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Boven A, Vlieghe E, Engstrand L, Andersson FL, Callens S, Simin J, Brusselaers N. Clostridioides difficile infection-associated cause-specific and all-cause mortality: a population-based cohort study. Clin Microbiol Infect 2023; 29:1424-1430. [PMID: 37473840 DOI: 10.1016/j.cmi.2023.07.008] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2023] [Revised: 06/29/2023] [Accepted: 07/10/2023] [Indexed: 07/22/2023]
Abstract
OBJECTIVES Clostridioides difficile infection (CDI) is a common healthcare-associated infection and leading cause of gastroenteritis-related mortality worldwide. However, data on CDI-associated mortality are scarce. We aimed to examine the association between CDI and all-cause and cause-specific mortality. We additionally explored contributing causes of mortality, including recurrent CDI, hospital- or community-acquired CDI, chronic comorbidities, and age. METHODS This nationwide population-based cohort study (from 2006 to 2019) compared individuals with CDI with the entire Swedish background population using standardized mortality ratios. In addition, a matched-cohort design (1:10), utilizing multivariable Poisson-regression models, provided incidence rate ratios (IRRs) with 95% CIs. RESULTS This study included 43 150 individuals with CDI and 355 172 controls. In total, 69.7% were ≥65 years, and 54.9% were female. CDI was associated with a 3- to 7-fold increased mortality rate (IRR = 3.5, 95% CI: 3.3-3.6; standardized mortality ratio = 6.8, 95% CI: 6.7-6.9) compared with the matched controls and Swedish background population, respectively. Mortality rates were highest for hospital-acquired CDI (IRR = 2.4, 95% CI: 1.9-3.2) and during the first CDI episode (IRR = 0.2, 95% CI: 0.2-0.3 for recurrent versus first CDI). Individuals with CDI had more chronic comorbidities than controls, yet mortality remained higher among CDI cases even after adjustment and stratification for comorbidity; CDI was associated with increased mortality (IRR = 6.1, 95% CI: 5.5-6.8), particularly among those without any chronic comorbidities. DISCUSSION CDI was associated with elevated all-cause and cause-specific mortality, despite possible confounding by ill health. Mortality rates were consistently increased across sexes, all age groups, and comorbidity groups.
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Affiliation(s)
- Annelies Boven
- Centre for Translational Microbiome Research, Department of Microbiology, Tumour and Cell Biology, Karolinska Institutet, Stockholm, Sweden; Department of Family Medicine and Population Health, Antwerp University, Antwerp, Belgium
| | - Erika Vlieghe
- Department of Family Medicine and Population Health, Antwerp University, Antwerp, Belgium; General Internal Medicine, Antwerp University Hospital, Antwerp, Belgium
| | - Lars Engstrand
- Centre for Translational Microbiome Research, Department of Microbiology, Tumour and Cell Biology, Karolinska Institutet, Stockholm, Sweden
| | | | - Steven Callens
- General Internal Medicine, Department of Internal Medicine and Paediatrics, Ghent University, Ghent, Belgium
| | - Johanna Simin
- Centre for Translational Microbiome Research, Department of Microbiology, Tumour and Cell Biology, Karolinska Institutet, Stockholm, Sweden; Department of Family Medicine and Population Health, Antwerp University, Antwerp, Belgium
| | - Nele Brusselaers
- Centre for Translational Microbiome Research, Department of Microbiology, Tumour and Cell Biology, Karolinska Institutet, Stockholm, Sweden; Department of Family Medicine and Population Health, Antwerp University, Antwerp, Belgium; Department of Head and Skin, Ghent University, Ghent, Belgium.
