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Sebillotte M, Boutoille D, Declerck C, Talarmin JP, Lemaignen A, Piau C, Revest M, Tattevin P, Gousseff M. Non-HACEK gram-negative bacilli endocarditis: a multicentre retrospective case-control study. Infect Dis (Lond) 2023; 55:599-606. [PMID: 37353977 DOI: 10.1080/23744235.2023.2226212] [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] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/21/2023] [Revised: 06/10/2023] [Accepted: 06/12/2023] [Indexed: 06/25/2023] Open
Abstract
BACKGROUND Infective endocarditis (IE) caused by non-HACEK gram-negative bacilli (GNB) is poorly characterised and may be emerging as a consequence of medical progress. METHODS We performed an observational retrospective case-control study. Cases were non-HACEK GNB IE, definite or possible (modified Duke criteria), diagnosed in adults between 2007 and 2020 in six French referral hospitals. Two controls were included for each case (IE due to other bacteria, matched by sites and diagnosis date). RESULTS Non-HACEK GNB were identified in 2.4% (77/3230) of all IE during the study period, with a mean age of 69.2 ± 14.6 years, and a large male predominance (53/77, 69%). Primary pathogens were Escherichia coli (n = 33), Klebsiella sp. (n = 12) and Serratia marcescens (n = 9), including eight (10%) multidrug-resistant GNB. Compared to controls (n = 154: 43% Streptococcus sp., 41% Staphylococcus sp. and 12% Enterococcus sp.), non-HACEK GNB IE were independently associated with intravenous drug use (IVDU, 8% vs. 2%, p = .003), active neoplasia (15% vs. 6%, p = .009), haemodialysis (9% vs. 3%, p = .007) and healthcare-associated IE (36% vs. 18%, p = .002). Urinary tract was the main source of infection (n = 25, 33%) and recent invasive procedures were reported in 29% of cases. Non-HACEK GNB IE were at lower risk of embolism (31% vs. 47%, p = .002). One-year mortality was high (n = 28, 36%). Comorbidities, particularly malignant hemopathy and cirrhosis, were associated with increased risk of death. CONCLUSIONS Non-HACEK GNB are rarely responsible for IE, mostly as healthcare-associated IE in patients with complex comorbidities (end-stage renal disease, neoplasia), or in IVDUs.
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Affiliation(s)
- Marine Sebillotte
- Maladies infectieuses et Réanimation médicale, Hôpital Pontchailllou, Centre Hospitalier Universitaire, Rennes, Rennes, France
| | - David Boutoille
- Maladies Infectieuses, CIC 1413 INSERM, Hôtel Dieu, Centre Hospitalier Universitaire, Nantes, Nantes, France
| | - Charles Declerck
- Maladies Infectieuses, Hôpital Larrey, Centre Hospitalier Universitaire, Angers, Angers, France
| | | | - Adrien Lemaignen
- Maladies Infectieuses, EA 7505 Education-Ethics-Health, Hôpital Bretonneau, Centre Hospitalier Universitaire, Tours, Tours, France
| | - Caroline Piau
- Bactériologie, Hôpital Pontchailllou, Centre Hospitalier Universitaire, Rennes, Rennes, France
| | - Matthieu Revest
- Maladies infectieuses et Réanimation médicale, Hôpital Pontchailllou, Centre Hospitalier Universitaire, Rennes, Rennes, France
| | - Pierre Tattevin
- Maladies infectieuses et Réanimation médicale, Hôpital Pontchailllou, Centre Hospitalier Universitaire, Rennes, Rennes, France
| | - Marie Gousseff
- Maladies infectieuses, Centre Hospitalier Bretagne-Atlantique, Vannes, France
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Declerck C, Giltat A, Boutemy R, Brisset-Dheilly M, Pelhatre A, Hunault-Berger M, Kempf M, Kouatchet A, Mahieu R, Tanguy-Schmidt A, Orvain C. Implementation of a new blood cultures sampling strategy in patients receiving intensive chemotherapy for acute leukemia and/or hematopoietic cell transplantation. Leuk Lymphoma 2023:1-4. [PMID: 37052331 DOI: 10.1080/10428194.2023.2196595] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/14/2023]
Affiliation(s)
- Charles Declerck
- Haematology department, CHU Angers, Angers, France
