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Wrotek A, Wrotek O, Jackowska T. Low Levels of Procalcitonin Are Related to Decreased Antibiotic Use in Children Hospitalized Due to Influenza. Diagnostics (Basel) 2022; 12:diagnostics12051148. [PMID: 35626302 PMCID: PMC9140075 DOI: 10.3390/diagnostics12051148] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2022] [Revised: 04/23/2022] [Accepted: 05/02/2022] [Indexed: 02/04/2023] Open
Abstract
Procalcitonin increases in bacterial infections, which are often suspected (though rarely confirmed) in paediatric influenza. We retrospectively verified procalcitonin’s usefulness in antibiotic guidance in children hospitalized due to laboratory-confirmed influenza. The ROC curve analysis evaluated procalcitonin’s performance in terms of antibiotic implementation or continuation in patients who were naive or had been receiving antibiotic treatment prior to hospital admission. We also assessed the procalcitonin’s usefulness to predict lower-respiratory-tract infections (LRTI), the presence of radiologically confirmed pneumonia, an intensive care unit transfer and a fatal outcome. Multiple regression models were built to verify the previously reported procalcitonin cut-off values. The study enrolled 371 children (median age 33 months). The AUC (area under the curve) for antibiotic implementation reached 0.66 (95%CI: 0.58–0.73) and 0.713 (95%CI: 0.6–0.83) for antibiotic continuation; optimal cut-offs (0.4 and 0.23 ng/mL, respectively) resulted in a negative predictive value (NPV) of 79.7% (95%CI: 76.2–82.9%) and 54.6% (95%CI: 45.8–63%), respectively. The use of 0.25 ng/mL as a reference decreased the odds of antibiotic treatment by 67% (95%CI: 43–81%) and 91% (95%CI: 56–98%), respectively. Procalcitonin showed lower AUC for the prediction of LRTI and pneumonia (0.6, 95%CI: 0.53–0.66, and 0.63, 95%CI: 0.56–0.7, respectively), with a moderately high NPV in the latter case (83%, 95%CI: 79.3–86.1%). Procalcitonin use may decrease the antibiotic frequency in hospitalized influenza cases both in terms of antibiotic administration and continuation. Procalcitonin concentrations may suggest bacterial suprainfections at lower concentrations than in adults, and a focus on its rule-out value is of special interest.
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Affiliation(s)
- August Wrotek
- Department of Pediatrics, Centre of Postgraduate Medical Education, Marymoncka 99/103, 01-813 Warsaw, Poland
- Department of Pediatrics, Bielanski Hospital, Cegłowska 80, 01-809 Warsaw, Poland
- Correspondence: (A.W.); (T.J.); Tel.: +48-864-1167 (T.J.)
| | - Oliwia Wrotek
- Student Research Group at the Bielanski Hospital, 01-809 Warsaw, Poland;
| | - Teresa Jackowska
- Department of Pediatrics, Centre of Postgraduate Medical Education, Marymoncka 99/103, 01-813 Warsaw, Poland
- Department of Pediatrics, Bielanski Hospital, Cegłowska 80, 01-809 Warsaw, Poland
- Correspondence: (A.W.); (T.J.); Tel.: +48-864-1167 (T.J.)
