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Ehrhard S, Herren L, Ricklin ME, Suter-Riniker F, Exadaktylos AK, Hautz W, Müller M, Jent P. Do all Emergency Room Patients With Influenza-like Symptoms Need Blood Cultures? A Retrospective Cohort Study of 2 Annual Influenza Seasons. Open Forum Infect Dis 2024; 11:ofae242. [PMID: 38770207 PMCID: PMC11103619 DOI: 10.1093/ofid/ofae242] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2023] [Accepted: 04/28/2024] [Indexed: 05/22/2024] Open
Abstract
In this retrospective cohort study, we evaluated risk factors for bacteremia in emergency department patients presenting with influenza-like symptoms during influenza epidemic seasons. In patients without fever, chronic heart or chronic liver disease, blood culture collection might be omitted.
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Affiliation(s)
- Simone Ehrhard
- Department of Emergency Medicine, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Lukas Herren
- Department of Emergency Medicine, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Meret E Ricklin
- Department of Emergency Medicine, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | | | - Aristomenis K Exadaktylos
- Department of Emergency Medicine, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Wolf Hautz
- Department of Emergency Medicine, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Martin Müller
- Department of Emergency Medicine, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Philipp Jent
- Department of Infectious Diseases, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
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Banholzer N, Jent P, Bittel P, Zürcher K, Furrer L, Bertschinger S, Weingartner E, Ramette A, Egger M, Hascher T, Fenner L. Air Cleaners and Respiratory Infections in Schools: A Modeling Study Based on Epidemiologic, Environmental, and Molecular Data. Open Forum Infect Dis 2024; 11:ofae169. [PMID: 38665173 PMCID: PMC11045022 DOI: 10.1093/ofid/ofae169] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2023] [Accepted: 03/19/2024] [Indexed: 04/28/2024] Open
Abstract
Background Using a multiple-measurement approach, we examined the real-world effectiveness of portable HEPA air filtration devices (air cleaners) in a school setting. Methods We collected data over 7 weeks during winter 2022/2023 in 2 Swiss secondary school classes: environmental (CO2, particle concentrations), epidemiologic (absences related to respiratory infections), audio (coughing), and molecular (bioaerosol and saliva samples). Using a crossover design, we compared particle concentrations, coughing, and risk of infection with and without air cleaners. Results All 38 students participated (age, 13-15 years). With air cleaners, mean particle concentration decreased by 77% (95% credible interval, 63%-86%). There were no differences in CO2 levels. Absences related to respiratory infections were 22 without air cleaners vs 13 with them. Bayesian modeling suggested a reduced risk of infection, with a posterior probability of 91% and a relative risk of 0.73 (95% credible interval, 0.44-1.18). Coughing also tended to be less frequent (posterior probability, 93%), indicating that fewer symptomatic students were in class. Molecular analysis detected mainly non-SARS-CoV-2 viruses in saliva (50/448 positive) but not in bioaerosols (2/105) or on the HEPA filters of the air cleaners (4/160). The molecular detection rate in saliva was similar with and without air cleaners. Spatiotemporal analysis of positive saliva samples identified several likely transmissions. Conclusions Air cleaners improved air quality and showed potential benefits in reducing respiratory infections. Airborne detection of non-SARS-CoV-2 viruses was rare, suggesting that these viruses may be more difficult to detect in the air. Future studies should examine the importance of close contact and long-range transmission and the cost-effectiveness of using air cleaners.
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Affiliation(s)
- Nicolas Banholzer
- Institute of Social and Preventive Medicine, University of Bern, Bern, Switzerland
- Multidisciplinary Center for Infectious Diseases, University of Bern, Bern, Switzerland
| | - Philipp Jent
- Multidisciplinary Center for Infectious Diseases, University of Bern, Bern, Switzerland
- Department of Infectious Diseases, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Pascal Bittel
- Multidisciplinary Center for Infectious Diseases, University of Bern, Bern, Switzerland
- Institute for Infectious Diseases, University of Bern, Bern, Switzerland
| | - Kathrin Zürcher
- Institute of Social and Preventive Medicine, University of Bern, Bern, Switzerland
- Multidisciplinary Center for Infectious Diseases, University of Bern, Bern, Switzerland
| | - Lavinia Furrer
- Institute for Infectious Diseases, University of Bern, Bern, Switzerland
| | - Simon Bertschinger
- Institute of Social and Preventive Medicine, University of Bern, Bern, Switzerland
| | - Ernest Weingartner
- Institute for Sensors and Electronics, University of Applied Sciences and Arts Northwestern Switzerland, Windisch, Switzerland
| | - Alban Ramette
- Multidisciplinary Center for Infectious Diseases, University of Bern, Bern, Switzerland
- Institute for Infectious Diseases, University of Bern, Bern, Switzerland
| | - Matthias Egger
- Institute of Social and Preventive Medicine, University of Bern, Bern, Switzerland
- Population Health Sciences, University of Bristol, Bristol, UK
- Centre for Infectious Disease Epidemiology and Research, University of Cape Town, Cape Town, South Africa
| | - Tina Hascher
- Multidisciplinary Center for Infectious Diseases, University of Bern, Bern, Switzerland
- Institute of Educational Science, University of Bern, Bern, Switzerland
| | - Lukas Fenner
- Institute of Social and Preventive Medicine, University of Bern, Bern, Switzerland
- Multidisciplinary Center for Infectious Diseases, University of Bern, Bern, Switzerland
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Banholzer N, Bittel P, Jent P, Furrer L, Zürcher K, Egger M, Hascher T, Fenner L. Molecular detection of SARS-CoV-2 and other respiratory viruses in saliva and classroom air: a two winters tale. Clin Microbiol Infect 2024:S1198-743X(24)00114-9. [PMID: 38467247 DOI: 10.1016/j.cmi.2024.03.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2024] [Revised: 02/26/2024] [Accepted: 03/04/2024] [Indexed: 03/13/2024]
Abstract
OBJECTIVES To compare the prevalence of SARS-CoV-2 and other respiratory viruses in saliva and bioaerosols between two winters and to model the probability of virus detection in classroom air for different viruses. METHODS We analysed saliva, air, and air cleaner filter samples from studies conducted in two Swiss secondary schools (students aged 14-17 years) over 7 weeks during the winters of 2021/22 and 2022/23. Two bioaerosol sampling devices and high efficiency particulate air (HEPA) filters from air cleaners were used to collect airborne virus particles in four classrooms. Daily bioaerosol samples were pooled for each sampling device before PCR analysis of a panel of 19 respiratory viruses and viral subtypes. The probability of detection of airborne viruses was modelled using an adjusted Bayesian logistic regression model. RESULTS Three classes (58 students) participated in 2021/22, and two classes (38 students) in 2022/23. During winter 2021/22, SARS-CoV-2 dominated in saliva (19 of 21 positive samples) and bioaerosols (9 of 10). One year later, there were 50 positive saliva samples, mostly influenza B, rhinovirus, and adenovirus, and two positive bioaerosol samples, one rhinovirus and one adenovirus. The weekly probability of airborne detection was 34% (95% credible interval [CrI] 22-47%) for SARS-CoV-2 and 10% (95% CrI 5-16%) for other respiratory viruses. DISCUSSION There was a distinct shift in the distribution of respiratory viruses from SARS-CoV-2 during the omicron wave to other respiratory viruses one year later. SARS-CoV-2 is more likely to be detected in the air than other endemic respiratory viruses, possibly reflecting differences in viral characteristics and the composition of virus-carrying particles that facilitate airborne long-range transmission.
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Affiliation(s)
- Nicolas Banholzer
- Institute of Social and Preventive Medicine, University of Bern, Bern, Switzerland; Multidisciplinary Center for Infectious Diseases, University of Bern, Bern, Switzerland
| | - Pascal Bittel
- Multidisciplinary Center for Infectious Diseases, University of Bern, Bern, Switzerland; Institute for Infectious Diseases, University of Bern, Bern, Switzerland
| | - Philipp Jent
- Multidisciplinary Center for Infectious Diseases, University of Bern, Bern, Switzerland; Department of Infectious Diseases, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Lavinia Furrer
- Institute for Infectious Diseases, University of Bern, Bern, Switzerland
| | - Kathrin Zürcher
- Institute of Social and Preventive Medicine, University of Bern, Bern, Switzerland; Multidisciplinary Center for Infectious Diseases, University of Bern, Bern, Switzerland
| | - Matthias Egger
- Institute of Social and Preventive Medicine, University of Bern, Bern, Switzerland; Population Health Sciences, University of Bristol, Bristol, UK; Centre for Infectious Disease Epidemiology and Research, University of Cape Town, Cape Town, South Africa
| | - Tina Hascher
- Multidisciplinary Center for Infectious Diseases, University of Bern, Bern, Switzerland; Institute of Educational Science, University of Bern, Bern, Switzerland
| | - Lukas Fenner
- Institute of Social and Preventive Medicine, University of Bern, Bern, Switzerland; Multidisciplinary Center for Infectious Diseases, University of Bern, Bern, Switzerland.
