151
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Goldenberg SD. Faecal microbiota transplantation for recurrent Clostridium difficile infection and beyond: risks and regulation. J Hosp Infect 2015; 92:115-6. [PMID: 26792682 DOI: 10.1016/j.jhin.2015.12.004] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2015] [Accepted: 12/10/2015] [Indexed: 12/22/2022]
Affiliation(s)
- S D Goldenberg
- Centre for Clinical Infection and Diagnostics Research, King's College, London, and Guy's & St Thomas' NHS Foundation Trust, London, UK.
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152
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Vuotto C, Moura I, Barbanti F, Donelli G, Spigaglia P. Subinhibitory concentrations of metronidazole increase biofilm formation in Clostridium difficile strains. Pathog Dis 2015; 74:ftv114. [PMID: 26656887 DOI: 10.1093/femspd/ftv114] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/01/2015] [Indexed: 01/05/2023] Open
Abstract
Resistance mechanism to metronidazole is still poorly understood, even if the number of reports on Clostridium difficile strains with reduced susceptibility to this antibiotic is increasing. In this study, we investigated the ability of the C. difficile strains 7032994, 7032985 and 7032989, showing different susceptibility profiles to metronidazole but all belonging to the PCR ribotype 010, to form biofilm in vitro in presence and absence of subinhibitory concentrations of metronidazole. The quantitative biofilm production assay performed in presence of metronidazole revealed a significant increase in biofilm formation in both the susceptible strain 7032994 and the strain 7032985 exhibiting a reduced susceptibility to this antibiotic, while antibiotic pressure did not affect the biofilm-forming ability of the stable-resistant strain 7032989. Moreover, confocal microscopy analysis showed an abundant biofilm matrix production by the strains 7032994 and 7032885, when grown in presence of metronidazole, but not in the stable-resistant one. These results seem to demonstrate that subinhibitory concentrations of metronidazole are able to enhance the in vitro biofilm production of the above-mentioned PCR ribotype 010 C. difficile strains, susceptible or with reduced susceptibility to this antibiotic, suggesting a possible role of biofilm formation in the multifactorial mechanism of metronidazole resistance developed by C. difficile.
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Affiliation(s)
- Claudia Vuotto
- Microbial Biofilm Laboratory, IRCCS Fondazione Santa Lucia, 00179 Rome, Italy
| | - Ines Moura
- Department of Infectious, Parasitic and Immune-mediated Diseases, Istituto Superiore di Sanità, 00161 Rome, Italy
| | - Fabrizio Barbanti
- Department of Infectious, Parasitic and Immune-mediated Diseases, Istituto Superiore di Sanità, 00161 Rome, Italy
| | - Gianfranco Donelli
- Microbial Biofilm Laboratory, IRCCS Fondazione Santa Lucia, 00179 Rome, Italy
| | - Patrizia Spigaglia
- Department of Infectious, Parasitic and Immune-mediated Diseases, Istituto Superiore di Sanità, 00161 Rome, Italy
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153
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Chen S, Sun C, Wang H, Wang J. The Role of Rho GTPases in Toxicity of Clostridium difficile Toxins. Toxins (Basel) 2015; 7:5254-67. [PMID: 26633511 PMCID: PMC4690124 DOI: 10.3390/toxins7124874] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2015] [Revised: 11/18/2015] [Accepted: 11/18/2015] [Indexed: 12/18/2022] Open
Abstract
Clostridium difficile (C. difficile) is the main cause of antibiotic-associated diarrhea prevailing in hospital settings. In the past decade, the morbidity and mortality of C. difficile infection (CDI) has increased significantly due to the emergence of hypervirulent strains. Toxin A (TcdA) and toxin B (TcdB), the two exotoxins of C. difficile, are the major virulence factors of CDI. The common mode of action of TcdA and TcdB is elicited by specific glucosylation of Rho-GTPase proteins in the host cytosol using UDP-glucose as a co-substrate, resulting in the inactivation of Rho proteins. Rho proteins are the key members in many biological processes and signaling pathways, inactivation of which leads to cytopathic and cytotoxic effects and immune responses of the host cells. It is supposed that Rho GTPases play an important role in the toxicity of C. difficile toxins. This review focuses on recent progresses in the understanding of functional consequences of Rho GTPases glucosylation induced by C. difficile toxins and the role of Rho GTPases in the toxicity of TcdA and TcdB.
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Affiliation(s)
- Shuyi Chen
- School of Bioscience and Bioengineering, South China University of Technology (SCUT), Guangzhou 510006, China.
| | - Chunli Sun
- School of Bioscience and Bioengineering, South China University of Technology (SCUT), Guangzhou 510006, China.
| | - Haiying Wang
- School of Bioscience and Bioengineering, South China University of Technology (SCUT), Guangzhou 510006, China.
| | - Jufang Wang
- School of Bioscience and Bioengineering, South China University of Technology (SCUT), Guangzhou 510006, China.
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154
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Assessment of Clostridium difficile Burden in Patients Over Time With First Episode Infection Following Fidaxomicin or Vancomycin. Infect Control Hosp Epidemiol 2015; 37:215-8. [PMID: 26592763 DOI: 10.1017/ice.2015.270] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
In patients with first episode Clostridium difficile infection treated with vancomycin or fidaxomicin, more patients receiving fidaxomicin achieved at least 2 log10 colony-forming units/g reduction in spores at the follow-up visit (P=.02). Similar to published literature, a higher proportion of patients receiving fidaxomicin demonstrated sustained clinical response.
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155
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Le Lay C, Fernandez B, Hammami R, Ouellette M, Fliss I. On Lactococcus lactis UL719 competitivity and nisin (Nisaplin(®)) capacity to inhibit Clostridium difficile in a model of human colon. Front Microbiol 2015; 6:1020. [PMID: 26441942 PMCID: PMC4585240 DOI: 10.3389/fmicb.2015.01020] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2015] [Accepted: 09/08/2015] [Indexed: 01/20/2023] Open
Abstract
Clostridium difficile is the most frequently identified enteric pathogen in patients with nosocomially acquired, antibiotic-associated diarrhea and pseudomembranous colitis. Although metronidazole and vancomycin were effective, an increasing number of treatment failures and recurrence of C. difficile infection are being reported. Use of probiotics, particularly metabolically active lactic acid bacteria, was recently proposed as an alternative for the medical community. The aim of this study was to assess a probiotic candidate, nisin Z-producer Lactococcus lactis UL719, competitivity and nisin (Nisaplin®) capacity to inhibit C. difficile in a model of human colon. Bacterial populations was enumerated by qPCR coupled to PMA treatment. L. lactis UL719 was able to survive and proliferate under simulated human colon, did not alter microbiota composition, but failed to inhibit C. difficile. While a single dose of 19 μmol/L (5× the MIC) was not sufficient to inhibit C. difficile, nisin at 76 μmol/L (20×the MIC) was effective at killing the pathogen. Nisin (at 76 μmol/L) caused some temporary changes in the microbiota with Gram-positive bacteria being the mostly affected. These results highlight the capacity of L. lactis UL719 to survive under simulated human colon and the efficacy of nisin as an alternative in the treatment of C. difficile infections.
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Affiliation(s)
- Christophe Le Lay
- STELA Dairy Research Center, Nutrition and Functional Foods Institute, Université Laval, Québec QC, Canada ; Centre de Recherche en Infectiologie de l'Université Laval, Axe Maladies Infectieuses et Immunitaires, Centre de Recherche du CHU de Québec, Québec QC, Canada ; Département de Microbiologie-Infectiologie et d'Immunologie, Faculté de Médecine, Université Laval, Québec QC, Canada
| | - Benoit Fernandez
- STELA Dairy Research Center, Nutrition and Functional Foods Institute, Université Laval, Québec QC, Canada
| | - Riadh Hammami
- STELA Dairy Research Center, Nutrition and Functional Foods Institute, Université Laval, Québec QC, Canada
| | - Marc Ouellette
- Centre de Recherche en Infectiologie de l'Université Laval, Axe Maladies Infectieuses et Immunitaires, Centre de Recherche du CHU de Québec, Québec QC, Canada ; Département de Microbiologie-Infectiologie et d'Immunologie, Faculté de Médecine, Université Laval, Québec QC, Canada
| | - Ismail Fliss
- STELA Dairy Research Center, Nutrition and Functional Foods Institute, Université Laval, Québec QC, Canada
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156
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A Review of Management of Clostridium difficile Infection: Primary and Recurrence. Antibiotics (Basel) 2015; 4:411-23. [PMID: 27025632 PMCID: PMC4790304 DOI: 10.3390/antibiotics4040411] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2015] [Revised: 09/15/2015] [Accepted: 09/16/2015] [Indexed: 12/23/2022] Open
Abstract
Clostridium difficile infection (CDI) is a potentially fatal illness, especially in the elderly and hospitalized individuals. The recurrence and rates of CDI are increasing. In addition, some cases of CDI are refractory to the currently available antibiotics. The search for improved modalities for the management of primary and recurrent CDI is underway. This review discusses the current antibiotics, fecal microbiota transplantation (FMT) and other options such as immunotherapy and administration of non-toxigenic Clostridium difficile (CD) for the management of both primary and recurrent CDI.