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Yamaki J, Chawla S, Tong S, Lozada KA, Yang S. Iron Effects on Clostridioides difficile Toxin Production and Antimicrobial Susceptibilities. Antibiotics (Basel) 2022; 11:537. [PMID: 35625180 PMCID: PMC9137654 DOI: 10.3390/antibiotics11050537] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2022] [Revised: 03/30/2022] [Accepted: 04/18/2022] [Indexed: 12/10/2022] Open
Abstract
Despite the benefits of red blood cell (RBC) transfusion therapy, it can render patients vulnerable to iron overload. The excess iron deposits in various body tissues cause severe complications and organ damage such as cardiotoxicity and mold infections. Clostridioides difficile infection (CDI) is the most common cause of nosocomial diarrhea among cancer patients and is associated with significant morbidity and mortality. Our study aims to determine the role of iron overload and the effects of iron chelators on CDI. Our results demonstrated that iron (Fe3+) stimulated the growth of C. difficile with increased colony formation units (CFU) in a dose-dependent manner. Exposure to excess iron also increased the gene expression levels of tcdA and tcdB. The production of C. difficile toxin A, necessary for the pathogenesis of C. difficile, was also elevated after iron treatment. In the presence of excess iron, C. difficile becomes less susceptible to metronidazole with significantly elevated minimum inhibitory concentration (MIC) but remains susceptible to vancomycin. Iron-stimulated colony formation and production of C. difficile toxins were effectively diminished by iron chelator deferoxamine co-treatment. Incorporating iron overload status as a potential factor in developing a risk prediction model of CDI and antibiotic treatment response may aid clinical practitioners in optimizing CDI management in oncology patients.
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Affiliation(s)
- Jason Yamaki
- Department of Pharmacy Practice, Chapman University School of Pharmacy, Irvine, CA 92618, USA; (J.Y.); (S.C.)
| | - Swati Chawla
- Department of Pharmacy Practice, Chapman University School of Pharmacy, Irvine, CA 92618, USA; (J.Y.); (S.C.)
| | - Shirley Tong
- Department of Biomedical and Pharmaceutical Sciences, Chapman University School of Pharmacy, Irvine, CA 92618, USA; (S.T.); (K.A.L.)
| | - Kate Alison Lozada
- Department of Biomedical and Pharmaceutical Sciences, Chapman University School of Pharmacy, Irvine, CA 92618, USA; (S.T.); (K.A.L.)
| | - Sun Yang
- Department of Pharmacy Practice, Chapman University School of Pharmacy, Irvine, CA 92618, USA; (J.Y.); (S.C.)
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Cózar A, Ramos-Martínez A, Merino E, Martínez-García C, Shaw E, Marrodán T, Calbo E, Bereciartúa E, Sánchez-Muñoz LA, Salavert M, Pérez-Rodríguez MT, García D, Bravo-Ferrer JM, Gálvez-Acebal J, Henríquez C, Cuquet J, Gil-Campesino H, Torres L, Sánchez-Porto A, Royuela A, Cobo J. High delayed mortality after the first episode of Clostridium difficile infection. Anaerobe 2019; 57:93-98. [PMID: 30959165 DOI: 10.1016/j.anaerobe.2019.04.004] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2018] [Revised: 04/03/2019] [Accepted: 04/04/2019] [Indexed: 12/19/2022]
Abstract
Clostridium difficile infection (CDI) is characterized by a high delayed and unrelated mortality. Predicting delayed mortality in CDI patients could allow the implementation of interventions that could reduce these events. A prospective multicentric study was carried out to investigate prognostic factors associated with mortality. It was based on a cohort (July 2015 to February 2016) of 295 patients presenting with CDI. Logistic regression was used and the model was calibrated using the Hosmer-Lemeshow test. The mortality rate at 75 days in our series was 18%. Age (>65 years), comorbidity (defined by heart failure, diabetes mellitus with any organ lesion, renal failure, active neoplasia or immunosuppression) and fecal incontinence at clinical presentation were associated with delayed (75-day) mortality. When present, each of the aforementioned variables added one point to the score. Mortalities with 0, 1, 2 and 3 points were 0%, 9.4%, 18.5% and 38.2%, respectively. The area under the ROC curve was 0.743, and the Hosmer-Lemeshow goodness-of-fit test p value was 0.875. Therefore, the prediction of high delayed mortality in CDI patients by our scoring system could promote measures for increasing survival in suitable cases.
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Affiliation(s)
- Alberto Cózar
- Servicio de Medicina Interna, Hospital Universitario Puerta de Hierro-Majadahonda, Spain.
| | - Antonio Ramos-Martínez
- Unidad de Enfermedades Infecciosas, Hospital Universitario Puerta de Hierro-Majadahonda, Spain.
| | - Esperanza Merino
- Unidad de Enfermedades Infecciosas, Hospital Universitario de Alicante, Spain.
| | | | - Evelyn Shaw
- Servicio de Enfermedades Infecciosas, Hospital Universitario de Bellvitge, Epidemiologia de Les Infeccions Bacterianes, Patologia Infecciosa I Transplantament, Institut D'Investigació Biomèdica de Bellvitge, IDIBELL, Spain.