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Banholzer N, Jent P, Bittel P, Zürcher K, Furrer L, Bertschinger S, Weingartner E, Ramette A, Egger M, Hascher T, Fenner L. Air cleaners and respiratory infections in schools: A modeling study using epidemiological, environmental, and molecular data. medRxiv 2023:2023.12.29.23300635. [PMID: 38234723 PMCID: PMC10793541 DOI: 10.1101/2023.12.29.23300635] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/19/2024]
Abstract
Background Using a multiple-measurement approach, we examined the real-world effectiveness of portable HEPA-air filtration devices (air cleaners) in a school setting. Methods We collected environmental (CO2, particle concentrations), epidemiological (absences related to respiratory infections), audio (coughing), and molecular data (bioaerosol and saliva samples) over seven weeks during winter 2022/2023 in two Swiss secondary school classes. Using a cross-over study design, we compared particle concentrations, coughing, and the risk of infection with vs without air cleaners. Results All 38 students (age 13-15 years) participated. With air cleaners, mean particle concentration decreased by 77% (95% credible interval 63%-86%). There were no differences in CO2 levels. Absences related to respiratory infections were 22 without vs 13 with air cleaners. Bayesian modeling suggested a reduced risk of infection, with a posterior probability of 91% and a relative risk of 0.73 (95% credible interval 0.44-1.18). Coughing also tended to be less frequent (posterior probability 93%). Molecular analysis detected mainly non-SARS-CoV-2 viruses in saliva (50/448 positive), but not in bioaerosols (2/105 positive) or HEPA-filters (4/160). The detection rate was similar with vs without air cleaners. Spatiotemporal analysis of positive saliva samples identified several likely transmissions. Conclusions Air cleaners improved air quality, showed a potential benefit in reducing respiratory infections, and were associated with less coughing. Airborne detection of non-SARS-CoV-2 viruses was rare, suggesting that these viruses may be more difficult to detect in the air. Future studies should examine the importance of close contact and long-range transmission, and the cost-effectiveness of using air cleaners.
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Affiliation(s)
- Nicolas Banholzer
- Institute of Social and Preventive Medicine, University of Bern, Bern, Switzerland
- Multidisciplinary Center for Infectious Diseases, University of Bern, Bern, Switzerland
| | - Philipp Jent
- Multidisciplinary Center for Infectious Diseases, University of Bern, Bern, Switzerland
- Department of Infectious Diseases, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Pascal Bittel
- Multidisciplinary Center for Infectious Diseases, University of Bern, Bern, Switzerland
- Institute for Infectious Diseases, University of Bern, Bern, Switzerland
| | - Kathrin Zürcher
- Institute of Social and Preventive Medicine, University of Bern, Bern, Switzerland
| | - Lavinia Furrer
- Institute for Infectious Diseases, University of Bern, Bern, Switzerland
| | - Simon Bertschinger
- Institute of Social and Preventive Medicine, University of Bern, Bern, Switzerland
| | - Ernest Weingartner
- Institute for Sensors and Electronics, University of Applied Sciences and Arts Northwestern Switzerland, Windisch, Switzerland
| | - Alban Ramette
- Multidisciplinary Center for Infectious Diseases, University of Bern, Bern, Switzerland
- Institute for Infectious Diseases, University of Bern, Bern, Switzerland
| | - Matthias Egger
- Institute of Social and Preventive Medicine, University of Bern, Bern, Switzerland
- Population Health Sciences, University of Bristol, Bristol, UK
- Centre for Infectious Disease Epidemiology and Research, University of Cape Town, Cape Town, South Africa
| | - Tina Hascher
- Multidisciplinary Center for Infectious Diseases, University of Bern, Bern, Switzerland
- Institute of Educational Science, University of Bern, Bern, Switzerland
| | - Lukas Fenner
- Institute of Social and Preventive Medicine, University of Bern, Bern, Switzerland
- Multidisciplinary Center for Infectious Diseases, University of Bern, Bern, Switzerland
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Hartnack S, Nilius H, Jegerlehner S, Suter-Riniker F, Bittel P, Jent P, Nagler M. Determination of the Diagnostic Performance of Laboratory Tests in the Absence of a Perfect Reference Standard: The Case of SARS-CoV-2 Tests. Diagnostics (Basel) 2023; 13:2892. [PMID: 37761259 PMCID: PMC10530219 DOI: 10.3390/diagnostics13182892] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2023] [Revised: 09/01/2023] [Accepted: 09/06/2023] [Indexed: 09/29/2023] Open
Abstract
BACKGROUND Currently, assessing the diagnostic performance of new laboratory tests assumes a perfect reference standard, which is rarely the case. Wrong classifications of the true disease status will inevitably lead to biased estimates of sensitivity and specificity. OBJECTIVES Using Bayesian' latent class models (BLCMs), an approach that does not assume a perfect reference standard, we re-analyzed data of a large prospective observational study assessing the diagnostic accuracy of an antigen test for the diagnosis of SARS-CoV-2 infection in clinical practice. METHODS A cohort of consecutive patients presenting to a COVID-19 testing facility affiliated with a Swiss University Hospital were recruited (n = 1465). Two real-time PCR tests were conducted in parallel with the Roche/SD Biosensor rapid antigen test on nasopharyngeal swabs. A two-test (PCR and antigen test), three-population BLCM was fitted to the frequencies of paired test results. RESULTS Based on the BLCM, the sensitivities of the RT-PCR and the Roche/SD Biosensor rapid antigen test were 98.5% [95% CRI 94.8;100] and 82.7% [95% CRI 66.8;100]. The specificities were 97.7% [96.1;99.7] and 99.9% [95% CRI 99.6;100]. CONCLUSIONS Applying the BLCM, the diagnostic accuracy of RT-PCR was high but not perfect. In contrast to previous results, the sensitivity of the antigen test was higher. Our results suggest that BLCMs are valuable tools for investigating the diagnostic performance of laboratory tests in the absence of perfect reference standard.
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Affiliation(s)
- Sonja Hartnack
- Section of Epidemiology, Vetsuisse Faculty, University of Zurich, 8057 Zuric, Switzerland
| | - Henning Nilius
- Department of Clinical Chemistry, Inselspital, Bern University Hospital, University of Bern, 3010 Bern, Switzerland; (H.N.); (M.N.)
| | - Sabrina Jegerlehner
- Department of Emergency Medicine, Inselspital, Bern University Hospital, 3010 Bern, Switzerland;
| | - Franziska Suter-Riniker
- Institute for Infectious Diseases, University of Bern, 3010 Bern, Switzerland; (F.S.-R.); (P.B.)
| | - Pascal Bittel
- Institute for Infectious Diseases, University of Bern, 3010 Bern, Switzerland; (F.S.-R.); (P.B.)
| | - Philipp Jent
- Department of Infectious Diseases, Inselspital, Bern University Hospital, University of Bern, 3010 Bern, Switzerland;
| | - Michael Nagler
- Department of Clinical Chemistry, Inselspital, Bern University Hospital, University of Bern, 3010 Bern, Switzerland; (H.N.); (M.N.)
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Januel JM, Lotfinejad N, Grant R, Tschudin-Sutter S, Schreiber PW, Grandbastien B, Jent P, Lo Priore E, Scherrer A, Harbarth S, Catho G, Buetti N. Predictive performance of automated surveillance algorithms for intravascular catheter bloodstream infections: a systematic review and meta-analysis. Antimicrob Resist Infect Control 2023; 12:87. [PMID: 37653559 PMCID: PMC10468855 DOI: 10.1186/s13756-023-01286-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2023] [Accepted: 08/09/2023] [Indexed: 09/02/2023] Open
Abstract
BACKGROUND Intravascular catheter infections are associated with adverse clinical outcomes. However, a significant proportion of these infections are preventable. Evaluations of the performance of automated surveillance systems for adequate monitoring of central-line associated bloodstream infection (CLABSI) or catheter-related bloodstream infection (CRBSI) are limited. OBJECTIVES We evaluated the predictive performance of automated algorithms for CLABSI/CRBSI detection, and investigated which parameters included in automated algorithms provide the greatest accuracy for CLABSI/CRBSI detection. METHODS We performed a meta-analysis based on a systematic search of published studies in PubMed and EMBASE from 1 January 2000 to 31 December 2021. We included studies that evaluated predictive performance of automated surveillance algorithms for CLABSI/CRBSI detection and used manually collected surveillance data as reference. We estimated the pooled sensitivity and specificity of algorithms for accuracy and performed a univariable meta-regression of the different parameters used across algorithms. RESULTS The search identified five full text studies and 32 different algorithms or study populations were included in the meta-analysis. All studies analysed central venous catheters and identified CLABSI or CRBSI as an outcome. Pooled sensitivity and specificity of automated surveillance algorithm were 0.88 [95%CI 0.84-0.91] and 0.86 [95%CI 0.79-0.92] with significant heterogeneity (I2 = 91.9, p < 0.001 and I2 = 99.2, p < 0.001, respectively). In meta-regression, algorithms that include results of microbiological cultures from specific specimens (respiratory, urine and wound) to exclude non-CRBSI had higher specificity estimates (0.92, 95%CI 0.88-0.96) than algorithms that include results of microbiological cultures from any other body sites (0.88, 95% CI 0.81-0.95). The addition of clinical signs as a predictor did not improve performance of these algorithms with similar specificity estimates (0.92, 95%CI 0.88-0.96). CONCLUSIONS Performance of automated algorithms for detection of intravascular catheter infections in comparison to manual surveillance seems encouraging. The development of automated algorithms should consider the inclusion of results of microbiological cultures from specific specimens to exclude non-CRBSI, while the inclusion of clinical data may not have an added-value. Trail Registration Prospectively registered with International prospective register of systematic reviews (PROSPERO ID CRD42022299641; January 21, 2022). https://www.crd.york.ac.uk/prospero/display_record.php?ID=CRD42022299641.