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157
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Hikone M, Ainoda Y, Tago S, Fujita T, Hirai Y, Takeuchi K, Totsuka K. Risk factors for recurrent hospital-acquired Clostridium difficile infection in a Japanese university hospital. Clin Exp Gastroenterol 2015. [PMID: 26203270 PMCID: PMC4507450 DOI: 10.2147/ceg.s85007] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Background Clostridium difficile infection (CDI) is a highly prevalent hospital-associated infection. Although most patients respond well to discontinuation of antibiotics, 20%–30% of patients relapse. To initiate early therapeutic measures, the risk factors for recurrent CDI must be identified, although very few Japanese studies have used standard surveillance definitions to identify these risk factors. Methods We retrospectively reviewed the medical records of patients with health care facility-onset CDI between August 2011 and September 2013. Patients with diarrhea who were positive for Clostridium difficile (via an enzyme immunoassay) were defined as having CDI. Clinical data (eg, demographics, comorbidities, medication, laboratory results, and clinical outcomes) were evaluated, and multivariate analysis was used to identify risk factors that were associated with recurrent CDI. Results Seventy-six health care facility-onset CDI cases were identified, with an incidence rate of 0.8 cases per 10,000 patient-days. Fourteen cases (18.4%) were recurrent, with 13 patients having experienced a single recurrent episode and one patient having experienced three recurrent episodes. The 30-day and 90-day mortality rates were 7.9% and 14.5%, respectively. Multivariate analysis revealed that recurrent patients were more likely to have underlying malignant disease (odds ratio: 7.98; 95% confidence interval: 1.22–52.2; P=0.03) and a history of intensive care unit hospitalization (odds ratio: 49.9; 95% confidence interval: 1.01–2,470; P=0.049). Conclusion Intensive care unit hospitalization and malignancy are risk factors for recurrent CDI. Patients with these factors should be carefully monitored for recurrence and provided with appropriate antimicrobial stewardship.
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Affiliation(s)
- Mayu Hikone
- Department of Infectious Diseases, Tokyo Metropolitan Bokutoh General Hospital, Tokyo Women's Medical University, Tokyo, Japan
| | - Yusuke Ainoda
- Department of Infectious Diseases, Tokyo Metropolitan Bokutoh General Hospital, Tokyo Women's Medical University, Tokyo, Japan ; Department of Infectious Diseases, Tokyo Women's Medical University, Tokyo, Japan
| | - Sayaka Tago
- Department of Infectious Diseases, Tokyo Women's Medical University, Tokyo, Japan
| | - Takahiro Fujita
- Department of Infectious Diseases, Tokyo Women's Medical University, Tokyo, Japan
| | - Yuji Hirai
- Department of Infectious Diseases, Tokyo Women's Medical University, Tokyo, Japan
| | - Kaori Takeuchi
- Department of Infectious Diseases, Tokyo Women's Medical University, Tokyo, Japan
| | - Kyoichi Totsuka
- Department of Internal Medicine, Kitatama Hospital, Tokyo, Japan
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158
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Jarrad A, Karoli T, Blaskovich MAT, Lyras D, Cooper MA. Clostridium difficile drug pipeline: challenges in discovery and development of new agents. J Med Chem 2015; 58:5164-85. [PMID: 25760275 PMCID: PMC4500462 DOI: 10.1021/jm5016846] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2014] [Indexed: 12/17/2022]
Abstract
In the past decade Clostridium difficile has become a bacterial pathogen of global significance. Epidemic strains have spread throughout hospitals, while community acquired infections and other sources ensure a constant inoculation of spores into hospitals. In response to the increasing medical burden, a new C. difficile antibiotic, fidaxomicin, was approved in 2011 for the treatment of C. difficile-associated diarrhea. Rudimentary fecal transplants are also being trialed as effective treatments. Despite these advances, therapies that are more effective against C. difficile spores and less damaging to the resident gastrointestinal microbiome and that reduce recurrent disease are still desperately needed. However, bringing a new treatment for C. difficile infection to market involves particular challenges. This review covers the current drug discovery pipeline, including both small molecule and biologic therapies, and highlights the challenges associated with in vitro and in vivo models of C. difficile infection for drug screening and lead optimization.
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Affiliation(s)
- Angie
M. Jarrad
- The
Institute for Molecular Bioscience, University
of Queensland, St. Lucia, Queensland 4072, Australia
| | - Tomislav Karoli
- The
Institute for Molecular Bioscience, University
of Queensland, St. Lucia, Queensland 4072, Australia
| | - Mark A. T. Blaskovich
- The
Institute for Molecular Bioscience, University
of Queensland, St. Lucia, Queensland 4072, Australia
| | - Dena Lyras
- School
of Biomedical Sciences, Monash University, Clayton, Victoria 3800, Australia
| | - Matthew A. Cooper
- The
Institute for Molecular Bioscience, University
of Queensland, St. Lucia, Queensland 4072, Australia
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159
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Is tigecycline a suitable option for Clostridium difficile infection? Evidence from the literature. Int J Antimicrob Agents 2015; 46:8-12. [PMID: 25982915 DOI: 10.1016/j.ijantimicag.2015.03.012] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2015] [Revised: 03/21/2015] [Accepted: 03/24/2015] [Indexed: 12/15/2022]
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160
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Economic burden of Clostridium difficile associated diarrhoea: a cost-of-illness study from a German tertiary care hospital. Infection 2015; 43:707-14. [DOI: 10.1007/s15010-015-0810-x] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2015] [Accepted: 06/11/2015] [Indexed: 12/18/2022]
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161
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van der Wilden GM, Subramanian MP, Chang Y, Lottenberg L, Sawyer R, Davies SW, Ferrada P, Han J, Beekley A, Velmahos GC, de Moya MA. Antibiotic Regimen after a Total Abdominal Colectomy with Ileostomy for Fulminant Clostridium difficile Colitis: A Multi-Institutional Study. Surg Infect (Larchmt) 2015; 16:455-60. [PMID: 26069992 DOI: 10.1089/sur.2013.153] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND Fulminant Clostridium difficile colitis (fCDC) is a highly lethal disease with mortality rates ranging between 12% and 80%. Although often these patients require a total abdominal colectomy (TAC) with ileostomy, there is no established management protocol for post-operative antibiotics. In this study we aim to make some recommendations for post-operative antibiotic usage, while describing the practice across different institutions. METHODS Multi-institutional retrospective case series including fCDC patients who underwent a TAC between January 1, 2007, and June 30, 2012. We first analyzed the complete cohort and consecutively performed a survivor analysis, comparing different antibiotic regimens. Additionally we stratified by time interval (antibiotics for ≤7 d, or ≥8 d). Primary outcome was in-hospital mortality. Additional secondary outcomes included hospital length of stay (HLOS), ICU LOS, number of ventilator-free days, and occurrence of intra-abdominal complications (proctitis, abscess, sepsis, etc.). RESULTS A total of 100 fCDC patients that underwent a TAC were included across five institutions. Four different antibiotic regimens were compared; A (metronidazole IV+vancomycin PO), B (metronidazole IV), C (metronidazole IV+vanco PO and PR), and D (metronidazole IV+vancomycin PR). The combination of IV metronidazole with or without PO vancomycin showed superior outcomes in terms of a shorter ICU length of stay and more ventilator-free days. However, when comparing metronidazole alone vs. metronidazole and any combination of vancomycin, no significant differences were found. Neither the addition of vancomycin enema, nor the time interval changed outcomes. CONCLUSION Patients, after a TAC for fCDC, may be placed on either IV metronidazole or PO vancomycin depending upon local antibiograms, and proctitis may be treated with the addition of a vancomycin enema (PR). There was no data to support routine treatment of more than 7 d.
