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Jacquier H, Péan de Ponfilly G, Chauvin A, Amarsy R, Benmansour H, Hoang-Nguyen DT, Lecorché E, Mesnil C, Mougari F, Munier AL, Salmona M, Berçot B, Le Goff J, Cambau E. Impact of a 24/7 Rapid Molecular Assay for Influenza Detection on the Prescription of Oseltamivir. Open Forum Infect Dis 2020; 7:ofaa374. [PMID: 32968690 PMCID: PMC7494179 DOI: 10.1093/ofid/ofaa374] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2020] [Accepted: 08/21/2020] [Indexed: 11/13/2022] Open
Abstract
We assessed the impact of a rapid molecular assay for influenza detection whether outsourced or performed onsite 24/7 in a University Hospital in Paris, France. Shorter median time-to-results (16.8 vs 2.3 hours, P < .05) and an increased rate of adequate prescription of oseltamivir (76.6% vs 95.3%, P < .05) were observed.
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Affiliation(s)
- Hervé Jacquier
- Laboratory of Microbiology, Infectious Agents Department, Saint Louis-Lariboisiere-Fernand Widal Hospital Group, Assistance Publique-Hôpitaux de Paris (APHP), Paris, France.,Université de Paris, IAME, UMR 1137, INSERM, Paris, France
| | - Gauthier Péan de Ponfilly
- Laboratory of Microbiology, Infectious Agents Department, Saint Louis-Lariboisiere-Fernand Widal Hospital Group, Assistance Publique-Hôpitaux de Paris (APHP), Paris, France
| | - Anthony Chauvin
- Emergency Department, Saint Louis-Lariboisiere-Fernand Widal Hospital Group, APHP, Paris, France
| | - Rishma Amarsy
- Infection Control Department, Saint Louis-Lariboisiere-Fernand Widal Hospital Group, APHP, Paris, France
| | - Hana Benmansour
- Laboratory of Microbiology, Infectious Agents Department, Saint Louis-Lariboisiere-Fernand Widal Hospital Group, Assistance Publique-Hôpitaux de Paris (APHP), Paris, France
| | | | - Emmanuel Lecorché
- Laboratory of Microbiology, Infectious Agents Department, Saint Louis-Lariboisiere-Fernand Widal Hospital Group, Assistance Publique-Hôpitaux de Paris (APHP), Paris, France.,Université de Paris, IAME, UMR 1137, INSERM, Paris, France
| | - Céline Mesnil
- Emergency Department, Saint Louis-Lariboisiere-Fernand Widal Hospital Group, APHP, Paris, France
| | - Faiza Mougari
- Laboratory of Microbiology, Infectious Agents Department, Saint Louis-Lariboisiere-Fernand Widal Hospital Group, Assistance Publique-Hôpitaux de Paris (APHP), Paris, France.,Université de Paris, IAME, UMR 1137, INSERM, Paris, France
| | - Anne-Lise Munier
- Department of Infectious Diseases, Saint Louis-Lariboisiere-Fernand Widal University Hospital, APHP, Paris, France
| | - Maud Salmona
- Unit of Virology and Graft, Infectious Agents Department, Saint Louis-Lariboisiere-Fernand Widal University Hospital, APHP, Paris, France
| | - Béatrice Berçot
- Laboratory of Microbiology, Infectious Agents Department, Saint Louis-Lariboisiere-Fernand Widal Hospital Group, Assistance Publique-Hôpitaux de Paris (APHP), Paris, France
| | - Jérôme Le Goff
- Unit of Virology and Graft, Infectious Agents Department, Saint Louis-Lariboisiere-Fernand Widal University Hospital, APHP, Paris, France.,Université de Paris, INSERM U976, team INSIGHT, Paris, France
| | - Emmanuelle Cambau
- Laboratory of Microbiology, Infectious Agents Department, Saint Louis-Lariboisiere-Fernand Widal Hospital Group, Assistance Publique-Hôpitaux de Paris (APHP), Paris, France.,Université de Paris, IAME, UMR 1137, INSERM, Paris, France
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Is there a clinical difference between influenza A and B virus infections in hospitalized patients? : Results after routine polymerase chain reaction point-of-care testing in the emergency room from 2017/2018. Wien Klin Wochenschr 2019; 131:362-368. [PMID: 31214922 PMCID: PMC7101895 DOI: 10.1007/s00508-019-1519-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2019] [Accepted: 05/25/2019] [Indexed: 12/25/2022]