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Affiliation(s)
- Jean-Marie Januel
- Infection Control Program and WHO Collaborating Centre, Geneva University Hospitals and Faculty of Medicine, Service PCI, Rue Gabrielle-Perret-Gentil 4, 1205, Geneve, Switzerland.
| | - Nasim Lotfinejad
- Infection Control Program and WHO Collaborating Centre, Geneva University Hospitals and Faculty of Medicine, Service PCI, Rue Gabrielle-Perret-Gentil 4, 1205, Geneve, Switzerland
| | - Rebecca Grant
- Infection Control Program and WHO Collaborating Centre, Geneva University Hospitals and Faculty of Medicine, Service PCI, Rue Gabrielle-Perret-Gentil 4, 1205, Geneve, Switzerland
| | - Sarah Tschudin-Sutter
- Division of Infectious Diseases & Hospital Epidemiology, University Hospital Basel and University of Basel, Basel, Switzerland
| | - Peter W Schreiber
- Department of Infectious Diseases and Hospital Epidemiology, University Hospital Zurich and University of Zurich, Zurich, Switzerland
| | - Bruno Grandbastien
- Service of Hospital Preventive Medicine, Lausanne University Hospital, Lausanne, Switzerland
| | - Philipp Jent
- Department of Infectious Diseases, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Elia Lo Priore
- Department of Infectious Diseases and Hospital Epidemiology, EOC Regional Hospital of Lugano, Lugano, Switzerland
| | | | - Stephan Harbarth
- Infection Control Program and WHO Collaborating Centre, Geneva University Hospitals and Faculty of Medicine, Service PCI, Rue Gabrielle-Perret-Gentil 4, 1205, Geneve, Switzerland
| | - Gaud Catho
- Infection Control Program and WHO Collaborating Centre, Geneva University Hospitals and Faculty of Medicine, Service PCI, Rue Gabrielle-Perret-Gentil 4, 1205, Geneve, Switzerland
- Division of Infectious Diseases, Central Institute, Valais Hospital, Sion, Switzerland
| | - Niccolò Buetti
- Infection Control Program and WHO Collaborating Centre, Geneva University Hospitals and Faculty of Medicine, Service PCI, Rue Gabrielle-Perret-Gentil 4, 1205, Geneve, Switzerland
- Université de Paris, INSERM, IAME UMR 1137, 75018, Paris, France
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McDonald EG, Aggrey G, Tarik Aslan A, Casias M, Cortes-Penfield N, Dong MQD, Egbert S, Footer B, Isler B, King M, Maximos M, Wuerz TC, Azim AA, Alza-Arcila J, Bai AD, Blyth M, Boyles T, Caceres J, Clark D, Davar K, Denholm JT, Forrest G, Ghanem B, Hagel S, Hanretty A, Hamilton F, Jent P, Kang M, Kludjian G, Lahey T, Lapin J, Lee R, Li T, Mehta D, Moore J, Mowrer C, Ouellet G, Reece R, Ryder JH, Sanctuaire A, Sanders JM, Stoner BJ, So JM, Tessier JF, Tirupathi R, Tong SYC, Wald-Dickler N, Yassin A, Yen C, Spellberg B, Lee TC. Guidelines for Diagnosis and Management of Infective Endocarditis in Adults: A WikiGuidelines Group Consensus Statement. JAMA Netw Open 2023; 6:e2326366. [PMID: 37523190 DOI: 10.1001/jamanetworkopen.2023.26366] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 08/01/2023] Open
Abstract
Importance Practice guidelines often provide recommendations in which the strength of the recommendation is dissociated from the quality of the evidence. Objective To create a clinical guideline for the diagnosis and management of adult bacterial infective endocarditis (IE) that addresses the gap between the evidence and recommendation strength. Evidence Review This consensus statement and systematic review applied an approach previously established by the WikiGuidelines Group to construct collaborative clinical guidelines. In April 2022 a call to new and existing members was released electronically (social media and email) for the next WikiGuidelines topic, and subsequently, topics and questions related to the diagnosis and management of adult bacterial IE were crowdsourced and prioritized by vote. For each topic, PubMed literature searches were conducted including all years and languages. Evidence was reported according to the WikiGuidelines charter: clear recommendations were established only when reproducible, prospective, controlled studies provided hypothesis-confirming evidence. In the absence of such data, clinical reviews were crafted discussing the risks and benefits of different approaches. Findings A total of 51 members from 10 countries reviewed 587 articles and submitted information relevant to 4 sections: establishing the diagnosis of IE (9 questions); multidisciplinary IE teams (1 question); prophylaxis (2 questions); and treatment (5 questions). Of 17 unique questions, a clear recommendation could only be provided for 1 question: 3 randomized clinical trials have established that oral transitional therapy is at least as effective as intravenous (IV)-only therapy for the treatment of IE. Clinical reviews were generated for the remaining questions. Conclusions and Relevance In this consensus statement that applied the WikiGuideline method for clinical guideline development, oral transitional therapy was at least as effective as IV-only therapy for the treatment of IE. Several randomized clinical trials are underway to inform other areas of practice, and further research is needed.
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Affiliation(s)
- Emily G McDonald
- Division of General Internal Medicine, Department of Medicine, McGill University, Montreal, Quebec, Canada
| | | | - Abdullah Tarik Aslan
- The University of Queensland, Faculty of Medicine, Centre for Clinical Research, Brisbane, Queensland, Australia
| | - Michael Casias
- Jersey Shore University Medical Center, Neptune, New Jersey
| | | | | | - Susan Egbert
- Department of Chemistry, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Brent Footer
- Providence Portland Medical Center, Portland, Oregon
| | - Burcu Isler
- University of Queensland, Centre for Clinical Research, Brisbane, Queensland, Australia
| | | | - Mira Maximos
- Women's College Hospital, Toronto, Ontario, Canada
| | - Terence C Wuerz
- Departments of Internal Medicine & Community Health Sciences, Max Rady College of Medicine, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Ahmed Abdul Azim
- Division of Infectious Diseases, Allergy and Immunology, Rutgers Robert Wood Johnson Medical School, New Brunswick, New Jersey
| | | | - Anthony D Bai
- Division of Infectious Diseases, Department of Medicine, Queen's University, Kingston, Ontario, Canada
| | | | - Tom Boyles
- Right to Care, NPC, Centurion, South Africa and London School of Hygiene and Tropical Medicine, London, United Kingdom
| | - Juan Caceres
- Division of Internal Medicine, Michigan Medicine, Ann Arbor
| | - Devin Clark
- Los Angeles County and University of Southern California Medical Center, Los Angeles
| | - Kusha Davar
- Los Angeles County and University of Southern California Medical Center, Los Angeles
| | - Justin T Denholm
- Victorian Infectious Diseases Service, Royal Melbourne Hospital, Melbourne, Victoria, Australia
| | | | | | - Stefan Hagel
- Institute for Infectious Diseases and Infection Control, Jena University Hospital-Friedrich Schiller University Jena, Jena, Germany
| | | | - Fergus Hamilton
- Infection Science, North Bristol NHS Trust, Bristol, United Kingdom
| | - Philipp Jent
- Department of Infectious Diseases, Inselspital Bern University Hospital, University of Bern, Bern, Switzerland
| | - Minji Kang
- Division of Infectious Diseases and Geographic Medicine, University of Texas Southwestern, Dallas
| | | | - Tim Lahey
- University of Vermont Medical Center, Burlington
| | | | | | - Timothy Li
- Department of Medicine & Therapeutics, The Chinese University of Hong Kong, Hong Kong
| | - Dhara Mehta
- Bellevue Hospital Center, New York, New York
| | | | - Clayton Mowrer
- University of Nebraska Medical Center, Children's Hospital and Medical Center, Omaha
| | | | - Rebecca Reece
- Section of Infectious Diseases, West Virginia University, Morgantown
| | - Jonathan H Ryder
- Division of Infectious Diseases, University of Nebraska Medical Center, Omaha
| | - Alexandre Sanctuaire
- Institut universitaire de cardiologie et de pneumologie de Québec-Université Laval, Québec, Canada
| | | | | | - Jessica M So
- Los Angeles County and University of Southern California Medical Center, Los Angeles
| | | | | | - Steven Y C Tong
- Department of Infectious Diseases, The University of Melbourne at the Peter Doherty Institute for Infection and Immunity, Melbourne, Victoria, Australia
| | - Noah Wald-Dickler
- Los Angeles County and University of Southern California Medical Center, Los Angeles
| | - Arsheena Yassin
- Robert Wood Johnson University Hospital, New Brunswick, New Jersey
| | - Christina Yen
- Division of Infectious Diseases and Geographic Medicine, University of Texas Southwestern, Dallas
| | - Brad Spellberg
- Los Angeles County and University of Southern California Medical Center, Los Angeles
| | - Todd C Lee
- Division of Infectious Diseases, McGill University Health Centre, Montreal, Quebec, Canada
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8
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Banholzer N, Zürcher K, Jent P, Bittel P, Furrer L, Egger M, Hascher T, Fenner L. SARS-CoV-2 transmission with and without mask wearing or air cleaners in schools in Switzerland: A modeling study of epidemiological, environmental, and molecular data. PLoS Med 2023; 20:e1004226. [PMID: 37200241 PMCID: PMC10194935 DOI: 10.1371/journal.pmed.1004226] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/19/2023] [Accepted: 03/28/2023] [Indexed: 05/20/2023] Open
Abstract
BACKGROUND Growing evidence suggests an important contribution of airborne transmission to the overall spread of Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2), in particular via smaller particles called aerosols. However, the contribution of school children to SARS-CoV-2 transmission remains uncertain. The aim of this study was to assess transmission of airborne respiratory infections and the association with infection control measures in schools using a multiple-measurement approach. METHODS AND FINDINGS We collected epidemiological (cases of Coronavirus Disease 2019 (COVID-19)), environmental (CO2, aerosol and particle concentrations), and molecular data (bioaerosol and saliva samples) over 7 weeks from January to March 2022 (Omicron wave) in 2 secondary schools (n = 90, average 18 students/classroom) in Switzerland. We analyzed changes in environmental and molecular characteristics between different study conditions (no intervention, mask wearing, air cleaners). Analyses of environmental changes were adjusted for different ventilation, the number of students in class, school and weekday effects. We modeled disease transmission using a semi-mechanistic Bayesian hierarchical model, adjusting for absent students and community transmission. Molecular analysis of saliva (21/262 positive) and airborne samples (10/130) detected SARS-CoV-2 throughout the study (weekly average viral concentration 0.6 copies/L) and occasionally other respiratory viruses. Overall daily average CO2 levels were 1,064 ± 232 ppm (± standard deviation). Daily average aerosol number concentrations without interventions were 177 ± 109 1/cm3 and decreased by 69% (95% CrI 42% to 86%) with mask mandates and 39% (95% CrI 4% to 69%) with air cleaners. Compared to no intervention, the transmission risk was lower with mask mandates (adjusted odds ratio 0.19, 95% CrI 0.09 to 0.38) and comparable with air cleaners (1.00, 95% CrI 0.15 to 6.51). Study limitations include possible confounding by period as the number of susceptible students declined over time. Furthermore, airborne detection of pathogens document exposure but not necessarily transmission. CONCLUSIONS Molecular detection of airborne and human SARS-CoV-2 indicated sustained transmission in schools. Mask mandates were associated with greater reductions in aerosol concentrations than air cleaners and with lower transmission. Our multiple-measurement approach could be used to continuously monitor transmission risk of respiratory infections and the effectiveness of infection control measures in schools and other congregate settings.
