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Tang YW, Hon PY, Tan J, Poh BF, Ang B, Chow A. Octenidine exposure was not associated with reduced octenidine susceptibility of meticillin-resistant Staphylococcus aureus in an extended-care facility in Singapore. J Hosp Infect 2024; 149:104-107. [PMID: 38670494 DOI: 10.1016/j.jhin.2024.02.030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2023] [Revised: 02/21/2024] [Accepted: 02/22/2024] [Indexed: 04/28/2024]
Abstract
OBJECTIVES Antiseptics such as chlorhexidine gluconate (CHG) and octenidine dihydrochloride (OCT) are frequently used in hospitals to prevent and control the transmission of meticillin-resistant Staphylococcus aureus (MRSA). Given the increasing prevalence of reduced CHG susceptibility of MRSA, there are concerns about the possibility of reduced OCT susceptibility. This study evaluated the prevalence of reduced CHG and OCT susceptibility over 3 years, and assessed the association between OCT exposure and reduced OCT susceptibility in MRSA. METHODS MRSA isolates from inpatients who acquired MRSA in an extended-care facility between 2019 and 2021 were included in antiseptic susceptibility testing. Inpatients were exposed to universal daily CHG bathing from January to September 2019, and universal daily OCT bathing after October 2019. The minimum inhibitory concentrations (MICs) of CHG and OCT were determined using the broth microdilution method. Multi-variable logistic regression was used to assess if OCT exposure was independently associated with reduced OCT susceptibility. RESULTS Of 186 isolates, 179 (96%) had reduced CHG susceptibility (MIC ≥4 mg/L) and 46 (25%) had reduced OCT susceptibility (MIC ≥2 mg/L). Reduced OCT susceptibility rates were 26.9%, 13.8% and 14.3% in 2019, 2020 and 2021, respectively. Reduced CHG susceptibility rates were 95.4%, 100% and 95.9% in 2019, 2020 and 2021, respectively. OCT exposure was not associated with reduced OCT susceptibility (adjusted odds ratio 0.23, 95% confidence interval 0.08-0.75; P=0.014), after adjusting for age, gender, race, year of sample collection, days at risk in facility, hospitalization in preceding year, and MRSA colonization/infection in preceding year. CONCLUSION The prevalence of reduced OCT susceptibility has remained low, despite universal OCT bathing for extended inpatient care. However, the rate of reduced CHG susceptibility was high. OCT exposure was not associated with reduced OCT susceptibility in MRSA.
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Affiliation(s)
- Y W Tang
- Department of Preventive and Population Medicine, Office of Clinical Epidemiology, Analytics and Knowledge, Tan Tock Seng Hospital, Singapore, Singapore
| | - P Y Hon
- Infectious Disease Research Laboratory, National Centre for Infectious Diseases, Singapore, Singapore
| | - J Tan
- Department of Infection Prevention and Control, Tan Tock Seng Hospital, Singapore, Singapore
| | - B F Poh
- Department of Infection Prevention and Control, Tan Tock Seng Hospital, Singapore, Singapore
| | - B Ang
- Department of Infection Prevention and Control, Tan Tock Seng Hospital, Singapore, Singapore; Department of Infectious Diseases, Tan Tock Seng Hospital, Singapore, Singapore
| | - A Chow
- Department of Preventive and Population Medicine, Office of Clinical Epidemiology, Analytics and Knowledge, Tan Tock Seng Hospital, Singapore, Singapore; Respiratory and Infectious Disease Programme, Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore, Singapore; Infectious Disease Research and Training Office, National Centre for Infectious Diseases, Singapore, Singapore; Saw Swee Hock School of Public Health, National University of Singapore, Singapore, Singapore.