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Affiliation(s)
- Gwendolyn M van der Wilden
- 1 Department of Surgery, Division of Trauma, Emergency Surgery & Critical Care, Massachusetts General Hospital and Harvard Medical School , Boston, Massachusetts.,2 Department of Trauma Surgery, Leiden University Medical Center and Leiden University , Leiden, the Netherlands
| | - Melanie P Subramanian
- 1 Department of Surgery, Division of Trauma, Emergency Surgery & Critical Care, Massachusetts General Hospital and Harvard Medical School , Boston, Massachusetts
| | - Yuchiao Chang
- 3 Department of Medicine, Massachusetts General Hospital and Harvard Medical School , Boston, Massachusetts
| | - Lawrence Lottenberg
- 4 Department of Surgery, UF Health Science Center and University of Florida College of Medicine , Gainesville, Florida
| | - Robert Sawyer
- 5 Department of Surgery, University of Virginia Health System and University of Virginia School of Medicine , Charlottesville, Virginia
| | - Stephen W Davies
- 5 Department of Surgery, University of Virginia Health System and University of Virginia School of Medicine , Charlottesville, Virginia
| | - Paula Ferrada
- 6 Department of Surgery, VCU Medical Center and Virginia Commonwealth University School of Medicine , Richmond, Virginia
| | - Jinfeng Han
- 6 Department of Surgery, VCU Medical Center and Virginia Commonwealth University School of Medicine , Richmond, Virginia
| | - Alec Beekley
- 7 Department of Surgery, Thomas Jefferson University Hospital and Thomas Jefferson University , Philadelphia, Pennsylvania
| | - George C Velmahos
- 1 Department of Surgery, Division of Trauma, Emergency Surgery & Critical Care, Massachusetts General Hospital and Harvard Medical School , Boston, Massachusetts
| | - Marc A de Moya
- 1 Department of Surgery, Division of Trauma, Emergency Surgery & Critical Care, Massachusetts General Hospital and Harvard Medical School , Boston, Massachusetts
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162
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Porter R, Fogg C. Faecal microbiota transplantation for Clostridium difficile infection in the United Kingdom. Clin Microbiol Infect 2015; 21:578-82. [DOI: 10.1016/j.cmi.2015.01.020] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2014] [Revised: 01/20/2015] [Accepted: 01/22/2015] [Indexed: 12/17/2022]
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163
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Effects of surotomycin on Clostridium difficile viability and toxin production in vitro. Antimicrob Agents Chemother 2015; 59:4199-205. [PMID: 25941230 DOI: 10.1128/aac.00275-15] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2015] [Accepted: 04/29/2015] [Indexed: 12/31/2022] Open
Abstract
The increasing incidence and severity of infection by Clostridium difficile have stimulated attempts to develop new antimicrobial therapies. We report here the relative abilities of two antibiotics (metronidazole and vancomycin) in current use for treating C. difficile infection and of a third antimicrobial, surotomycin, to kill C. difficile cells at various stages of development and to inhibit the production of the toxin proteins that are the major virulence factors. The results indicate that none of the drugs affects the viability of spores at 8× MIC or 80× MIC and that all of the drugs kill exponential-phase cells when provided at 8× MIC. In contrast, none of the drugs killed stationary-phase cells or inhibited toxin production when provided at 8× MIC and neither vancomycin nor metronidazole killed stationary-phase cells when provided at 80× MIC. Surotomycin, on the other hand, did kill stationary-phase cells when provided at 80× MIC but did so without inducing lysis.
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164
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Cammarota G, Masucci L, Ianiro G, Bibbò S, Dinoi G, Costamagna G, Sanguinetti M, Gasbarrini A. Randomised clinical trial: faecal microbiota transplantation by colonoscopy vs. vancomycin for the treatment of recurrent Clostridium difficile infection. Aliment Pharmacol Ther 2015; 41:835-43. [PMID: 25728808 DOI: 10.1111/apt.13144] [Citation(s) in RCA: 416] [Impact Index Per Article: 46.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/06/2015] [Revised: 01/17/2015] [Accepted: 02/07/2015] [Indexed: 12/12/2022]
Abstract
BACKGROUND Faecal microbiota transplantation (FMT) from healthy donors is considered an effective treatment against recurrent Clostridium difficile infection. AIM To study the effect of FMT via colonoscopy in patients with recurrent C. difficile infection compared to the standard vancomycin regimen. METHODS In an open-label, randomised clinical trial, we assigned subjects with recurrent C. difficile infection to receive: FMT, short regimen of vancomycin (125 mg four times a day for 3 days), followed by one or more infusions of faeces via colonoscopy; or vancomycin, vancomycin 125 mg four times daily for 10 days, followed by 125-500 mg/day every 2-3 days for at least 3 weeks. The latter treatment did not include performing colonoscopy. The primary end point was the resolution of diarrhoea related to C. difficile infection 10 weeks after the end of treatments. RESULTS The study was stopped after a 1-year interim analysis. Eighteen of the 20 patients (90%) treated by FMT exhibited resolution of C. difficile-associated diarrhoea. In FMT, five of the seven patients with pseudomembranous colitis reported a resolution of diarrhoea. Resolution of C. difficile infection occurred in 5 of the 19 (26%) patients in vancomycin (P < 0.0001). No significant adverse events were observed in either of the study groups. CONCLUSIONS Faecal microbiota transplantation using colonoscopy to infuse faeces was significantly more effective than vancomycin regimen for the treatment of recurrent C. difficile infection. The delivery of donor faeces via colonoscopy has the potential to optimise the treatment strategy in patients with pseudomembranous colitis.
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Affiliation(s)
- G Cammarota
- Institute of Internal Medicine, Catholic University, Faculty of Medicine and Surgery, Rome, Italy
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165
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van Werkhoven CH, van der Tempel J, Jajou R, Thijsen SFT, Diepersloot RJA, Bonten MJM, Postma DF, Oosterheert JJ. Identification of patients at high risk for Clostridium difficile infection: development and validation of a risk prediction model in hospitalized patients treated with antibiotics. Clin Microbiol Infect 2015; 21:786.e1-8. [PMID: 25889357 DOI: 10.1016/j.cmi.2015.04.005] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2014] [Revised: 04/07/2015] [Accepted: 04/07/2015] [Indexed: 01/12/2023]
Abstract
To develop and validate a prediction model for Clostridium difficile infection (CDI) in hospitalized patients treated with systemic antibiotics, we performed a case-cohort study in a tertiary (derivation) and secondary care hospital (validation). Cases had a positive Clostridium test and were treated with systemic antibiotics before suspicion of CDI. Controls were randomly selected from hospitalized patients treated with systemic antibiotics. Potential predictors were selected from the literature. Logistic regression was used to derive the model. Discrimination and calibration of the model were tested in internal and external validation. A total of 180 cases and 330 controls were included for derivation. Age >65 years, recent hospitalization, CDI history, malignancy, chronic renal failure, use of immunosuppressants, receipt of antibiotics before admission, nonsurgical admission, admission to the intensive care unit, gastric tube feeding, treatment with cephalosporins and presence of an underlying infection were independent predictors of CDI. The area under the receiver operating characteristic curve of the model in the derivation cohort was 0.84 (95% confidence interval 0.80-0.87), and was reduced to 0.81 after internal validation. In external validation, consisting of 97 cases and 417 controls, the model area under the curve was 0.81 (95% confidence interval 0.77-0.85) and model calibration was adequate (Brier score 0.004). A simplified risk score was derived. Using a cutoff of 7 points, the positive predictive value, sensitivity and specificity were 1.0%, 72% and 73%, respectively. In conclusion, a risk prediction model was developed and validated, with good discrimination and calibration, that can be used to target preventive interventions in patients with increased risk of CDI.
