Abstract
Purpose
Risk factors for β-lactam antibiotic underdosing in critically ill patients have not been described in large-scale studies. The objective of this study was to describe pharmacokinetic/pharmacodynamic (PK/PD) target non-attainment envisioning empirical dosing in critically ill patients and considering a worst-case scenario as well as to identify patient characteristics that are associated with target non-attainment.
Methods
This analysis uses data from the DALI study, a prospective, multi-centre pharmacokinetic point-prevalence study. For this analysis, we assumed that these were the concentrations that would be reached during empirical dosing, and calculated target attainment using a hypothetical target minimum inhibitory concentration (MIC), namely the susceptibility breakpoint of the least susceptible organism for which that antibiotic is commonly used. PK/PD targets were free drug concentration maintained above the MIC of the suspected pathogen for at least 50 % and 100 % of the dosing interval respectively (50 % and 100 % f T >MIC). Multivariable analysis was performed to identify factors associated with inadequate antibiotic exposure.
Results
A total of 343 critically ill patients receiving eight different β-lactam antibiotics were included. The median (interquartile range) age was 60 (47–73) years, APACHE II score was 18 (13–24). In the hypothetical situation of empirical dosing, antibiotic concentrations remained below the MIC during 50 % and 100 % of the dosing interval in 66 (19.2 %) and 142 (41.4 %) patients respectively. The use of intermittent infusion was significantly associated with increased risk of non-attainment for both targets; creatinine clearance was independently associated with not reaching the 100 % f T >MIC target.
Conclusions
This study found that—in empirical dosing and considering a worst-case scenario—19 % and 41 % of the patients would not achieve antibiotic concentrations above the MIC during 50 % and 100 % of the dosing interval. The use of intermittent infusion (compared to extended and continuous infusion) was the main determinant of non-attainment for both targets; increasing creatinine clearance was also associated with not attaining concentrations above the MIC for the whole dosing interval. In the light of this study from 68 ICUs across ten countries, we believe current empiric dosing recommendations for ICU patients are inadequate to effectively cover a broad range of susceptible organisms and need to be reconsidered.
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Acknowledgments
This project has received funding from the European Society of Intensive Care Medicine’s European Critical Care Research Network (ESICM ECCRN), and the Royal Brisbane and Women’s Hospital Foundation. Jason Roberts is funded in part by a National Health and Medical Research Council of Australia Research Fellowship (NHMRC APP1048652).
Conflicts of interest
The authors declare that they have no conflict of interest.
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Additional information
On behalf of the DALI study authors (Appendix).
Appendix: Participating investigators
Appendix: Participating investigators
Author name | Affiliation |
---|---|
Jason A. Roberts | Burns Trauma and Critical Care Research Centre, The University of Queensland, Brisbane, Australia |
Royal Brisbane and Women’s Hospital, Brisbane, Australia | |
Jeffrey Lipman | Burns Trauma and Critical Care Research Centre, The University of Queensland, Brisbane, Australia |
Royal Brisbane and Women’s Hospital, Brisbane, Australia | |
Therese Starr | Royal Brisbane and Women’s Hospital, Brisbane, Australia |
Steven C. Wallis | Burns Trauma and Critical Care Research Centre, The University of Queensland, Brisbane, Australia |
Sanjoy Paul | Queensland Clinical Trials & Biostatistics Centre, School of Population Health, The University of Queensland, Brisbane, Australia |
Antonio Margarit Ribas | Hospital Nostra Senyora de Meritxell, Escaldes-Engordany, Andorra |
Jan J. De Waele | Ghent University Hospital, Ghent, Belgium |