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2
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Salle R, Del Giudice P, Skayem C, Hua C, Chosidow O. Secondary Bacterial Infections in Patients with Atopic Dermatitis or Other Common Dermatoses. Am J Clin Dermatol 2024; 25:623-637. [PMID: 38578398 DOI: 10.1007/s40257-024-00856-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/11/2024] [Indexed: 04/06/2024]
Abstract
Secondary bacterial infections of common dermatoses such as atopic dermatitis, ectoparasitosis, and varicella zoster virus infections are frequent, with Staphylococcus aureus and Streptococcus pyogenes being the bacteria most involved. There are also Gram-negative infections secondary to common dermatoses such as foot dyshidrotic eczema and tinea pedis. Factors favoring secondary bacterial infections in atopic dermatitis, ectoparasitosis, and varicella zoster virus infections mainly include an epidermal barrier alteration as well as itch. Mite-bacteria interaction is also involved in scabies and some environmental factors can promote Gram-negative bacterial infections of the feet. Furthermore, the bacterial ecology of these superinfections may depend on the geographical origin of the patients, especially in ectoparasitosis. Bacterial superinfections can also have different clinical aspects depending on the underlying dermatoses. Subsequently, the choice of class, course, and duration of antibiotic treatment depends on the severity of the infection and the suspected bacteria, primarily targeting S. aureus. Prevention of these secondary bacterial infections depends first and foremost on the management of the underlying skin disorder. At the same time, educating the patient on maintaining good skin hygiene and reporting changes in the primary lesions is crucial. In the case of recurrent secondary infections, decolonization of S. aureus is deemed necessary, particularly in atopic dermatitis.
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Affiliation(s)
- Romain Salle
- Service de Dermatologie Générale et Oncologique, UVSQ, EA4340-BECCOH, AP-HP, Hôpital Ambroise-Paré, Université Paris-Saclay, 9 Avenue Charles de Gaulle, 92100, Boulogne-Billancourt, France.
| | - Pascal Del Giudice
- Unité D'Infectiologie et Dermatologie, Centre Hospitalier Intercommunal de Fréjus-Saint-Raphaël, Fréjus, France
| | - Charbel Skayem
- Service de Dermatologie Générale et Oncologique, UVSQ, EA4340-BECCOH, AP-HP, Hôpital Ambroise-Paré, Université Paris-Saclay, 9 Avenue Charles de Gaulle, 92100, Boulogne-Billancourt, France
| | - Camille Hua
- AP-HP, Service de Dermatologie, Hôpital Henri Mondor, Créteil, France
| | - Olivier Chosidow
- Consultation Dermatoses Faciales, Service d'ORL, AP-HP, Hôpital Universitaire Pitié-Salpêtrière, Paris, France
- UPEC Créteil, Créteil, France
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Popovich KJ, Aureden K, Ham DC, Harris AD, Hessels AJ, Huang SS, Maragakis LL, Milstone AM, Moody J, Yokoe D, Calfee DP. SHEA/IDSA/APIC Practice Recommendation: Strategies to prevent methicillin-resistant Staphylococcus aureus transmission and infection in acute-care hospitals: 2022 Update. Infect Control Hosp Epidemiol 2023; 44:1039-1067. [PMID: 37381690 PMCID: PMC10369222 DOI: 10.1017/ice.2023.102] [Citation(s) in RCA: 22] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2023] [Accepted: 05/03/2023] [Indexed: 06/29/2023]
Abstract
Previously published guidelines have provided comprehensive recommendations for detecting and preventing healthcare-associated infections (HAIs). The intent of this document is to highlight practical recommendations in a concise format designed to assist acute-care hospitals in implementing and prioritizing efforts to prevent methicillin-resistant Staphylococcus aureus (MRSA) transmission and infection. This document updates the "Strategies to Prevent Methicillin-Resistant Staphylococcus aureus Transmission and Infection in Acute Care Hospitals" published in 2014.1 This expert guidance document is sponsored by the Society for Healthcare Epidemiology of America (SHEA). It is the product of a collaborative effort led by SHEA, the Infectious Diseases Society of America (IDSA), the Association for Professionals in Infection Control and Epidemiology (APIC), the American Hospital Association (AHA), and The Joint Commission, with major contributions from representatives of a number of organizations and societies with content expertise.
