Isolation of antibiotic-resistant gram-negative organisms from donor respiratory culture does not impact non-lung...

Multidrug-resistant (MDR) and extensively drug-resistant (XDR) gram-negative bacteria may be transmitted from organ donors to solid organ transplant recipients and are associated with poor outcomes post-transplant.

We reported the prevalence of MDR/XDR gram-negative respiratory colonization among 702 deceased organ donors in the New York City area from 2011 to 2014 and performed chart reviews for a subset of recipients to determine whether donor respiratory culture results were predictive of subsequent recipient infection or used to guide post-transplant antimicrobial therapy.

Fifty donors (7% of the cohort) had MDR or XDR gram-negative bacteria isolated from endotracheal aspirate or bronchoalveolar lavage culture. Organs from these 50 donors were transplanted into 120 recipients; chart review was performed for 89 of these recipients (38 kidney, 32 liver, 11 heart, 6 kidney/pancreas, 1 liver/kidney, 1 lung). None of the 89 recipients of organs from donors with MDR/XDR gram-negative respiratory colonization were reported to have a donor-derived infection post-transplant, and chart review for the 88 non-lung recipients indicated that peri-transplant antibiotics were not adjusted specifically for donor respiratory culture results.

These results suggest that donor respiratory culture results are not predictive of post-transplant infection in non-lung recipients and are unlikely to impact post-transplant management.