| | | | - Esther Calbo
- Servicio de Medicina Interna, Unidad de Control de La Infección, Hospital Universitario Mútua Terrasssa, Spain.
| | - Elena Bereciartúa
- Unidad de Enfermedades Infecciosas, Hospital Universitario Cruces, Spain.
| | - Luis A Sánchez-Muñoz
- Servicio de Medicina Interna, Hospital Clínico Universitario de Valladolid, Spain.
| | - Miguel Salavert
- Unidad de Enfermedades Infecciosas, Hospital Universitario y Politécnico La Fe (Valencia), Spain.
| | - M Teresa Pérez-Rodríguez
- Unidad de Patología Infecciosa (Servicio de Medicina Interna), Complejo Universitario de Vigo, Spain.
| | - Dácil García
- Sección de Infecciones, Servicio de Medicina Interna Hospital Universitario de Canarias, La Laguna (Tenerife), Spain.
| | | | - Juan Gálvez-Acebal
- Servicio de Enfermedades Infecciosas, Hospital Virgen Macarena, Sevilla, Spain.
| | - César Henríquez
- Servicio de Medicina Interna, Hospital Fundación Alcorcón, Spain.
| | - Jordi Cuquet
- Proceso de Infecciones, Servicio de Medicina Interna, Hospital General de Granollers, Spain.
| | - Helena Gil-Campesino
- Servicio de Microbiología, Hospital Nuestra Señora de Candelaria. Sta. Cruz de Tenerife, Spain.
| | - Luis Torres
- Servicio de Microbiología, Hospital San Jorge de Huesca, Spain.
| | - Antonio Sánchez-Porto
- Servicio de Microbiología, Hospital SAS, La Línea (La Línea de La Concepción), Spain.
| | - Ana Royuela
- Servicio de Bioestadística Clínica, Hospital Universitario Puerta de Hierro-Majadahonda, Spain.
| | - Javier Cobo
- Servicio de Enfermedades Infecciosas, Hospital Universitario Ramón y Cajal, IRYCIS, Spain.
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Barbut F, Galperine T, Vanhems P, Le Monnier A, Durand-Gasselin B, Canis F, Jeanbat V, Duburcq A, Alami S, Bensoussan C, Fagnani F. Quality of life and utility decrement associated with Clostridium difficile infection in a French hospital setting. Health Qual Life Outcomes 2019; 17:6. [PMID: 30634997 PMCID: PMC6329091 DOI: 10.1186/s12955-019-1081-5] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2018] [Accepted: 01/03/2019] [Indexed: 12/23/2022] Open
Abstract
Background Clostridium difficile infection (CDI) is associated with a substantial Quality of life impact on patients that has not been so far measured with a generic validated instrument. Methods A prospective study was performed in 7 French acute-care settings in patients presenting with a bacteriologically-confirmed CDI. The EQ-5D-3 L was filled in by patients at 7 ± 2 days after CDI diagnosis to describe their state of health at that date as well as their state of health immediately before the CDI episode (baseline). Individual utility decrement was obtained by subtracting the corresponding utilities. The Quality Adjusted Life Year (QALY) loss was calculated by multiplying the days spent from baseline to the date of the interview, by the decrement of utility. A multivariate analysis of variance of the utility decrement according to CDI and patients characteristics was performed. Results Eighty patients were enrolled (mean age: 69.4 years, 55% females). The utility scores dropped from a mean 0.542 (SD: 0.391) at baseline to 0.050 (SD: 0.404) during the CDI episode with a mean adjusted utility decrement of 0.492 (SD: 0.398) point. This decrement increased significantly with CDI severity (Zar score ≥ 3) (p = 0.001), in patients with a positive baseline utility (p = 0.032), in women as compared to men (p = 0.041) and in patients aged more than 65 years (p = 0.041). No association with the Charlson index was found. The associated QALY loss not integrating the excess mortality was 0.028 (SD: 0.053). Conclusions The impact on quality of life of CDI episodes is major and translates in a substantial QALY loss despite their short duration. Electronic supplementary material The online version of this article (10.1186/s12955-019-1081-5) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Frédéric Barbut
- National Reference Laboratory for Clostridium difficile, Hôpital Saint-Antoine, 34 rue Crozatier, 75012, Paris, France. .,Université Paris Descartes, UMR-S1139, Sorbonne Paris Cité, Paris, France.