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Affiliation(s)
- C H van Werkhoven
- Julius Center for Health Sciences and Primary Care, Utrecht, The Netherlands.
| | - J van der Tempel
- Department of Internal Medicine and Infectious Diseases, Utrecht, The Netherlands
| | - R Jajou
- Health Sciences, VU University Amsterdam, The Netherlands
| | - S F T Thijsen
- Department of Medical Microbiology and Immunology, Diakonessenhuis, Utrecht, The Netherlands
| | - R J A Diepersloot
- Department of Medical Microbiology and Immunology, Diakonessenhuis, Utrecht, The Netherlands
| | - M J M Bonten
- Julius Center for Health Sciences and Primary Care, Utrecht, The Netherlands; Department of Medical Microbiology, University Medical Center, Utrecht, The Netherlands
| | - D F Postma
- Julius Center for Health Sciences and Primary Care, Utrecht, The Netherlands
| | - J J Oosterheert
- Department of Internal Medicine and Infectious Diseases, Utrecht, The Netherlands
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166
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Di Bella S, Gouliouris T, Petrosillo N. Fecal microbiota transplantation (FMT) for Clostridium difficile infection: focus on immunocompromised patients. J Infect Chemother 2015; 21:230-7. [PMID: 25703532 DOI: 10.1016/j.jiac.2015.01.011] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2014] [Revised: 01/15/2015] [Accepted: 01/16/2015] [Indexed: 12/18/2022]
Abstract
Clostridium difficile infection (CDI) is an emerging problem worldwide associated with significant morbidity, mortality, recurrence rates and healthcare costs. Immunosuppressed patients, including HIV-seropositive individuals, solid organ transplant recipients, patients with malignancies, hematopoietic stem cell transplant recipients, and patients with inflammatory bowel disease are increasingly recognized as being at higher risk of developing CDI where it may be associated with significant complications, recurrence, and mortality. Fecal microbiota transplantation (FMT) has proven to be an effective and safe procedure for the treatment of recurrent or refractory CDI in immunocompetent patients by restoring the gut microbiota and resistance to further recurrences. During the last two years the first data on FMT in immunocompromised patients began to appear in the medical literature. Herein we summarize the use of FMT for the treatment of CDI with a focus on immunocompromised patients.
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Affiliation(s)
- Stefano Di Bella
- 2nd Division, National Institute for Infectious Diseases "L. Spallanzani", Rome, Italy.
| | - Theodore Gouliouris
- Department of Infectious Diseases, Cambridge University Hospitals, Cambridge, United Kingdom
| | - Nicola Petrosillo
- 2nd Division, National Institute for Infectious Diseases "L. Spallanzani", Rome, Italy
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Jump RLP, Donskey CJ. Clostridium difficile in the Long-Term Care Facility: Prevention and Management. CURRENT GERIATRICS REPORTS 2015; 4:60-69. [PMID: 25685657 PMCID: PMC4322371 DOI: 10.1007/s13670-014-0108-3] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Residents of long-term care facilities are at high risk for Clostridium difficile infection due to frequent antibiotic exposure in a population already rendered vulnerable to infection due to advanced age, multiple comorbid conditions and communal living conditions. Moreover, asymptomatic carriage of toxigenic C. difficile and recurrent infections are prevalent in this population. Here, we discuss epidemiology and management of C. difficile infection among residents of long-term care facilities. Also, recognizing that both the population and culture differs significantly from that of hospitals, we also address prevention strategies specific to LTCFs.
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Affiliation(s)
- Robin L. P. Jump
- Geriatric Research Education and Clinical Center, Cleveland
Veterans Affairs Medical Center, Cleveland, Ohio
- Division of Infectious Diseases and HIV Medicine, Department of
Medicine, Case Western, Reserve University, Cleveland, Ohio
| | - Curtis J. Donskey
- Geriatric Research Education and Clinical Center, Cleveland
Veterans Affairs Medical Center, Cleveland, Ohio
- Division of Infectious Diseases and HIV Medicine, Department of
Medicine, Case Western, Reserve University, Cleveland, Ohio
- Research Service, Cleveland Veterans Affairs Medical Center,
Cleveland, Ohio
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Abstract
IMPORTANCE Since 2000, the incidence and severity of Clostridium difficile infection (CDI) have increased. OBJECTIVE To review current evidence regarding best practices for the diagnosis and treatment of CDI in adults (age ≥ 18 years). EVIDENCE REVIEW Ovid MEDLINE and Cochrane databases were searched using keywords relevant to the diagnosis and treatment of CDI in adults. Articles published between January 1978 and October 31, 2014, were selected for inclusion based on targeted keyword searches, manual review of bibliographies, and whether the article was a guideline, systematic review, or meta-analysis published within the past 10 years. Of 4682 articles initially identified, 196 were selected for full review. Of these, the most pertinent 116 articles were included. Clinical trials, large observational studies, and more recently published articles were prioritized in the selection process. FINDINGS Laboratory testing cannot distinguish between asymptomatic colonization and symptomatic infection with C difficile. Diagnostic approaches are complex due to the availability of multiple testing strategies. Multistep algorithms using polymerase chain reaction (PCR) for the toxin gene(s) or single-step PCR on liquid stool samples have the best test performance characteristics (for multistep: sensitivity was 0.68-1.00 and specificity was 0.92-1.00; and for single step: sensitivity was 0.86-0.92 and specificity was 0.94-0.97). Vancomycin and metronidazole are first-line therapies for most patients, although treatment failures have been associated with metronidazole in severe or complicated cases of CDI. Recent data demonstrate clinical success rates of 66.3% for metronidazole vs 78.5% for vancomycin for severe CDI. Newer therapies show promising results, including fidaxomicin (similar clinical cure rates to vancomycin, with lower recurrence rates for fidaxomicin, 15.4% vs vancomycin, 25.3%; P = .005) and fecal microbiota transplantation (response rates of 83%-94% for recurrent CDI). CONCLUSIONS AND RELEVANCE Diagnostic testing for CDI should be performed only in symptomatic patients. Treatment strategies should be based on disease severity, history of prior CDI, and the individual patient's risk of recurrence. Vancomycin is the treatment of choice for severe or complicated CDI, with or without adjunctive therapies. Metronidazole is appropriate for mild disease. Fidaxomicin is a therapeutic option for patients with recurrent CDI or a high risk of recurrence. Fecal microbiota transplantation is associated with symptom resolution of recurrent CDI but its role in primary and severe CDI is not established.
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Affiliation(s)
- Natasha Bagdasarian
- Division of Infectious Disease and Department of Infection Control, St John Hospital and Medical Center, Detroit, Michigan
- Wayne State University, Department of Internal Medicine, Detroit, Michigan
| | - Krishna Rao
- University of Michigan Medical School, Department of Internal Medicine, Division of Infectious Diseases, University of Michigan Health System, Ann Arbor, Michigan
- Veterans Affairs Ann Arbor Healthcare System, Ann Arbor, Michigan
| | - Preeti N. Malani
- University of Michigan Medical School, Department of Internal Medicine, Division of Infectious Diseases, University of Michigan Health System, Ann Arbor, Michigan
- Veterans Affairs Ann Arbor Healthcare System, Ann Arbor, Michigan
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169
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McCoy RM, Klick A, Hill S, Dull RB. Luminal Toxin-Binding Agents for Clostridium difficile Infection. J Pharm Pract 2015; 29:361-7. [PMID: 25613056 DOI: 10.1177/0897190014566315] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
OBJECTIVE To systematically search the literature for trials evaluating luminal toxin-binding agents (LTBAs) for Clostridium difficile infection (CDI). METHODS A systematic search was conducted utilizing PubMed and International Pharmaceutical Abstracts with the following terms: anion-exchange resins, C difficile, cholestyramine, tolevamer, and colestipol. Articles were included if published in the English language and reported clinical outcomes of more than 5 adult humans with CDI treated with LTBAs. RESULTS Nearly all clinical trials evaluated LTBA as monotherapy for CDI and LTBAs are inferior to standard therapy. In contemporary practice, LTBAs are employed as adjunctive or sequential therapy for which there is a paucity of data. Some data suggest potential efficacy for recurrent CDI. Current guidelines for CDI assert LTBAs are contraindicated due to drug-drug interactions with vancomycin. However, the impact of this interaction on clinical outcomes has not been evaluated, and it is unknown whether higher doses of vancomycin or separating the administration of LTBAs from vancomycin would mitigate this interaction. CONCLUSION LTBA monotherapy is inferior to vancomycin and metronidazole for CDI. Some data indicate possible benefit in reducing recurrent CDI, but outcomes with adjunctive and/or sequential LTBAs are unavailable. Further studies are needed to investigate the role of LTBAs for CDI.
