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Vanneste D, Gijsen M, Maertens J, Van Paesschen W, Debaveye Y, Wauters J, Spriet I. Ceftazidime-related neurotoxicity in a patient with renal impairment: a case report and literature review. Infection 2024; 52:1113-1123. [PMID: 38305827 DOI: 10.1007/s15010-023-02167-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Accepted: 12/22/2023] [Indexed: 02/03/2024]
Abstract
PURPOSE We present the case of a 67-year-old woman with severely reduced renal clearance suffering from ceftazidime-induced encephalopathy. Subsequently, we search the literature to review and describe the neurotoxicity of ceftazidime. METHODS A search string was developed to search PubMed for relevant cases from which relevant information was extracted. Using the collected data a ROC analysis was performed in R to determine a neurotoxicity threshold. RESULTS Our patient suffered from progressive loss of consciousness and myoclonic seizures, with improvements noted a few days after discontinuation of treatment. The dose was not appropriately reduced to take into account her reduced renal function. The highest ceftazidime concentration recorded was 234.9 mg/mL. Using the Naranjo score we found a probable relationship between our patient's encephalopathy and ceftazidime administration. In the literature we found a total of 32 similar cases, most of which also had some form of renal impairment. Using our collected data and ceftazidime concentrations provided in the literature, a ROC analysis provided a neurotoxicity threshold of 78 mg/L for ceftazidime neurotoxicity. CONCLUSION Ceftazidime-related neurotoxicity is a known issue, especially in patients with severe renal impairment. Yet no concrete toxicity threshold has been reported so far. We propose the first toxicity threshold for ceftazidime of 78 mg/L. Future prospective studies are needed to validate and optimize the neurotoxicity threshold as upper limit for ceftazidime therapeutic drug monitoring.
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Affiliation(s)
- Dorian Vanneste
- Clinical Pharmacology and Pharmacotherapy, Department of Pharmaceutical and Pharmacological Sciences, KU Leuven, 3000, Louvain, Belgium.
| | - Matthias Gijsen
- Clinical Pharmacology and Pharmacotherapy, Department of Pharmaceutical and Pharmacological Sciences, KU Leuven, 3000, Louvain, Belgium
- Pharmacy Department, UZ Leuven, 3000, Louvain, Belgium
| | - Johan Maertens
- Haematology Unit, UZ Leuven, 3000, Louvain, Belgium
- Laboratory for Clinical Microbiology, Department of Microbiology, Immunology and Transplantation, KU Leuven, 3000, Louvain, Belgium
| | - Wim Van Paesschen
- Neurology Department, UZ Leuven, 3000, Louvain, Belgium
- Laboratory for Epilepsy Research, Department of Neurosciences, KU Leuven, 3000, Louvain, Belgium
| | - Yves Debaveye
- Intensive Care Unit, UZ Leuven, 3000, Louvain, Belgium
- Laboratory for Intensive Care Medicine, Department of Cellular and Molecular Medicine, KU Leuven, 3000, Louvain, Belgium
| | - Joost Wauters
- Medical Intensive Care Unit, UZ Leuven, 3000, Louvain, Belgium
- Laboratory for Clinical Infectious and Inflammatory Diseases, Department of Microbiology, Immunology and Transplantation, KU Leuven, 3000, Louvain, Belgium
| | - Isabel Spriet
- Clinical Pharmacology and Pharmacotherapy, Department of Pharmaceutical and Pharmacological Sciences, KU Leuven, 3000, Louvain, Belgium
- Pharmacy Department, UZ Leuven, 3000, Louvain, Belgium
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Curtiaud A, Petit M, Chommeloux J, Pineton de Chambrun M, Hekimian G, Schmidt M, Combes A, Luyt CE. Ceftazidime/avibactam serum concentration in patients on ECMO. J Antimicrob Chemother 2024; 79:1182-1186. [PMID: 38546808 DOI: 10.1093/jac/dkae091] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2023] [Accepted: 03/09/2024] [Indexed: 05/03/2024] Open
Abstract
