1. Bloodstream infections in haematological cancer patients colonized by multidrug-resistant bacteria
- Author
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Cattaneo, C., Di Blasi, R., Skert, C., Candoni, A., Martino, B., Di Renzo, N., Delia, M., Ballanti, S., Marchesi, F., Mancini, V., Orciuolo, E., Cesaro, S., Prezioso, L., Fanci, R., Nadali, G., Chierichini, A., Facchini, L., Picardi, M., Malagola, M., Orlando, V., Trecarichi, E. M., Tumbarello, M., Aversa, F., Rossi, G., Pagano, L., Passi, Angela, Gramegna, Doriana, Russo, Domenico, Lazzarotto, Davide, Rotilio, Domenico, De Paolis, Maria Rosaria, Simonetti, Edoardo, Innocente, Maria Alessandra, Spadea, Antonio, Mazziotta, Francesco, Pegoraro, Anna, Spolzino, Angelica, Turri, Gloria, Veggia, Barbara, Tumbarello, M. (ORCID:0000-0002-9519-8552), Pagano, L. (ORCID:0000-0001-8287-928X), Cattaneo, C., Di Blasi, R., Skert, C., Candoni, A., Martino, B., Di Renzo, N., Delia, M., Ballanti, S., Marchesi, F., Mancini, V., Orciuolo, E., Cesaro, S., Prezioso, L., Fanci, R., Nadali, G., Chierichini, A., Facchini, L., Picardi, M., Malagola, M., Orlando, V., Trecarichi, E. M., Tumbarello, M., Aversa, F., Rossi, G., Pagano, L., Passi, Angela, Gramegna, Doriana, Russo, Domenico, Lazzarotto, Davide, Rotilio, Domenico, De Paolis, Maria Rosaria, Simonetti, Edoardo, Innocente, Maria Alessandra, Spadea, Antonio, Mazziotta, Francesco, Pegoraro, Anna, Spolzino, Angelica, Turri, Gloria, Veggia, Barbara, Tumbarello, M. (ORCID:0000-0002-9519-8552), and Pagano, L. (ORCID:0000-0001-8287-928X)
- Abstract
Infections by multidrug-resistant (MDR) bacteria are a worrisome phenomenon in hematological patients. Data on the incidence of MDR colonization and related bloodstream infections (BSIs) in haematological patients are scarce. A multicentric prospective observational study was planned in 18 haematological institutions during a 6-month period. All patients showing MDR rectal colonization as well as occurrence of BSI at admission were recorded. One-hundred forty-four patients with MDR colonization were observed (6.5% of 2226 admissions). Extended spectrum beta-lactamase (ESBL)-producing (ESBL-P) enterobacteria were observed in 64/144 patients, carbapenem-resistant (CR) Gram-negative bacteria in 85/144 and vancomycin-resistant enterococci (VREs) in 9/144. Overall, 37 MDR-colonized patients (25.7%) developed at least one BSI; 23 of them (62.2%, 16% of the whole series) developed BSI by the same pathogen (MDRrel BSI), with a rate of 15.6% (10/64) for ESBL-P enterobacteria, 14.1% (12/85) for CR Gram-negative bacteria and 11.1% (1/9) for VRE. In 20/23 cases, MDRrel BSI occurred during neutropenia. After a median follow-up of 80 days, 18 patients died (12.5%). The 3-month overall survival was significantly lower for patients colonized with CR Gram-negative bacteria (83.6%) and VRE (77.8%) in comparison with those colonized with ESBL-P enterobacteria (96.8%). CR-rel BSI and the presence of a urinary catheter were independent predictors of mortality. MDR rectal colonization occurs in 6.5% of haematological inpatients and predicts a 16% probability of MDRrel BSI, particularly during neutropenia, as well as a higher probability of unfavourable outcomes in CR-rel BSIs. Tailored empiric antibiotic treatment should be decided on the basis of colonization.
- Published
- 2018