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Affiliation(s)
- Kyle J. Popovich
- Department of Internal Medicine, RUSH Medical College, Chicago, Illinois
| | - Kathy Aureden
- Infection Prevention, Advocate Aurora Health, Downers Grove, Illinois
| | - D. Cal Ham
- Centers for Disease Control and Prevention, Atlanta, Georgia
| | - Anthony D. Harris
- Health Care Outcomes Research, University of Maryland School of Medicine, Baltimore, Maryland
| | - Amanda J. Hessels
- Columbia School of Nursing, New York, New York
- Hackensack Meridian Health, Edison, New Jersey
| | - Susan S. Huang
- Division of Infectious Diseases, University of California Irvine School of Medicine, Irvine, California
| | - Lisa L. Maragakis
- Johns Hopkins University School of Medicine, The Johns Hopkins Hospital, Baltimore, Maryland
| | - Aaron M. Milstone
- Division of Pediatric Infectious Diseases, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Julia Moody
- Infection Prevention, HCA Healthcare, Nashville, Tennessee
| | - Deborah Yokoe
- Department of Medicine, University of California San Francisco School of Medicine, San Francisco, California
- Transplant Infectious Diseases, UCSF Medical Center, San Francisco, California
| | - David P. Calfee
- Department of Medicine, Weill Cornell Medicine, New York, New York
- Department of Population Health Sciences, Weill Cornell Medicine, New York, New York
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Köck R, Denkel L, Feßler AT, Eicker R, Mellmann A, Schwarz S, Geffers C, Hübner NO, Leistner R. Clinical Evidence for the Use of Octenidine Dihydrochloride to Prevent Healthcare-Associated Infections and Decrease Staphylococcus aureus Carriage or Transmission-A Review. Pathogens 2023; 12:pathogens12040612. [PMID: 37111498 PMCID: PMC10145019 DOI: 10.3390/pathogens12040612] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2023] [Revised: 03/31/2023] [Accepted: 04/13/2023] [Indexed: 04/29/2023] Open
Abstract
BACKGROUND The antiseptic agent octenidine dihydrochloride (OCT) is used for skin preparation, for Staphylococcus aureus decolonization, and within bundles for the prevention of catheter-related or surgical site infections (SSIs). Here, we review the evidence for the effects of OCT from clinical studies. METHODS Review of studies published in the Medline, Scopus, and Cochrane databases until August 2022, performed in clinical settings and reporting on effects of OCT on S. aureus carriage/transmission, SSI prevention, and prevention of intensive care unit (ICU)-related or catheter-related bloodstream and insertion site infections. RESULTS We included 31 articles. The success of S. aureus decolonization with OCT-containing therapies ranged between 6 and 87%. Single studies demonstrated that OCT application led to a reduction in S. aureus infections, acquisition, and carriage. No study compared OCT for skin preparation before surgical interventions to other antiseptics. Weak evidence for the use of OCT for pre-operative washing was found in orthopedic and cardiac surgery, if combined with other topical measures. Mostly, studies did not demonstrate that daily OCT bathing reduced ICU-/catheter-related bloodstream infections with one exception. CONCLUSIONS There is a need to perform studies assessing the clinical use of OCT compared with other antiseptics with respect to its effectiveness to prevent nosocomial infections.
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Affiliation(s)
- Robin Köck
- Institute of Hygiene, University Hospital Münster, 48149 Münster, Germany
- Hygiene and Environmental Medicine, University Hospital Essen, 45147 Essen, Germany
| | - Luisa Denkel
- Institute of Hygiene and Environmental Medicine, Charité-Universitätsmedizin Berlin, 12203 Berlin, Germany
| | - Andrea T Feßler
- Institute of Microbiology and Epizoonotics, Freie Universität Berlin, 14163 Berlin, Germany
- Veterinary Centre for Resistance Research (TZR), Freie Universität Berlin, 14163 Berlin, Germany
| | - Rudolf Eicker
- Hygiene and Environmental Medicine, University Hospital Essen, 45147 Essen, Germany
| | - Alexander Mellmann
- Institute of Hygiene, University Hospital Münster, 48149 Münster, Germany
| | - Stefan Schwarz
- Institute of Microbiology and Epizoonotics, Freie Universität Berlin, 14163 Berlin, Germany
| | - Christine Geffers
- Institute of Hygiene and Environmental Medicine, Charité-Universitätsmedizin Berlin, 12203 Berlin, Germany
| | - Nils-Olaf Hübner
- Institute for Hygiene and Environmental Medicine, University Medicine Greifswald, 17489 Greifswald, Germany
| | - Rasmus Leistner
- Institute of Hygiene and Environmental Medicine, Charité-Universitätsmedizin Berlin, 12203 Berlin, Germany
- Division Gastroenterology, Infectious Diseases and Rheumatology, Medical Department, Charité Universitätsmedizin Berlin, 12200 Berlin, Germany
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5
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Infective Endocarditis in High-Income Countries. Metabolites 2022; 12:metabo12080682. [PMID: 35893249 PMCID: PMC9329978 DOI: 10.3390/metabo12080682] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2022] [Revised: 07/19/2022] [Accepted: 07/21/2022] [Indexed: 01/27/2023] Open
Abstract
Infective endocarditis remains an illness that carries a significant burden to healthcare resources. In recent times, there has been a shift from Streptococcus sp. to Staphylococcus sp. as the primary organism of interest. This has significant consequences, given the virulence of Staphylococcus and its propensity to form a biofilm, rendering non-surgical therapy ineffective. In addition, antibiotic resistance has affected treatment of this organism. The cohorts at most risk for Staphylococcal endocarditis are elderly patients with multiple comorbidities. The innovation of transcatheter technologies alongside other cardiac interventions such as implantable devices has contributed to the increased risk attributable to this cohort. We examined the pathophysiology of infective endocarditis carefully. Inter alia, the determinants of Staphylococcus aureus virulence, interaction with host immunity, as well as the discovery and emergence of a potential vaccine, were investigated. Furthermore, the potential role of prophylactic antibiotics during dental procedures was also evaluated. As rates of transcatheter device implantation increase, endocarditis is expected to increase, especially in this high-risk group. A high level of suspicion is needed alongside early initiation of therapy and referral to the heart team to improve outcomes.