- Infectious diseases department, CHU Angers, Angers, France
| | | | | | | | | | - Mathilde Hunault-Berger
- Haematology department, CHU Angers, Angers, France
- Univ Angers, Nantes Université, CHU Angers, Inserm, CNRS, CRCI2NA, Angers, France
- Fédération Hospitalo-Universitaire 'Grand-Ouest Acute Leukemia' (FHU-GOAL), Angers, France
| | - Marie Kempf
- Microbiology department, CHU Angers, Angers, France
| | | | - Raphael Mahieu
- Infectious diseases department, CHU Angers, Angers, France
| | - Aline Tanguy-Schmidt
- Haematology department, CHU Angers, Angers, France
- Univ Angers, Nantes Université, CHU Angers, Inserm, CNRS, CRCI2NA, Angers, France
- Fédération Hospitalo-Universitaire 'Grand-Ouest Acute Leukemia' (FHU-GOAL), Angers, France
| | - Corentin Orvain
- Haematology department, CHU Angers, Angers, France
- Univ Angers, Nantes Université, CHU Angers, Inserm, CNRS, CRCI2NA, Angers, France
- Fédération Hospitalo-Universitaire 'Grand-Ouest Acute Leukemia' (FHU-GOAL), Angers, France
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Donnars A, Mahieu R, Declerck C, Chenouard R, Lemarié C, Pailhoriès H, Requin J, Kempf M, Eveillard M. BIOFIRE® Blood Culture IDentification 2 (BCID2) panel for early adaptation of antimicrobial therapy in adult patients with bloodstream infections: a real-life experience. Diagn Microbiol Infect Dis 2023; 105:115858. [PMID: 36442386 DOI: 10.1016/j.diagmicrobio.2022.115858] [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: 08/21/2022] [Revised: 10/24/2022] [Accepted: 11/05/2022] [Indexed: 11/13/2022]
Abstract
Our objective was to assess the effectiveness of a multiplex PCR panel for blood culture identification (BCID2) on the implementation of appropriate antimicrobial therapy. We conducted a monocentric pre/post study comparing the time to result from direct microscopic examination (DE) to bacterial identification (BI) in positive blood cultures between 2 different periods: P1 without BCID2 and P2 with BCID2. Appropriate treatments prescribed before DE and after DE / BCID2 and after BI / BCID2 were compared using direct proportion comparison and survival analysis. For mono-microbial bloodstream infections, the proportion of appropriate antimicrobial treatment after DE was 50% in P1 vs. 87.5% after BCID2 in P2 (P < 0.001) for Gram-negative bacteria and 33.0% in P1 vs. 64.4% in P2 (P < 0.01) for Gram-positive bacteria. A significant difference (P = 0.04) was recorded with survival curves for Gram positive bacteria. BCID2 seems effective in reducing the time for prescribing appropriate antimicrobials.
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Affiliation(s)
- Anne Donnars
- Laboratoire de Bactériologie, Département de Biologie des Agents Infectieux, CHU Angers, Angers, France
| | - Rafael Mahieu
- Service des Maladies Infectieuses et Tropicales, CHU Angers, Angers, France; Univ Angers, Nantes Université, CHU Angers, Inserm, CNRS, INCIT, Angers, France
| | - Charles Declerck
- Service des Maladies Infectieuses et Tropicales, CHU Angers, Angers, France
| | - Rachel Chenouard
- Laboratoire de Bactériologie, Département de Biologie des Agents Infectieux, CHU Angers, Angers, France
| | - Carole Lemarié
- Laboratoire de Bactériologie, Département de Biologie des Agents Infectieux, CHU Angers, Angers, France
| | - Hélène Pailhoriès
- Laboratoire de Bactériologie, Département de Biologie des Agents Infectieux, CHU Angers, Angers, France
| | - Jim Requin
- Service des Maladies Infectieuses et Tropicales, CHU Angers, Angers, France
| | - Marie Kempf
- Laboratoire de Bactériologie, Département de Biologie des Agents Infectieux, CHU Angers, Angers, France; Univ Angers, Nantes Université, CHU Angers, Inserm, CNRS, INCIT, Angers, France
| | - Matthieu Eveillard
- Laboratoire de Bactériologie, Département de Biologie des Agents Infectieux, CHU Angers, Angers, France; Univ Angers, Nantes Université, CHU Angers, Inserm, CNRS, INCIT, Angers, France.