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Affiliation(s)
- Nicolas Banholzer
- Institute of Social and Preventive Medicine, University of Bern, Bern, Switzerland
| | - Kathrin Zürcher
- Institute of Social and Preventive Medicine, University of Bern, Bern, Switzerland
| | - Philipp Jent
- Department of Infectious Diseases, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Pascal Bittel
- Institute for Infectious Diseases, University of Bern, Bern, Switzerland
| | - Lavinia Furrer
- Institute for Infectious Diseases, University of Bern, Bern, Switzerland
| | - Matthias Egger
- Institute of Social and Preventive Medicine, University of Bern, Bern, Switzerland
- Centre for Infectious Disease Epidemiology and Research, Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa
- Population Health Sciences, Bristol Medical School, University of Bristol, Bristol, United Kingdom
| | - Tina Hascher
- Institute of Educational Science, University of Bern, Bern, Switzerland
| | - Lukas Fenner
- Institute of Social and Preventive Medicine, University of Bern, Bern, Switzerland
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9
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Damonti L, Atkinson A, Fontannaz L, Burnham JP, Jent P, Troillet N, Widmer A, Marschall J. Influence of environmental temperature and heatwaves on surgical site infection after hip and knee arthroplasty: a nationwide study. J Hosp Infect 2023; 135:125-131. [PMID: 36996907 DOI: 10.1016/j.jhin.2023.03.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2023] [Revised: 03/13/2023] [Accepted: 03/18/2023] [Indexed: 04/01/2023]
Abstract
BACKGROUND Previous studies reported higher incidence of surgical site infection (SSI) after procedures performed in summer or with high temperatures. However, no study used detailed climate data to assess this risk after hip and knee arthroplasty, and no study specifically investigated the role of heatwaves. AIM To assess the impact of higher environmental temperatures and heatwaves on SSI rates after hip and knee arthroplasty. METHODS Data on hip and knee arthroplasty procedures performed between 01/2013 - 09/2019 in hospitals participating in the Swiss SSI surveillance were linked to climate data extracted from weather stations located in their vicinity. The association between temperature, heatwaves and SSI was studied using mixed effects logistic regression models fitted at the patient level. Poisson mixed models were fitted for both calendar year and month of the year to investigate the SSI incidence trajectory over time. RESULTS We included 116,981 procedures performed in 122 hospitals. Significantly higher SSI rates were observed for procedures performed in the summertime (incidence rate ratio 1.39, 95% CI [1.20-1.60], p<0.001; reference: autumn) or in calendar months in which the mean temperature was above 20°C (reference 05-10°C; odds ratio 1.59, 95% CI [1.27, 1.98] p<0.001). We observed a slight but non-significant increase in the rate of SSI during heatwaves (1.44% versus 1.01%, p=0.2). CONCLUSION SSI rates after hip and knee replacement appear to increase with higher environmental temperature. To establish if, and to what extent, heatwaves increase the risk of SSI, studies involving geographical areas with larger variability in temperature are needed.
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Affiliation(s)
- Lauro Damonti
- Department of Infectious Diseases, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland.
| | - Andrew Atkinson
- Department of Infectious Diseases, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Lionel Fontannaz
- Federal Office of Meteorology and Climatology MeteoSwiss, Bern, Switzerland
| | - Jason P Burnham
- Division of Infectious Diseases, Washington University School of Medicine, St. Louis, MO, U.S
| | - Philipp Jent
- Department of Infectious Diseases, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Nicolas Troillet
- Department of Infectious Diseases, Central Institute, Valais Hospital, Sion, Switzerland
| | - Andreas Widmer
- Division of Infectious Diseases and Hospital Epidemiology, University of Basel Hospitals and Clinics, Basel, Switzerland
| | - Jonas Marschall
- Department of Infectious Diseases, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland; Division of Infectious Diseases, Washington University School of Medicine, St. Louis, MO, U.S
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10
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Piezzi V, Wassilew N, Atkinson A, D'Incau S, Kaspar T, Seth-Smith HMB, Casanova C, Bittel P, Jent P, Sommerstein R, Buetti N, Marschall J. Nosocomial outbreak of vancomycin-resistant Enterococcus faecium (VRE) ST796, Switzerland, 2017 to 2020. Euro Surveill 2022; 27:2200285. [PMID: 36695463 PMCID: PMC9716646 DOI: 10.2807/1560-7917.es.2022.27.48.2200285] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022] Open
Abstract
A large clonal outbreak caused by vancomycin-resistant Enterococcus faecium (VRE) affected the Bern University Hospital group from the end of December 2017 until July 2020. We describe the characteristics of the outbreak and the bundle of infection prevention and control (IPC) measures implemented. The outbreak was first recognised when two concomitant cases of VRE bloodstream infection were identified on the oncology ward. During 32 months, 518 patients in the 1,300-bed hospital group were identified as vanB VRE carriers. Eighteen (3.5%) patients developed an invasive infection, of whom seven had bacteraemia. In 2018, a subset of 328 isolates were analysed by whole genome sequencing, 312 of which were identified as sequence type (ST) 796. The initial IPC measures were implemented with a focus on the affected wards. However, in June 2018, ST796 caused another increase in cases, and the management strategy was intensified and escalated to a hospital-wide level. The clinical impact of this large nosocomial VRE outbreak with the emergent clone ST796 was modest. A hospital-wide approach with a multimodal IPC bundle was successful against this highly transmissible strain.
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Affiliation(s)
- Vanja Piezzi
- Department of Infectious Diseases, University Hospital Bern, University of Bern, Bern, Switzerland
| | - Nasstasja Wassilew
- Department of Infectious Diseases, University Hospital Bern, University of Bern, Bern, Switzerland
| | - Andrew Atkinson
- Department of Infectious Diseases, University Hospital Bern, University of Bern, Bern, Switzerland
| | - Stéphanie D'Incau
- Department of Infectious Diseases, Lucerne Cantonal Hospital, Lucerne, Switzerland
| | - Tanja Kaspar
- Department of Infectious Diseases, University Hospital Bern, University of Bern, Bern, Switzerland
| | - Helena MB Seth-Smith
- Division of Clinical Bacteriology and Mycology, University Hospital Basel, Basel, Switzerland and Applied Microbiology Research, Department of Biomedicine, University of Basel, Basel, Switzerland,Institute of Medical Microbiology, University of Zurich, Zurich, Switzerland
| | - Carlo Casanova
- Institute for Infectious Diseases, University of Bern, Bern, Switzerland
| | - Pascal Bittel
- Institute for Infectious Diseases, University of Bern, Bern, Switzerland
| | - Philipp Jent
- Department of Infectious Diseases, University Hospital Bern, University of Bern, Bern, Switzerland
| | - Rami Sommerstein
- Department of Infectious Diseases, University Hospital Bern, University of Bern, Bern, Switzerland,Department Health Sciences and Medicine, Clinic St. Anna, University of Lucerne, Lucerne, Switzerland
| | - Niccolò Buetti
- Infection Control Programme, University of Geneva Hospitals and Faculty of Medicine, Geneva, Switzerland,INSERM, IAME, Université Paris-Cité, Paris, France
| | - Jonas Marschall
- Department of Infectious Diseases, University Hospital Bern, University of Bern, Bern, Switzerland,Division of Infectious Diseases, Department of Internal Medicine, Washington University School of Medicine, St. Louis, MO, United States
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11
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Michel J, Mettler A, Stuber R, Müller M, Ricklin ME, Jent P, Hautz WE, Sauter TC. Effects and utility of an online forward triage tool during the SARS-CoV-2 pandemic: a mixed method study and patient perspectives, Switzerland. BMJ Open 2022; 12:e059765. [PMID: 35820749 PMCID: PMC9274020 DOI: 10.1136/bmjopen-2021-059765] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
OBJECTIVE To assess the effects (quantitatively) and the utility (qualitatively) of a COVID-19 online forward triage tool (OFTT) in a pandemic context. DESIGN A mixed method sequential explanatory study was employed. Quantitative data of all OFTT users, between 2 March 2020 and 12 May 2020, were collected. Second, qualitative data were collected through key informant interviews (n=19) to explain the quantitative findings, explore tool utility, user experience and elicit recommendations. SETTING The working group e-emergency medicine at the emergency department developed an OFTT, which was made available online. PARTICIPANTS Participants included all users above the age of 18 that used the OFTT between 2 March 2020 and 12 May 2020. INTERVENTION An OFTT that displayed the current test recommendations of the Federal Office of Public Health on whether someone needed testing for COVID-19 or not. No diagnosis was provided. RESULTS In the study period, 6272 users consulted our OFTT; 40.2% (1626/4049) would have contacted a healthcare provider had the tool not existed. 560 participants consented to a follow-up survey and provided a valid email address. 31.4% (176/560) participants returned a complete follow-up questionnaire. 84.7% (149/176) followed the recommendations given. 41.5% (73/176) reported that their fear was allayed after using the tool. Qualitatively, seven overarching themes emerged namely (1) accessibility of tool, (2) user-friendliness of tool, (3) utility of tool as an information source, (4) utility of tool in allaying fear and anxiety, (5) utility of tool in medical decision-making (6) utility of tool in reducing the potential for onward transmissions and (7) utility of tool in reducing health system burden. CONCLUSION Our findings demonstrated that a COVID-19 OFTT does not only reduce the health system burden but can also serve as an information source, reduce anxiety and fear, reduce potential for cross infections and facilitate medical decision-making.