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Affiliation(s)
- Ryan M McCoy
- Creighton University School of Pharmacy and Health Professions, Omaha, NE, USA
| | - Andrew Klick
- Creighton University School of Pharmacy and Health Professions, Omaha, NE, USA
| | - Steven Hill
- Ross University School of Medicine and School of Veterinary Medicine, Roseau, Commonwealth of Dominica, West Indies
| | - Ryan B Dull
- Creighton University School of Pharmacy and Health Professions, Omaha, NE, USA
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170
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Abstract
Background Fidaxomicin has been scrutinized because of its high acquisition cost. Real-world experience is needed to determine whether fidaxomicin has value in patients with Clostridium difficile–associated diarrhea (CDAD) and certain risk factors. Methods In this single-center, retrospective cohort study, patients 18 years or older with diarrheal symptoms and positive polymerase chain reaction assay for C. difficile toxin B gene or pseudomembranes were administered fidaxomicin between August 2011 and March 2013. Clinical success was defined as the resolution of signs and symptoms of disease and no further therapy required for CDAD as of the second day after cessation of fidaxomicin therapy. The recurrence of CDAD was defined by the reappearance of signs and symptoms of disease after the cessation of therapy, a new positive C. difficile polymerase chain reaction result, and the need for CDAD retreatment. Readmissions were tracked for 90 days after hospital discharge. Results Of the 60 patients who received fidaxomicin, 58 (96.7%) achieved clinical success. Twenty-six (43.3%) of the 60 patients were being treated for a second or greater episode. Six (10.3%) of the 58 patients had recurrence within 90 days after the initial treatment course, and 4 (6.9%) were readmitted within 30 days after hospital discharge. Conclusions In this real-world setting, fidaxomicin resulted in a high rate of clinical success, a low rate of recurrence, and a low readmission rate.
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Abstract
PURPOSE OF REVIEW Clostridium difficile infection (CDI) ranges from asymptomatic colonization to severe colitis and death. The physiologic and molecular mechanisms determining disease outcome are thus far poorly understood. Here, we review recent advances in the relationship between host response to infection and disease outcome. Furthermore, we review recent studies on the relationship between intestinal microbial ecology and pathogenesis of CDI. RECENT FINDINGS Severe CDI is characterized by toxin-induced epithelial injury and marked intestinal inflammation. Recent studies demonstrate that systemic markers of inflammation correlate with disease outcome. Peripheral neutrophil count, C-reactive protein, and proinflammatory cytokines are elevated in patients with severe disease as compared with asymptomatic controls. Furthermore, fecal inflammatory biomarkers are better predictors of disease severity and diarrhea persistence than C. difficile abundance. A landmark study reported higher than 80% success rate of fecal microbiota transplantation for treatment of recurrent CDI. The commensal microbes responsible for C. difficile protection, and the molecular basis by which microbial ecology impacts disease outcome, are under active investigation. SUMMARY Under conditions of altered microbial ecology, C. difficile incites epithelial injury and marked intestinal inflammation, the primary determinant of disease outcome. Restoration of a diverse intestinal microbial population by fecal microbiota transplantation attenuates disease and prevents recurrence by mechanisms that are yet to be fully elucidated.
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172
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Ivarsson ME, Leroux JC, Castagner B. Investigational new treatments for Clostridium difficile infection. Drug Discov Today 2014; 20:602-8. [PMID: 25499664 DOI: 10.1016/j.drudis.2014.12.003] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2014] [Revised: 11/20/2014] [Accepted: 12/02/2014] [Indexed: 12/21/2022]
Abstract
Significant progress has been made by industry and academia in the past two years to address the medical threats posed by Clostridium difficile infection. These developments provide an excellent example of how patient need has driven a surge of innovation in drug discovery. Indeed, only two drugs were approved for the infection in the past 30 years but there are 13 treatment candidates in clinical trials today. What makes the latter number even more remarkable is the diversity in the strategies represented (antibiotics, microbiota supplements, vaccines, antibiotic quenchers and passive immunization). In this review, we provide a snapshot of the current stage of these breakthroughs and argue that there is still room for further innovation in treating C. difficile infection.
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Affiliation(s)
- Mattias E Ivarsson
- Institute of Pharmaceutical Sciences, Swiss Federal Institute of Technology (ETH Zurich), Vladimir-Prelog-Weg 1-5/10, 8093 Zurich, Switzerland
| | - Jean-Christophe Leroux
- Institute of Pharmaceutical Sciences, Swiss Federal Institute of Technology (ETH Zurich), Vladimir-Prelog-Weg 1-5/10, 8093 Zurich, Switzerland
| | - Bastien Castagner
- Department of Pharmacology and Therapeutics, McGill University, 3655 Promenade Sir-William-Osler, H3G1Y6 Montreal, Quebec, Canada.
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173
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DuPont HL. Challenges and opportunities in the management of Clostridium difficile infection. Expert Rev Gastroenterol Hepatol 2014; 8:863-74. [PMID: 25012255 DOI: 10.1586/17474124.2014.939630] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Clostridium difficile infection (CDI) is increasing in all regions of the world where sought. There is no gold standard for diagnosis of CDI, with available tests having limitations. Prevention of CDI will be seen with antibiotic stewardship, improved disinfection of hospitals and nursing homes, chemo- and immuno-prophylaxis and next generation probiotics. The important therapeutic agents are oral vancomycin and fidaxomicin with metronidazole being used only in mild cases or when oral therapy cannot be given. Current therapy of CDI for 10 days is associated with high rate of recurrence that may be prevented by prolonging initial therapy. Future treatment strategies will focus on drugs that inhibit C. difficile, reduce toxin activity and inflammation in the gut, and improve colonic flora diversity.
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Affiliation(s)
- Herbert L DuPont
- University of Texas School of Public Health, Baylor St. Luke's Medical Center, Baylor College of Medicine, Kelsey Research Foundation, 1200 Herman Pressler St., Suite 733, Houston, TX 77030, USA
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174
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Pulsed faecal microbiota transplantation for recalcitrant recurrent Clostridium difficile infection. Clin Microbiol Infect 2014; 21:e23-4. [PMID: 25658573 DOI: 10.1016/j.cmi.2014.10.005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2014] [Revised: 09/28/2014] [Accepted: 10/03/2014] [Indexed: 11/23/2022]
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175
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Risk factors of Clostridium difficile infections among patients in a university hospital in Shanghai, China. Anaerobe 2014; 30:65-9. [PMID: 25219941 DOI: 10.1016/j.anaerobe.2014.08.015] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2014] [Revised: 08/26/2014] [Accepted: 08/29/2014] [Indexed: 01/03/2023]
Abstract
Clostridium difficile infection (CDI) is an increasing concern in China. However, the risk factors of CDI are rarely reported in the Chinese population. A prospective observational study was therefore conducted among patients with hospital-acquired C. difficile diarrhoea and the risk factors of CDI in a retrospective case-control study. The CDI patients were compared with the non-CDI diarrhoeal patients and those without diarrhoea, respectively. The recurrent CDI patients were compared with the corresponding non-recurrent CDI patients and those without diarrhoea, respectively. Overall, of the 240 patients with hospital-acquired diarrhoea 90 (37.5%) were diagnosed as CDI, and 12 (13.3%) of the 90 CDI patients experienced recurrence. Multivariate analysis indicated that renal disease, malignancy, hypoalbuminemia, prior antibiotic treatment, chemotherapy, nasogastric tube use, length of stay>14 days and intra-abdominal surgery, defined daily dose of antimicrobial agents≥19, prior use of more than three antimicrobial agents, and use of carbapenems were independent risk factors for the first episode of CDI. Use of laxatives, the first- and second-generation narrow-spectrum cephalosporins or metronidazole was identified as protective factors. It is necessary to make testing of C. difficile available as a routine practice and control these risk factors in Chinese hospitals to avoid CDI outbreaks.
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176
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Cornely OA, Nathwani D, Ivanescu C, Odufowora-Sita O, Retsa P, Odeyemi IAO. Clinical efficacy of fidaxomicin compared with vancomycin and metronidazole in Clostridium difficile infections: a meta-analysis and indirect treatment comparison. J Antimicrob Chemother 2014; 69:2892-900. [PMID: 25074856 DOI: 10.1093/jac/dku261] [Citation(s) in RCA: 72] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
OBJECTIVES To evaluate the efficacy of fidaxomicin treatment, which has a limited effect on the normal gut flora, compared with vancomycin and metronidazole treatment in Clostridium difficile infections (CDIs). METHODS A systematic literature review was conducted in July to August 2011 and updated in July 2013. For fidaxomicin versus vancomycin, efficacy was evaluated using meta-analysis of data from two Phase III direct comparative studies (n = 1164). As there were no studies comparing fidaxomicin and metronidazole, an indirect comparison was made using data from three vancomycin versus metronidazole studies (n = 345), using the methodology of Bucher et al. (J Clin Epidemiol 1997; 50: 683-91). This provides an OR for the indirect comparison of fidaxomicin versus metronidazole when direct evidence of fidaxomicin versus vancomycin and vancomycin versus metronidazole is available. RESULTS Clinical cure rates were similar for fidaxomicin and vancomycin; the OR (95% CI) was 1.17 (0.82, 1.66). Recurrence [0.47 (0.34, 0.65)] was significantly lower and sustained cure rates [1.75 (1.35, 2.27)] significantly higher for fidaxomicin than vancomycin. Similar results were obtained in patient subgroups with severe CDI and with non-severe CDI. From the indirect comparison, the likelihood of recurrence [0.42 (0.18, 0.96)] and sustained cure [2.55 (1.44, 4.51)] were significantly improved for fidaxomicin versus metronidazole. Again, similar results were obtained in those with severe and non-severe CDI. CONCLUSIONS Fidaxomicin provides improved sustained cure rates in patients with CDI compared with vancomycin. An indirect comparison indicates that the same is also true for fidaxomicin versus metronidazole. In view of these data, fidaxomicin may be considered as first-line therapy for CDI.