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Coia JE, Wilson JA, Bak A, Marsden GL, Shimonovich M, Loveday HP, Humphreys H, Wigglesworth N, Demirjian A, Brooks J, Butcher L, Price JR, Ritchie L, Newsholme W, Enoch DA, Bostock J, Cann M, Wilson APR. Joint Healthcare Infection Society (HIS) and Infection Prevention Society (IPS) guidelines for the prevention and control of meticillin-resistant Staphylococcus aureus (MRSA) in healthcare facilities. J Hosp Infect 2021; 118S:S1-S39. [PMID: 34757174 DOI: 10.1016/j.jhin.2021.09.022] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2021] [Revised: 09/03/2021] [Accepted: 09/13/2021] [Indexed: 12/28/2022]
Affiliation(s)
- J E Coia
- Department of Clinical Microbiology, Hospital South West Jutland, Esbjerg, Denmark; Department of Regional Health Research IRS, University of Southern Denmark, Denmark; Healthcare Infection Society, London, UK
| | - J A Wilson
- Richard Wells Research Centre, University of West London, London, UK; Infection Prevention Society, Seafield, UK
| | - A Bak
- Healthcare Infection Society, London, UK.
| | | | - M Shimonovich
- Healthcare Infection Society, London, UK; MRC/CSO Social and Public Health Sciences Unit, University of Glasgow, Glasgow, UK
| | - H P Loveday
- Richard Wells Research Centre, University of West London, London, UK; Infection Prevention Society, Seafield, UK
| | - H Humphreys
- Healthcare Infection Society, London, UK; Department of Clinical Microbiology, The Royal College of Surgeons, Ireland; Department of Microbiology, Beaumont Hospital, Dublin, Ireland
| | - N Wigglesworth
- Infection Prevention Society, Seafield, UK; East Kent Hospitals University, NHS Foundation Trust, Canterbury, UK
| | - A Demirjian
- Healthcare-associated Infection and Antimicrobial Resistance, Public Health England, London, UK; Paediatric Infectious Diseases and Immunology, Evelina London Children's Hospital, London, UK; Faculty of Life Sciences and Medicine, King's College London, London, UK
| | - J Brooks
- Infection Prevention Society, Seafield, UK; University Hospital Southampton NHS Foundation Trust, UK
| | - L Butcher
- Infection Prevention Society, Seafield, UK; Oxford University Hospitals NHS Foundation Trust, UK
| | - J R Price
- Healthcare Infection Society, London, UK; Imperial College Healthcare NHS Trust, London, UK
| | - L Ritchie
- Healthcare Infection Society, London, UK; NHS England and NHS Improvement, London, UK
| | - W Newsholme
- Healthcare Infection Society, London, UK; Guy's and St Thomas' NHS Foundation Trust, UK
| | - D A Enoch
- Healthcare Infection Society, London, UK; Clinical Microbiology & Public Health Laboratory, Public Health England, Addenbrooke's Hospital, Cambridge, UK
| | | | - M Cann
- Lay Member, UK; MRSA Action UK, Preston, UK
| | - A P R Wilson
- Healthcare Infection Society, London, UK; University College London Hospitals NHS Foundation Trust, UK.
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7
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Intranasal octenidine for methicillin-resistant Staphylococcus aureus (MRSA) carriers and universal octenidine bathing reduced MRSA acquisition in an acute-care general ward. Infect Control Hosp Epidemiol 2021; 43:1701-1704. [PMID: 34266515 DOI: 10.1017/ice.2021.300] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
In this quasi-experimental before-and-after study in a methicillin-resistant staphylococcus aureus (MRSA) high-prevalence acute-care dermatology ward from August 2016 to November 2018, patients admitted during intervention period who received additional topical intranasal octenidine were 63% less likely to acquire MRSA than those receiving universal daily octenidine bathing alone during baseline period (aOR, 0.37; 95% CI, 0.14-0.98).