OBJECTIVES The use of extracorporeal membrane oxygenation (ECMO) may alter blood levels of several drugs, including antibiotics, leading to under dosing of these drugs and thus to potential treatment failure. No data exist on pharmacokinetics of new antimicrobial, in particular ceftazidime/avibactam. We therefore perform this study to evaluate ceftazidime/avibactam blood levels in ECMO patients and find factors associated with underdosing. METHODS Retrospective observational study of patients on ECMO having received ceftazidime/avibactam and in whom trough blood levels of ceftazidime and avibactam were available. Main outcome measurement was the number of patients with ceftazidime and avibactam blood levels above predefined cut-off values, derived from the European Committee on Antimicrobial Susceptibility Testing (EUCAST) breakpoints for Enterobacteriaceae and Pseudomonas aeruginosa, namely 8 mg/L for ceftazidime and 4 mg/L for avibactam, and explored factors associated with underdosing. RESULTS Twenty-three ceftazidime/avibactam trough levels were available in 14 ECMO patients, all of them having received veno-venous ECMO for SARS-CoV-2-associated pneumonia. Although ceftazidime levels were above 8 mg/L in all except one patient, nine (39%) of the avibactam dosages were below 4 mg/L. Increased renal clearance (creatinine clearance > 130 mL/min) was the main factor associated with under dosing, since 7 out of the 10 dosages below the predefined cut-offs were measured in patients with this condition. CONCLUSIONS In ECMO patients receiving ceftazidime/avibactam, ceftazidime and avibactam serum levels are above EUCAST breakpoints in most cases, justifying the use of normal dosing in ECMO patients. Increased renal clearance may lead to ceftazidime and avibactam under dosing.
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Affiliation(s)
- Anaïs Curtiaud
- Service de médecine Intensive Réanimation, Sorbonne Université, Groupe Hospitalier Pitié-Salpêtrière, Institut de Cardiologie, Assistance Publique-Hôpitaux de Paris, Paris, France
| | - Matthieu Petit
- Service de médecine Intensive Réanimation, Sorbonne Université, Groupe Hospitalier Pitié-Salpêtrière, Institut de Cardiologie, Assistance Publique-Hôpitaux de Paris, Paris, France
| | - Juliette Chommeloux
- Service de médecine Intensive Réanimation, Sorbonne Université, Groupe Hospitalier Pitié-Salpêtrière, Institut de Cardiologie, Assistance Publique-Hôpitaux de Paris, Paris, France
| | - Marc Pineton de Chambrun
- Service de médecine Intensive Réanimation, Sorbonne Université, Groupe Hospitalier Pitié-Salpêtrière, Institut de Cardiologie, Assistance Publique-Hôpitaux de Paris, Paris, France
- Sorbonne Université, GRC 30, RESPIRE, UMRS 1166, ICAN Institute of Cardiometabolism and Nutrition, Paris, France
| | - Guillaume Hekimian
- Service de médecine Intensive Réanimation, Sorbonne Université, Groupe Hospitalier Pitié-Salpêtrière, Institut de Cardiologie, Assistance Publique-Hôpitaux de Paris, Paris, France
| | - Matthieu Schmidt
- Service de médecine Intensive Réanimation, Sorbonne Université, Groupe Hospitalier Pitié-Salpêtrière, Institut de Cardiologie, Assistance Publique-Hôpitaux de Paris, Paris, France
- Sorbonne Université, GRC 30, RESPIRE, UMRS 1166, ICAN Institute of Cardiometabolism and Nutrition, Paris, France
| | - Alain Combes
- Service de médecine Intensive Réanimation, Sorbonne Université, Groupe Hospitalier Pitié-Salpêtrière, Institut de Cardiologie, Assistance Publique-Hôpitaux de Paris, Paris, France
- Sorbonne Université, GRC 30, RESPIRE, UMRS 1166, ICAN Institute of Cardiometabolism and Nutrition, Paris, France
| | - Charles-Edouard Luyt
- Service de médecine Intensive Réanimation, Sorbonne Université, Groupe Hospitalier Pitié-Salpêtrière, Institut de Cardiologie, Assistance Publique-Hôpitaux de Paris, Paris, France
- Sorbonne Université, GRC 30, RESPIRE, UMRS 1166, ICAN Institute of Cardiometabolism and Nutrition, Paris, France
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Robosa RS, Lau C, Stojanova J, Chin CW, Marriott DJE. Ceftazidime Plasma Concentrations and Neurotoxicity: The Importance of Therapeutic Drug Monitoring in Patients Undergoing Different Modalities of Renal Replacement Therapy. A Grand Round. Ther Drug Monit 2023; 45:711-713. [PMID: 37448154 DOI: 10.1097/ftd.0000000000001124] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2023] [Accepted: 05/21/2023] [Indexed: 07/15/2023]
Abstract