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Affiliation(s)
- Oliver A Cornely
- Department of Internal Medicine, Clinical Trials Centre Cologne, ZKS Köln, BMBF 01KN1106, Cologne Excellence Cluster on Cellular Stress Responses in Aging-Associated Diseases (CECAD), University of Cologne, 50924 Cologne, Germany
| | | | - Cristina Ivanescu
- Quintiles Consulting, Siriusdreef 10, 2132 WT Hoofddorp, The Netherlands
| | | | - Peny Retsa
- Astellas Pharma Europe Ltd, 2000 Hillswood Drive, Chertsey, Surrey KT16 0RS, UK
| | - Isaac A O Odeyemi
- Astellas Pharma Europe Ltd, 2000 Hillswood Drive, Chertsey, Surrey KT16 0RS, UK
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177
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Mergenhagen KA, Wojciechowski AL, Paladino JA. A review of the economics of treating Clostridium difficile infection. PHARMACOECONOMICS 2014; 32:639-50. [PMID: 24807468 DOI: 10.1007/s40273-014-0161-y] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
Clostridium difficile infection (CDI) is a costly result of antibiotic use, responsible for an estimated 14,000 deaths annually in the USA according to the Centers for Disease Control and Prevention. Annual costs attributable to CDI are in excess of $US 1 billion. This review summarizes appropriate utilization of prevention and treatment methods for CDI that have the potential to reduce the economic and humanistic costs of the disease. Some cost-effective strategies to prevent CDI include screening and isolation of hospital admissions based on C. difficile carriage to reduce transmission in the inpatient setting, and probiotics, which are potentially efficacious in preventing CDI in the appropriate patient population. The most extensively studied agents for treatment of CDI are metronidazole, vancomycin, and fidaxomicin. Most economic comparisons between metronidazole and vancomycin favor vancomycin, especially with the emergence of metronidazole-resistant C. difficile strains. Metronidazole can only be recommended for mild disease. Moderate to severe CDI should be treated with vancomycin, preferably the compounded oral solution, which provides the most cost-effective therapeutic option. Fidaxomicin offers a clinically effective and potentially cost-effective alternative for treating moderate CDI in patients who do not have the NAP1/BI/027 strain of C. difficile. Probiotics and fecal microbiota transplant have variable efficacy and the US FDA does not currently regulate the content; the potential economic advantages of these treatment modalities are currently unknown.
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Affiliation(s)
- Kari A Mergenhagen
- Veterans Affairs Western New York Healthcare System, 3495 Bailey Avenue, Buffalo, NY, 14215, USA,
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178
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Youngster I, Sauk J, Pindar C, Wilson RG, Kaplan JL, Smith MB, Alm EJ, Gevers D, Russell GH, Hohmann EL. Fecal microbiota transplant for relapsing Clostridium difficile infection using a frozen inoculum from unrelated donors: a randomized, open-label, controlled pilot study. Clin Infect Dis 2014; 58:1515-22. [PMID: 24762631 DOI: 10.1093/cid/ciu135] [Citation(s) in RCA: 327] [Impact Index Per Article: 32.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
BACKGROUND Recurrent Clostridium difficile infection (CDI) with poor response to standard antimicrobial therapy is a growing medical concern. We aimed to investigate the outcomes of fecal microbiota transplant (FMT) for relapsing CDI using a frozen suspension from unrelated donors, comparing colonoscopic and nasogastric tube (NGT) administration. METHODS Healthy volunteer donors were screened and a frozen fecal suspension was generated. Patients with relapsing/refractory CDI were randomized to receive an infusion of donor stools by colonoscopy or NGT. The primary endpoint was clinical resolution of diarrhea without relapse after 8 weeks. The secondary endpoint was self-reported health score using standardized questionnaires. RESULTS A total of 20 patients were enrolled, 10 in each treatment arm. Patients had a median of 4 (range, 2-16) relapses prior to study enrollment, with 5 (range, 3-15) antibiotic treatment failures. Resolution of diarrhea was achieved in 14 patients (70%) after a single FMT (8 of 10 in the colonoscopy group and 6 of 10 in the NGT group). Five patients were retreated, with 4 obtaining cure, resulting in an overall cure rate of 90%. Daily number of bowel movements changed from a median of 7 (interquartile range [IQR], 5-10) the day prior to FMT to 2 (IQR, 1-2) after the infusion. Self-ranked health score improved significantly, from a median of 4 (IQR, 2-6) before transplant to 8 (IQR, 5-9) after transplant. No serious or unexpected adverse events occurred. CONCLUSIONS In our initial feasibility study, FMT using a frozen inoculum from unrelated donors is effective in treating relapsing CDI. NGT administration appears to be as effective as colonoscopic administration. CLINICAL TRIALS REGISTRATION NCT01704937.
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Affiliation(s)
- Ilan Youngster
- Division of Infectious Diseases, Massachusetts General Hospital
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179
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D'Agostino RB, Collins SH, Pencina KM, Kean Y, Gorbach S. Risk Estimation for Recurrent Clostridium difficile Infection Based on Clinical Factors. Clin Infect Dis 2014; 58:1386-93. [DOI: 10.1093/cid/ciu107] [Citation(s) in RCA: 56] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
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181
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Avery L, Hasan M. Fecal Bacteriotherapy for Clostridium difficile Infections — Its Time Has Come. ACTA ACUST UNITED AC 2013. [DOI: 10.1016/j.clinmicnews.2013.07.002] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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Pant C, Deshpande A, Altaf MA, Minocha A, Sferra TJ. Clostridium difficile infection in children: a comprehensive review. Curr Med Res Opin 2013; 29:967-84. [PMID: 23659563 DOI: 10.1185/03007995.2013.803058] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
OBJECTIVE To provide a comprehensive review of the literature relating to Clostridium difficile (C. difficile) infection (CDI) in the pediatric population. METHODS Two investigators conducted independent searches of PubMed, Web of Science, and Scopus until March 31st, 2013. All databases were searched using the terms 'Clostridium difficile infection', 'Clostridium difficile associated diarrhea' 'antibiotic associated diarrhea', 'C. difficile', in combination with 'pediatric' and 'paediatric'. Articles which discussed pediatric CDI were reviewed and relevant cross references also read and evaluated for inclusion. Selection bias could be a possible limitation of this approach. FINDINGS There is strong evidence for an increased incidence of pediatric CDI. Increasingly, the infection is being acquired from the community, often without a preceding history of antibiotic use. The severity of the disease has remained unchanged. Several medical conditions may be associated with the development of pediatric CDI. Infection prevention and control with antimicrobial stewardship are of paramount importance. It is important to consider the age of the child while testing for CDI. Traditional therapy with metronidazole or vancomycin remains the mainstay of treatment. Newer antibiotics such as fidaxomicin appear promising especially for the treatment of recurrent infection. Conservative surgical options may be a life-saving measure in severe or fulminant cases. CONCLUSIONS Pediatric providers should be cognizant of the increased incidence of CDI in children. Early and judicious testing coupled with the timely institution of therapy will help to secure better outcomes for this disease.
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Affiliation(s)
- Chaitanya Pant
- Department of Pediatrics, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
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184
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Does Empirical Clostridium difficile Infection (CDI) Therapy Result in False-Negative CDI Diagnostic Test Results? Clin Infect Dis 2013; 57:494-500. [DOI: 10.1093/cid/cit286] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
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185
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Analysis of anti-Clostridium difficile activity of thuricin CD, vancomycin, metronidazole, ramoplanin, and actagardine, both singly and in paired combinations. Antimicrob Agents Chemother 2013; 57:2882-6. [PMID: 23571539 DOI: 10.1128/aac.00261-13] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Due to the ongoing problem of recurrence of Clostridium difficile-associated diarrhea following antibiotic treatment, there is an urgent need for alternative treatment options. We assessed the MICs of five antimicrobials singly and in combinations against a range of C. difficile clinical isolates. Ramoplanin-actagardine combinations were particularly effective, with partial synergistic/additive effects observed against 61.5% of C. difficile strains tested.