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8
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Huang J, Fan Q, Guo M, Wu M, Wu S, Shen S, Wang X, Wang H. Octenidine dihydrochloride treatment of a meticillin-resistant Staphylococcus aureus biofilm-infected mouse wound. J Wound Care 2021; 30:106-114. [PMID: 33573482 DOI: 10.12968/jowc.2021.30.2.106] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
OBJECTIVE This study sought to estimate the effect of a liquid octenidine dihydrochloride (OCT)-impregnated gauze dressing in the treatment of meticillin-resistant Staphylococcus aureus (MRSA) biofilm-infected wounds. METHOD In this animal study, a six-millimetre punch full-thickness wound on each mouse back was inoculated with MRSA suspension, and then covered with a Tegaderm (3M Health Care, US) dressing for an established biofilm model. Animals were divided into three groups for topical application: control group (treated with phosphate-buffered saline, PBS); mupirocin group (treated with 2% mupirocin); and OCT group (treated with OCT). All applications were administrated once 24 hours post-wounding. The bioburden was determined by counting colony-forming units (cfus) and the biofilm architecture was viewed using fluorescent staining and scanning electron microscopy (SEM) on day two. The tissue repair was evaluated histologically and the related genes were detected by reverse transcription quantitative polymerase chain reaction (RT-qPCR) on day 15. RESULTS The results suggested OCT accelerated healing and reduced by >3.6 log cfu/g bacterial counts on the wounds relative to the PBS-treated control (p<0.05). Histological analysis showed OCT-treated tissue exhibited lower burden of the inflammatory cells, more mature collagen fibres and well-defined epithelialisation. LIVE/DEAD fluorescent staining and SEM confirmed OCT induced a substantial destruction to biofilm structure. RT-qPCR further demonstrated that OCT therapy could inhibit the expression of MRSA and its biofilm genes by nearly 100% (p<0.05). CONCLUSION This investigation provides a rare in vivo experimental basis for OCT improvement on MRSA-infected wound healing and the superior efficacy implies OCT topical application may represent an ideal choice to address established bacterial biofilm in hard-to-heal wounds.
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Affiliation(s)
- Jianhua Huang
- Department of Dermatology, Huadong Hospital, Fudan University, Shanghai 200040, PR China
| | - Qing Fan
- Department of Dermatology, Shanghai Fengxian District Hospital, Shanghai (201499), PR China
| | - Mingquan Guo
- Shanghai Institute of Bacteriophage and Drug Resistance, Shanghai Public Health Clinical Center, Fudan University, Shanghai 201514, PR China
| | - Minfeng Wu
- Department of Dermatology, Huadong Hospital, Fudan University, Shanghai 200040, PR China
| | - Shutian Wu
- Department of Dermatology, Huadong Hospital, Fudan University, Shanghai 200040, PR China
| | - Shuzhan Shen
- Shanghai Skin Disease Hospital, Institute of Photomedicine, Tongji University School of Medicine, Shanghai, PR China
| | - Xiuli Wang
- Shanghai Skin Disease Hospital, Institute of Photomedicine, Tongji University School of Medicine, Shanghai, PR China
| | - Hongwei Wang
- Shanghai Skin Disease Hospital, Institute of Photomedicine, Tongji University School of Medicine, Shanghai, PR China
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Chow A, Htun HL, Hon PY, Ang B, Kanagasabai K, Koh J, Holden MTG, Hsu LY. Comparative epidemiology and factors associated with major healthcare-associated methicillin-resistant Staphylococcus aureus clones among interconnected acute-, intermediate- and long-term healthcare facilities in Singapore. Clin Microbiol Infect 2020; 27:S1198-743X(20)30442-0. [PMID: 32738480 DOI: 10.1016/j.cmi.2020.07.034] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2020] [Revised: 06/30/2020] [Accepted: 07/23/2020] [Indexed: 10/23/2022]
Abstract