ABSTRACT Ceftazidime-avibactam (CTZ-AVM) is a novel cephalosporin/beta-lactamase inhibitor with broad-spectrum activity against multidrug-resistant Pseudomonas aeruginosa . Ceftazidime-induced neurotoxicity is a well-described adverse effect, particularly in patients with renal insufficiency. However, appropriate dosing of ceftazidime-avibactam in patients undergoing renal replacement therapy (RRT) is sparsely investigated, and therapeutic drug monitoring to guide dosing remains lacking. Furthermore, when dose adjustment for impaired renal function is based on CTZ-AVM product information, inferior cure rates have been obtained compared with those with the standard therapy for intra-abdominal infections. Maintaining an effective dose while avoiding toxicity in these patients is challenging. Here, the authors describe the case of a critically ill patient, undergoing 2 modalities of RRT, who developed ceftazidime-induced neurotoxicity as confirmed using ceftazidime therapeutic drug monitoring. This case illustrates a therapeutic drug monitoring-based approach for guiding ceftazidime-avibactam dosing in this context and in diagnosing the cause of neurological symptoms and signs.
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Affiliation(s)
- Roselle S Robosa
- Department of Microbiology and Infectious Diseases, St Vincent's Hospital
| | - Cindy Lau
- Pharmacy Department, St Vincent's Hospital
- School of Pharmacy, Faculty of Medicine and Health, University of Sydney
| | - Jana Stojanova
- Department of Clinical Pharmacology and Toxicology, St. Vincent's Hospital
| | | | - Deborah J E Marriott
- Department of Microbiology and Infectious Diseases, St Vincent's Hospital
- School of Medicine, University of New South Wales, Sydney, Australia
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Qian ET, Wang L, Stollings JL, Casey JD, Rice TW, Semler MW. Piperacillin-Tazobactam Versus Anti-Pseudomonal Cephalosporins and Renal and Neurologic Outcomes in Critically Ill Adults: A Secondary Analysis of the SMART Trial. J Intensive Care Med 2023; 38:1127-1135. [PMID: 37357717 PMCID: PMC10616997 DOI: 10.1177/08850666231184177] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2022] [Revised: 06/02/2023] [Accepted: 06/08/2023] [Indexed: 06/27/2023]
Abstract
Background: Prior studies suggest associations between receipt of piperacillin-tazobactam and development of acute kidney injury and receipt of anti-pseudomonal cephalosporins and neurotoxicity. We compared clinically-relevant renal and neurologic outcomes in critically ill patients who received piperacillin-tazobactam versus anti-pseudomonal cephalosporins. Methods: We conducted a secondary analysis of data from the Isotonic Solutions and Major Adverse Renal Events Trial examining patients who received piperacillin-tazobactam or an anti-pseudomonal cephalosporin within 24 h of intensive care unit admission. We performed multivariable analysis using a proportional odds model to examine the association between the first antibiotic received and the outcomes of Major Adverse Kidney Events within 30 days (MAKE30) and days alive and free of delirium and coma to day 28. Results: 3199 were included in the study; 2375 (74%) receiving piperacillin-tazobactam and 824 (26%) receiving anti-pseudomonal cephalosporin. After adjustment for prespecified confounders, initial receipt of piperacillin-tazobactam, compared to anti-pseudomonal cephalosporins, was not associated with higher incidence of MAKE30 (adjusted odds ratio, 1.03; 95% CI, 0.83-1.27; P = .80) but was associated with a greater number of days alive and free of delirium and coma (adjusted odds ratio, 1.18; 95% CI, 1.00-1.38; P = .04). In a sensitivity analysis adjusting for baseline receipt of medications which may impact neuro function, this finding was not significant. Conclusion: Among critically ill adults, receipt of piperacillin-tazobactam was not associated with an increased incidence of death, renal replacement therapy, or persistent renal dysfunction or a greater number of days alive and free of delirium and coma. Randomized trials are needed to inform the choice of antibiotics for empiric treatment infection in critically ill adults.
