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J Hosp Infect. 1984 Dec;5(4):371-6.

Pseudomonas aeruginosa cross-infection following endoscopic retrograde cholangiopancreatography.


In a 6 week period, three of 50 patients developed Pseudomonas aeruginosa septicaemia following Endoscopic Retrograde Cholangiopancreatography (ERCP). Pseudomonas aeruginosa serotype 10 was isolated from each of the patients and from the endoscope. The outbreak was related to inadequate disinfection of the air and water channel of the endoscope. Following the introduction of a modified decontamination technique, which involved rinsing the air and water channel with glutaraldehyde, no further cases of pseudomonas infection occurred, and the organism could not be isolated from the instrument. Obstruction of the biliary tract was a predisposing factor in the development of infection; and administration of antibiotics immediately following the procedure failed to prevent it. This may have been due to inadequate dosage. We suggest that patients presenting for ERCP, in whom obstruction of the biliary tract is suspected, should come prepared for immediate drainage of the obstructed system at the time of the procedure.

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