scholarly journals Duration of Colonization With Klebsiella pneumoniae Carbapenemase-Producing Bacteria at Long-Term Acute Care Hospitals in Chicago, Illinois

2016 ◽  
Vol 3 (4) ◽  
Author(s):  
Manon R. Haverkate ◽  
Shayna Weiner ◽  
Karen Lolans ◽  
Nicholas M. Moore ◽  
Robert A. Weinstein ◽  
...  

Abstract Background.  High prevalence of Klebsiella pneumoniae carbapenemase (KPC)-producing Enterobacteriaceae has been reported in long-term acute care hospitals (LTACHs), in part because of frequent readmissions of colonized patients. Knowledge of the duration of colonization with KPC is essential to identify patients at risk of KPC colonization upon readmission and to make predictions on the effects of transmission control measures. Methods.  We analyzed data on surveillance isolates that were collected at 4 LTACHs in the Chicago region during a period of bundled interventions, to simultaneously estimate the duration of colonization during an LTACH admission and between LTACH (re)admissions. A maximum-likelihood method was used, taking interval-censoring into account. Results.  Eighty-three percent of patients remained colonized for at least 4 weeks, which was the median duration of LTACH stay. Between LTACH admissions, the median duration of colonization was 270 days (95% confidence interval, 91–∞). Conclusions.  Only 17% of LTACH patients lost colonization with KPC within 4 weeks. Approximately half of the KPC-positive patients were still carriers when readmitted after 9 months. Infection control practices should take prolonged carriage into account to limit transmission of KPCs in LTACHs.

2013 ◽  
Vol 34 (1) ◽  
pp. 56-61 ◽  
Author(s):  
Caroline J. Thurlow ◽  
Kavitha Prabaker ◽  
Michael Y. Lin ◽  
Karen Lolans ◽  
Robert A. Weinstein ◽  
...  

Objective.To determine anatomic sites of colonization in patients and to assess environmental contamination with Klebsiella pneumoniae carbapenemase (KPC)-producing Enterobacteriaceae.Design, Setting, and Patients.We conducted a cross-sectional microbiologic survey of 33 patients and their environments at 6 long-term acute care hospitals (LTACHs) in metropolitan Chicago. Swab samples of anatomic sites and inanimate surfaces in patients' rooms and common areas were cultured. blaKPC was verified by polymerase chain reaction. Patient charts were reviewed for covariates known to be associated with colonization and environmental contamination.Results.Mean age was 66 years. Median length of stay prior to surveillance was 50 days. Thirty (91%) patients were mechanically ventilated, 32 (97%) were bedbound, and 27 (82%) had fecal incontinence. Of the 24 patients with KPC-producing Enterobacteriaceae recovered from 1 or more anatomic sites, 23 (96%) had KPC-producing Enterobacteriaceae detected at 1 or more skin sites. Skin colonization was more common in patients with positive rectal/stool swab cultures or positive clinical cultures (P <.001). Rectal/stool swab was the single most sensitive specimen for detecting KPC-producing Enterobacteriaceae colonization (sensitivity, 88%; 95% confidence interval [CI], 68%-97%); addition of inguinal skin swab culture resulted in detection of all colonized patients (sensitivity, 100%; 95% CI, 86%-100%). Only 2 (0.5%) of 371 environmental specimens grew KPC-producing Enterobacteriaceae.Conclusions.Culture of more than 1 anatomic site was required to detect all KPC-producing Enterobacteriaceae-colonized Patients. Skin colonization was common, but environmental contamination was rare. These results can guide development of multimodal interventions for control of KPC-producing Enterobacteriaceae in LTACHs.


2013 ◽  
Vol 57 (9) ◽  
pp. 1246-1252 ◽  
Author(s):  
Michael Y. Lin ◽  
Rosie D. Lyles-Banks ◽  
Karen Lolans ◽  
David W. Hines ◽  
Joel B. Spear ◽  
...  