Luc De Crop | Ghent University Hospital, Ghent, Belgium |
Herbert Spapen | Universitair Ziekenhuis Brussels, Brussels, Belgium |
Joost Wauters | Universitair Ziekenhuis Gasthuisberg, Leuven, Brussels |
Thierry Dugernier | Clinique Saint Pierre, Ottignies, Belgium |
Philippe Jorens | Universitair Ziekenhuis Antwerpen, Edegem, Belgium |
Ilse Dapper | Algemeen Ziekenhuis Monica, Deurne, Belgium |
Daniel De Backer | Erasme University Hospital, Brussels, Belgium |
Fabio S. Taccone | Erasme University Hospital, Brussels, Belgium |
Jordi Rello | Vall d’Hebron Institut of Research, Universitat Autonoma de Barcelona, Spain |
Centro de Investigación Biomedica En Red- Enfermedades Respiratorias (CibeRes) | |
Laura Ruano | Vall d’Hebron Institut of Research, Universitat Autonoma de Barcelona, Spain |
Centro de Investigación Biomedica En Red- Enfermedades Respiratorias (CibeRes) | |
Elsa Afonso | Hospital Universitari Vall d’Hebron, Vall d’Hebron Institut of Research, Universitat Autonoma de Barcelona, Spain |
Centro de Investigación Biomedica En Red- Enfermedades Respiratorias (CibeRes) | |
Francisco Alvarez-Lerma | Hospital Del Mar, Parc Salut Mar, Barcelona, Spain |
Maria Pilar Gracia-Arnillas | Hospital Del Mar, Parc Salut Mar, Barcelona, Spain |
Francisco Fernández | Centro Médico Delfos, Barcelona |
Neus Feijoo | Hospital General de L’Hospitalet, Barcelona, Spain |
Neus Bardolet | Hospital General de L’Hospitalet, Barcelona, Spain |
Assumpta Rovira | Hospital General de L’Hospitalet, Barcelona, Spain |
Pau Garro | Hospital General de Granollers, Barcelona, Spain |
Diana Colon | Hospital General de Granollers, Barcelona, Spain |
Carlos Castillo | Hospital Txagorritxu, Vitoria, Spain |
Juan Fernado | Hospital Txagorritxu, Vitoria, Spain |
Maria Jesus Lopez | Hospital Universitario de Burgos, Burgos, Spain |
Jose Luis Fernandez | Hospital Universitario de Burgos, Burgos, Spain |
Ana Maria Arribas | Hospital Universitario de Burgos, Burgos, Spain |
Jose Luis Teja | Hospital Universitario Marques de Valdecilla, Santander, Spain |
Elsa Ots | Hospital Universitario Marques de Valdecilla, Santander, Spain |
Juan Carlos Montejo | Hospital Universitario 12 de Octubre, Madrid, Spain |
Mercedes Catalan | Hospital Universitario 12 de Octubre, Madrid, Spain |
Isidro Prieto | Hospital Ramon y Cajal, Madrid, Spain |
Gloria Gonzalo | Hospital Ramon y Cajal, Madrid, Spain |
Beatriz Galvan | Hospital Universitario La Paz, Madrid, Spain |
Miguel Angel Blasco | Hospital Universitario Severo Ochoa, Madrid, Spain |
Estibaliz Meyer | Hospital Universitario Severo Ochoa, Madrid, Spain |
Frutos Del Nogal | Hospital Universitario Severo Ochoa, Madrid, Spain |
Loreto Vidaur | Hospital Universitario de Donostia, Donostia, Spain |
Rosa Sebastian | Hospital Universitario de Donostia, Donostia, Spain |
Pila Marco Garde | Hospital Universitario de Donostia, Donostia, Spain |
Maria del Mar Martin Velasco | Hospital Universitario Nuestra Señora de Candelaria, Spain |
Rafael Zaragoza Crespo | Hospital Universitario Dr. Peset, Spain |
Mariano Esperatti | Institut Clínic del Tòrax, Hospital Clinic, IDIBAPS, Barcelona, Spain |
Centro de Investigación Biomedica En; Red- Enfermedades Respiratorias (CibeRes) | |
Antoni Torres | Institut Clínic del Tòrax, Hospital Clinic, IDIBAPS, Barcelona, Spain |
Centro de Investigación Biomedica En Red- Enfermedades Respiratorias (CibeRes) | |
Philippe Montravers | Centre Hospitalier Universitaire Bichat-Claude Bernard, AP-HP, Université Paris VII, Paris, France |
Olivier Baldesi | Centre Hospitalier Pays D Aix, Aix en Provence, France and AzuRea Group |
Herve Dupont | Centre Hospitalier Universitaire d’Amiens, Amiens, France |
Yazine Mahjoub | Centre Hospitalier-Universitaire d’Amiens, Amiens, France and AzuRea Group |
Sigismond Lasocki | Centre Hospitalier-Universitaire d’Angers, Angers, France |
Jean Michel Constantin | Centre Hospitalier Universitaire de Clermont-Ferrand, Clermont-Ferrand, France and AzuRea Group |
Jean François Payen | Centre Hospitalier-Universitaire Grenoble, Grenoble France and AzuRea Group |