Abstract
PURPOSE The clinical presentation, complications and mortality in molecularly confirmed influenza A and B infections were analyzed. METHODS This retrospective observational single-centre study included all influenza positive patients older than 18 years who were hospitalized and treated at the flu isolation ward during 2017/2018. The diagnosis was based on point-of-care tests with the AlereTM. RESULTS Of the 396 patients tested positive for influenza, 24.2% had influenza A and 75.8% influenza B. Influenza A patients were younger (median age 67.5 years vs. 77 years, p < 0.001), were more often smokers (27.7% vs. 16.8%, p = 0.021), had chronic pulmonary diseases more frequently (39.6% vs. 26.3%, p = 0.013), presented with a higher body temperature (38.6 °C vs. 38.3 °C, p = 0.004), leucocyte count (8 G/L vs. 6.8 G/L, p = 0.002), C‑reactive protein (CRP) level (41 mg/l vs. 23 mg/l, p < 0.001) and had dyspnea more often (41.7% vs. 28%, p = 0.012). Influenza B patients had an underlying chronic kidney disease in 37% vs. 18.8% (p < 0.001) and presented with vomiting on admission more frequently (21.7% vs. 11.5%, p = 0.027). Influenza A patients were admitted for 8 days vs. 7 days (p = 0.023). There were no differences in the rate of complications; however, 22 (5.6%) patients died during the hospital stay. The in-hospital mortality was higher in influenza A patients (8.3% vs 4.7%, p = 0.172). CONCLUSION Some differences were found between influenza A and B virus infections but symptoms were overlapping, which necessitates polymerase chain reaction point-of-care testing for accurate diagnosis. Influenza A was a more severe disease than influenza B during the period 2017/2018.
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Trabattoni E, Le V, Pilmis B, Pean de Ponfilly G, Caisso C, Couzigou C, Vidal B, Mizrahi A, Ganansia O, Le Monnier A, Lina B, Nguyen Van JC. Implementation of Alere i Influenza A & B point of care test for the diagnosis of influenza in an ED. Am J Emerg Med 2017; 36:916-921. [PMID: 29137903 DOI: 10.1016/j.ajem.2017.10.046] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2017] [Revised: 09/28/2017] [Accepted: 10/18/2017] [Indexed: 01/26/2023] Open
Abstract
STUDY OBJECTIVE This study aimed to evaluate the impact of implementing rapid point-of-care testing (POCT) with the Alere i Influenza A & B in an emergency department (ED) during an influenza epidemic. METHODS Direct nasal swabs were prospectively collected following the physical examination of patients aged >18years who presented to the ED of a tertiary hospital in France with influenza-like illness (ILI) symptoms (N=301) between February 1st and March 31st, 2016, which coincided with an influenza epidemic. Laboratory-based testing (standard of care) was used to obtain a diagnosis in February 2016 (pre-POCT cohort) and positive results were confirmed using polymerase chain reaction. The primary endpoint was patient time in the ED. RESULTS A total of 169 and 132 patients participated in the pre-POCT phase and POCT phase respectively. A significantly higher proportion of patients received a positive diagnosis in the POCT cohort compared with the pre-POCT cohort (31% versus 5.3%, P<0.01). Mean time spent in the ED and hospitalization rate were significantly lower in the POCT cohort (6.06h versus 4.15h, P=0.03, and 44.4% versus 9.7%, P=0.02, respectively). Despite similar rates in the prescription of antibiotics and antiviral therapies, the proportion of patients who were referred for additional tests was significantly lower in the POCT cohort (78.1% versus 62.1%, P=0.003, and 80.5% versus 63.6%, P=0.01, respectively). CONCLUSIONS The Alere i Influenza A & B POCT reduced the length of stay in ED, the hospitalization rates, and the number of additional diagnostic tests compared with standard of care testing.