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186
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El Feghaly RE, Tarr PI. Editorial Commentary: Clostridium difficile in Children: Colonization and Consequences. Clin Infect Dis 2013; 57:9-12. [DOI: 10.1093/cid/cit160] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
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187
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El Feghaly RE, Stauber JL, Deych E, Gonzalez C, Tarr PI, Haslam DB. Markers of intestinal inflammation, not bacterial burden, correlate with clinical outcomes in Clostridium difficile infection. Clin Infect Dis 2013; 56:1713-21. [PMID: 23487367 DOI: 10.1093/cid/cit147] [Citation(s) in RCA: 132] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND Clostridium difficile is a leading hospital-acquired infection. Many patients remain symptomatic for several days on appropriate antibiotic therapy. To assess the contribution of ongoing infection vs persistent inflammation, we examined the correlation between fecal cytokine levels, fecal C. difficile burden, and disease outcomes in C. difficile infection (CDI). METHODS We conducted a prospective cohort study in Barnes Jewish Hospital between June 2011 and May 2012 of hospitalized adults with CDI. We determined fecal interleukin 8 (IL-8) and lactoferrin protein concentrations by enzyme immunoassay. We used real-time polymerase chain reaction (PCR) to measure relative fecal IL-8 and CXCL-5 RNA transcript abundances, and quantitative PCR to enumerate C. difficile burden. RESULTS Of 120 study subjects, 101 (84%) were started on metronidazole, and 33 of those (33%) were subsequently given vancomycin. Sixty-two (52%) patients had diarrhea persistent for 5 or more days after starting CDI therapy. Initial fecal CXCL-5 messenger RNA (mRNA), IL-8 mRNA, and IL-8 protein correlated with persistent diarrhea and use of vancomycin. Time to diarrhea resolution was longer in patients with elevated fecal cytokines at diagnosis. Fecal cytokines were more sensitive than clinical severity scores in identifying patients at risk of treatment failure. Clostridium difficile burden did not correlate with any measure of illness or outcome at any point, and decreased equally with metronidazole and vancomycin. CONCLUSIONS Persistent diarrhea in CDI correlates with intestinal inflammation and not fecal pathogen burden. These findings suggest that modulation of host response, rather than adjustments to antimicrobial regimens, might be a more effective approach to patients with unremitting disease.
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Affiliation(s)
- Rana E El Feghaly
- Department of Pediatrics, Washington University School of Medicine, St Louis, MO 63110, USA
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188
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Nagy GG, Várvölgyi C, Balogh Z, Orosi P, Paragh G. [Detailed methodological recommendations for the treatment of Clostridium difficile-associated diarrhea with faecal transplantation]. Orv Hetil 2013; 154:10-9. [PMID: 23274229 DOI: 10.1556/oh.2013.29514] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
The incidence of Clostridium difficile associated enteral disease shows dramatic increase worldwide, with appallingly high treatment costs, mortality figures, recurrence rates and treatment refractoriness. It is not surprising, that there is significant interest in the development and introduction of alternative therapeutic strategies. Among these only stool transplantation (or faecal bacteriotherapy) is gaining international acceptance due to its excellent cure rate (≈92%), low recurrence rate (≈6%), safety and cost-effectiveness. Unfortunately faecal transplantation is not available for most patients, although based on promising international results, its introduction into the routine clinical practice is well justified and widely expected. The authors would like to facilitate this process, by presenting a detailed faecal transplantation protocol prepared in their Institution based on the available literature and clinical rationality. Officially accepted national methodological guidelines will need to be issued in the future, founded on the expert opinion of relevant professional societies and upcoming advances in this field.
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Affiliation(s)
- Gergely György Nagy
- Debreceni Egyetem, Orvos- és Egészségtudományi Centrum Belgyógyászati Intézet, Intenzív Terápiás Osztály Debrecen Nagyerdei.
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189
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Smeltzer S, Hassoun A. Successful use of fidaxomicin in recurrent Clostridium difficile infection in a child. J Antimicrob Chemother 2013; 68:1688-9. [DOI: 10.1093/jac/dkt079] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
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190
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Rashid MU, Lozano HM, Weintraub A, Nord CE. In vitro activity of cadazolid against Clostridium difficile strains isolated from primary and recurrent infections in Stockholm, Sweden. Anaerobe 2013; 20:32-5. [PMID: 23454525 DOI: 10.1016/j.anaerobe.2013.02.003] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2012] [Revised: 02/12/2013] [Accepted: 02/19/2013] [Indexed: 02/08/2023]
Abstract
One hundred thirty-three Clostridium difficile strains were collected from 71 patients and analyzed for the presence of C. difficile toxin B by the cell cytotoxicity neutralization assay, genes for toxin A, toxin B, binary toxin and TcdC deletion by PCR. All strains were also PCR-ribotyped and analyzed for sporulation frequency. The MICs of the isolates were determined against cadazolid and seven other antimicrobial agents by the agar dilution method. All isolates were positive for toxin B by the cell cytotoxicity neutralization assay. One hundred fourteen isolates were positive for toxin A and B and 16 isolates were positive for toxin A, toxin B and binary toxin by PCR. Three isolates were negative for toxin A but positive for toxin B. Thirty-three different ribotypes were identified. No strain of ribotype 027 was found. No differences in sporulation were noticed between the primary and recurrent isolates. All 133 isolates were sensitive to cadazolid (0.064-0.5 mg/l), fidaxomicin (0.008-0.125 mg/l), metronidazole (0.125-2 mg/l), vancomycin (0.125-1 mg/l) and tigecycline (0.032-0.25 mg/l). Three isolates were resistant to linezolid (8 mg/l), 15 isolates were resistant to moxifloxacin (8-32 mg/l) and 103 isolates were resistant to clindamycin (8-256 mg/l). No association between toxins A, B and binary toxin, ribotypes or the sporulation and the sensitivity to cadazolid could be found. Cadazolid has a potent in vitro activity against C. difficile.
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Affiliation(s)
- Mamun-Ur Rashid
- Department of Laboratory Medicine, Karolinska University Hospital, Karolinska Institutet, SE-141 86 Stockholm, Sweden
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191
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Howerton A, Patra M, Abel-Santos E. A new strategy for the prevention of Clostridium difficile infection. J Infect Dis 2013; 207:1498-504. [PMID: 23420906 DOI: 10.1093/infdis/jit068] [Citation(s) in RCA: 67] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
BACKGROUND Clostridium difficile infection (CDI) is a leading cause of antibiotic-associated diarrhea. The infective form of C. difficile is the spore, but the vegetative bacterium causes the disease. Because C. difficile spore germination is required for symptomatic infection, antigermination approaches could lead to the prevention of CDI. We recently reported that CamSA, a bile salt analog, inhibits C. difficile spore germination in vitro. METHODS Mice infected with massive inocula of C. difficile spores were treated with different concentrations of CamSA and monitored for CDI signs. C. difficile spore and vegetative cells were counted in feces from infected mice. RESULTS A single 50-mg/kg dose of CamSA prevented CDI in mice without any observable toxicity. Lower CamSA doses resulted in delayed CDI onset and less severe signs of disease. Ingested C. difficile spores were quantitatively recovered from feces of CamSA-protected mice. CONCLUSIONS Our results support a mechanism whereby the antigermination effect of CamSA is responsible for preventing CDI signs. This approach represents a new paradigm in CDI treatment. Instead of further compromising the microbiota of CDI patients with strong antibiotics, antigermination therapy could serve as a microbiota surrogate to curtail C. difficile colonization of antibiotic-treated patients.
