Entries Tagged as 'Am J Infect Control'
Peripherally inserted central venous catheters in the acute care setting: A safe alternative to high-risk short-term central venous catheters.
Am J Infect Control. 2010 Mar;38(2):149-53
Authors: Al Raiy B, Fakih MG, Bryan-Nomides N, Hopfner D, Riegel E, Nenninger T, Rey J, Szpunar S, Kale P, Khatib R
BACKGROUND: Peripherally inserted central venous catheters (PICCs) serve as an alternative to short-term central venous catheters (CVCs) for providing intravenous (IV) access in the hospital. It is not clear which device has a lower risk of central line-associated bloodstream infection (CLABSI). We compared CVC- and PICC-related CLABSI rates in the setting of an intervention to remove high-risk CVCs. METHODS: We prospectively followed patients with CVCs in the non-intensive care units (ICUs) and those with PICCs hospital-wide. A team evaluated the need for the CVC and the risk of infection, recommended the discontinuation of unnecessary or high-risk CVCs, and suggested PICC insertion for patients requiring prolonged access. Data on age, gender, type of catheter, duration of catheter utilization, and the development of CLABSIs were obtained. RESULTS: A total of 638 CVCs were placed for 4917 catheter-days, during which 12 patients had a CLABSI, for a rate of 2.4 per 1000 catheter-days. A total of 622 PICCs were placed for 5703 catheter-days, during which 13 patients had a CLABSI, for a rate of 2.3 per 1000 catheter-days. The median time to development of infection was significantly longer in the patients with a PICC (23 vs 13 days; P=.03). CONCLUSION: In the presence of active surveillance and intervention to remove unnecessary or high-risk CVCs, CVCs and PICCs had similar rates of CLABSIs. Given their longer time to the development of infection, PICCs may be a safe alternative for prolonged inpatient IV access.
PMID: 19836854 [PubMed - indexed for MEDLINE]
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Inpatient treatment patterns, outcomes, and costs of skin and skin structure infections because of Staphylococcus aureus.
Am J Infect Control. 2010 Feb;38(1):44-9
Authors: Menzin J, Marton JP, Meyers JL, Carson RT, Rothermel CD, Friedman M
BACKGROUND: Staphylococcus aureus (SA) is a common bacterial pathogen in skin and skin structure infections (SSSIs). Limited data exist on hospital treatment patterns and costs for SA-SSSIs. METHODS: This retrospective analysis examined the lengths of stay, treatment patterns, and costs of hospitalized patients with an SA-SSSI diagnosis using a nationally representative inpatient database. Patients were selected if they had an ICD-9-CM diagnosis of an SSSI with SA noted between January 2005 and June 2006, received a study antibiotic (ie, intravenous [IV] vancomycin, IV or oral linezolid, and IV daptomycin), and were not in the intensive care unit before receiving a study antibiotic. Generalized linear models assessed predictors of length of stay and costs. Costs are expressed in 2005 US dollars. RESULTS: Thirteen thousand four hundred thirty-three patients met the selection criteria and mean (+/-SD) age was 48.2 (+/-18.3) years. Forty percent of patients received a nonstudy antibiotic before receiving their first study antibiotic. Ninety-five percent were prescribed vancomycin as their first study antibiotic. Study antibiotics were administered for an average of 4.3 days, and 8% of patients switched study antibiotics. Nineteen percent of patients receiving IV linezolid stepped down to oral linezolid. Mean (+/-SD) lengths of hospital stay and costs were 6.1 (+/-6.0) days and $6830 (+/-$7100). In-hospital mortality, switching antibiotics, and diagnoses of selected complications or comorbidities were associated with increased lengths of stay and costs. Younger age, location outside the Northeast, and use of oral linezolid were associated with lower lengths of stay and costs. CONCLUSION: The costs of treating inpatient SA-SSSIs are substantial and vary by patient demographics and treatment characteristics.
PMID: 19762120 [PubMed - indexed for MEDLINE]
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Association between use of hand hygiene products and rates of health care-associated infections in a large university hospital in Norway.