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Escolà-Vergé L, Rello P, Declerck C, Dubée V, Rouleau F, Duval X, Habib G, Lavie-Badie Y, Martin-Blondel G, Porte L, Bouiller K, Goehringer F, Selton-Suty C, Lamas CDC, Nacinovich F, Issa N, Richaud C, Hammoudi N, Barranco FJ, Almirante B, Tattevin P, Fernández-Hidalgo N. Infective endocarditis in pregnant women without intravenous drug use: a multicentre retrospective case series. J Antimicrob Chemother 2022; 77:2701-2705. [PMID: 35962570 DOI: 10.1093/jac/dkac258] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2022] [Accepted: 06/29/2022] [Indexed: 11/15/2022] Open
Abstract
OBJECTIVES To describe the clinical features and outcomes of infective endocarditis (IE) in pregnant women who do not inject drugs. METHODS A multinational retrospective study was performed at 14 hospitals. All definite IE episodes between January 2000 and April 2021 were included. The main outcomes were maternal mortality and pregnancy-related complications. RESULTS Twenty-five episodes of IE were included. Median age at IE diagnosis was 33.2 years (IQR 28.3-36.6) and median gestational age was 30 weeks (IQR 16-32). Thirteen (52%) patients had no previously known heart disease. Sixteen (64%) were native IE, 7 (28%) prosthetic and 2 (8%) cardiac implantable electronic device IE. The most common aetiologies were streptococci (n = 10, 40%), staphylococci (n = 5, 20%), HACEK group (n = 3, 12%) and Enterococcus faecalis (n = 3, 12%). Twenty (80%) patients presented at least one IE complication; the most common were heart failure (n = 13, 52%) and symptomatic embolism other than stroke (n = 4, 16%). Twenty-one (84%) patients had surgery indication and surgery was performed when indicated in 19 (90%). There was one maternal death and 16 (64%) patients presented pregnancy-related complications (11 patients ≥1 complication): 3 pregnancy losses, 9 urgent Caesarean sections, 2 emergency Caesarean sections, 1 fetal death, and 11 preterm births. Two patients presented a relapse during a median follow-up of 3.1 years (IQR 0.6-7.4). CONCLUSIONS Strict medical surveillance of pregnant women with IE is required and must involve a multidisciplinary team including obstetricians and neonatologists. Furthermore, the potential risk of IE during pregnancy should never be underestimated in women with previously known underlying heart disease.
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Affiliation(s)
- Laura Escolà-Vergé
- Servei de Malalties Infeccioses, Hospital Universitari Vall d'Hebron, Universitat Autònoma de Barcelona, Barcelona, Spain.,CIBERINFEC, ISCIII-CIBER de Enfermedades Infecciosas, Instituto de Salud Carlos III, Madrid, Spain
| | - Pau Rello
- Department of Cardiology, Hospital Universitari Vall d'Hebron, Barcelona, Spain
| | - Charles Declerck
- Infectious Diseases Department, Angers University Hospital, Angers, France
| | - Vincent Dubée
- Infectious Diseases Department, Angers University Hospital, Angers, France
| | - Fréderic Rouleau
- Department of Cardiology, Angers University Hospital, Angers, France
| | - Xavier Duval
- Infectious Diseases, CIC Inserm 1425, IAME, Bichat Hospital, APHP, Paris Cité University, Paris, France
| | - Gilbert Habib
- Cardiology Department, La Timone Hospital, Aix Marseille University, IRD, APHM, Marseille, France
| | - Yoan Lavie-Badie
- Heart Valve Center, Toulouse University Hospital, Toulouse, France
| | | | - Lydie Porte
- Department of Infectious and Tropical Diseases, Toulouse University Hospital, Toulouse, France
| | | | | | | | - Cristiane da Cruz Lamas