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Affiliation(s)
- Edward T. Qian
- Department of Medicine, Division of Allergy, Pulmonary, and Critical Care, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Li Wang
- Department of Biostatistics, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Joanna L. Stollings
- Department of Pharmaceutical Services, Vanderbilt University Medical Center, Nashville, TN, USA
- Vanderbilt University Medical Center, Critical Illness Brain Dysfunction Survivorship Center, Nashville, TN, USA
| | - Jonathan D. Casey
- Department of Medicine, Division of Allergy, Pulmonary, and Critical Care, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Todd W. Rice
- Department of Medicine, Division of Allergy, Pulmonary, and Critical Care, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Matthew W. Semler
- Department of Medicine, Division of Allergy, Pulmonary, and Critical Care, Vanderbilt University Medical Center, Nashville, TN, USA
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Butranova OI, Ushkalova EA, Zyryanov SK, Chenkurov MS, Baybulatova EA. Pharmacokinetics of Antibacterial Agents in the Elderly: The Body of Evidence. Biomedicines 2023; 11:1633. [PMID: 37371728 DOI: 10.3390/biomedicines11061633] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2023] [Revised: 05/31/2023] [Accepted: 06/01/2023] [Indexed: 06/29/2023] Open
Abstract
Infections are important factors contributing to the morbidity and mortality among elderly patients. High rates of consumption of antimicrobial agents by the elderly may result in increased risk of toxic reactions, deteriorating functions of various organs and systems and leading to the prolongation of hospital stay, admission to the intensive care unit, disability, and lethal outcome. Both safety and efficacy of antibiotics are determined by the values of their plasma concentrations, widely affected by physiologic and pathologic age-related changes specific for the elderly population. Drug absorption, distribution, metabolism, and excretion are altered in different extents depending on functional and morphological changes in the cardiovascular system, gastrointestinal tract, liver, and kidneys. Water and fat content, skeletal muscle mass, nutritional status, use of concomitant drugs are other determinants of pharmacokinetics changes observed in the elderly. The choice of a proper dosing regimen is essential to provide effective and safe antibiotic therapy in terms of attainment of certain pharmacodynamic targets. The objective of this review is to perform a structure of evidence on the age-related changes contributing to the alteration of pharmacokinetic parameters in the elderly.