| | - Tatiana Galperine
- CHRU Lille, Maladies Infectieuses, French Group of Faecal Microbiota Transplantation (GFTF), Lille, France
| | - Philippe Vanhems
- Groupement Hospitalier Edouard Herriot, Unité d'Hygiène, Epidémiologie et Prévention, Hospices Civils de Lyon, and Université Lyon 1, Lyon, France
| | - Alban Le Monnier
- Laboratoire de Microbiologie Clinique, GH Paris Saint-Joseph, Paris, France
| | - Bernard Durand-Gasselin
- Hôpital Léopold Bellan, Service de gériatrie and Fondation Hospitalière Ste Marie Service de Soins de Suite et de Réadaptation gérontologique, Paris, France
| | - Frédérique Canis
- Centre hospitalier de Valenciennes, UF de Microbiologie, Pôle de Biologie Médicale, Valenciennes, France
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Barbut F, Bouée S, Longepierre L, Goldberg M, Bensoussan C, Levy-Bachelot L. Excess mortality between 2007 and 2014 among patients with Clostridium difficile infection: a French health insurance database analysis. J Hosp Infect 2018; 98:21-28. [DOI: 10.1016/j.jhin.2017.07.006] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2017] [Accepted: 07/07/2017] [Indexed: 12/18/2022]
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Wu MA, Leidi F. Vancomycin vs Metronidazole for Clostridium difficile infection: focus on recurrence and mortality. Intern Emerg Med 2017; 12:871-872. [PMID: 28681270 DOI: 10.1007/s11739-017-1710-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/26/2017] [Accepted: 06/30/2017] [Indexed: 11/28/2022]
Affiliation(s)
- Maddalena Alessandra Wu
- Department of Biomedical and Clinical Sciences Luigi Sacco, University of Milan, ASST Fatebenefratelli Sacco, Milan, Italy.
| | - Federica Leidi
- Department of Biomedical and Clinical Sciences Luigi Sacco, University of Milan, ASST Fatebenefratelli Sacco, Milan, Italy
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Norovirus Disease in Older Adults Living in Long-Term Care Facilities: Strategies for Management. CURRENT GERIATRICS REPORTS 2017; 6:26-33. [PMID: 29204334 DOI: 10.1007/s13670-017-0195-z] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
Purpose of Review Noroviruses are the most common cause of gastroenteritis outbreaks in long-term care facility (LTCFs). This review summarizes the most up-to-date knowledge on norovirus infection in LTCFs with the aim of identifying potential strategies for management. Recent Findings LTCF residents are at greater risk of norovirus infection. Early identification of norovirus infection and prompt initiation of appropriate supportive therapy are required to reduce morbidity and mortality. Measures to prevent outbreaks and reduce the risk of norovirus infection in LTCFs include timely diagnosis and implementation of infection control interventions to limit virus transmission. Summary Current guidelines for prevention and control are based on generic principles of infection control. Real-time reverse transcription-quantitative polymerase chain reaction assays have been the gold standard for the rapid and sensitive detection of noroviruses. With the recent breakthroughs of human norovirus in vitro culture, doors are now opened to evaluate the efficacy of environmental disinfectants and hand hygiene options. Additionally, development of licensed vaccines against noroviruses may provide another important tool for infection prevention among high-risk individuals.