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Voiriot G, Fartoukh M, Durand-Zaleski I, Berard L, Rousseau A, Armand-Lefevre L, Verdet C, Argaud L, Klouche K, Megarbane B, Patrier J, Richard JC, Reignier J, Schwebel C, Souweine B, Tandjaoui-Lambiotte Y, Simon T, Timsit JF. Combined use of a broad-panel respiratory multiplex PCR and procalcitonin to reduce duration of antibiotics exposure in patients with severe community-acquired pneumonia (MULTI-CAP): a multicentre, parallel-group, open-label, individual randomised trial conducted in French intensive care units. BMJ Open 2021; 11:e048187. [PMID: 34408046 PMCID: PMC8375718 DOI: 10.1136/bmjopen-2020-048187] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
INTRODUCTION At the time of the worrying emergence and spread of bacterial resistance, reducing the selection pressure by reducing the exposure to antibiotics in patients with community-acquired pneumonia (CAP) is a public health issue. In this context, the combined use of molecular tests and biomarkers for guiding antibiotics discontinuation is attractive. Therefore, we have designed a trial comparing an integrated approach of diagnosis and treatment of severe CAP to usual care. METHODS AND ANALYSIS The multiplex PCR and procalcitonin to reduce duration of antibiotics exposure in patients with severe-CAP (MULTI-CAP) trial is a multicentre (n=20), parallel-group, superiority, open-label, randomised trial. Patients are included if adult admitted to intensive care unit for a CAP. Diagnosis of pneumonia is based on clinical criteria and a newly appeared parenchymal infiltrate. Immunocompromised patients are excluded. Subjects are randomised (1:1 ratio) to either the intervention arm (experimental strategy) or the control arm (usual strategy). In the intervention arm, the microbiological diagnosis combines a respiratory multiplex PCR (mPCR) and conventional microbiological investigations. An algorithm of early antibiotic de-escalation or discontinuation is recommended, based on mPCR results and the procalcitonin value. In the control arm, only conventional microbiological investigations are performed and antibiotics de-escalation remains at the clinician's discretion. The primary endpoint is the number of days alive without any antibiotic from the randomisation to day 28. Based on our hypothesis of 2 days gain in the intervention arm, we aim to enrol a total of 450 patients over a 30-month period. ETHICS AND DISSEMINATION The MULTI-CAP trial is conducted according to the principles of the Declaration of Helsinki, is registered in Clinical Trials and has been approved by the Committee for Protection of Persons and the National French Drug Safety Agency. Written informed consents are obtained from all the patients (or representatives). The results will be disseminated through educational institutions, submitted to peer-reviewed journals for publication and presented at medical congresses. TRIAL REGISTRATION NUMBER NCT03452826; Pre-results.
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Affiliation(s)
- Guillaume Voiriot
- Service de Médecine Intensive Réanimation, Assistance Publique-Hopitaux de Paris, Paris, France
| | - Muriel Fartoukh
- Service de Médecine Intensive Réanimation, Assistance Publique-Hopitaux de Paris, Paris, France
| | | | - Laurence Berard
- Unité de Recherche Clinique de l'Est Parisien, Assistance Publique-Hopitaux de Paris, Paris, Île-de-France, France
| | - Alexandra Rousseau
- Unité de Recherche Clinique de l'Est Parisien, Assistance Publique-Hopitaux de Paris, Paris, Île-de-France, France
| | - Laurence Armand-Lefevre
- Département de Microbiologie, Hôpital Bichat, Assistance Publique-Hopitaux de Paris, Paris, Île-de-France, France
| | - Charlotte Verdet
- Département de Microbiologie, Hôpital Saint-Antoine, Assistance Publique-Hopitaux de Paris, Paris, Île-de-France, France
| | - Laurent Argaud
- Service de Médecine Intensive-Réanimation, Hôpital Edouard Herriot, Université de Lyon, Lyon, France
| | - Kada Klouche
- Intensive Care Medicine Department, Universite de Montpellier, Montpellier, France
| | - Bruno Megarbane
- Service de Médecine Intensive Réanimation, Hôpital Lariboisière, Assistance Publique-Hopitaux de Paris, Paris, Île-de-France, France
| | - Juliette Patrier
- Service de Réanimation Infectieuse, Hôpital Bichat, Assistance Publique-Hopitaux de Paris, Paris, Île-de-France, France
| | - Jean-Christophe Richard
- Service de Médecine Intensive Réanimation, Hôpital de la Croix-Rousse, Université de Lyon, Lyon, France
| | - Jean Reignier
- Médecine intensive réanimation, CHU Nantes, Nantes, Pays de la Loire, France