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Affiliation(s)
- Amber Howerton
- Department of Chemistry, University of Nevada, Las Vegas, NV 89154, USA
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192
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Kleger A, Schnell J, Essig A, Wagner M, Bommer M, Seufferlein T, Härter G. Fecal transplant in refractory Clostridium difficile colitis. DEUTSCHES ARZTEBLATT INTERNATIONAL 2013; 110:108-15. [PMID: 23468820 DOI: 10.3238/arztebl.2013.0108] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/18/2012] [Accepted: 11/27/2012] [Indexed: 12/12/2022]
Abstract
BACKGROUND Clostridium difficile infections are becoming more common, more severe, and more likely to recur. Conventional treatment with antibiotics often fails to eradicate the infection; even when it succeeds, recurrent infection is common. Complementary treatment with probiotic agents to reconstitute the physiological intestinal flora does not yield any consistent benefit. In recent years, fecal transplantation has been used in the English-speaking countries with cure rates of about 87%, but the available evidence is limited to large case series. No randomized controlled trials have been performed. We present the case of a 73-year-old woman with intractable, recurrent enterocolitis due to Clostridium difficile who was successfully treated with fecal transplantation via colonoscopy. CASE DESCRIPTION Upon the completion of antibiotic treatment for a second recurrence of enterocolitis, stool in liquid suspension was introduced into the patient's colon through a colonoscope. Prior testing had shown the stool donor to be free of acute infection or stool pathogens. The patient was given loperamide to prolong contact of the stool transplant with the colonic mucosa. She was also treated with Saccharomyces cerevisiae for four weeks. COURSE There was no clinical or microbiological evidence of a further recurrence of enterocolitis for 6 months after transplantation. Stool transplantation had no adverse effects. CONCLUSION This patient had a lasting remission of enterocolitis due to Clostridium difficile after the treatment described above. Fecal transplantation seems to be a safe and highly effective treatment for recurrent Clostridium difficile infection. It is unclear whether the administration of Saccharomyces cerevisiae confers any additional benefit.
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Affiliation(s)
- Alexander Kleger
- Ulm University Hospital Medical Center, Department of Internal Medicine I, Germany
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193
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Khanna S, Baddour LM, Huskins WC, Kammer PP, Faubion WA, Zinsmeister AR, Harmsen WS, Pardi DS. The epidemiology of Clostridium difficile infection in children: a population-based study. Clin Infect Dis 2013; 56:1401-6. [PMID: 23408679 DOI: 10.1093/cid/cit075] [Citation(s) in RCA: 163] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND The incidence of Clostridium difficile infection (CDI) is increasing, even in populations previously thought to be at low risk, including children. Most incidence studies have included only hospitalized patients and are thus potentially influenced by referral or hospitalization biases. METHODS We performed a population-based study of CDI in pediatric residents (aged 0-18 years) of Olmsted County, Minnesota, from 1991 through 2009 to assess the incidence, severity, treatment response, and outcomes of CDI. RESULTS We identified 92 patients with CDI, with a median age of 2.3 years (range, 1 month-17.6 years). The majority of cases (75%) were community-acquired. The overall age- and sex-adjusted CDI incidence was 13.8 per 100 000 persons, which increased 12.5-fold, from 2.6 (1991-1997) to 32.6 per 100 000 (2004-2009), over the study period (P < .0001). The incidence of community-acquired CDI was 10.3 per 100 000 persons and increased 10.5-fold, from 2.2 (1991-1997) to 23.4 per 100 000 (2004-2009) (P < .0001). Severe, severe-complicated, and recurrent CDI occurred in 9%, 3%, and 20% of patients, respectively. The initial treatment in 82% of patients was metronidazole, and 18% experienced treatment failure. In contrast, the initial treatment in 8% of patients was vancomycin and none of them failed therapy. CONCLUSIONS In this population-based cohort, CDI incidence in children increased significantly from 1991 through 2009. Given that the majority of cases were community-acquired, estimates of the incidence of CDI that include only hospitalized children may significantly underestimate the burden of disease in children.
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Affiliation(s)
- Sahil Khanna
- Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, MN 55905, USA.
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194
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Erb W, Zhu J. From natural product to marketed drug: the tiacumicin odyssey. Nat Prod Rep 2013; 30:161-74. [DOI: 10.1039/c2np20080e] [Citation(s) in RCA: 64] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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195
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Nagy GG, Várvölgyi C, Paragh G. Successful treatment of life-threatening, treatment resistant Clostridium difficile infection associated pseudomembranous colitis with faecal transplantation. Orv Hetil 2012; 153:2077-83. [DOI: 10.1556/oh.2012.29509] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Due to world-wide spread of hypervirulent and antibiotic resistant Clostridium difficile strains, the incidence of these infections are dramatically increasing in Hungary with appalling mortality and recurrence rates. Authors present a case of a 59-year-old patient who developed a severe, relapsing pseudomembranous colitis after antibiotic treatment. Life-threatening symptoms of fulminant colitis were successfully treated with prolonged administration of metronidazole and vancomycin, careful supportive therapy and weeks of intensive care. However, a well-documented, severe relapse developed within a week and this time faecal bacteriotherapy was performed. This treatment resulted in a complete cure without any further antibiotic treatment. In relation to this life-saving faecal transplantation, methodology and indications are briefly discussed. In addition, microbiological issues, epidemiological data and threats associated with antibiotic treatment of Clostridium difficile infections are also covered. Finally, relevant professional societies are urged to prepare a national protocol for faecal transplantation, which could allow introduction of this valuable, cost-effective procedure into the routine clinical practice. Orv. Hetil., 2012, 153, 2077–2083.
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Affiliation(s)
- Gergely György Nagy
- Debreceni Egyetem, Orvos- és Egészségtudományi Centrum Belgyógyászati Intézet, Intenzív Terápiás Osztály Debrecen Nagyerdei krt. 98. 4032
| | - Csaba Várvölgyi
- Debreceni Egyetem, Orvos- és Egészségtudományi Centrum Belgyógyászati Intézet, Intenzív Terápiás Osztály Debrecen Nagyerdei krt. 98. 4032
| | - György Paragh
- Debreceni Egyetem, Orvos- és Egészségtudományi Centrum Belgyógyászati Intézet, Intenzív Terápiás Osztály Debrecen Nagyerdei krt. 98. 4032
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196
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Affiliation(s)
- Neerav M Joshi
- Centre for Digestive Diseases, Blizard Institute of Cell & Molecular Science, Barts & the London School of Medicine & Dentistry, Queen Mary, University of London
| | - Lucia Macken
- Centre for Digestive Diseases, Blizard Institute of Cell & Molecular Science, Barts & the London School of Medicine & Dentistry, Queen Mary, University of London
| | - David S Rampton
- Centre for Digestive Diseases, Blizard Institute of Cell & Molecular Science, Barts & the London School of Medicine & Dentistry, Queen Mary, University of London
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197
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Refractory Clostridium difficile Infection Successfully Treated with Tigecycline, Rifaximin, and Vancomycin. Case Rep Med 2012; 2012:702910. [PMID: 22829841 PMCID: PMC3399506 DOI: 10.1155/2012/702910] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2012] [Accepted: 06/19/2012] [Indexed: 11/17/2022] Open
Abstract
The occurrence of Clostridium difficile colitis is on the rise and has become more difficult to manage with standard therapy. Thus, the need for alternative treatments is essential. Tigecycline is a glycylcycline antibiotic that has been shown to be effective against C. difficile through several published case reports and in in vitro studies. We present a case of C. difficile colitis that failed to respond to metronidazole and oral vancomycin therapy, but improved on a combination of rifaximin, tigecycline, and vancomycin.
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198
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Mavros MN, Alexiou VG, Vardakas KZ, Tsokali K, Sardi TA, Falagas ME. Underestimation of Clostridium difficile infection among clinicians: an international survey. Eur J Clin Microbiol Infect Dis 2012; 31:2439-44. [PMID: 22450740 DOI: 10.1007/s10096-012-1587-9] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2012] [Accepted: 02/09/2012] [Indexed: 12/18/2022]
Abstract
The objective of this investigation was to document clinicians' awareness regarding the incidence and severity of Clostridium difficile-associated diarrhea (CDAD). An international electronic survey was conducted among corresponding authors of articles indexed by PubMed and published during the last 10 years in 'Core Clinical Journals'. A total of 1,163 clinicians answered (response rate 59%); most of the responses were submitted from North America (54.6%), Europe (32.2%), and Asia/Pacific (11.6%). Only 2.2% of the participants answered correctly all four questions, while 14.1% answered all questions incorrectly. Regarding each question, 10.8% of the participants correctly estimated current CDAD treatment failure or recurrence rates to be around 40%, 33.4% correctly estimated the ratio of antibiotic-associated colitis attributed to C. difficile to be around 60%, 72.7% correctly responded that almost all antibiotics are associated with CDAD, and 41.7% correctly responded that any patient is at risk for CDAD. Almost half (44.4%) of the respondents considered CDAD to be underestimated. Participants from North America scored higher than those from Europe or Asia/Pacific (p < 0.001). Participants considering CDAD to be overestimated (3.4%) had the lowest mean score of correct answers. Among a clinically diverse international sample of physicians with academic expertise, there was an inadequate level of awareness of the magnitude and clinical importance of CDAD.
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Affiliation(s)
- M N Mavros
- Alfa Institute of Biomedical Sciences (AIBS), 9 Neapoleos Street, 151 23, Marousi, Athens, Greece
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