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Davies KA, Ashwin H, Longshaw CM, Burns DA, Davis GL, Wilcox MH. Diversity of Clostridium difficile PCR ribotypes in Europe: results from the European, multicentre, prospective, biannual, point-prevalence study of Clostridium difficile infection in hospitalised patients with diarrhoea (EUCLID), 2012 and 2013. Euro Surveill 2016; 21:30294. [DOI: 10.2807/1560-7917.es.2016.21.29.30294] [Citation(s) in RCA: 119] [Impact Index Per Article: 14.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2015] [Accepted: 12/04/2015] [Indexed: 12/18/2022] Open
Abstract
Clostridium difficile infection (CDI) is the major cause of infective diarrhoea in healthcare environments. As part of the European, multicentre, prospective, biannual, point-prevalence study of Clostridium difficile infection in hospitalised patients with diarrhoea (EUCLID), the largest C. difficile epidemiological study of its type, PCR ribotype distribution of C. difficile isolates in Europe was investigated. PCR ribotyping was performed on 1,196 C. difficile isolates from diarrhoeal samples sent to the European coordinating laboratory in 2012–13 and 2013 (from two sampling days) by 482 participating hospitals from 19 European countries. A total of 125 ribotypes were identified, of which ribotypes 027 (19%, n =222), 001/072 (11%, n = 134) and 014/020 (10%, n = 119) were the most prevalent. Distinct regional patterns of ribotype distribution were noted. Of 596 isolates from patients with toxin-positive stools (CDI cases), ribotype 027 accounted for 22% (32/144) of infections in cases aged from 18 to less than 65 years, but the prevalence decreased in those aged ≥ 65 years (14% (59/412)) and further decreased in those aged ≥ 81 years (9% (18/195)). The prevalence of ribotype 027 and 176, but not other epidemic strains, was inversely proportional to overall ribotype diversity (R2 = 0.717). This study highlights an increased diversity of C. difficile ribotypes across Europe compared with previous studies, with considerable intercountry variation in ribotype distribution. Continuous surveillance programmes are necessary to monitor the changing epidemiology of C. difficile.
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Affiliation(s)
- Kerrie A Davies
- Leeds Institute for Biomedical and Clinical Sciences, University of Leeds, Leeds, United Kingdom
| | - Helen Ashwin
- Leeds Institute for Biomedical and Clinical Sciences, University of Leeds, Leeds, United Kingdom
| | | | | | - Georgina L Davis
- Leeds Institute for Biomedical and Clinical Sciences, University of Leeds, Leeds, United Kingdom
| | - Mark H Wilcox
- Leeds Institute for Biomedical and Clinical Sciences, University of Leeds, Leeds, United Kingdom
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Excess Mortality Attributable to Clostridium difficile and Risk Factors for Infection in an Historic Cohort of Hospitalised Patients Followed Up in the United Kingdom Death Register. PLoS One 2016; 11:e0149983. [PMID: 26999613 PMCID: PMC4801172 DOI: 10.1371/journal.pone.0149983] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2015] [Accepted: 01/14/2016] [Indexed: 11/19/2022] Open
Abstract
Methods We compared time from hospital admission to death in a probability sample of 100 Clostridium difficile infected cases and a probability sample of 98 non-cases admitted to an English teaching hospital between 2005 and 2007 with follow up in the UK national death register using survival analysis. Results Clostridium difficile infection was associated with a 50% increased risk of death (Hazard Ratio 1.51 (95% CI: 1.05–2.19 p = 0.03) at between five to eight years in Cox Regression analysis adjusting for age, sex, Charlson comorbidity index, diagnosis of a malignant condition and insertion of a nasogastric tube during admission. Acquisition of Clostridium difficile infection was independently associated with an almost six fold higher odds of being admitted with a diagnosis of infection of any other type (OR 5.79 (2.19, 15.25) p<0.001). Conclusions Our results strongly support continued priority being given to improve prevention and treatment of Clostridium difficile infection in the English National Health Service particularly in patients admitted with an infection. Our results may be applicable to other health systems.
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Lindsay L, Wolter J, De Coster I, Van Damme P, Verstraeten T. A decade of norovirus disease risk among older adults in upper-middle and high income countries: a systematic review. BMC Infect Dis 2015; 15:425. [PMID: 26467099 PMCID: PMC4606836 DOI: 10.1186/s12879-015-1168-5] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2015] [Accepted: 09/30/2015] [Indexed: 01/25/2023] Open
Abstract