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Affiliation(s)
- Olga I Butranova
- Department of General and Clinical Pharmacology, Peoples' Friendship University of Russia named after Patrice Lumumba (RUDN University), 6 Miklukho-Maklaya St., 117198 Moscow, Russia
| | - Elena A Ushkalova
- Department of General and Clinical Pharmacology, Peoples' Friendship University of Russia named after Patrice Lumumba (RUDN University), 6 Miklukho-Maklaya St., 117198 Moscow, Russia
| | - Sergey K Zyryanov
- Department of General and Clinical Pharmacology, Peoples' Friendship University of Russia named after Patrice Lumumba (RUDN University), 6 Miklukho-Maklaya St., 117198 Moscow, Russia
- State Budgetary Institution of Healthcare of the City of Moscow "City Clinical Hospital No. 24 of the Moscow City Health Department", Pistzovaya Srt. 10, 127015 Moscow, Russia
| | - Mikhail S Chenkurov
- Department of General and Clinical Pharmacology, Peoples' Friendship University of Russia named after Patrice Lumumba (RUDN University), 6 Miklukho-Maklaya St., 117198 Moscow, Russia
| | - Elena A Baybulatova
- Department of General and Clinical Pharmacology, Peoples' Friendship University of Russia named after Patrice Lumumba (RUDN University), 6 Miklukho-Maklaya St., 117198 Moscow, Russia
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Futagi Y, Ito Y, Nakade J, Fujita A, Shimada T, Yoshida M, Takahashi Y, Kawano M, Taniguchi T, Sai Y. Ceftriaxone-induced encephalopathy in a patient with a solitary kidney. Int J Infect Dis 2022; 122:722-724. [PMID: 35843497 DOI: 10.1016/j.ijid.2022.07.036] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2022] [Revised: 07/08/2022] [Accepted: 07/11/2022] [Indexed: 10/17/2022] Open
Abstract
Ceftriaxone (CRO) is a long-acting third-generation cephalosporin antibiotic. We present a case of CRO-induced encephalopathy in an 84-year-old male patient with a solitary right kidney, admitted with bilateral pneumonia and right pyelonephritis. Intravenous CRO (2 g, every 24 hr) was started for the infection, but tonic-clonic seizures of the left face and left upper extremity appeared on the 8th day. To examine the relationship between CRO administration and the seizures, we measured CRO concentrations in the patients' plasma/serum and cerebrospinal fluid (CSF). The CRO concentration in blood at the onset of encephalopathy was estimated to have been approximately 60 μg/mL based on a simulation curve. We also calculated the pharmacokinetic parameters after CRO administration. The patient had about one-tenth of the total body clearance and one-third of the volume of distribution compared with healthy adults, and the elimination half-life was about 3 times longer.
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Affiliation(s)
- Yuya Futagi
- Department of Hospital Pharmacy, University Hospital, Kanazawa University, 13-1 Takara-machi, Kanazawa, 920-8641, Japan.
| | - Yuriko Ito
- Department of Hospital Pharmacy, University Hospital, Kanazawa University, 13-1 Takara-machi, Kanazawa, 920-8641, Japan
| | - Junya Nakade
- Department of Hospital Pharmacy, University Hospital, Kanazawa University, 13-1 Takara-machi, Kanazawa, 920-8641, Japan; Department of Infection Control and Prevention, University Hospital, Kanazawa University, 13-1 Takara-machi, Kanazawa, 920-8641, Japan
| | - Arimi Fujita
- Department of Hospital Pharmacy, University Hospital, Kanazawa University, 13-1 Takara-machi, Kanazawa, 920-8641, Japan; Department of Clinical Pharmacokinetics, Graduate School of Medical Sciences, Kanazawa University, 13-1 Takara-machi, Kanazawa, 920-8641, Japan
| | - Tsutomu Shimada
- Department of Hospital Pharmacy, University Hospital, Kanazawa University, 13-1 Takara-machi, Kanazawa, 920-8641, Japan; Department of Clinical Pharmacokinetics, Graduate School of Medical Sciences, Kanazawa University, 13-1 Takara-machi, Kanazawa, 920-8641, Japan
| | - Misaki Yoshida
- Department of Rheumatology, University Hospital, Kanazawa University, 13-1 Takara-machi, Kanazawa, 920-8641, Japan
| | - Yoshinori Takahashi
- Department of Infection Control and Prevention, University Hospital, Kanazawa University, 13-1 Takara-machi, Kanazawa, 920-8641, Japan; Department of Rheumatology, University Hospital, Kanazawa University, 13-1 Takara-machi, Kanazawa, 920-8641, Japan
