Carbapenem-Resistant Acinetobacter baumannii: Concomitant Contamination of Air and Environmental Surfaces. (5th April 2016)

• Record Type: Journal Article
• Authors: Shimose, Luis A.; Masuda, Eriko; Sfeir, Maroun; Berbel Caban, Ana; Bueno, Maria X.; dePascale, Dennise; Spychala, Caressa N.; Cleary, Timothy; Namias, Nicholas; Kett, Daniel H.; Doi, Yohei; Munoz-Price, L. Silvia
• Is Part Of: Infection control and hospital epidemiology. Volume 37:Number 7(2016)
• Page Start: 777
• Page End: 781
• Publication Date: 2016-04-05
• Subjects: Nosocomial infections -- Epidemiology -- Periodicals; Health facilities -- Sanitation -- Periodicals; Hospital buildings -- Sanitation -- Periodicals; Cross Infection -- Periodicals; Epidemiology -- Periodicals; Hospitals -- Periodicals; Infection Control -- Periodicals; 614.44
• DOI: 10.1017/ice.2016.69
• Languages: English
• ISSNs: 0899-823X

Abstract

Abstract : OBJECTIVE: To concomitantly determine the differential degrees of air and environmental contamination by Acinetobacter baumannii based on anatomic source of colonization and type of ICU layout (single-occupancy vs open layout). DESIGN: Longitudinal prospective surveillance study of air and environmental surfaces in patient rooms. SETTING: A 1, 500-bed public teaching hospital in Miami, Florida. PATIENTS: Consecutive A. baumannii –colonized patients admitted to our ICUs between October 2013 and February 2014. METHODS: Air and environmental surfaces of the rooms of A. baumannii –colonized patients were sampled daily for up to 10 days. Pulsed-field gel electrophoresis (PFGE) was used to type and match the matching air, environmental, and clinical A. baumannii isolates. RESULTS: A total of 25 A. baumannii –colonized patients were identified during the study period; 17 were colonized in the respiratory tract and 8 were colonized in the rectum. In rooms with rectally colonized patients, 38.3% of air samples were positive for A. baumannii ; in rooms of patients with respiratory colonization, 13.1% of air samples were positive ( P =.0001). In rooms with rectally colonized patients, 15.5% of environmental samples were positive for A. baumannii ; in rooms of patients with respiratory colonization, 9.5% of environmental samples were positive ( P =.02). The rates of air contamination in the open-layout and single-occupancy ICUs were 17.9% and 21.8%, respectively ( P =.5). Environmental surfaces were positive in 9.5% of instances in open-layout ICUs versus 13.4% in single-occupancy ICUs ( P =.09). CONCLUSIONS: Air and environmental surface contaminations were significantly greater among rectally colonized patients; however, ICU layout did not influence the rate of contamination. Infect Control Hosp Epidemiol 2016;37:777–781