2014 ◽  
Vol 35 (4) ◽  
pp. 367-374 ◽  
Author(s):  
Rosie D. Lyles ◽  
Nicholas M. Moore ◽  
Shayna B. Weiner ◽  
Monica Sikka ◽  
Michael Y. Lin ◽  
...  

Objective.To identify differences in organizational culture and better understand motivators to implementation of abundle intervention to control Klebsiella pneumoniae carbapenemase–producing Enterobacteriaceae (KPC).Design.Mixed-methods study.Setting.Four long-term acute care hospitals (LTACHs) in Chicago.Participants.LTACH staff across 3 strata of employees (administration, midlevel management, and frontline clinical workers).Methods.Qualitative interviews or focus groups and completion of a quantitative questionnaire.Results.Eighty employees (frontline, 72.5%; midlevel, 17.5%; administration, 10%) completed surveys and participated in qualitative discussions in August 2012. Although 82.3% of respondents felt that quality improvement was a priority at their LTACH, there were statistically significant differences in organizational culture between staff strata, with administrative-level having higher organizational culture scores (ie, more favorable responses) than midlevel or frontline staff. When asked to rank the success of the KPC control program, mean response was 8.0 (95% confidence interval, 7.6–8.5), indicating a high level of agreement with the perception that the program was a success. Patient safety and personal safety were reported most often as personal motivators for intervention adherence. The most convergent theme related to prevention across groups was that proper hand hygiene is vital to prevention of KPC transmission.Conclusions.Despite differences in organizational culture across 3 strata of LTACH employees, the high degree of convergence in motivation, understanding, and beliefs related to implementation of a KPC control bundle suggests that all levels of staff may be able to align perspectives when faced with a key infection control problem and quality improvement initiative.


Author(s):  
Bruce Y Lee ◽  
Sarah M Bartsch ◽  
Michael Y Lin ◽  
Lindsey Asti ◽  
Joel Welling ◽  
...  

Abstract Typically, long-term acute care hospitals (LTACHs) have less experience in and incentives to implementing aggressive infection control for drug-resistant organisms such as carbapenem-resistant Enterobacteriaceae (CRE) than acute care hospitals. Decision makers need to understand how implementing control measures in LTACHs can impact CRE spread regionwide. Using our Chicago metropolitan region agent-based model to simulate CRE spread and control, we estimated that a prevention bundle in only LTACHs decreased prevalence by a relative 4.6%–17.1%, averted 1,090–2,795 new carriers, 273–722 infections and 37–87 deaths over 3 years and saved $30.5–$69.1 million, compared with no CRE control measures. When LTACHs and intensive care units intervened, prevalence decreased by a relative 21.2%. Adding LTACHs averted an additional 1,995 carriers, 513 infections, and 62 deaths, and saved $47.6 million beyond implementation in intensive care units alone. Thus, LTACHs may be more important than other acute care settings for controlling CRE, and regional efforts to control drug-resistant organisms should start with LTACHs as a centerpiece.


2014 ◽  
Vol 35 (4) ◽  
pp. 440-442 ◽  
Author(s):  
Michael Y. Lin ◽  
Karen Lolans ◽  
Donald W. Blom ◽  
Rosie D. Lyles ◽  
Shayna Weiner ◽  
...  

We evaluated the effectiveness of daily chlorhexidine gluconate (CHG) bathing in decreasing skin carriage of Klebsiella pneumoniae carbapenemase–producing Enterobacteriaceae (KPC) among long-term acute care hospital patients. CHG bathing reduced KPC skin colonization, particularly when CHG skin concentrations greater than or equal to 128 μg/mL were achieved.


2016 ◽  
pp. ciw856 ◽  
Author(s):  
Jennifer H. Han ◽  
Ellie J.C. Goldstein ◽  
Jacqueleen Wise ◽  
Warren B. Bilker ◽  
Pam Tolomeo ◽  
...  

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