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Affiliation(s)
- Janet Michel
- Department of Emergency Medicine, Inselspital, University Hospital, University of Bern, Bern, Switzerland
| | - Annette Mettler
- Department of Emergency Medicine, Inselspital, University Hospital, University of Bern, Bern, Switzerland
| | - Raphael Stuber
- Department of Emergency Medicine, Inselspital, University Hospital, University of Bern, Bern, Switzerland
| | - Martin Müller
- Department of Emergency Medicine, Inselspital, University Hospital, University of Bern, Bern, Switzerland
| | - Meret E Ricklin
- Department of Emergency Medicine, Inselspital, University Hospital, University of Bern, Bern, Switzerland
| | - Philipp Jent
- Department of Infectious Diseases, Inselspital, University Hospital, University of Bern, Bern, Switzerland
| | - Wolf E Hautz
- Department of Emergency Medicine, Inselspital, University Hospital, University of Bern, Bern, Switzerland
- Centre for Educational Measurement, University of Oslo, Oslo, Norway
| | - Thomas C Sauter
- Department of Emergency Medicine, Inselspital, University Hospital, University of Bern, Bern, Switzerland
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12
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Jent P, Berger J, Kuhn A, Trautner BW, Atkinson A, Marschall J. Antibiotics for Preventing Recurrent Urinary Tract Infection: Systematic Review and Meta-analysis. Open Forum Infect Dis 2022; 9:ofac327. [PMID: 35899289 PMCID: PMC9310516 DOI: 10.1093/ofid/ofac327] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2022] [Accepted: 07/01/2022] [Indexed: 12/31/2022] Open
Abstract
Recurrent urinary tract infections are a common health problem. The only comprehensive synthesis on antibiotic prophylaxis in the last 15 years has been a guideline-embedded meta-analysis. We conducted a systematic review and meta-analysis of randomized controlled trials published up to October 13, 2020, evaluating patients age ≥12 years with either ≥2 episodes of lower urinary tract infection (UTI) within 6 months or ≥3 in the past year. Placebo or antibiotics were allowed as comparators. Study quality was low. In the 11 placebo-controlled trials, the risk for developing UTI was 85% lower with prophylaxis in comparison with placebo (risk ratio [RR], 0.15; 95% CI, 0.08-0.29). In the 9 head-to-head trials, the efficacy of the antibiotic agents appeared similar: The pooled RR indicated no difference between nitrofurantoin and comparators (RR, 1.01; 95% CI, 0.74-1.37), nor trimethoprim (+/- sulfamethoxazole; RR, 1.34; 95% CI, 0.89-2.03) or norfloxacin and comparators (RR, 1.17; 95% CI, 0.43-1.70). Studies comparing intermittent (postcoital) with continuous strategies revealed intermittent application to be equally effective.
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Affiliation(s)
- Philipp Jent
- Correspondence: Philipp Jent, MD, Department of Infectious Diseases, Inselspital Bern University Hospital, Freiburgstrasse 16p, CH-3010 Bern, Switzerland ()
| | - Julia Berger
- Department of Infectious Diseases, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Annette Kuhn
- Department of Gynecology, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Barbara W Trautner
- Center for Innovations in Quality, Effectiveness, and Safety (IQuESt), Michael E. DeBakey Veterans Affairs Medical Center and Section of Health Services Research, Baylor College of Medicine, Houston, Texas, USA
| | - Andrew Atkinson
- Department of Infectious Diseases, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Jonas Marschall
- Division of Infectious Diseases, Department of Internal Medicine, Washington University School of Medicine, St. Louis, Missouri, USA
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13
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Spellberg B, Aggrey G, Brennan MB, Footer B, Forrest G, Hamilton F, Minejima E, Moore J, Ahn J, Angarone M, Centor RM, Cherabuddi K, Curran J, Davar K, Davis J, Dong MQ, Ghanem B, Hutcheon D, Jent P, Kang M, Lee R, McDonald EG, Morris AM, Reece R, Schwartz IS, So M, Tong S, Tucker C, Wald-Dickler N, Weinstein EJ, Williams R, Yen C, Zhou S, Lee TC. Use of Novel Strategies to Develop Guidelines for Management of Pyogenic Osteomyelitis in Adults: A WikiGuidelines Group Consensus Statement. JAMA Netw Open 2022; 5:e2211321. [PMID: 35536578 PMCID: PMC9092201 DOI: 10.1001/jamanetworkopen.2022.11321] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
IMPORTANCE Traditional approaches to practice guidelines frequently result in dissociation between strength of recommendation and quality of evidence. OBJECTIVE To construct a clinical guideline for pyogenic osteomyelitis management, with a new standard of evidence to resolve the gap between strength of recommendation and quality of evidence, through the use of a novel open access approach utilizing social media tools. EVIDENCE REVIEW This consensus statement and systematic review study used a novel approach from the WikiGuidelines Group, an open access collaborative research project, to construct clinical guidelines for pyogenic osteomyelitis. In June 2021 and February 2022, authors recruited via social media conducted multiple PubMed literature searches, including all years and languages, regarding osteomyelitis management; criteria for article quality and inclusion were specified in the group's charter. The GRADE system for evaluating evidence was not used based on previously published concerns regarding the potential dissociation between strength of recommendation and quality of evidence. Instead, the charter required that clear recommendations be made only when reproducible, prospective, controlled studies provided hypothesis-confirming evidence. In the absence of such data, clinical reviews were drafted to discuss pros and cons of care choices. Both clear recommendations and clinical reviews were planned with the intention to be regularly updated as new data become available. FINDINGS Sixty-three participants with diverse expertise from 8 countries developed the group's charter and its first guideline on pyogenic osteomyelitis. These participants included both nonacademic and academic physicians and pharmacists specializing in general internal medicine or hospital medicine, infectious diseases, orthopedic surgery, pharmacology, and medical microbiology. Of the 7 questions addressed in the guideline, 2 clear recommendations were offered for the use of oral antibiotic therapy and the duration of therapy. In addition, 5 clinical reviews were authored addressing diagnosis, approaches to osteomyelitis underlying a pressure ulcer, timing for the administration of empirical therapy, specific antimicrobial options (including empirical regimens, use of antimicrobials targeting resistant pathogens, the role of bone penetration, and the use of rifampin as adjunctive therapy), and the role of biomarkers and imaging to assess responses to therapy. CONCLUSIONS AND RELEVANCE The WikiGuidelines approach offers a novel methodology for clinical guideline development that precludes recommendations based on low-quality data or opinion. The primary limitation is the need for more rigorous clinical investigations, enabling additional clear recommendations for clinical questions currently unresolved by high-quality data.