Am J Infect Control. 2009 May;37(4):311-7
Authors: Herud T, Nilsen RM, Svendheim K, Harthug S
BACKGROUND: An association between use of hand hygiene products and health care-associated infection rates was investigated in a large Norwegian university hospital. METHODS: We conducted an ecologic study by combining data from purchasing and admission systems with data from 32 point prevalence surveys (27,248 patients) in 1998-2005. Data on purchase of hand disinfectants and soap, and patient-days, were collected for 20 bed wards similar to those of the prevalence surveys. RESULTS: The prevalence of infections was 7.1%. We found no significant decline in overall infections (P = .19), but use of hand hygiene products significantly increased from 28.5 L per 1000 patients-days in 1998 to 43.3 L per 1000 patient-days in 2005 (P < .001). After examining a linear dose-response relation between use and infection rates, we observed a borderline significant decline in infections from 8% to 6% with increased use of hand hygiene products (P = .05). This association appeared stronger for wards that were registered with infections >9% at study start in 1998 (P < .001). CONCLUSION: These data suggests that infection rates may be reflected by amount of hand hygiene products used. Quantification of such products over time may serve as an indicator for hand hygiene performance in hospitals.
PMID: 18945514 [PubMed - indexed for MEDLINE]
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National point prevalence of Clostridium difficile in US health care facility inpatients, 2008.
Am J Infect Control. 2009 May;37(4):263-70
Authors: Jarvis WR, Schlosser J, Jarvis AA, Chinn RY
BACKGROUND: Recent published estimates of Clostridium difficile infection (CDI) incidence have been based on small numbers of hospitals or national hospital discharge data. These data suggest that CDI incidence is increasing. METHODS: We conducted a point prevalence survey of C difficile in inpatients at US health care facilities. The survey was developed, received Institutional Review Board approval, and was then distributed to all Association for Professionals in Infection Control and Epidemiology, Inc (APIC) members. They were asked to complete the survey on 1 day between May 7 and August 29, 2008, reporting the number of inpatients with CDI or colonization and facility-specific information. RESULTS: Personnel at 648 hospitals completed the survey; this represents approximately 12.5% of all US acute care facilities. All but 3 states and the District of Columbia were represented (mean, 14 facilities per state; range, 2-43). Eighty-two percent reported that their CDI rate had not decreased in the past 3 years. Respondents reported 1443 C difficile-colonized/infected patients among 110,550 inpatients; the overall C difficile prevalence rate was 13.1 per 1000 inpatients (94.4% infection). Detailed data were provided on 1062 (73.6%) patients. Of these, 55.5% were female, 69.2% were >60 years of age, 67.6% had selected comorbid conditions, 79% had received antimicrobials within 30 days, and 94.4% were detected by enzyme immunoassay. The majority of patients (54.4%) were diagnosed < or =48 hours of hospitalization, but 35% had been admitted to a long-term care facility within 30 days, and 47% had been hospitalized within 90 days; 73% met Centers for Disease Control and Prevention criteria for health care-associated CDI. Most facilities (>90%) used contact isolation for CDI patients. Bleach was used for environmental disinfection more commonly during CDI outbreaks than during nonoutbreak periods. CONCLUSION: Our survey documents a higher C difficile prevalence rate than previous estimates using different methodologies. The majority of inpatient CDI appears to be health care associated. Given that not all patients with diarrhea are tested for CDI and that most facilities use enzyme immunoassays with limited sensitivity to detect C difficile, these are minimum estimates of the US health care facility C difficile burden.
PMID: 19278754 [PubMed - indexed for MEDLINE]
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Bacterial contamination of health care workers’ white coats.