| | - Carole Schwebel
- Service de Médecine Intensive Réanimation, CHU Grenoble Alpes, Grenoble, Auvergne-Rhone-Alpes, France
| | - Bertrand Souweine
- Medical Intensive Care Unit, CHU Gabriel-Montpied, Clermont-Ferrand, France
| | - Yacine Tandjaoui-Lambiotte
- Service de Réanimation médico-chirurgicale, Hôpital Avicennes, Assistance Publique-Hopitaux de Paris, Paris, Île-de-France, France
| | - Tabassome Simon
- Clinical Research Platform (URC-CRB-CRC), Assistance Publique-Hôpitaux de Paris, Saint Antoine Hospital, Paris, France
- Clinical Pharmacology-Research Platform, Université Pierre et Marie Curie, Paris, France
| | - Jean-François Timsit
- Service de Réanimation Infectieuse, Hôpital Bichat, Assistance Publique-Hopitaux de Paris, Paris, Île-de-France, France
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Cillóniz C, Civljak R, Nicolini A, Torres A. Polymicrobial community-acquired pneumonia: An emerging entity. Respirology 2015; 21:65-75. [PMID: 26494527 DOI: 10.1111/resp.12663] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2015] [Revised: 07/21/2015] [Accepted: 07/28/2015] [Indexed: 12/13/2022]
Abstract
Polymicrobial aetiology in community-acquired pneumonia (CAP) is more common than previously recognized. This growing new entity can influence inflammation, host immunity and disease outcomes in CAP patients. However, the true incidence is complicated to determine and probably underestimated due mainly to many cases going undetected, particularly in the outpatient setting, as the diagnostic yield is restricted by the sensitivity of currently available microbiologic tests and the ability to get certain types of clinical specimens. The observed rate of polymicrobial cases may also lead to new antibiotic therapy considerations. In this review, we discuss the pathogenesis, microbial interactions in pneumonia, epidemiology, biomarkers and antibiotic therapy for polymicrobial CAP.
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Affiliation(s)
- Catia Cillóniz
- Department of Pneumology, Thorax Institute, Hospital Clinic of Barcelona-August Pi i Sunyer Biomedical Research Institute (IDIBAPS), University of Barcelona (UB)-SGR 911-, Ciber de Enfermedades Respiratorias (Ciberes), Barcelona, Spain
| | - Rok Civljak
- University of Zagreb School of Medicine, 'Dr. Fran Mihaljevic' University Hospital for Infectious Diseases, Zagreb, Croatia
| | | | - Antoni Torres
- Department of Pneumology, Thorax Institute, Hospital Clinic of Barcelona-August Pi i Sunyer Biomedical Research Institute (IDIBAPS), University of Barcelona (UB)-SGR 911-, Ciber de Enfermedades Respiratorias (Ciberes), Barcelona, Spain
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Bello S, Mincholé E, Fandos S, Lasierra AB, Ruiz MA, Simon AL, Panadero C, Lapresta C, Menendez R, Torres A. Inflammatory response in mixed viral-bacterial community-acquired pneumonia. BMC Pulm Med 2014; 14:123. [PMID: 25073709 PMCID: PMC4118651 DOI: 10.1186/1471-2466-14-123] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2013] [Accepted: 07/23/2014] [Indexed: 11/20/2022] Open
Abstract
Background The role of mixed pneumonia (virus + bacteria) in community-acquired pneumonia (CAP) has been described in recent years. However, it is not known whether the systemic inflammatory profile is different compared to monomicrobial CAP. We wanted to investigate this profile of mixed viral-bacterial infection and to compare it to monomicrobial bacterial or viral CAP. Methods We measured baseline serum procalcitonin (PCT), C reactive protein (CRP), and white blood cell (WBC) count in 171 patients with CAP with definite etiology admitted to a tertiary hospital: 59 (34.5%) bacterial, 66 (39.%) viral and 46 (27%) mixed (viral-bacterial). Results Serum PCT levels were higher in mixed and bacterial CAP compared to viral CAP. CRP levels were higher in mixed CAP compared to the other groups. CRP was independently associated with mixed CAP. CRP levels below 26 mg/dL were indicative of an etiology other than mixed in 83% of cases, but the positive predictive value was 45%. PCT levels over 2.10 ng/mL had a positive predictive value for bacterial-involved CAP versus viral CAP of 78%, but the negative predictive value was 48%. Conclusions Mixed CAP has a different inflammatory pattern compared to bacterial or viral CAP. High CRP levels may be useful for clinicians to suspect mixed CAP.
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Affiliation(s)
- Salvador Bello
- Servicio de Neumologia, Hospital Universitario Miguel Servet, Paseo Isabel La Católica, 1-3, 50009 Zaragoza, Spain.