- Infectious Diseases, Instituto Nacional de Cardiologia. Unigranrio. Instituto Nacional de Infectologia Evandro Chagas, Fiocruz, Rio de Janeiro, Brazil
| | - Francisco Nacinovich
- Infectious Diseases, Instituto Cardiovascular Buenos Aires, Buenos Aires, Argentina
| | - Nahema Issa
- Infectious Diseases and ICU, Groupe Saint-André Hospital, University Hospital, Bordeaux, France
| | - Clémence Richaud
- Internal Medecine, Institut Mutualiste Montsouris, Paris, France
| | - Nadjib Hammoudi
- Sorbonne Université, ACTION Study Group, INSERM UMR_S 1166, and Hôpital Pitié-Salpêtrière (AP-HP), Paris, France
| | - Francisco José Barranco
- Maternal Fetal Medicine Unit, Department of Obstetrics, Vall d'Hebron Barcelona Hospital Campus, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Benito Almirante
- Servei de Malalties Infeccioses, Hospital Universitari Vall d'Hebron, Universitat Autònoma de Barcelona, Barcelona, Spain.,CIBERINFEC, ISCIII-CIBER de Enfermedades Infecciosas, Instituto de Salud Carlos III, Madrid, Spain
| | - Pierre Tattevin
- Infectious Diseases and ICU, Pontchaillou University Hospital, Rennes, France
| | - Nuria Fernández-Hidalgo
- Servei de Malalties Infeccioses, Hospital Universitari Vall d'Hebron, Universitat Autònoma de Barcelona, Barcelona, Spain.,CIBERINFEC, ISCIII-CIBER de Enfermedades Infecciosas, Instituto de Salud Carlos III, Madrid, Spain
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5
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Declerck C, Mahieu R, Sanderink D, de la Chapelle M, Abgueguen P, Vandamme YM, Dubée V. Implementation of point-of-care ultrasonography in an infectious disease ward. Infect Dis Now 2021; 52:87-92. [PMID: 34896661 DOI: 10.1016/j.idnow.2021.11.008] [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: 07/28/2021] [Revised: 11/15/2021] [Accepted: 11/29/2021] [Indexed: 10/19/2022]
Abstract
INTRODUCTION Point-of-care ultrasonography (POCUS) has emerged as an essential supplement to physical examination in many specialties. In contrast, its use by infectious diseases (ID) specialists remains anecdotal. Here, we report on the acquisition of an ultrasonography device in a French ID ward, and we describe its everyday use. METHODS A preliminary audit was conducted to evaluate the potential impact of the acquisition of an ultrasonography device. A second audit was performed during the first year following the acquisition of the device to quantify its everyday use. We also evaluated the impact of POCUS implementation on medical imaging requests by comparing the number of intra-hospital transports before and after the acquisition. RESULTS According to the first audit, 81 of the 199 (41%) imaging examinations that were prescribed during a two-month period could have been replaced by POCUS. During the first year following the acquisition of the ultrasonography device, POCUS was performed 240 times by 31 different operators. The operators were a senior physician, an intern, and a medical student in 94 (39%), 135 (57%), and 11 (5%) cases, respectively. The organs most frequently explored were the genito-urinary tract (n=74), the joints (n=35), and the lungs/pleura (n=35). Acquisition of the device was followed by a significant decrease in the number of transports to the ultrasonography room, whereas the total number of transports to the medical imaging ward did not change. CONCLUSION Opportunities to use POCUS in the ID ward are numerous. POCUS training should be part of the ID specialist's curriculum.
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Affiliation(s)
- C Declerck
- Infectious Disease and Tropical Medicine Ward, Angers University Hospital, Angers, France.