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Affiliation(s)
- Brad Spellberg
- Los Angeles County+University of Southern California (USC) Medical Center, Los Angeles
| | - Gloria Aggrey
- Montgomery Medical Associates PC, Rockville, Maryland
| | - Meghan B. Brennan
- University of Wisconsin Hospital and Clinics, William S. Middleton Memorial Veterans Hospital, Madison
| | - Brent Footer
- Providence Portland Medical Center, Portland, Oregon
| | | | | | - Emi Minejima
- Los Angeles County+University of Southern California (USC) Medical Center, Los Angeles
- Department of Clinical Pharmacy, University of Southern California School of Pharmacy, Los Angeles
| | - Jessica Moore
- Providence Little Company of Mary Medical Center, San Pedro, California
| | - Jaimo Ahn
- Department of Orthopaedic Surgery, Michigan Medicine, University of Michigan, Ann Arbor
| | | | - Robert M. Centor
- Department of Medicine, Birmingham Veterans Affairs (VA) Medical Center, Birmingham, Alabama
| | | | - Jennifer Curran
- Division of Infectious Diseases, Department of Internal Medicine, Michigan Medicine, Ann Arbor
| | - Kusha Davar
- Los Angeles County+University of Southern California (USC) Medical Center, Los Angeles
| | - Joshua Davis
- Menzies School of Health Research and Charles Darwin University, Darwin, Australia
| | - Mei Qin Dong
- New York Health and Hospitals Bellevue Hospital, New York, New York
| | | | - Doug Hutcheon
- Los Angeles County+University of Southern California (USC) Medical Center, Los Angeles
| | - Philipp Jent
- Department of Infectious Diseases, Inselspital Bern University Hospital, Bern, Switzerland
| | - Minji Kang
- University of Texas Southwestern, Dallas
| | - Rachael Lee
- Department of Medicine, Division of Infectious Diseases, University of Alabama at Birmingham, Birmingham
| | - Emily G. McDonald
- Clinical Practice Assessment Unit, Department of Medicine, McGill University, Montreal, Canada
| | - Andrew M. Morris
- Department of Medicine, Division of Infectious Diseases, Sinai Health, University Health Network, and University of Toronto, Toronto, Canada
| | - Rebecca Reece
- Section of Infectious Diseases, Department of Medicine, West Virginia University School of Medicine, Morgantown
| | - Ilan S. Schwartz
- Division of Infectious Diseases, Department of Medicine, University of Alberta, Edmonton, Canada
| | - Miranda So
- Sinai Health System-University Health Network Antimicrobial Stewardship Program, UHN and Leslie Dan Faculty of Pharmacy, University of Toronto, Toronto, Canada
| | - Steven Tong
- Victorian Infectious Diseases Service, Royal Melbourne Hospital and University of Melbourne, at the Peter Doherty Institute for Infection and Immunity, Melbourne, Australia
| | - Christopher Tucker
- Hospital Medicine, Magnolia Regional Health Center, Corinth, Mississippi
| | - Noah Wald-Dickler
- Los Angeles County+University of Southern California (USC) Medical Center, Los Angeles
| | - Erica J. Weinstein
- Division of Infectious Diseases, Department of Medicine and Center for Clinical Epidemiology and Biostatistics, Department of Biostatistics, Epidemiology, and Informatics, Perelman School of Medicine, University of Pennsylvania, Philadelphia
| | - Riley Williams
- Pharmacy Service, Oklahoma City VA Health Care System, Oklahoma City, Oklahoma
| | | | - Shiwei Zhou
- Division of Infectious Diseases, Department of Internal Medicine, Michigan Medicine, Ann Arbor
| | - Todd C. Lee
- Clinical Practice Assessment Unit, Department of Medicine, McGill University, Montreal, Canada
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14
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Jegerlehner S, Suter-Riniker F, Jent P, Bittel P, Nagler M. Diagnostic accuracy of SARS-CoV-2 saliva antigen testing in a real-life clinical setting. Int J Infect Dis 2022; 119:38-40. [PMID: 35364282 PMCID: PMC8964446 DOI: 10.1016/j.ijid.2022.03.037] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2022] [Revised: 03/18/2022] [Accepted: 03/19/2022] [Indexed: 11/26/2022] Open
Abstract
Background SARS-CoV-2 antigen tests with saliva facilitate examination in settings that lack trained personnel. However, little is known about the diagnostic accuracy in real-life clinical settings. Therefore, we studied the diagnostic accuracy of a saliva antigen test in diagnosing SARS-CoV-2 infection in a primary/secondary care testing facility. Methods Individuals who presented at a COVID-19 testing facility affiliated with a Swiss university hospital were prospectively recruited (n=377). Saliva specimen was obtained, and the PCL Inc. COVID19 Gold antigen test was conducted in parallel with 2 real-time polymerase chain reaction (RT-PCR) assays from a nasopharyngeal swab. Results RT-PCR results were positive in 53 individuals, corresponding to a prevalence of 14.1% (missing material in 1 individual). The PCL saliva antigen test was positive in 22 individuals (5.8%) and negative in 354 (93.9%). The sensitivity of the saliva antigen test was 30.2% (95% confidence interval 18.3, 44.3), both overall and in symptomatic individuals. The specificity was 98.1% (96.0, 99.3). Conclusions The diagnostic accuracy of a SARS-CoV-2 saliva antigen test in a primary/secondary care testing facility was remarkably lower than that reported in the manufacturer's specifications.
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Affiliation(s)
- Sabrina Jegerlehner
- Department of Emergency Medicine, Inselspital, Bern University Hospital, Bern, Switzerland
| | | | - Philipp Jent
- Department of Infectious Diseases, Bern University Hospital, Bern, Switzerland
| | - Pascal Bittel
- Institute for Infectious Diseases, University of Bern, Bern, Switzerland
| | - Michael Nagler
- Department of Clinical Chemistry, Inselspital, Bern University Hospital and University of Bern, Bern, Switzerland.
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15
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Damonti L, Kronenberg A, Marschall J, Jent P, Sommerstein R, De Kraker MEA, Harbarth S, Gasser M, Buetti N. The effect of the COVID-19 pandemic on the epidemiology of positive blood cultures in Swiss intensive care units: a nationwide surveillance study. Crit Care 2021; 25:403. [PMID: 34809698 PMCID: PMC8607066 DOI: 10.1186/s13054-021-03814-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2021] [Accepted: 11/04/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Evidence about the impact of the pandemic of COVID-19 on the incidence rates of blood cultures contaminations and bloodstream infections in intensive care units (ICUs) remains scant. The objective of this study was to investigate the nationwide epidemiology of positive blood cultures drawn in ICUs during the first two pandemic waves of COVID-19 in Switzerland. METHODS We analyzed data on positive blood cultures among ICU patients, prospectively collected through a nationwide surveillance system (ANRESIS), from March 30, 2020, to May 31, 2021, a 14-month timeframe that included a first wave of COVID-19, which affected the French and Italian-speaking regions, an interim period (summer 2020) and a second wave that affected the entire country. We used the number of ICU patient-days provided by the Swiss Federal Office of Public Health as denominator to calculate incidence rates of blood culture contaminations and bloodstream infections (ICU-BSI). Incidence rate ratios comparing the interim period with the second wave were determined by segmented Poisson regression models. RESULTS A total of 1099 blood culture contaminations and 1616 ICU-BSIs were identified in 52 ICUs during the study. Overall, more episodes of blood culture contaminations and ICU-BSI were observed during the pandemic waves, compared to the interim period. The proportions of blood culture contaminations and ICU-BSI were positively associated with the ICU occupancy rate, which was higher during the COVID-19 waves. During the more representative second wave (versus interim period), we observed an increased incidence of blood culture contaminations (IRR 1.57, 95% CI 1.16-2.12) and ICU-BSI (IRR 1.20, 95% CI 1.03-1.39). CONCLUSIONS An increase in blood culture contaminations and ICU-BSIs was observed during the second COVID-19 pandemic wave, especially in months when the ICU burden of COVID-19 patients was high.
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Affiliation(s)
- Lauro Damonti
- Department of Infectious Diseases, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland.
- Division of Infectious Diseases, Regional Hospital Lugano, Lugano, Switzerland.
| | - Andreas Kronenberg
- Swiss Centre for Antibiotic Resistance, Institute for Infectious Diseases, University Bern, Bern, Switzerland
| | - Jonas Marschall
- Department of Infectious Diseases, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Philipp Jent
- Department of Infectious Diseases, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Rami Sommerstein
- Department of Infectious Diseases, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
- Department of Health Science and Medicine, University of Lucerne, Lucerne, Switzerland
| | - Marlieke E A De Kraker
- Infection Control Program and WHO Collaborating Centre on Patient Safety, Geneva University Hospitals and Faculty of Medicine, Geneva, Switzerland
| | - Stephan Harbarth
- Infection Control Programme, University of Geneva Hospitals and Faculty of Medicine, WHO Collaborating Center, Geneva, Switzerland
| | - Michael Gasser
- Swiss Centre for Antibiotic Resistance, Institute for Infectious Diseases, University Bern, Bern, Switzerland
| | - Niccolò Buetti
- Infection Control Programme, University of Geneva Hospitals and Faculty of Medicine, WHO Collaborating Center, Geneva, Switzerland
- University of Paris, INSERM, IAME, Team DeSCID, Paris, France
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16
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Jegerlehner S, Suter-Riniker F, Jent P, Bittel P, Nagler M. Diagnostic accuracy of a SARS-CoV-2 rapid antigen test in real-life clinical settings. Int J Infect Dis 2021; 109:118-122. [PMID: 34242764 PMCID: PMC8260496 DOI: 10.1016/j.ijid.2021.07.010] [Citation(s) in RCA: 64] [Impact Index Per Article: 21.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2021] [Revised: 06/30/2021] [Accepted: 07/03/2021] [Indexed: 11/26/2022] Open
Abstract
Background Laboratory tests are a mainstay in managing the COVID-19 pandemic, and high hopes are placed on rapid antigen tests. However, the accuracy of rapid antigen tests in real-life clinical settings is unclear because adequately designed diagnostic accuracy studies are essentially lacking. Objectives The aim of this study was to assess the accuracy of a rapid antigen test in diagnosing SARS-CoV-2 infection in a primary/secondary care testing facility. Methods Consecutive individuals presenting at a COVID-19 testing facility affiliated to a Swiss University Hospital were recruited (n = 1465%). Nasopharyngeal swabs were obtained, and the Roche/SD Biosensor rapid antigen test was conducted in parallel with two real-time PCR tests (reference standard). Results Among the 1465 patients recruited, RT-PCR was positive in 141 individuals, corresponding to a prevalence of 9.6%. The Roche/SD Biosensor rapid antigen test was positive in 94 patients (6.4%), and negative in 1368 individuals (93.4%; insufficient sample material in 3 patients). The overall sensitivity of the rapid antigen test was 65.3% (95% confidence interval [CI] 56.8–73.1), the specificity was 99.9% (95% CI 99.5–100.0). In asymptomatic individuals, the sensitivity was 44.0% (95% CI 24.4–65.1). Conclusions The accuracy of the SARS-CoV-2 Roche/SD Biosensor rapid antigen test in diagnosing SARS-CoV-2 infections in a primary/secondary care testing facility was considerably lower compared with the manufacturer's data. Widespread application in such a setting might lead to a considerable number of individuals falsely classified as SARS-CoV-2 negative.