OBJECTIVES Methicillin-resistant Staphylococcus aureus (MRSA) has spread across countries and healthcare settings, with different clones occupying different ecological niches. It is crucial to understand the comparative epidemiology of MRSA clones between healthcare settings and independent factors associated with colonization of specific clones. METHODS We conducted annual cross-sectional surveillance studies in a network comprising an acute-care hospital and six closely-affiliated intermediate- and long-term care facilities in Singapore between June and July, 2014-2016; 5394 patients contributed 16 045 nasal, axillary and groin samples for culture and MRSA isolates for whole-genome sequencing. Multivariable multilevel multinomial regression models were constructed to assess independent factors associated with MRSA colonization. RESULTS MRSA clonal complex (CC) 22 was more prevalent in the acute-care hospital (n = 256/493; 51.9%) and intermediate-care facilities (n = 348/634; 54.9%) than in long-term care (n = 88/351; 25.1%) facilities, with clones other than CC22 and CC45 being more prevalent in long-term care facilities (n = 144/351; 41.0%) (p < 0.001). Groin colonization with CC45 was six times that of nasal colonization (aOR 6.21, 95%CI 4.26-9.01). Prior MRSA carriage was associated with increased odds of current MRSA colonization in all settings, with a stronger association with CC22 (aOR 6.45, 95%CI 3.85-10.87) than CC45 (aOR 4.15, 95%CI 2.26-7.58). CONCLUSIONS Colonization by MRSA clones differed between anatomical sites and across healthcare settings. With CC22 having a predilection for the nares and CC45 the groin, MRSA screening should include both sites. Prior MRSA carriage is a risk factor for colonization with predominant MRSA clones in the acute-care hospital and intermediate- and long-term care facilities. Contact precautions for prior MRSA carriers on admission to any healthcare facility could prevent intra- and inter-institutional MRSA transmission.
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Affiliation(s)
- Angela Chow
- Department of Clinical Epidemiology, Office of Clinical Epidemiology, Analytics, and Knowledge, Tan Tock Seng Hospital, Singapore; Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore; Saw Swee Hock School of Public Health, National University of Singapore, Singapore.
| | - Htet Lin Htun
- Department of Clinical Epidemiology, Office of Clinical Epidemiology, Analytics, and Knowledge, Tan Tock Seng Hospital, Singapore
| | - Pei-Yun Hon
- Infectious Disease Research Laboratory, National Centre for Infectious Diseases, Singapore
| | - Brenda Ang
- Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore; Department of Infectious Diseases, Tan Tock Seng Hospital, Singapore; Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | | | - Jocelyn Koh
- Ang Mo Kio-Thye Hua Kuan Hospital, Singapore
| | | | - Li-Yang Hsu
- Saw Swee Hock School of Public Health, National University of Singapore, Singapore
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10
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Zheng S, Chung SJ, Sim HCJ, Chlebicka TM, Chan YH, Lim TP, Kwa LHA, Chlebicki MP. Impact of formulary interventions on the minimum inhibitory concentration of methicillin-resistant Staphylococcus aureus to mupirocin, chlorhexidine, and octenidine in a Singapore tertiary institution. Eur J Clin Microbiol Infect Dis 2020; 39:2397-2403. [PMID: 32712737 DOI: 10.1007/s10096-020-03995-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2020] [Accepted: 07/21/2020] [Indexed: 11/26/2022]
Abstract
Methicillin-resistant Staphylococcus aureus (MRSA) decolonization is an effective measure to prevent clinical infection but resistance is a concern. We aim to evaluate the impact of mupirocin (MUP) ointment formulary removal, plateauing use of chlorhexidine gluconate (CHG), and hospital-wide introduction of octenidine (OCT)-based products on the minimum inhibitory concentration (MIC) of MRSA to MUP, CHG, and OCT in our hospital. A prevalence study was conducted at three time points (TP) on consecutive MRSA screening isolates to evaluate for their MICs to MUP, CHG, and OCT using broth microdilution sensititre plates and detection of the ileS-2 gene encoding high-level MUP resistance in 2013 (pre-intervention TP1; n = 160), 2016 (early post-intervention TP2; n = 99) and 2017 (late post-intervention TP3; n = 76). Statistical analyses were performed using Chi square test with reference from TP1. There was a significant improvement in MUP susceptibility (MIC < 4 mcg/ml) from 71.9% (TP1) to 86.9% (TP2; p = 0.006) to 88.2% (TP3; p = 0.007). The prevalence of MUP high-level resistance (MIC > 256 mcg/ml) reduced from 25.0% (TP1) to 12.1% (TP2; p = 0.014) to 5.3% (TP3; p = 0.001). Likewise, the prevalence of isolates harboring the ileS-2 gene decreased from 28.1% (TP1) to 18.2% (TP2; p = 0.072) to 9.2% (TP3; p = 0.002). OCT MIC range remains stable at 0.5 to 1 mcg/ml across all three TPs. The proportion of isolates with reduced CHG susceptibility (MIC ≥ 4 mcg/ml) increased over the three TPs from 23.1 to 27.2% (p = 0.45) to 42.1% (p = 0.003). Active formulary regulations have an impact on the resistance profile of MRSA and can be used as a strategy to preserve the MRSA decolonization armamentarium.