| | - R Mahieu
- Infectious Disease and Tropical Medicine Ward, Angers University Hospital, Angers, France
| | - D Sanderink
- Infectious Disease and Tropical Medicine Ward, Angers University Hospital, Angers, France
| | - M de la Chapelle
- Infectious Disease and Tropical Medicine Ward, Angers University Hospital, Angers, France
| | - P Abgueguen
- Infectious Disease and Tropical Medicine Ward, Angers University Hospital, Angers, France
| | - Y M Vandamme
- Infectious Disease and Tropical Medicine Ward, Angers University Hospital, Angers, France
| | - V Dubée
- Infectious Disease and Tropical Medicine Ward, Angers University Hospital, Angers, France
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6
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Sebillotte M, Boutoille D, Declerck C, Talarmin J, Lemaignen A, Piau C, Tattevin P, Gousseff M. Endocardites à bacilles Gram négatif non HACEK : étude rétrospective multicentrique cas-témoins. Infect Dis Now 2021. [DOI: 10.1016/j.idnow.2021.06.015] [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: 10/20/2022]
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7
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Danneels P, Descolas A, Touré A, Chabrun F, Declerck C, Ravaïau C, Despre M, Crochette N, Mahieu R, Dubée V. Faisabilité et reproductibilité de deux scores cliniques prédictifs d’endocardite à Enterococcus faecalis. Infect Dis Now 2021. [DOI: 10.1016/j.idnow.2021.06.080] [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: 11/16/2022]
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Yildizhan Y, Vajrala VS, Geeurickx E, Declerck C, Duskunovic N, De Sutter D, Noppen S, Delport F, Schols D, Swinnen JV, Eyckerman S, Hendrix A, Lammertyn J, Spasic D. FO-SPR biosensor calibrated with recombinant extracellular vesicles enables specific and sensitive detection directly in complex matrices. J Extracell Vesicles 2021; 10:e12059. [PMID: 33664936 PMCID: PMC7902528 DOI: 10.1002/jev2.12059] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [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: 10/22/2020] [Revised: 12/11/2020] [Accepted: 01/06/2021] [Indexed: 12/13/2022] Open
Abstract
Extracellular vesicles (EVs) have drawn huge attention for diagnosing myriad of diseases, including cancer. However, the EV detection and analyses procedures often lack much desired sample standardization. To address this, we used well-characterized recombinant EVs (rEVs) for the first time as a biological reference material in developing a fiber optic surface plasmon resonance (FO-SPR) bioassay. In this context, EV binding on the FO-SPR probes was achieved only with EV-specific antibodies (e.g. anti-CD9 and anti-CD63) but not with non-specific anti-IgG. To increase detection sensitivity, we tested six different combinations of EV-specific antibodies in a sandwich bioassay. Calibration curves were generated with two most effective combinations (anti-CD9/Banti-CD81 and anti-CD63/Banti-CD9), resulting in 103 and 104 times higher sensitivity than the EV concentration in human blood plasma from healthy or cancer patients, respectively. Additionally, by using anti-CD63/Banti-CD9, we detected rEVs spiked in cell culture medium and HEK293 endogenous EVs in the same matrix without any prior EV purification or enrichment. Lastly, we selectively captured breast cancer cell EVs spiked in blood plasma using anti-EpCAM antibody on the FO-SPR surface. The obtained results combined with FO-SPR real-time monitoring, fast response time and ease of operation, demonstrate its outstanding potential for EV quantification and analysis.
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Affiliation(s)
- Yagmur Yildizhan
- Department of Biosystems Biosensors group, KU Leuven Leuven Belgium
| | | | - Edward Geeurickx
- Department of Human Structure and Repair Laboratory of Experimental Cancer Research Ghent University Ghent Belgium
| | - Charles Declerck
- Department of Biosystems Biosensors group, KU Leuven Leuven Belgium
| | | | - Delphine De Sutter
- VIB Center for Medical Biotechnology & Department of Biomolecular Medicine Ghent University Ghent
| | - Sam Noppen
- Department of Microbiology Immunology and Transplantation, Laboratory of Virology and Chemotherapy, Rega Institute KU Leuven Leuven Belgium
| | | | - Dominique Schols
- Department of Microbiology Immunology and Transplantation, Laboratory of Virology and Chemotherapy, Rega Institute KU Leuven Leuven Belgium
| | - Johannes V Swinnen
- Department of Oncology Laboratory of Lipid Metabolism and Cancer KU Leuven Leuven Belgium
| | - Sven Eyckerman
- VIB Center for Medical Biotechnology & Department of Biomolecular Medicine Ghent University Ghent
| | - An Hendrix
- Department of Human Structure and Repair Laboratory of Experimental Cancer Research Ghent University Ghent Belgium
| | - Jeroen Lammertyn
- Department of Biosystems Biosensors group, KU Leuven Leuven Belgium
| | - Dragana Spasic
- Department of Biosystems Biosensors group, KU Leuven Leuven Belgium
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Bénézit F, Le Turnier P, Declerck C, Paillé C, Revest M, Dubée V, Tattevin P. Utility of hyposmia and hypogeusia for the diagnosis of COVID-19. Lancet Infect Dis 2020; 20:1014-1015. [PMID: 32304632 PMCID: PMC7159866 DOI: 10.1016/s1473-3099(20)30297-8] [Citation(s) in RCA: 143] [Impact Index Per Article: 35.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 03/26/2020] [Revised: 04/04/2020] [Accepted: 04/06/2020] [Indexed: 01/08/2023]
Affiliation(s)
- François Bénézit
- Infectious Diseases and Intensive Care Unit, Pontchaillou University Hospital, Rennes, France
| | - Paul Le Turnier
- Infectious Diseases and Tropical Medicine, Hotel Dieu, University Hospital of Nantes, France
| | - Charles Declerck
- Infectious Diseases and Tropical Medicine, University Hospital of Angers, France
| | - Cécile Paillé
- Infectious Diseases and Tropical Medicine, Hotel Dieu, University Hospital of Nantes, France
| | - Matthieu Revest
- Infectious Diseases and Intensive Care Unit, Pontchaillou University Hospital, Rennes, France
| | - Vincent Dubée
- Infectious Diseases and Tropical Medicine, University Hospital of Angers, France
| | - Pierre Tattevin
- Infectious Diseases and Intensive Care Unit, Pontchaillou University Hospital, Rennes, France.