BACKGROUND Noroviruses (NoVs) are the most common cause of acute gastroenteritis (AGE) causing both sporadic and outbreak-associated illness. Norovirus (NoV) infections occur across all ages but certain sub-groups are considered at increased risk due to heightened transmission and/or symptom severity. Older adults are potentially at high risk of NoV-associated illness due to frequent outbreaks in long-term care facilities (LTCFs) and severe health outcomes following infection. Elucidation of NoV risk among older adults will support prevention, treatment and control efforts. METHODS We conducted a systematic literature review to summarize the published risk estimates of NoV-associated illness, hospitalization and death among individuals aged 65 years and older. A structured search using defined NoV and gastroenteritis (GE) terms was performed in the PubMed and EMBASE databases of human studies published between January 1, 2003 and May 16, 2013. RESULTS We identified 39 studies from high income (HI) and upper-middle income (UMI) countries. Thirty-six percent of publications provided risk estimates based on laboratory-confirmed or epidemiologically-linked population-based surveillance data using molecular diagnostic methods. Over the study period, estimated annual NoV rates and extrapolated number of cases among older adults in HI and UMI countries were: 29-120/10,000 or 1.2-4.8 million NoV-associated illnesses; 18-54/10,000 or 723,000-2.2 million NoV-associated outpatient visits; 1-19/10,000 or 40,00-763,000 NoV-associated inpatient visits; 0.04-0.32/10,000 or 2000-13,000 NoV-associated deaths. NoV was responsible for approximately 10-20 % of GE hospitalizations and 10-15 % of all-cause GE deaths among older adults. Older adults experienced a heightened risk of nosocomial infections. Those in LTCFs experience frequent NoV outbreaks and the range in attack rates was 3-45 %, case hospitalization rates 0.5-6 % and case fatality rates 0.3-1.6 %. CONCLUSIONS Older adults are at increased risk of severe NoV-associated health outcomes. NoV-associated hospitalization rates were higher, more severe, resulted in longer stays and incurred greater costs than for younger patients. NoV-associated mortality rates were approximately 200 % higher among individuals 65 years and older compared to <5 years. The burden of NoV among older adults is expected to rise along with societal aging and increased need for institutionalized care. NoV prevention in older adults, including potential vaccination, may significantly impact risk of severe illness.
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Affiliation(s)
- Lisa Lindsay
- P95 Pharmacovigilance and Epidemiology Services, Leuven, Belgium.
| | - Joanne Wolter
- Contractor to P95 Pharmacovigilance and Epidemiology Services, Brisbane, Australia.
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11
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Steindl G, Fiedler A, Huhulescu S, Wewalka G, Allerberger F. Effect of airborne hydrogen peroxide on spores of Clostridium difficile. Wien Klin Wochenschr 2014; 127:421-6. [PMID: 25527140 DOI: 10.1007/s00508-014-0682-6] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2014] [Accepted: 11/20/2014] [Indexed: 12/17/2022]
Abstract
BACKGROUND Contamination of surfaces by spores of Clostridium difficile is a major factor influencing the spread of healthcare-associated C. difficile infection. The aim of this study was to test the effect of an automated room disinfection system that provides an aerosol of 7.5 % hydrogen peroxide (H2O2) disinfectant, on spores of two different strains of C. difficile, and to evaluate the impact of biological soiling on the efficacy of H2O2 disinfection. MATERIAL AND METHOD The strains used were a C. difficile PCR ribotype 027 and a C. difficile ATCC 9689. Spore suspensions of each strain were applied to ceramic tiles and exposed to aerosolized H2O2 at different locations in a test room. Biological soiling was simulated by bovine serum albumin and sheep erythrocytes. At set time points spores were recovered, plated onto Columbia 5 % sheep blood agar, and surviving bacteria were counted as colony-forming units (cfu). RESULTS No viable spores of either strain were recovered after a 3 h exposure to gaseous H2O2. Spores located inside a drawer showed recovery of approximately 1E5 cfu/ml for C. difficile ribotype 027 after 1 h. In the presence of organic matter, a more than fivefold log reduction compared with not exposed controls could be observed for spores of either strain tested. CONCLUSION Appropriate decontamination of surfaces exposed to spores of C. difficile is challenging for conventional cleaning methods. Aerosolized H2O2 delivered by automated room disinfection systems could possibly improve surface decontamination and thereby reduce transmission of healthcare-associated C. difficile infection. Also in the presence of organic matter H2O2 disinfection appears to be an effective adjunct for decontamination of environmental surfaces.