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Affiliation(s)
- Shuwei Zheng
- Department of General Medicine, Sengkang General Hospital, Singapore, Singapore.
| | - S J Chung
- Department of Infectious Diseases, Singapore General Hospital, Singapore, Singapore
| | - H C J Sim
- Department of Microbiology, Singapore General Hospital, Singapore, Singapore
| | - T M Chlebicka
- University of New South Wales, Medicine, Sydney, Australia
| | - Y H Chan
- Biostatistics Unit, National University of Singapore, Singapore, Singapore
| | - T P Lim
- Department of Pharmacy, Singapore General Hospital, Singapore, Singapore
| | - L H A Kwa
- Department of Pharmacy, Singapore General Hospital, Singapore, Singapore
| | - M P Chlebicki
- Department of Infectious Diseases, Singapore General Hospital, Singapore, Singapore
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11
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Chow A, Wong J, Zhang W, Poh BF, Ang B. Intranasal octenidine and universal chlorhexidine bathing can reduce meticillin-resistant Staphylococcus aureus acquisition in an extended care facility in Singapore. J Hosp Infect 2020; 105:628-631. [PMID: 32353389 DOI: 10.1016/j.jhin.2020.04.030] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2020] [Accepted: 04/21/2020] [Indexed: 12/15/2022]
Abstract
Meticillin-resistant Staphylococcus aureus (MRSA) is prevalent in extended care facilities. We conducted a quasi-experimental before-after study in a 100-bed rehabilitation hospital, from January 2013 to June 2019. Universal chlorhexidine bathing was implemented throughout the period, with intranasal octenidine for MRSA colonizers added from September 2017. Interrupted time-series with segmented regression analysis revealed that after adjusting for at-admission MRSA colonization and hand hygiene compliance, a constant trend was observed pre implementation of intranasal octenidine (adjusted mean coefficient: 0.012; 95% confidence interval: -0.037 to 0.06), with an immediate decrease with implementation (-2.145; -0.248 to -0.002; P = 0.033), followed by a significant reduction in MRSA acquisition post implementation (-0.125; -0.248 to -0.002; P = 0.047).
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Affiliation(s)
- A Chow
- Department of Clinical Epidemiology, Office of Clinical Epidemiology, Analytics, and Knowledge, Tan Tock Seng Hospital, Singapore; Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore; Saw Swee Hock School of Public Health, National University of Singapore, Singapore.
| | - J Wong
- Department of Clinical Epidemiology, Office of Clinical Epidemiology, Analytics, and Knowledge, Tan Tock Seng Hospital, Singapore
| | - W Zhang
- Department of Infection Prevention and Control, Tan Tock Seng Hospital, Singapore
| | - B-F Poh
- Department of Infection Prevention and Control, Tan Tock Seng Hospital, Singapore
| | - B Ang
- Department of Infectious Diseases, Tan Tock Seng Hospital, Singapore; Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
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Slyne H, Clews N, Beech S, Smilie E. Protecting patients from infection: Improving topical prophylaxis compliance on surgical wards. J Infect Prev 2019; 21:47-51. [PMID: 33425016 DOI: 10.1177/1757177419885011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2019] [Accepted: 10/04/2019] [Indexed: 11/17/2022] Open
Abstract
Background At a medium-sized district general hospital in the heart of England, it was identified that compliance to the administration of topical prophylaxis on three general surgery wards had reduced to 23%, following implementation of an electronic medication prescription record. Therefore, a quality improvement project was commenced to improve this compliance to protect patients from meticillin-resistant Staphylococcus aureus (MRSA) colonisation and associated bacteraemia. Aim To improve compliance of topical prophylaxis administration on three surgical wards to protect patients from infection. Method Quality improvement plan - do - study - act (PDSA) cycles evaluated the effectiveness of four different strategies from baseline data which was 23% compliant in December 2016. These included teaching and communication strategies, prompts in medical notes, discontinuation of Mupirocin 2% nasal ointment as part of the topical prophylaxis regime and discontinuation of the topical wash lotion from requiring a prescription. Results The compliance of prophylaxis administration increased consistently throughout from 23% in December 2016 to 92% in March 2018. Consequently, the number of patients that developed a MRSA colonisation on the three wards reduced by 54%, from 13 in the 12 months before the study to six in the 12 months after the study. Discussion This study led to a change in the Trust MRSA Policy to better protect patients from infection, particularly surgical site infection and MRSA bacteraemia. It suggests that quality improvement methodology has a place in infection prevention practice.
