ACINETOBACTER CALCOACETICUS OUTBREAK ASSOCIATED WITH PERITONEAL DIALYSIS

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Abstract
Investigation of an outbreak of contamination of dialysis drainage fluid with Acinetobacter calcoaceticus var. anitratus identified a previously unrecognized source for dialysis associated Infections. Over a 4-month period, 25 peritoneal dialysis treatments were administered to 13 hospital patients. Of the 24 treatments for which culture results were available, 14 were associated with dialysis drainage fluid cultures positive for A. calcoaceticus. A water bath used to warm bottles of peritoneal dialysate before use was the reservoir for the bacteria, and Investigation showed In vitro that bath water could contaminate the dialysate. It appears likely that the dialysate became contaminated when the prong of the fluid administration set was Inserted through the rubber bung on the dialysate bottles. This outbreak Illustrates the potential Importance of environmental reservoirs in Infections complicating peritoneal dialysis.