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Affiliation(s)
- Georg Steindl
- Institute of Medical Microbiology and Hygiene, Austrian Agency for Health and Food Safety, Beethovenstraße 6, 8010, Graz, Austria,
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12
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Olsen MA, Yan Y, Reske KA, Zilberberg MD, Dubberke ER. Recurrent Clostridium difficile infection is associated with increased mortality. Clin Microbiol Infect 2014; 21:164-70. [PMID: 25658560 DOI: 10.1016/j.cmi.2014.08.017] [Citation(s) in RCA: 120] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2014] [Revised: 08/26/2014] [Accepted: 08/29/2014] [Indexed: 02/06/2023]
Abstract
Clostridium difficile infections (CDI) are associated with decreased survival, and up to 30% of CDI patients may experience a recurrence. Data on the impact of recurrent CDI on mortality are scarce. The purpose of this study was to determine whether recurrent CDI was independently associated with decreased 6-month survival compared with patients with CDI who did not develop a recurrence. We performed a retrospective cohort study at an academic, urban, tertiary care hospital. Data were collected from the electronic medical record and chart review. CDI patients were followed for 180 days from the end of their index hospital discharge or end of index CDI antibiotic treatment, whichever was later, to determine mortality. Kaplan-Meier analysis was used to compare patient mortality by recurrent CDI status. Cox proportional hazards models were used to determine independent risk factors for death within 180 days. In all, 3958 patients aged ≥ 18 years who developed an initial CDI episode from 2003 to 2009, including 421 patients with recurrent CDI, were included in the study. Thirty-six per cent of persons with recurrent CDI died within 180 days, compared with 26% of persons without CDI recurrence (log-rank p <0.001). Recurrent CDI was associated with significantly higher hazards of death within 180 days, adjusting for demographics, comorbidities and medications received during the index CDI hospitalization (hazard ratio 1.33; 95% CI 1.12-1.58). Recurrent CDI is associated with significantly increased risk of death within 6 months after completion of their initial CDI treatment compared with CDI patients who do not develop a recurrence.
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Affiliation(s)
- M A Olsen
- Division of Infectious Diseases, Washington University School of Medicine, St Louis, MO, USA; Division of Public Health Sciences, Washington University School of Medicine, St Louis, MO, USA.
| | - Y Yan
- Division of Public Health Sciences, Washington University School of Medicine, St Louis, MO, USA; Department of General Surgery, Washington University School of Medicine, St Louis, MO, USA
| | - K A Reske
- Division of Infectious Diseases, Washington University School of Medicine, St Louis, MO, USA
| | - M D Zilberberg
- EviMed Research Group, LLC, Goshen, MA, USA; University of Massachusetts, Amherst, MA, USA
| | - E R Dubberke
- Division of Infectious Diseases, Washington University School of Medicine, St Louis, MO, USA
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Starzengruber P, Segagni Lusignani L, Wrba T, Mitteregger D, Indra A, Graninger W, Presterl E, Diab-Elschahawi M. Severe Clostridium difficile infection: incidence and risk factors at a tertiary care university hospital in Vienna, Austria. Wien Klin Wochenschr 2014; 126:427-30. [PMID: 24903143 DOI: 10.1007/s00508-014-0549-x] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2014] [Accepted: 04/13/2014] [Indexed: 12/20/2022]
Abstract
BACKGROUND Clostridium difficile infection (CDI) is the major cause of hospital-acquired bacterial diarrhoea. The incidence of CDI has been increasing in Canada, the US and Europe and severe cases are becoming more common. METHODS A retrospective cohort study investigating all patients with an episode of CDI present at the Vienna University Hospital between 01 January 2012 and 31 December 2012 was conducted. All microbiologically confirmed C. difficile toxin positive cases were included, ribotyped and analysed regarding their clinical course. RESULTS A total of 278 patients with CDI were recorded, with an overall CDI incidence of 5.23 per 10,000 patients-days. Around 84,5 % (235/278) of CDI cases would have been classified as severe CDI according to European Society of Clinical Microbiology and Infectious Diseases (ESCMID) if all criteria were used. According to Society for Healthcare Epidemiology of America and the Infectious Diseases Society of America (SHEA/IDSA) guidelines only 16.5 % (46/278) could be classified as severe; with a severe CDI incidence of 4.41 and 0.86 per 10,000 patient-days, respectively. Multivariate analysis showed only a co-morbidity index of ≥ 3 (p = 0.013) as independent risk factor for severe CDI. No link between ribotype 027 and severity or clustering was observed in our study population. CONCLUSIONS Special attention in terms of restrictive antibiotic prescription should be given to patients having a Charlson co-morbidity ≥ 3 at the time of hospital admission. SHEA/IDSA guidelines were more accurate than ESCMID criteria in predicting severe CDI in our collective, of mostly severely ill patients, in a tertiary care hospital setting.
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Affiliation(s)
- Peter Starzengruber
- Department of Hospital Hygiene and Infection Control, Vienna General Hospital, Medical University Vienna, Waehringer Guertel 18-20, 1090, Vienna, Austria
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