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Carvalho J, Declerck D, De Vos E, Kellen J, Van Nieuwenhuysen J, Vanobbergen J, Bottenberg P, Declerck C. Validation of the Oral Survey-B System for Electronic Data Capture in National Oral Health Surveys. Caries Res 2016; 50:288-94. [DOI: 10.1159/000445446] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2015] [Accepted: 03/11/2016] [Indexed: 11/19/2022] Open
Abstract
The aims of the present study were to incorporate and to validate the electronic capture of participant-related outcomes into the Oral Survey-B System, which was originally developed for the electronic capture of clinical data. The validation process compared the performances of electronic and handwritten data captures. The hypothesis of noninferiority would be established if participants performed electronic data capture of the questionnaire survey with an effectiveness of at least 95% of that of handwritten data capture. In this multicenter, randomized, one-period crossover study design, participants (n = 261) were allocated to start with either electronic or handwritten data capture. The incorporation of the electronic self-completed questionnaire into the Oral Survey-B System was successful. The validation of the electronic questionnaire was performed by participants aged from 18 to 75 years. The interrater reliability of participants performing electronic and handwritten data capture of nonclinical assessments per questionnaire and per entry showed a kappa value of 0.72 (95% CI: 0.53-0.94). The noninferiority of electronic data capture in relation to that of the handwritten data capture and transfer was shown (p < 0.0001; 95% CI: 1.47-2.99). In conclusion, the electronic capture of participant-related outcomes with the Oral Survey-B System, originally designed for capture of clinical data, was validated. The electronic data capture was accurate and limited the number of errors. The participants were able to perform electronic data capture effectively, supporting its implementation in further National Oral Health Surveys. With the consideration of participant preference and time savings, this could lead to the implementation of electronic data capture worldwide in National Oral Health Surveys.
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Declerck C, De Brabander B. Lateral asymmetries in attentional priming during a semantic and a visuospatial task. Percept Mot Skills 2001; 92:623-32. [PMID: 11453184 DOI: 10.2466/pms.2001.92.3.623] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
This study tests the hypothesis that lateral cueing of attention activates the contralateral hemisphere and also that performance on a semantic and a visuospatial task will differentially be affected depending on the visual field (right or left) to which attention was drawn. In an experimental setting, 68 subjects performed both a semantic and a visuospatial discriminating task, whereby visual priming signals unbeknownst were presented to either the left or the right visual field. For the semantic task (which is believed to engage primarily the left hemisphere) priming signals enhanced performance more when they were presented to the right visual field. For the visuospatial task, no difference was found between priming signals presented in either visual field. While there may be several alternative explanations for the observed difference in the effects of the priming signals presented to different visual fields, the importance of separating the components inherent in the tasks is stressed. While the process of decision-making may involve different relative activation of the two hemispheres, depending on whether the stimuli are semantic or visuospatial in nature, performance on the task also involves manual coordination which will depend especially on motor activation in the left hemisphere.
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Abstract
This study presents experimental evidence for a relationship between attentional orientation and associative learning. Learning to establish contingencies between warning signals and subsequent task stimuli is a phenomenon which we know from previous studies to be more associated with the left hemisphere. We investigated how hemispheric priming, i.e., activating one hemisphere by directing attention towards the contralateral hemispace, affected both the rate and the extent of associative and nonassociative learning. When attention was directed towards the right while perceiving a discrimination task stimulus, the rate of learning through contingency formation was increased since the relative activation of the left hemisphere was increased. Such a relationship was not found for relative activation of the right hemisphere following leftward orientation of attention.