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Affiliation(s)
- Sabrina Jegerlehner
- Department of Emergency Medicine, Inselspital, Bern University Hospital, Bern, Switzerland
| | | | - Philipp Jent
- Department of Infectious Diseases, Bern University Hospital, Bern, Switzerland
| | - Pascal Bittel
- Institute for Infectious Diseases, University of Bern, Bern, Switzerland
| | - Michael Nagler
- University Institute of Clinical Chemistry, Inselspital, Bern University Hospital and University of Bern, Bern, Switzerland.
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17
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Kusejko K, Auñón Á, Jost B, Natividad B, Strahm C, Thurnheer C, Pablo-Marcos D, Slama D, Scanferla G, Uckay I, Waldmann I, Esteban J, Lora-Tamayo J, Clauss M, Fernandez-Sampedro M, Wouthuyzen-Bakker M, Ferrari MC, Gassmann N, Sendi P, Jent P, Morand PC, Vijayvargiya P, Trebše R, Patel R, Kouyos RD, Corvec S, Kramer TS, Stadelmann VA, Achermann Y. The Impact of Surgical Strategy and Rifampin on Treatment Outcome in Cutibacterium Periprosthetic Joint Infections. Clin Infect Dis 2021; 72:e1064-e1073. [PMID: 33300545 DOI: 10.1093/cid/ciaa1839] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2020] [Indexed: 01/19/2023] Open
Abstract
BACKGROUND Cutibacterium species are common pathogens in periprosthetic joint infections (PJI). These infections are often treated with β-lactams or clindamycin as monotherapy, or in combination with rifampin. Clinical evidence supporting the value of adding rifampin for treatment of Cutibacterium PJI is lacking. METHODS In this multicenter retrospective study, we evaluated patients with Cutibacterium PJI and a minimal follow-up of 12 months. The primary endpoint was clinical success, defined by the absence of infection relapse or new infection. We used Fisher's exact tests and Cox proportional hazards models to analyze the effect of rifampin and other factors on clinical success after PJI. RESULTS We included 187 patients (72.2% male, median age 67 years) with a median follow-up of 36 months. The surgical intervention was a 2-stage exchange in 95 (50.8%), 1-stage exchange in 51 (27.3%), debridement and implant retention (DAIR) in 34 (18.2%), and explantation without reimplantation in 7 (3.7%) patients. Rifampin was included in the antibiotic regimen in 81 (43.3%) cases. Infection relapse occurred in 28 (15.0%), and new infection in 13 (7.0%) cases. In the time-to-event analysis, DAIR (adjusted hazard ratio [HR] = 2.15, P = .03) and antibiotic treatment over 6 weeks (adjusted HR = 0.29, P = .0002) significantly influenced treatment failure. We observed a tentative evidence for a beneficial effect of adding rifampin to the antibiotic treatment-though not statistically significant for treatment failure (adjusted HR = 0.5, P = .07) and not for relapses (adjusted HR = 0.5, P = .10). CONCLUSIONS We conclude that a rifampin combination is not markedly superior in Cutibacterium PJI, but a dedicated prospective multicenter study is needed.
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Affiliation(s)
- Katharina Kusejko
- Division of Infectious Diseases and Hospital Epidemiology, University Hospital Zurich, University of Zurich, Zurich, Switzerland
| | | | - Bernhard Jost
- Department of Orthopaedics and Traumatology, Cantonal Hospital St. Gallen, St. Gallen, Switzerland
| | - Benito Natividad
- Hospital de la Santa Creu i Sant Pau, Institut d'Investigació Biomèdica Sant Pau, Departament of Medicine, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Carol Strahm
- Division of Infectious Diseases and Hospital Epidemiology, Cantonal Hospital St. Gallen, St. Gallen, Switzerland
| | - Christine Thurnheer
- Department of Infectious Diseases, Bern University Hospital, University of Bern, Bern, Switzerland
| | | | | | - Giulia Scanferla
- Division of Infectious Diseases and Hospital Epidemiology, Cantonal Hospital St. Gallen, St. Gallen, Switzerland
| | - Ilker Uckay
- University Hospital Zurich, Orthopedic University Hospital Balgrist, Zurich, Switzerland
| | - Isabelle Waldmann
- Division of Infectious Diseases and Hospital Epidemiology, University Hospital Zurich, University of Zurich, Zurich, Switzerland
| | | | | | - Martin Clauss
- Center for Musculoskeletal Infections, Department for Orthopedics and Trauma Surgery, University Hospital Basel, University of Basel, Basel, and Kantonsspital Baselland, Liestal, Switzerland
| | | | - Marjan Wouthuyzen-Bakker
- Department of Medical Microbiology and Infection Prevention, University of Groningen, University Medical Center Groningen, Groningen, the Netherlands
| | - Matteo Carlo Ferrari
- Humanitas Clinical and Research Center -IRCCS and Humanitas University, Department of Biomedical Sciences, Milan, Italy
| | - Natalie Gassmann
- Division of Infectious Diseases and Hospital Epidemiology, University Hospital Zurich, University of Zurich, Zurich, Switzerland
| | - Parham Sendi
- Division of Infectious Diseases and Hospital Epidemiology, University Hospital Basel, University of Basel, Basel, Switzerland
| | - Philipp Jent
- Department of Infectious Diseases, Bern University Hospital, University of Bern, Bern, Switzerland
| | | | | | - Rihard Trebše
- Medical Faculty University of Ljubljana, Valdoltra Orthopedic Hospital, Ankaran, Slovenia
| | | | - Roger D Kouyos
- Division of Infectious Diseases and Hospital Epidemiology, University Hospital Zurich, University of Zurich, Zurich, Switzerland.,Institute of Medical Virology, University of Zurich, Zurich, Switzerland
| | - Stéphane Corvec
- Service de Bactériologie- Hygiène hospitalière, CRCINA, Université de Nantes, Centre Hospitalier Universitaire de Nantes, Nantes, France
| | - Tobias Siegfried Kramer
- Charité Universitätsmedizin Berlin, Berlin, Germany; Evangelisches Waldkrankenhaus Spandau, Berlin, Germany LADR Zentrallabor Dr. Kramer und Kollegen, Geesthacht, Germany
| | | | - Yvonne Achermann
- Division of Infectious Diseases and Hospital Epidemiology, University Hospital Zurich, University of Zurich, Zurich, Switzerland
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18
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Lo Priore E, Livermore DM, Buetti N, Jent P, Pelzer N, Casanova C, Furrer H, Babouee Flury B. Successful Treatment of Acute Prostatitis Caused by Multidrug-Resistant Escherichia coli With Tigecycline Monotherapy. Open Forum Infect Dis 2020; 7:ofz551. [PMID: 31988977 PMCID: PMC6975247 DOI: 10.1093/ofid/ofz551] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2019] [Accepted: 01/07/2020] [Indexed: 11/14/2022] Open
Abstract
We present a successful treatment, with tigecycline monotherapy, of acute prostatitis caused by multidrug-resistant Escherichia coli harboring an NDM-1 carbapemenase along with a CMY-2 cephalosporinase and a TEM ESBL.
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Affiliation(s)
- Elia Lo Priore
- Department of Infectious Diseases, Bern University Hospital, University of Bern, Bern, Switzerland
| | - David M Livermore
- Norwich Medical School, University of East Anglia, Norwich, United Kingdom
| | - Niccolo Buetti
- Department of Infectious Diseases, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Philipp Jent
- Department of Infectious Diseases, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Niklas Pelzer
- UroSwiss AG, Department of Urology, Oberaargau Regional Hospital, Langenthal, Switzerland
| | - Carlo Casanova
- Institute for Infectious Diseases, University of Bern, Bern, Switzerland
| | - Hansjakob Furrer
- Department of Infectious Diseases, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Baharak Babouee Flury
- Department of Infectious Diseases, Bern University Hospital, University of Bern, Bern, Switzerland.,Institute for Infectious Diseases, University of Bern, Bern, Switzerland
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19
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Boschung-Pasquier L, Atkinson A, Kastner LK, Banholzer S, Haschke M, Buetti N, Furrer DI, Hauser C, Jent P, Que YA, Furrer H, Babouee Flury B. Cefepime neurotoxicity: thresholds and risk factors. A retrospective cohort study. Clin Microbiol Infect 2019; 26:333-339. [PMID: 31284030 DOI: 10.1016/j.cmi.2019.06.028] [Citation(s) in RCA: 83] [Impact Index Per Article: 16.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2019] [Revised: 05/27/2019] [Accepted: 06/19/2019] [Indexed: 11/25/2022]
Abstract
OBJECTIVES Toxic serum cefepime trough concentrations are not well defined in the current literature. We aimed to define a more precise plasma trough concentration threshold for this antibiotic's neurological toxicity and to identify individuals at risk for developing neurotoxic side effects. METHODS Retrospective study including all individuals who underwent cefepime therapeutic drug monitoring (TDM) between 2013 and 2017. Individuals with cefepime concentrations other than trough were excluded. The primary outcome was to assess the incidence of neurotoxicity and its relationship with cefepime plasma trough concentrations. Secondary outcomes were the relationship of renal function, cefepime daily dose, age, and cerebral and general co-morbidities with the occurrence of neurotoxicity. We also compared the mortality rate during hospitalization in individuals with and without neurotoxicity, and the possible impact of neuroprotective co-medications on outcomes. RESULTS Cefepime concentrations were determined in 584 individuals. Among 319 individuals with available trough concentrations included, the overall incidence of neurotoxicity was 23.2% (74 of 319 individuals). Higher cefepime plasma trough concentrations were significantly associated with risk of neurotoxicity (no neurotoxicity 6.3 mg/L (interquartile range (IQR) 4.1-8.6) versus with neurotoxicity 21.6 mg/L (IQR 17.0-28.6), p <0.001). Individuals with presumed cefepime neurotoxicity had a significantly lower renal function (estimated glomerular filtration rate 82.0 mL/min/1.73 m2 (IQR 45.0-105.0) versus 35.0 mL/min/1.73 m2 (IQR 23.3-53.3], p <0.001), and significantly higher in-hospital mortality (19 (7.8%) versus 26 (35.1%) individuals, p <0.001). No neurotoxic side effects were seen below a trough concentration of 7.7 mg/L. Levels ≥38.1 mg/L always led to neurological side effects. CONCLUSION In individuals with risk factors for cefepime neurotoxicity, such as renal insufficiency, TDM should be systematically performed, aiming at trough concentrations <7.5 mg/L.