Claude Martin | Hopital Nord, Marseille, France; AzuRea Group, France |
Jacques Albanese | Hopital Nord, Marseille, France and AzuRea Group |
Yannick Malledant | Hôpital Pontchaillou, Rennes, France |
Julien Pottecher | University Hospital, Strasbourg, France and AzuRea Group |
Jean-Yves Lefrant | Centre Hospitalier-Universitaire Nimes, Nimes France and AzuRea Group |
Samir Jaber | Hospitalier-Universitaire Montpellier, Montpellier, France and AzuRea Group |
Olivier Joannes-Boyau | Centre Hospitalier-Universitaire Bordeaux, Bordeaux, France and AzuRea Group |
Christophe Orban | Centre Hospitalier-Universitaire Nice, Nice, France and AzuRea Group |
Marlies Ostermann | St Thomas’ Hospital, London, UK |
Catherine McKenzie | St Thomas’ Hospital, London, UK |
Willaim Berry | St Thomas’ Hospital, London, UK |
John Smith | St Thomas’ Hospital, London, UK |
Katie Lei | St Thomas’ Hospital, London, UK |
Francesca Rubulotta | Charing Cross Hospital, Imperial Healthcare NHS Trust, London, UK |
Anthony Gordon | Charing Cross Hospital, Imperial Healthcare NHS Trust, London, UK |
Stephen Brett | Hammersmith Hospital, Imperial Healthcare NHS Trust, London, UK |
Martin Stotz | St Mary’s Hospital, Imperial Healthcare NHS Trust, London, UK |
Maie Templeton | St Mary’s Hospital, Imperial Healthcare NHS Trust, London, UK |
Andrew Rhodes | St George’s Hospital, St George’s Healthcare NHS Trust, London, UK |
Claudia Ebm | St George’s Hospital, St George’s Healthcare NHS Trust, London, UK |
Carl Moran | St George’s Hospital, St George’s Healthcare NHS Trust, London, UK |
Kirsi-Maija Kaukonen | Helsinki University Central Hospital, Helsinki, Finland |
Ville Pettilä | Helsinki University Central Hospital, Helsinki, Finland |
George Dimopoulos | Attikon University Hospital, Athens, Greece |
Despoina Koulenti | Attikon University Hospital, Athens, Greece |
Aglaia Xristodoulou | Attikon University Hospital, Athens, Greece |
Vassiliki Theodorou | University Hospital of Alexandroupolis, Alexandroupolis, Greece |
Georgios Kouliatsis | University Hospital of Alexandroupolis, Alexandroupolis, Greece |
Stylianos Fotakis | University Hospital of Alexandroupolis, Alexandroupolis, Greece |
Georgios Anthopoulos | 251 Air Force General Hospital of Athens, Athens, Greece |
George Choutas | 251 Air Force General Hospital of Athens, Athens, Greece |
Thanos Rantis | 251 Air Force General Hospital of Athens, Athens, Greece |
Stylianos Karatzas | General Hospital of Athens ‘Hippokrateion’, Athens, Greece |
Margarita Balla | General Hospital of Athens ‘Hippokrateion’, Athens, Greece |
Metaxia Papanikolaou | General Hospital of Athens ‘Hippokrateion’, Athens, Greece |
Pavlos Myrianthefs | ‘Aghioi Anargyroi’ Hospita, Athens, Greece |
Alexandra Gavala | ‘Aghioi Anargyroi’ Hospita, Athens, Greece |
Georgios Fildisis | ‘Aghioi Anargyroi’ Hospita, Athens, Greece |
Antonia Koutsoukou | Sotiria General Hospital, Athens, Greece |
Magdalini Kyriakopoulou | Sotiria General Hospital, Athens, Greece |
Kalomoira Petrochilou | Sotiria General Hospital, Athens, Greece |
Maria Kompoti | ‘Thriassio’ General Hospital of Eleusi, Athen, Greece |
Martha Michalia | ‘Thriassio’ General Hospital of Eleusi, Athen, Greece |
Fillis-Maria Clouva-Molyvdas | ‘Thriassio’ General Hospital of Eleusi, Athen, Greece |
Georgios Gkiokas | Aretaieion University Hospital, Athens, Greece |
Fotios Nikolakopoulos | Aretaieion University Hospital, Athens, Greece |
Vasiliki Psychogiou | Aretaieion University Hospital, Athens, Greece |
Polychronis Malliotakis | University Hospital Herakleion, Crete, Greece |
Evangelia Akoumianaki | University Hospital Herakleion, Crete, Greece |
Emmanouil Lilitsis | University Hospital Herakleion, Crete, Greece |
Vassilios Koulouras | University Hospital of Ioannina, Ioannina, Greece |
George Nakos | University Hospital of Ioannina, Ioannina, Greece |
Mihalis Kalogirou | University Hospital of Ioannina, Ioannina, Greece |
Apostolos Komnos | General Hospital of Larisa, Larisa, Greece |
Tilemachos Zafeiridis | General Hospital of Larisa, Larisa, Greece |
Achilleas Chovas | General Hospital of Larisa, Larisa, Greece |