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13
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Declerck C, Hillel Z, Shih H, Kuroda M, Connery CP, Thys DM. A comparison of left ventricular performance indices measured by transesophageal echocardiography with automated border detection. Anesthesiology 1998; 89:341-9. [PMID: 9710391 DOI: 10.1097/00000542-199808000-00009] [Citation(s) in RCA: 21] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
BACKGROUND Automated border detection (ABD) allows semiautomated measurement of left ventricular (LV) areas. They can be combined with left ventricular pressure signals to generate pressure-area loops and pressure-dimension indices of contractility. This study compared conventional indices of ventricular performance (fractional area change [FAC] and circumferential fiber shortening [Vcfc]) with pressure-dimension indices of contractility. A secondary aim was to compare the effects of volatile anesthetics on the indices. METHODS Using transesophageal echocardiography with automated border detection, FAC and Vcfc were obtained in 23 patients after cardiopulmonary bypass. Left ventricular pressures were obtained with a left ventricular catheter. Preload reduction by inferior vena caval occlusion was used to obtain end-systolic elastance (Ees), preload recruitable stroke force (PRSF), and dP/dtmax x EDA(-1) (EDA = end-diastolic area). In 11 patients, the measurements were repeated at 1 end-tidal minimum alveolar concentration of halothane or isoflurane. The results are expressed as mean +/- SD. RESULTS After cardiopulmonary bypass, FAC was 31.1+/-7.9%, Vcfc was 0.6+/-0.2 circ x s(-1), Ees was 25.8+/-11.6 mmHg x cm(-2), PRSF was 60.8+/-26.6 mmHg, and dP/dtmax x EDA(-1) was 245+/-123.4 mmHg x s(-1) x cm(-2). At 1 minimum alveolar concentration of a volatile anesthetic agent, FAC, Vcfc, and dP/dtmax x EDA(-1) remained unchanged. Significant decreases in Ees (19%) and PRSF (28%) were observed. CONCLUSIONS The association between pressure-dimension indices and Vcfc or FAC was weak or nonexistent. A reduction in myocardial contractility induced by the administration of volatile anesthetic agents was detected by Ees and PRSF, but not by FAC, Vcfc, or dP/dtmax x EDA(-1). After myocardial revascularization, Ees and PRSF appear more sensitive than FAC or Vcfc for measuring changes in contractility.
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Affiliation(s)
- C Declerck
- Department of Anesthesiology, St. Luke's-Roosevelt Hospital Center, College of Physicians and Surgeons, Columbia University, New York, New York 10025, USA
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Shih H, Hillel Z, Declerck C, Anagnostopoulos C, Kuroda M, Thys D. An algorithm for real-time, continuous evaluation of left ventricular mechanics by single-beat estimation of arterial and ventricular elastance. J Clin Monit Comput 1997; 13:157-70. [PMID: 9234085 DOI: 10.1023/a:1007387315948] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
We describe a computer algorithm that allows continuous, real-time evaluation of ventricular elastance (Ees), arterial elastance (Ea), and their coupling ratio in a clinical setting. In the conventional pressure-volume analysis of left ventricular (LV) contractility, invasive methods of volume determination and a significant, rapid preload reduction are required to generate Ees. With the help of automated border detection by transesophageal echocardiography, and a technique of estimating peak LV isovolumic pressure, Ea and Ees were determined from a single cardiac beat without the need for preload reduction. A comparison of results obtained by a conventional approach and the new algorithm technique, showed good correlation for Ea (r = 0.86, p < 0.001) and Ees (r = 0.74, p = 0.001). Bias analysis showed a bias (d) of 1.47 mmHg/cm2 for Ea with a standard deviation (SD) of 7.03 mmHg/cm2, and upper (d+2SD) and lower(d-2SD) limits of agreement of 15.24 mmHg/cm2 and -12.31 mmHg/cm2, respectively. Bias analysis showed a bias of -1.42 mmHg/cm2 for Ees with a SD of 4.88 mmHg/cm2, and limits of agreement of 8.15 mmHg/cm2 and -10.98 mmHg/cm2. The algorithm's stability to artifacts was also analyzed by comparing magnitudes of residuals of Ea and Ees from source signals with and without noise. With Ea differing by an average of 1.036 mmHg/cm2 and Ees differing by an average of 0.836 mmHg/cm2, the algorithm was found to be stable to artifacts in the source signals.