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Affiliation(s)
- L Boschung-Pasquier
- Faculty of Medicine, University of Bern, Bern, Switzerland; Department of Infectious Diseases, Bern University Hospital, University of Bern, Bern, Switzerland; Department of Geriatrics and Rehabilitation, Hôpital Fribourgeois Tavel, Tavel, Switzerland
| | - A Atkinson
- Department of Infectious Diseases, Bern University Hospital, University of Bern, Bern, Switzerland
| | - L K Kastner
- Clinical Pharmacology and Toxicology, Department of General Internal Medicine, Bern University Hospital, University of Bern, Bern, Switzerland
| | - S Banholzer
- Clinical Pharmacology and Toxicology, Department of General Internal Medicine, Bern University Hospital, University of Bern, Bern, Switzerland
| | - M Haschke
- Clinical Pharmacology and Toxicology, Department of General Internal Medicine, Bern University Hospital, University of Bern, Bern, Switzerland
| | - N Buetti
- Department of Infectious Diseases, Bern University Hospital, University of Bern, Bern, Switzerland; UMR 1137 - IAME Team 5 - DeSCID: Decision SCiences in Infectious Diseases, Control and Care Inserm/University Paris Diderot, Sorbonne Paris Cité, Paris, France
| | - D I Furrer
- Insel Data Science Center and Insel Data Coordination Lab, Directorate of Teaching and Research, Bern University Hospital, University of Bern, Bern, Switzerland
| | - C Hauser
- Department of Infectious Diseases, Bern University Hospital, University of Bern, Bern, Switzerland
| | - P Jent
- Department of Infectious Diseases, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Y A Que
- Department of Intensive Care Medicine, Bern University Hospital, University of Bern, Bern, Switzerland
| | - H Furrer
- Department of Infectious Diseases, Bern University Hospital, University of Bern, Bern, Switzerland
| | - B Babouee Flury
- Department of Infectious Diseases, Bern University Hospital, University of Bern, Bern, Switzerland.
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20
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Jent P, Thalmann L, Pabst T, Droz S, Sendi P. Adjunctive gentamicin did not improve outcome of enterococcal bacteraemia in neutropenic patients: a propensity scored matched study. Infect Dis (Lond) 2019; 51:409-416. [PMID: 30821562 DOI: 10.1080/23744235.2019.1581946] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/27/2022] Open
Abstract
BACKGROUND Patients with haematologic malignancies receiving chemotherapy have a high risk of developing febrile neutropenia and bloodstream infections. The benefit of adjunctive gentamicin treatment for enterococcal bloodstream infections is debated. In this study, we compare the treatment outcome of a cell wall-active antibiotic with and without gentamicin for enterococcal bacteraemia in patients with neutropenia. METHODS The observational study was performed from 1999 through 2016. Patients with bacteraemia due to non-high level gentamicin-resistant enterococci were included. Analyses were performed in two data sets of episodes with enterococcal bacteraemia. One data set consisting of all included episodes (full cohort, n = 154) and one with propensity score-matched episodes (n = 96). The primary endpoint was death within 30 days, and the secondary outcomes were defervescence and persistence of enterococcal bloodstream infection after initiation of anti-enterococcal therapy. RESULTS Episodes with gentamicin treatment (n = 82, full cohort; n = 48, propensity score-matched cohort) were comparable with episodes without gentamicin treatment (n = 72, full cohort; n = 48, propensity score-matched cohort) with regard to patient- and disease-related characteristics. Enterococcus faecium (40.9%) was the most frequently isolated organism. In the propensity score-matched cohort, there was no difference in 30-days mortality (14.6% in episodes with gentamicin versus 16.7% in episodes without gentamicin, p = 1), median time to defervescence (1 versus 2 days, p = .37) or persistence of enterococcal bloodstream infection for ≥72 h (9.4% versus 7.5%, p = 1). CONCLUSIONS In our study with neutropenic patients, treatment with a cell wall-active antibiotic without adjunctive gentamicin for episodes with enterococcal bloodstream infection was as effective as combination therapy with gentamicin.
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Affiliation(s)
- Philipp Jent
- a Department of Infectious Diseases , Inselspital, Bern University Hospital, University of Bern , Bern , Switzerland
| | - Laura Thalmann
- b Medical School, Faculty of Medicine , University of Bern , Bern , Switzerland
| | - Thomas Pabst
- c Department of Medical Oncology , Inselspital, Bern University Hospital, University of Bern , Bern , Switzerland
| | - Sara Droz
- d Institute of Infectious Diseases , University of Bern , Bern , Switzerland
| | - Parham Sendi
- a Department of Infectious Diseases , Inselspital, Bern University Hospital, University of Bern , Bern , Switzerland.,d Institute of Infectious Diseases , University of Bern , Bern , Switzerland
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21
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Jent P, Trippel M, Frey M, Pöllinger A, Berezowska S, Langer R, Furrer H, Béguelin C. Fatal Measles Virus Infection After Rituximab-Containing Chemotherapy in a Previously Vaccinated Patient. Open Forum Infect Dis 2018; 5:ofy244. [PMID: 30397623 PMCID: PMC6209686 DOI: 10.1093/ofid/ofy244] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2018] [Accepted: 09/20/2018] [Indexed: 01/11/2023] Open
Abstract
We report the case of a young patient treated with rituximab-containing chemotherapy who was infected with measles despite previous vaccination. Treatment with vitamin A, ribavirin, and immunoglobulins was started; nevertheless he developed severe pneumonitis and deceased. Broad vaccination coverage is crucial in protecting vulnerable subjects.
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Affiliation(s)
- Philipp Jent
- Department of Infectious Diseases, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Mafalda Trippel
- Institute of Pathology, University of Bern, Bern, Switzerland
| | - Manuel Frey
- Department of Intensive Care Medicine, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Alexander Pöllinger
- Department of Radiology, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | | | - Rupert Langer
- Institute of Pathology, University of Bern, Bern, Switzerland
| | - Hansjakob Furrer
- Department of Infectious Diseases, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Charles Béguelin
- Department of Infectious Diseases, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
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22
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Immer FF, Jent P, Englberger L, Stalder M, Gygax E, Carrel TP, Tevaearai HT. Aprotinin in cardiac surgery: a different point of view. Heart Surg Forum 2008; 11:E9-12. [PMID: 18270146 DOI: 10.1532/hsf98.20071149] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Aprotinin is widely used in cardiac surgery to reduce postoperative bleeding and the need for blood transfusion. Controversy exists regarding the influence of aprotinin on renal function and its effect on the incidence of perioperative myocardial infarction (MI) and cerebrovascular incidents (CVI). In the present study, we analyzed the incidence of these adverse events in patients who underwent coronary artery bypass grafting (CABG) surgery under full-dose aprotinin and compared the data with those recently reported by Mangano et al [2006]. For 751 consecutive patients undergoing CABG surgery under full-dose aprotinin (>4 million kalikrein-inhibitor units) we analyzed in-hospital data on renal dysfunction or failure, MI (defined as creatine kinase-myocardial band > 60 iU/L), and CVI (defined as persistent or transient neurological symptoms and/or positive computed tomographic scan). Average age was 67.0 +/- 9.9 years, and patient pre- and perioperative characteristics were similar to those in the Society of Thoracic Surgeons database. The mortality (2.8%) and incidence of renal failure (5.2%) ranged within the reported results. The incidence rates of MI (8% versus 16%; P < .01) and CVI (2% versus 6%; P < .01) however, were significantly lower than those reported by Mangano et al. Thus the data of our single center experience do not confirm the recently reported negative effect of full-dose aprotinin on the incidence of MI and CVI. Therefore, aprotinin may still remain a valid option to reduce postoperative bleeding, especially because of the increased use of aggressive fibrinolytic therapy following percutaneous transluminal coronary angioplasty.
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Affiliation(s)
- Franz F Immer
- Department of Cardiovascular Surgery, University Hospital, Berne, Switzerland.
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23
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Immer FF, Jent P, Englberger L, Stalder M, Eckstein FS, Berdat PA, Carrel TP, Tevaearai H. Aprotinin in CABG-surgery: A different point of view. Thorac Cardiovasc Surg 2007. [DOI: 10.1055/s-2007-967401] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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