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Affiliation(s)
- E Trabattoni
- Service des Urgences, Groupe Hospitalier Paris Saint-Joseph, Paris, France
| | - V Le
- Service de Microbiologie Clinique, Groupe Hospitalier Paris Saint-Joseph, Paris, France
| | - B Pilmis
- Equipe Mobile de Microbiologie Clinique, Groupe Hospitalier Paris Saint-Joseph, Paris, France
| | - G Pean de Ponfilly
- Service de Microbiologie Clinique, Groupe Hospitalier Paris Saint-Joseph, Paris, France
| | - C Caisso
- Service des Urgences, Groupe Hospitalier Paris Saint-Joseph, Paris, France
| | - C Couzigou
- Equipe Mobile de Microbiologie Clinique, Groupe Hospitalier Paris Saint-Joseph, Paris, France; Equipe Opérationnelle d'Hygiène, Groupe Hospitalier Paris Saint-Joseph, Paris, France
| | - B Vidal
- Equipe Mobile de Microbiologie Clinique, Groupe Hospitalier Paris Saint-Joseph, Paris, France; Equipe Opérationnelle d'Hygiène, Groupe Hospitalier Paris Saint-Joseph, Paris, France
| | - A Mizrahi
- Service de Microbiologie Clinique, Groupe Hospitalier Paris Saint-Joseph, Paris, France
| | - O Ganansia
- Service des Urgences, Groupe Hospitalier Paris Saint-Joseph, Paris, France
| | - A Le Monnier
- Service de Microbiologie Clinique, Groupe Hospitalier Paris Saint-Joseph, Paris, France
| | - B Lina
- Laboratoire de Virologie Centre National de Référence des Virus Influenzae, Hôpital de la Croix Rousse, Lyon, France
| | - J C Nguyen Van
- Service de Microbiologie Clinique, Groupe Hospitalier Paris Saint-Joseph, Paris, France.
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Wolkewitz M, Schumacher M. Neuraminidase Inhibitors and Hospital Mortality in British Patients with H1N1 Influenza A: A Re-Analysis of Observational Data. PLoS One 2016; 11:e0160430. [PMID: 27583403 PMCID: PMC5008789 DOI: 10.1371/journal.pone.0160430] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2016] [Accepted: 07/19/2016] [Indexed: 01/17/2023] Open
Abstract
Background Observational studies claimed reducing effects of neuraminidase inhibitors (NI) on hospital mortality in patients with H1N1 influenza A. It has been criticized that such findings are prone to common and serious survival biases. Methods With observational data from the FLU-CIN study group, multi-state and dynamic prediction models have been used to avoid such biases. The data included 1391 patients with confirmed pandemic influenza A/H1N1 infection collected during 2009-2010 in the UK. Due to their close relationship, the main outcome measures were hospital death and length of hospital stay. Findings There is no direct effect of NI on the hospital death rate; the hazard ratio (HR) of NI was 1.03 (95%-CI: 0.64–1.66). The discharge rate is increased for NI patients (HR = 1.89 (95%-CI: 1.65–2.16)) indicating that NI-treated patients stay shorter in hospital than NI-untreated patients, on average 3.10 days (95%-CI: 2.07–4.14). We also showed that the initiation timing of NI treatment (≤ 2 days versus > 2 days after onset) made no difference on the effects on the hospital death and discharge hazards. The hazard ratios remain stable after adjusting for potential confounders measured at admission (such as comorbidities and influenza-related clinical symptoms). Conclusions The potential beneficial effect of NI on hospitalized patients in the UK is rather a reduction of the length of hospital stay than a reduction of the mortality rate. There seems to be no confounding by indication and no differences if NI is given early or late. Different effects could be present in other populations (such as non-hospitalized individuals) or countries. Careful interpretation of the effect on length of hospital stay is needed due to potentially different discharge policies of NI-treated and NI-untreated patients.