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Pfister R, Kochanek M, Leygeber T, Brun-Buisson C, Cuquemelle E, Machado MB, Piacentini E, Hammond NE, Ingram PR, Michels G. Procalcitonin for diagnosis of bacterial pneumonia in critically ill patients during 2009 H1N1 influenza pandemic: a prospective cohort study, systematic review and individual patient data meta-analysis. CRITICAL CARE : THE OFFICIAL JOURNAL OF THE CRITICAL CARE FORUM 2014; 18:R44. [PMID: 24612487 PMCID: PMC4056761 DOI: 10.1186/cc13760] [Citation(s) in RCA: 74] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/19/2013] [Accepted: 03/06/2014] [Indexed: 12/23/2022]
Abstract
Introduction Procalcitonin (PCT) is helpful for diagnosing bacterial infections. The diagnostic utility of PCT has not been examined thoroughly in critically ill patients with suspected H1N1 influenza. Methods Clinical characteristics and PCT were prospectively assessed in 46 patients with pneumonia admitted to medical ICUs during the 2009 and 2010 influenza seasons. An individual patient data meta-analysis was performed by combining our data with data from five other studies on the diagnostic utility of PCT in ICU patients with suspected 2009 pandemic influenza A(H1N1) virus infection identified by performing a systematic literature search. Results PCT levels, measured within 24 hours of ICU admission, were significantly elevated in patients with bacterial pneumonia (isolated or coinfection with H1N1; n = 77) (median = 6.2 μg/L, interquartile range (IQR) = 0.9 to 20) than in patients with isolated H1N1 influenza pneumonia (n = 84; median = 0.56 μg/L, IQR = 0.18 to 3.33). The area under the curve of the receiver operating characteristic curve of PCT was 0.72 (95% confidence interval (CI) = 0.64 to 0.80; P < 0.0001) for diagnosis of bacterial pneumonia, but increased to 0.76 (95% CI = 0.68 to 0.85; P < 0.0001) when patients with hospital-acquired pneumonia and immune-compromising disorders were excluded. PCT at a cut-off of 0.5 μg/L had a sensitivity (95% CI) and a negative predictive value of 80.5% (69.9 to 88.7) and 73.2% (59.7 to 84.2) for diagnosis of bacterial pneumonia, respectively, which increased to 85.5% (73.3 to 93.5) and 82.2% (68.0 to 92.0) in patients without hospital acquired pneumonia or immune-compromising disorder. Conclusions In critically ill patients with pneumonia during the influenza season, PCT is a reasonably accurate marker for detection of bacterial pneumonia, particularly in patients with community-acquired disease and without immune-compromising disorders, but it might not be sufficient as a stand-alone marker for withholding antibiotic treatment.
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Abstract
PURPOSE OF REVIEW Shortly after the advent of severe acute respiratory syndrome and the avian influenza, the emergence of the influenza A(H1N1)2009 pandemic caused significant vibrations to the public health authorities and stressed the health systems worldwide. We sought to investigate whether this experience has altered our knowledge and our current and future practice on the management of severe acute respiratory infections (SARI) and community-acquired pneumonia. RECENT FINDINGS A changing epidemiology was demonstrated, with obesity and pregnancy beyond established risk groups for influenza A, other clinical syndromes beyond primary viral pneumonia, possible coinfections by other viral beyond bacterial pathogens and a disappointing performance of all available severity assessment tools. On the treatment topic, accumulating evidence suggesting worse outcomes argues against the use of corticosteroids, but some noninvasive ventilating modalities require further assessment. SUMMARY The recent influenza A(H1N1)2009 pandemic has highlighted our weaknesses relating to the diagnosis and assessment of severity of SARI, compromising early treatment and ultimate outcomes; further research based on this experience will help to improve prognosis and boost our future preparedness. An important message is the necessity of international collaboration for the rapid dissemination of locally acquired knowledge.
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Wunderink RG, Waterer GW, Rello J. The Value of Procalcitonin in CAP Remains Unclear. Am J Respir Crit Care Med 2011; 184:1210; author reply 1210-1. [DOI: 10.1164/ajrccm.184.10.1210a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Affiliation(s)
| | - Grant W. Waterer
- University of Western AustraliaPerth, Western Australia, AustraliaandNorthwestern University Feinberg School of MedicineChicago, Illinois
| | - Jordi Rello
- Vall d’Hebron University HospitalBarcelona, Spain
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