Kostoula Arvaniti | General Hospital of Thessaloniki ‘G. Papageorgiou’, Thessaloniki, Greece |
Dimitrios Matamis | General Hospital of Thessaloniki ‘G. Papageorgiou’, Thessaloniki, Greece |
Christos Chaintoutis | General Hospital of Thessaloniki ‘G. Papageorgiou’, Thessaloniki, Greece |
Christina Kydona | General Hospital of Thessaloniki ‘Hippokrateion’, Thessaloniki, Greece |
Nikoleta Gritsi-Gerogianni | General Hospital of Thessaloniki ‘Hippokrateion’, Thessaloniki, Greece |
Tatiana Giasnetsova | General Hospital of Thessaloniki ‘Hippokrateion’, Thessaloniki, Greece |
Maria Giannakou | Ahepa University Hospital, Thessaloniki, Greece |
Ioanna Soultati | Ahepa University Hospital, Thessaloniki, Greece |
Ilias Chytas | Ahepa University Hospital, Thessaloniki, Greece |
Eleni Antoniadou | General Hospital ‘G. Gennimatas’, Thessaloniki, Greece |
Elli Antipa | General Hospital ‘G. Gennimatas’, Thessaloniki, Greece |
Dimitrios Lathyris | General Hospital ‘G. Gennimatas’, Thessaloniki, Greece |
Triantafyllia Koukoubani | General Hospital of Trikala, Trikala, Greece |
Theoniki Paraforou | General Hospital of Trikala, Trikala, Greece |
Kyriaki Spiropoulou | General Hospital of Trikala, Trikala, Greece |
Vasileios Bekos | Naval Hospital of Athens, Athens, Greece |
Anna Spring | Naval Hospital of Athens, Athens, Greece |
Theodora Kalatzi | Naval Hospital of Athens, Athens, Greece |
Hara Nikolaou | ‘Aghia Olga-Konstantopouleion’ General Hospital, Athens, Greece |
Maria Laskou | ‘Aghia Olga-Konstantopouleion’ General Hospital, Athens, Greece |
Ioannis Strouvalis | ‘Aghia Olga-Konstantopouleion’ General Hospital, Athens, Greece |
Stavros Aloizos | General Hospital of Athens ‘NIMITS’, Athens, Greece |
Spyridon Kapogiannis | General Hospital of Athens ‘NIMITS’, Athens, Greece |
Ourania Soldatou | General Hospital of Athens ‘NIMITS’, Athens, Greece |
Matteo Bassetti | Azienda Ospedaliera Universitaria Santa Maria della Misericordia, Udine, Italy |
Chiara Adembri | Azienda Ospedaliero Universitaria Careggi, Florence, Italy |
Gianluca Villa | Azienda Ospedaliero Universitaria Careggi, Florence, Italy |
Antonio Giarratano | Università degli Studi di Palermo, Palermo, Italy |
Santi Maurizio Raineri | Università degli Studi di Palermo, Palermo, Italy |
Andrea Cortegiani | Università degli Studi di Palermo, Palermo, Italy |
Francesca Montalto | Università degli Studi di Palermo, Palermo, Italy |
Maria Teresa Strano | Università degli Studi di Palermo, Palermo, Italy |
V. Marco Ranieri | San Giovanni-Battista Molinette, Turin, Italy |
Claudio Sandroni | Catholic University School of Medicine, Rome, Italy |
Gennaro De Pascale | Catholic University School of Medicine, Rome, Italy |
Alexandre Molin | University of Genoa, Genoa, Italy |
Paolo Pelosi | University of Genoa, Genoa, Italy |
Luca Montagnani | Universitaria San Martino, Genova, Italy |
Rosario Urbino | Universitaria S.Giovanni Battista della Città di Torino, Turin, Italy |
Ilaria Mastromauro | Universitaria S.Giovanni Battista della Città di Torino, Turin, Italy |
Francesco G. De Rosa | Universitaria S.Giovanni Battista della Città di Torino, Turin, Italy |
V. Marco Ranieri | Universitaria S.Giovanni Battista della Città di Torino, Turin, Italy |
Teresa Cardoso | Hospital de Santo António, Porto, Portugal |
Susana Afonso | Hospital de St António dos Capuchos, Lisbon, Portgual |
João Gonçalves-Pereira | Hospital de São Francisco Xavier, Lisbon, Portugal |
João Pedro Baptista | Hospital de Universidade de Coimbra, Coimbra, Portugal |
Murat Akova | Hacettepe University School of Medicine, Ankara, Turkey |
Arife Özveren | Hacettepe University School of Medicine, Ankara, Turkey |
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De Waele, J.J., Lipman, J., Akova, M. et al. Risk factors for target non-attainment during empirical treatment with β-lactam antibiotics in critically ill patients. Intensive Care Med 40, 1340–1351 (2014). https://doi.org/10.1007/s00134-014-3403-8
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DOI: https://doi.org/10.1007/s00134-014-3403-8