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Affiliation(s)
- Martin Wolkewitz
- Center for Medical Biometry and Medical Informatics, Institute for Medical Biometry and Statistics, Medical Center University of Freiburg, Freiburg, Germany
- * E-mail:
| | - Martin Schumacher
- Center for Medical Biometry and Medical Informatics, Institute for Medical Biometry and Statistics, Medical Center University of Freiburg, Freiburg, Germany
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Prospective evaluation of the Alere i Influenza A&B nucleic acid amplification versus Xpert Flu/RSV. Diagn Microbiol Infect Dis 2015; 85:19-22. [PMID: 26899154 DOI: 10.1016/j.diagmicrobio.2015.11.012] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2015] [Revised: 10/13/2015] [Accepted: 11/13/2015] [Indexed: 11/22/2022]
Abstract
The rapid and accurate detection of influenza virus in respiratory specimens is required for optimal management of patients with acute respiratory infections. Because of the variability of the symptoms and the numerous other causes of influenza-like illness, the diagnosis of influenza cannot be made on the basis of clinical criteria alone. Thus, rapid influenza diagnostic tests have been developed such as the Alere i Influenza A&B isothermal nucleic acid assay. We prospectively evaluated the performance of the Alere i Influenza A&B assay in comparison with our routine Xpert Flu/RSV assay. Positive samples were subtyped according to the protocol from the National Influenza Center (Paris, France). A total of 96 respiratory nasal swab samples were analyzed: with both methods, 38 were positive and 56 were negative. Samples were prospectively collected from January 20 to April 8, 2015, from patient (86 adult and 10 pediatric patients) presenting with an influenza-like illness through the French influenza season. In comparison with the Xpert Flu/RSV assay, the overall sensitivity and specificity of the Alere i Influenza A&B assay were 95% and 100%, respectively. Our results indicate that the Alere i Influenza A&B assay has a good overall analytical performance and a high degree of concordance with the PCR-based Xpert Flu/RSV assay. The Alere i Influenza A&B isothermal nucleic acid amplification test is a powerful tool for influenza detection due to its high sensitivity and specificity as well as its ability to generate results within 15min.
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Glatthaar-Saalmüller B, Fal AM, Schönknecht K, Conrad F, Sievers H, Saalmüller A. Antiviral activity of an aqueous extract derived from Aloe arborescens Mill. against a broad panel of viruses causing infections of the upper respiratory tract. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2015; 22:911-20. [PMID: 26321740 PMCID: PMC7127631 DOI: 10.1016/j.phymed.2015.06.006] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/21/2014] [Revised: 06/15/2015] [Accepted: 06/16/2015] [Indexed: 05/30/2023]
Abstract
BACKGROUND A number of antiviral therapies have evolved that may be effectively administered to treat respiratory viral diseases. But these therapies are very often of limited efficacy or have severe side effects. Therefore there is great interest in developing new efficacious and safe antiviral compounds e.g. based on the identification of compounds of herbal origin. HYPOTHESIS Since an aqueous extract of Aloe arborescens Mill. shows antiviral activity against viruses causing infections of the upper respiratory tract in vitro we hypothesised that a product containing it such as Biaron C(®) could have an antiviral activity too. STUDY DESIGN Antiviral activity of Bioaron C(®), an herbal medicinal product consisting of an aqueous extract of Aloe arborescens Mill., Vitamin C, and Aronia melanocarpa Elliot. succus, added as an excipient, was tested in vitro against a broad panel of viruses involved in upper respiratory tract infections. METHODS These studies included human adenovirus and several RNA viruses and were performed either with plaque reduction assays or with tests for the detection of a virus-caused cytopathic effect. RESULTS Our studies demonstrated an impressive activity of Bioaron C(®) against members of the orthomyxoviridae - influenza A and influenza B viruses. Replication of both analysed influenza A virus strains - H1N1 and H3N2 - as well as replication of two analysed influenza B viruses - strains Yamagatal and Beiying - was significantly reduced after addition of Bioaron C(®) to the infected cell cultures. In contrast antiviral activity of Bioaron C(®) against other RNA viruses showed a heterogeneous pattern. Bioaron C(®) inhibited the replication of human rhinovirus and coxsackievirus, both viruses belonging to the family of picornaviridae and both representing non-enveloped RNA viruses. In vitro infections with respiratory syncytial virus and parainfluenza virus, both belonging to the paramyxoviridae, were only poorly blocked by the test substance. No antiviral activity of Bioaron C(®) was detected against adenovirus - a non-enveloped DNA virus. CONCLUSIONS These results represent the first proof of a selective antiviral activity of Bioaron C(®) against influenza viruses and create basis for further analyses of type and molecular mechanisms of the antiviral activity of this herbal medicine.