Am J Infect Control. 2009 Mar;37(2):101-5
Authors: Treakle AM, Thom KA, Furuno JP, Strauss SM, Harris AD, Perencevich EN
BACKGROUND: Patient-to-patient transmission of nosocomial pathogens has been linked to transient colonization of health care workers, and studies have suggested that contamination of health care workers’ clothing, including white coats, may be a vector for this transmission. METHODS: We performed a cross-sectional study involving attendees of medical and surgical grand rounds at a large teaching hospital to investigate the prevalence of contamination of white coats with important nosocomial pathogens, such as methicillin-sensitive Stapylococcus aureus, methicillin-resistant S aureus (MRSA), and vancomycin-resistant enterococci (VRE). Each participant completed a brief survey and cultured his or her white coat using a moistened culture swab on lapels, pockets, and cuffs. RESULTS: Among the 149 grand rounds attendees’ white coats, 34 (23%) were contaminated with S aureus, of which 6 (18%) were MRSA. None of the coats was contaminated with VRE. S aureus contamination was more prevalent in residents, those working in inpatient settings, and those who saw an inpatient that day. CONCLUSION: This study suggests that a large proportion of health care workers’ white coats may be contaminated with S aureus, including MRSA. White coats may be an important vector for patient-to-patient transmission of S aureus.
PMID: 18834751 [PubMed - indexed for MEDLINE]
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Acquisition of vancomycin-resistant enterococci in internal medicine wards.
Am J Infect Control. 2009 Mar;37(2):111-6
Authors: Cohen MJ, Adler A, Block C, Gross I, Minster N, Roval V, Tchakirov R, Moses AE, Benenson S
BACKGROUND: Our institution experienced an increase in the frequency of vancomycin-resistant enterococci (VRE) clinical isolates, which rose 5-fold from 2004 to 2005. We sought to measure the prevalence of VRE carriage among medical inpatients in a tertiary hospital in Jerusalem and estimate the rate of acquisition during hospitalization. METHODS: During 2006, we performed 3 cross-sectional surveys, including 1039 patients, representing 3 phases of hospitalization: admission, hospital stay, and discharge. Perianal/stool samples were cultured for VRE. RESULTS: VRE carriage was 3.8% (95% confidence interval [CI] = 1.8% to 6.9%) on admission, 15% (95% CI = 9% to 23%) at discharge, and 32% (95% CI = 24% to 40%) among inpatients. Among inpatient carriers, 60% of the isolates represented a single strain. Recent previous hospitalization was the most significant predictor for identifying carriers on admission. CONCLUSIONS: Our study demonstrates that substantial VRE transmission occurred during hospitalization. Identification of carriers on admission should supplement effective application of infection control methods in attempting to decrease VRE nosocomial spread and burden.
PMID: 18986736 [PubMed - indexed for MEDLINE]
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Investigation of a nosocomial outbreak by alginate-producing pan-antibiotic-resistant Pseudomonas aeruginosa.
Am J Infect Control. 2008 Dec;36(10):e13-8
Authors: Yakupogullari Y, Otlu B, Dogukan M, Gursoy C, Korkmaz E, Kizirgil A, Ozden M, Durmaz R
BACKGROUND: The nosocomial spread of pan-antibiotic-resistant nonfermentative bacteria is an increasing concern. This study investigated the microbiologic and epidemiologic characteristics of a hospital outbreak due to alginate-producing, pan-antibiotic-resistant Pseudomonas aeruginosa (PAR-Pa). METHODS: All patients with infection with a P. aeruginosa strain that was resistant to all Clinic Laboratory Standards Institute-suggested antimicrobial agents between November 2004 and May 2005 were included in the study. Alginate production detection and pulsed-field gel electrophoresis (PFGE) typing were done for the patient and environmental surveillance isolates. A matched case-control study was performed to identify risk factors and evaluate outcomes. RESULTS: PFGE analysis of a total of 35 PAR-Pa isolates (28 patient and 7 environmental surveillance isolates) identified a single epidemic clone as responsible for the outbreak. All epidemic isolates were alginate-producing and susceptible only to colistin. The Student t-test demonstrated that a longer stay in the intensive care unit (ICU) (6.64 days vs 1.83 days; P < .05) significantly increased the risk of PAR-Pa infection. Systemic PAR-Pa infection resulted in higher mortality (85.7% vs 27.8%; P < .05). Multivariate analysis determined that therapeutic failure (odds ratio = 24.7; 95% confidence interval = 4.144 to 147.221; P < .05) was the independent risk factor related to this high mortality. Localized PAR-Pa infections were associated with longer hospital stays (46.2% vs 14.4%; P < .05) and higher rates of surgery (85.7% vs 15.4%; P < .05) and amputation (42.8% vs 0%; P < .05). The recovery of the pathogen from staff hands and frequently handled surfaces suggests possible handborne transmission. Improved hygienic standards and application of strict contact precautions, including isolation, reduced the spread of the pathogen. CONCLUSION: This study illustrates the ability of pan-antibiotic-resistant P. aeruginosa to cause an outbreak with significant mortality and stresses the need for precautions to prevent the spread of such highly resistant strains.