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Affiliation(s)
- Holly Slyne
- Infection Prevention & Control Team, Northampton General Hospital NHS Trust, Northampton, UK
| | - Natalie Clews
- Infection Prevention & Control Team, Northampton General Hospital NHS Trust, Northampton, UK
| | - Sid Beech
- Quality Improvement Team, Northampton General Hospital NHS Trust, Northampton, Northamptonshire, UK
| | - Elizabeth Smilie
- Quality Improvement Team, Northampton General Hospital NHS Trust, Northampton, Northamptonshire, UK
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Htun HL, Hon PY, Holden MTG, Ang B, Chow A. Chlorhexidine and octenidine use, carriage of qac genes, and reduced antiseptic susceptibility in methicillin-resistant Staphylococcus aureus isolates from a healthcare network. Clin Microbiol Infect 2019; 25:1154.e1-1154.e7. [PMID: 30625411 DOI: 10.1016/j.cmi.2018.12.036] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2018] [Revised: 12/17/2018] [Accepted: 12/25/2018] [Indexed: 10/27/2022]
Abstract
OBJECTIVES With the widespread use of antiseptics in healthcare facilities for the prevention of methicillin-resistant Staphylococcus aureus (MRSA) transmission, there are concerns for antiseptic tolerance and resistance. We sought to understand the use of chlorhexidine and octenidine, carriage of qac genes, and reduced antiseptic susceptibilities. METHODS A serial cross-sectional study was conducted in an acute care hospital and three extended-care facilities of a healthcare network in June-July, 2014-2016. Two of the extended-care facilities were exposed to intranasal octenidine and universal daily chlorhexidine/octenidine bathing. The minimum inhibitory concentration (MIC) levels and qac genes were determined by broth microdilution tests and whole genome sequencing respectively. Multivariable logistic regression was used to assess for the independent associations between antiseptic exposures, qac genes, and reduced antiseptic susceptibilities. RESULTS A total of 878 MRSA isolates were obtained. There were associations between qacA/B carriage and chlorhexidine (adjusted odds ratio (aOR) 7.80; 95% confidence interval (CI) 3.25-18.71) and octenidine (aOR 11.79; 95% CI 5.14-27.04) exposures. Chlorhexidine exposure was associated with reduced chlorhexidine susceptibility (MIC ≥4 mg/L) (aOR 3.15; 95% CI 1.14-8.74). Carriage of qacA/B (aOR 10.65; 95% CI 4.14-27.40) or qacC (aOR 2.55; 95% CI 1.22-5.32) had an association with reduced chlorhexidine susceptibility; while MRSA sequence type modified the association. However, we found no direct association between (i) antiseptics use and qacC carriage, (ii) octenidine exposure and reduced susceptibility, and (iii) reduced octenidine susceptibility and qacA/B or qacC carriage. CONCLUSIONS Antiseptic exposures were associated with carriage of qac genes. Chlorhexidine exposure was associated with reduced chlorhexidine susceptibility, requiring continued surveillance for the emergence of resistance.
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Affiliation(s)
- H L Htun
- Department of Clinical Epidemiology, Office of Clinical Epidemiology, Analytics, and Knowledge (OCEAN), Tan Tock Seng Hospital, Singapore, Singapore
| | - P Y Hon
- Department of Clinical Epidemiology, Office of Clinical Epidemiology, Analytics, and Knowledge (OCEAN), Tan Tock Seng Hospital, Singapore, Singapore
| | - M T G Holden
- School of Medicine, University of St Andrews, St Andrews, UK
| | - B Ang
- Department of Infectious Diseases, Tan Tock Seng Hospital, Singapore, Singapore
| | - A Chow
- Department of Clinical Epidemiology, Office of Clinical Epidemiology, Analytics, and Knowledge (OCEAN), Tan Tock Seng Hospital, Singapore, Singapore.
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