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Affiliation(s)
- H Shih
- St. Luke's-Roosevelt Hospital Center, Columbia University College of Physicians and Surgeons, New York, NY 10025, USA
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Abstract
OBJECTIVE The identification of myocardial dysfunction in septic shock has not yet been fully elucidated. We therefore studied patients with persistently vasopressor-dependent septic shock, both with invasive haemodynamic monitoring and transoesophageal two-dimensional and Doppler echocardiography (TEE). DESIGN Prospective study. SETTING General ICU in University Hospital. PATIENTS AND METHODS All patients were monitored with arterial and pulmonary artery catheters. Haemodynamics were obtained concomitantly with TEE measurements. TEE was performed at three levels: a) a midpapillary short axis view of the left ventricle (LV) in order to measure end-systolic and end-diastolic areas; b) at the level of both the mitral valve for early (E) and late (A) filling parameters and c) the level of the right upper pulmonary vein for systolic (S) and diastolic (D) filling characteristics. Each parameter was characterised by maximal flow velocity and time velocity integral. RESULTS Although the measurements of cardiac index demonstrated a wide range, three subsets of patients were identified post hoc after analysis on the basis of different Doppler patterns: first, patients with a LV without regional wall motion abnormalities and both E/A and S/D greater than 1 (group 1); second, patients with a comparable haemodynamic condition, apparently normal LV systolic function but with altered Doppler patterns: S/D less than 1 in conjunction with E/A more than 1 (group 2); finally, patients with compromised global LV systolic function, E/A less than 1 and S/D less than (group 3). CONCLUSIONS Notwithstanding the known various interfering factors which limit the broad applicability of TEE to determine LV function in septic shock, our data suggest that cardiac dysfunction in septic shock shows a continuum from isolated diastolic dysfunction to both diastolic and systolic ventricular failure. These data strengthen the need of including the evaluation of pulmonary venous Doppler parameters in each investigation in order to obtain supplementary information to interpret diastolic function of the LV in septic shock patients.
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Affiliation(s)
- J Poelaert
- Department of Intensive Care Unit, University Hospital, Gent, Belgium
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Willems JL, De Bisschop HC, Verstraete AG, Declerck C, Christiaens Y, Vanscheeuwyck P, Buylaert WA, Vogelaers D, Colardyn F. Cholinesterase reactivation in organophosphorus poisoned patients depends on the plasma concentrations of the oxime pralidoxime methylsulphate and of the organophosphate. Arch Toxicol 1993; 67:79-84. [PMID: 8481105 DOI: 10.1007/bf01973675] [Citation(s) in RCA: 75] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
We measured in nine patients, poisoned by organophosphorus agents (ethyl parathion, ethyl and methyl parathion, dimethoate, or bromophos), erythrocyte and serum cholinesterase activities, and plasma concentrations of the organophosphorus agent. These patients were treated with pralidoxime methylsulphate (Contrathion), administered as a bolus injection of 4.42 mg.kg-1 followed by a continuous infusion of 2.14 mg.kg-1/h, a dose regimen calculated to obtain the presumed "therapeutic" plasma level of 4 mg.l-1, or by a multiple of this infusion rate. Oxime plasma concentrations were also measured. The organophosphorus agent was still detectable in some patients after several days or weeks. In the patients with ethyl and methyl several days or weeks. In the patients with ethyl and methyl parathion poisoning, enzyme reactivation could be obtained in some at oxime concentrations as low as 2.88 mg.l-1; in others, however, oxime concentrations as high as 14.6 mg.l-1 remained without effect. The therapeutic effect of the oxime seemed to depend on the plasma concentrations of ethyl and methyl parathion, enzyme reactivation being absent as long as these concentrations remained above 30 micrograms.l-1. The bromophos poisoning was rather mild, cholinesterases were moderately inhibited and increased under oxime therapy. The omethoate inhibited enzyme could not be reactivated.
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Affiliation(s)
- J L Willems
- Heymans Institute of Pharmacology, University of Ghent, Medical School, Belgium
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