PMID: 19084158 [PubMed - indexed for MEDLINE]
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Three successful interventions in health care workers that improve compliance with hand hygiene: is sustained replication possible?
Am J Infect Control. 2008 Jun;36(5):349-55
Authors: Whitby M, McLaws ML, Slater K, Tong E, Johnson B
BACKGROUND: Hand hygiene (HH) compliance by health care workers has been universally disappointing. Two major programs (Washington and Geneva) have demonstrated interventions that induce sustained improvement. The introduction of alcohol-based hand rub (AHR) together with education also has been reported to improve compliance. METHODS: These interventions were replicated concurrently for 2 years in selected wards of an 800-bed university teaching hospital, with compliance assessed only within, not between, programs. RESULTS: No significant improvement in HH compliance was observed after the introduction of AHR (incidence rate ratio [IRR] = 1.11; 95% confidence interval [CI] = 0.93 to 1.33; P = .238) or substitution of AHR for a similar product (IRR = 1.10; 95% CI = 0.91 to 1.32; P = .328) with concomitant education. The Washington program achieved a 48% (IRR = 1.48, 95% CI = 1.20 to 1.81; P < .001) improvement in compliance, sustained over 2 years. The Geneva program failed to induce a significant increase in HH compliance in 3 wards, but achieved a 56% (IRR = 1.56; 95% CI = 1.29 to 1.89; P < .001) improvement over the already high HH rate in 1 ward (infectious disease unit). CONCLUSIONS: The Washington program demonstrated effectiveness in achieving sustained improved HH compliance, whereas the effect of the Geneva program was limited in those wards without strong medical leadership. Introduction of AHR without an associated behavioral modification program proved ineffective.
PMID: 18538701 [PubMed - indexed for MEDLINE]
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Risk factors and mortality in patients with nosocomial Staphylococcus aureus bacteremia.
Am J Infect Control. 2008 Mar;36(2):118-22
Authors: Wang FD, Chen YY, Chen TL, Liu CY
BACKGROUND: Infections due to methicillin-resistant Staphylococcus aureus have become increasingly common in hospitals worldwide. S aureus continues to be a cause of nosocomial bacteremia. METHODS: We analyzed the clinical significance (mortality) of MRSA and methicillin-susceptible S aureus bacteremia in a retrospective cohort study in a 2900-bed tertiary referral medical center. Survival and logistic regression analyses were used to determine the risk factors and prognostic factors of mortality. RESULTS: During the 15-year period, 1148 patients were diagnosed with nosocomial S aureus bacteremia. After controlling potential risk factors for MRSA bacteremia on logistic regression analysis, service, admission days prior to bacteremia, age, mechanical ventilator, and central venous catheter (CVC) were independent risk factors for MRSA. The crude mortality rate of S aureus bacteremia was 44.1%. The difference between the mortality rates of MRSA (49.8%) and MSSA bacteremia (27.6%) was 22.2% (P < .001). Upon logistic regression analysis, the mortality with MRSA bacteremia was revealed to be 1.78 times higher than MSSA (P < .001). The other predicted prognostic factors included age, neoplasms, duration of hospital stay after bacteremia, presence of mechanical ventilator, and use of CVC. CONCLUSIONS: Resistance to methicillin was an important independent prognostic factor for patients with S aureus bacteremia.
PMID: 18313513 [PubMed - indexed for MEDLINE]
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