| | - Mitsuhiro Kawano
- Department of Rheumatology, University Hospital, Kanazawa University, 13-1 Takara-machi, Kanazawa, 920-8641, Japan
| | - Takumi Taniguchi
- Intensive Care Unit, University Hospital, Kanazawa University, 13-1 Takara-machi, Kanazawa, 920-8641, Japan
| | - Yoshimichi Sai
- Department of Hospital Pharmacy, University Hospital, Kanazawa University, 13-1 Takara-machi, Kanazawa, 920-8641, Japan; Department of Clinical Pharmacokinetics, Graduate School of Medical Sciences, Kanazawa University, 13-1 Takara-machi, Kanazawa, 920-8641, Japan
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Soriano A, Carmeli Y, Omrani AS, Moore LSP, Tawadrous M, Irani P. Ceftazidime-Avibactam for the Treatment of Serious Gram-Negative Infections with Limited Treatment Options: A Systematic Literature Review. Infect Dis Ther 2021; 10:1989-2034. [PMID: 34379310 PMCID: PMC8355581 DOI: 10.1007/s40121-021-00507-6] [Citation(s) in RCA: 53] [Impact Index Per Article: 17.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2021] [Accepted: 07/16/2021] [Indexed: 12/29/2022] Open
Abstract
INTRODUCTION A systematic literature review was undertaken to evaluate real-world use of ceftazidime-avibactam for infections due to aerobic Gram-negative organisms in adults with limited treatment options. METHODS Literature searches retrieved peer-reviewed publications and abstracts from major international infectious disease congresses from January 2015 to February 2021. Results were screened using pre-defined criteria to limit the dataset to relevant publications (notable exclusions were paediatric data and outcomes data for bacteria intrinsically resistant to ceftazidime-avibactam). Data for included publications were subjected to qualitative synthesis. RESULTS Seventy-three relevant publications (62 peer-reviewed articles; 10 abstracts) comprising 1926 patients treated with ceftazidime-avibactam (either alone or combined with other antimicrobials) and 1114 comparator/control patients were identified. All patients were hospitalised for serious illness and most had multiple comorbidities. The most common infections were pneumonia, bacteraemia, and skin/soft tissue, urinary tract, or abdominal infections; smaller numbers of patients with meningitis, febrile neutropenia, osteomyelitis, and cystic fibrosis were also included. Carbapenem-resistant or carbapenemase-producing Enterobacterales (CRE; n = 1718) and carbapenem-resistant, multidrug-resistant (MDR), and extensively drug-resistant Pseudomonas aeruginosa (n = 150) were the most common pathogens. Most publications reported positive outcomes for ceftazidime-avibactam treatment (clinical success rates ranged from 45 to 100% and reported 30-day mortality from 0 to 63%), which were statistically superior versus comparators in some studies. ceftazidime-avibactam resistance emergence occurred infrequently and mostly in Klebsiella pneumoniae carbapenemase (KPC)-producing K. pneumoniae strains. CONCLUSION This review provides qualitative evidence of successful use of ceftazidime-avibactam for the treatment of hospitalised patients with CRE and MDR P. aeruginosa infections with limited treatment options.
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Affiliation(s)
- Alex Soriano
- Division of Infectious Diseases, Hospital Clínic de Barcelona, Carrer de Villarroel 170, 08036, Barcelona, Spain.
- Institut D'Investigacions Biomèdiques August Pi I Sunyer (IDIBAPS), University of Barcelona, Barcelona, Spain.
| | - Yehuda Carmeli
- Division of Epidemiology, The National Center for Antibiotic Resistance and Infection Control, Tel Aviv Sourasky Medical Center, Tel Aviv, Israel
| | - Ali S Omrani
- Division of Infectious Diseases, Department of Medicine, Hamad Medical Corporation, Doha, Qatar
- Communicable Diseases Center, Hamad Medical Corporation, Doha, Qatar
| | - Luke S P Moore
- Chelsea & Westminster NHS Foundation Trust, London, UK
- Imperial College Healthcare NHS Trust, London, UK
- Imperial College London, London, UK
| | | | - Paurus Irani
- Global Medical Affairs, Anti-infectives, Pfizer, Tadworth, Surrey, UK
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