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Affiliation(s)
- B Glatthaar-Saalmüller
- Labor Dr. Glatthaar, Beim Braunland 1, D-88416 Ochsenhausen, Germany; Institute of Immunology, Department of Pathobiology, University of Veterinary Medicine Vienna, Veterinärplatz 1, A-1210 Vienna, Austria
| | - A M Fal
- Department of Public Health at Wrocław Medical University, Wrocław, Poland ; Clinic of Internal Diseases and Allergology CSK MSW in Warsaw, Warsaw, Poland
| | - K Schönknecht
- Phytopharm Klęka S.A., Nowe Miasto nad Wartą, Poland
| | - F Conrad
- PhytoLab GmbH & Co KG, Dutendorfer Str. 5-7, D-91487 Vestenbergsreuth, Germany
| | - H Sievers
- PhytoLab GmbH & Co KG, Dutendorfer Str. 5-7, D-91487 Vestenbergsreuth, Germany
| | - A Saalmüller
- Institute of Immunology, Department of Pathobiology, University of Veterinary Medicine Vienna, Veterinärplatz 1, A-1210 Vienna, Austria.
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Paul M, Leibovici L. On neuraminidase inhibitors and evidence-based medicine. Clin Microbiol Infect 2015; 21:214-6. [DOI: 10.1016/j.cmi.2015.01.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2015] [Accepted: 01/15/2015] [Indexed: 11/28/2022]
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Kim JE, Kim UJ, Kim HK, Cho SK, An JH, Kang SJ, Park KH, Jung SI, Jang HC. Predictors of viral pneumonia in patients with community-acquired pneumonia. PLoS One 2014; 9:e114710. [PMID: 25531901 PMCID: PMC4273967 DOI: 10.1371/journal.pone.0114710] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2014] [Accepted: 11/12/2014] [Indexed: 12/03/2022] Open
Abstract
BACKGROUND Viruses are increasingly recognized as major causes of community-acquired pneumonia (CAP). Few studies have investigated the clinical predictors of viral pneumonia, and the results have been inconsistent. In this study, the clinical predictors of viral pneumonia were investigated in terms of their utility as indicators for viral pneumonia in patients with CAP. METHODS Adult patients (≥ 18 years old) with CAP, tested by polymerase chain reaction (PCR) for respiratory virus, at two teaching hospitals between October 2010 and May 2013, were identified retrospectively. Demographic and clinical data were collected by reviewing the hospital electronic medical records. RESULTS During the study period, 456 patients with CAP were identified who met the definition, and 327 (72%) patients were tested using the respiratory virus PCR detection test. Viral pneumonia (n = 60) was associated with rhinorrhea, a higher lymphocyte fraction in the white blood cells, lower serum creatinine and ground-glass opacity (GGO) in radiology results, compared to non-viral pneumonia (n = 250) (p < 0.05, each). In a multivariate analysis, rhinorrhea (Odd ratio (OR) 3.52; 95% Confidence interval (CI), 1.58-7.87) and GGO (OR 4.68; 95% CI, 2.48-8.89) were revealed as independent risk factors for viral pneumonia in patients with CAP. The sensitivity, specificity, positive- and negative-predictive values (PPV and NPV) of rhinorrhea were 22, 91, 36 and 83%: the sensitivity, specificity, PPV and NPV of GGO were and 43, 84, 40 and 86%, respectively. CONCLUSION Symptom of rhinorrhea and GGO predicted viral pneumonia in patients with CAP. The high specificity of rhinorrhea and GGO suggested that these could be useful indicators for empirical antiviral therapy.
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Affiliation(s)
- Ji Eun Kim
- Department of Internal Medicine, Chonnam National University Medical School, Gwang-ju, Republic of Korea
| | - Uh Jin Kim
- Department of Internal Medicine, Chonnam National University Medical School, Gwang-ju, Republic of Korea
| | - Hee Kyung Kim
- Department of Internal Medicine, Chonnam National University Medical School, Gwang-ju, Republic of Korea
| | - Soo Kyung Cho
- Department of Internal Medicine, Chonnam National University Medical School, Gwang-ju, Republic of Korea
| | - Joon Hwan An
- Department of Internal Medicine, Chonnam National University Medical School, Gwang-ju, Republic of Korea
| | - Seung-Ji Kang
- Department of Internal Medicine, Chonnam National University Medical School, Gwang-ju, Republic of Korea
| | - Kyung-Hwa Park
- Department of Internal Medicine, Chonnam National University Medical School, Gwang-ju, Republic of Korea
| | - Sook-In Jung
- Department of Internal Medicine, Chonnam National University Medical School, Gwang-ju, Republic of Korea
| | - Hee-Chang Jang
- Department of Internal Medicine, Chonnam National University Medical School, Gwang-ju, Republic of Korea
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