus / Q000302:isolation & purification*
Confronto tra la contaminazione batterica del circuito circolare e quella del circuito non rebreathing usato con un filtro antibatterico.