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Kouroupis PC, O'Rourke N, Kelly S, McKittrick M, Noppe E, Reyes LF, Rodriguez A, Martin-Loeches I. Hospital-acquired bacterial pneumonia in critically ill patients: from research to clinical practice. Expert Rev Anti Infect Ther 2024; 22:423-433. [PMID: 38743435 DOI: 10.1080/14787210.2024.2354828] [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: 02/26/2024] [Accepted: 05/09/2024] [Indexed: 05/16/2024]
Abstract
INTRODUCTION Hospital-acquired pneumonia (HAP) represents a significant cause of mortality among critically ill patients admitted to Intensive Care Units (ICUs). Timely and precise diagnosis is imperative to enhance therapeutic efficacy and patient outcomes. However, the diagnostic process is challenged by test limitations and a wide-ranging list of differential diagnoses, particularly in patients exhibiting escalating oxygen requirements, leukocytosis, and increased secretions. AREAS COVERED This narrative review aims to update diagnostic modalities, facilitating the prompt identification of nosocomial pneumonia while guiding, developing, and assessing therapeutic interventions. A comprehensive literature review was conducted utilizing the MEDLINE/PubMed database from 2013 to April 2024. EXPERT OPINION An integrated approach that integrates clinical, microbiological, and imaging tools is paramount. Progress in diagnostic techniques, including novel molecular methods, the expanding utilization and accuracy of bedside ultrasound, and the emergence of Artificial Intelligence, coupled with an improved comprehension of lung microbiota and host-pathogen interactions, continues to enhance our capability to accurately and swiftly identify HAP and its causative agents. This advancement enables the refinement of treatment strategies and facilitates the implementation of precision medicine approaches.
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Affiliation(s)
- Pompeo Costantino Kouroupis
- Department of Intensive Care Medicine, Multidisciplinary Intensive Care Research Organization (MICRO), St James' Hospital, Dublin, Ireland
| | - Niall O'Rourke
- Department of Intensive Care Medicine, Multidisciplinary Intensive Care Research Organization (MICRO), St James' Hospital, Dublin, Ireland
| | - Sinead Kelly
- Department of Intensive Care Medicine, Multidisciplinary Intensive Care Research Organization (MICRO), St James' Hospital, Dublin, Ireland
| | - Myles McKittrick
- Department of Intensive Care Medicine, Multidisciplinary Intensive Care Research Organization (MICRO), St James' Hospital, Dublin, Ireland
| | - Elne Noppe
- Department of Intensive Care Medicine, Multidisciplinary Intensive Care Research Organization (MICRO), St James' Hospital, Dublin, Ireland
| | - Luis F Reyes
- Department of Intensive Care Medicine, Unisabana Center for Translational Science, Chia, Colombia
- Department of Intensive Care Medicine, Clinica Universidad de La Sabana, Chia, Colombia
- Department of Intensive Care Medicine, Pandemic Sciences Institute, University of Oxford, Oxford, UK
| | - Alejandro Rodriguez
- Critical Care Department, Hospital Universitari de Tarragona Joan XXIII, Tarragona, Spain
- Department of Intensive Care Medicine, URV/IISPV/CIBERES, Tarragona, Spain
| | - Ignacio Martin-Loeches
- Department of Intensive Care Medicine, Multidisciplinary Intensive Care Research Organization (MICRO), St James' Hospital, Dublin, Ireland
- Hospital Clinic, Universitat de Barcelona, IDIBAPS, CIBERES, Barcelona, Spain
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Calabretta D, Martìn-Loeches I, Torres A. New Guidelines for Severe Community-acquired Pneumonia. Semin Respir Crit Care Med 2024; 45:274-286. [PMID: 38428839 DOI: 10.1055/s-0043-1777797] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/03/2024]
Abstract
In 2023, the new European guidelines on severe community-acquired pneumonia, providing clinical practice recommendations for the management of this life-threatening infection, characterized by a high burden of mortality, morbidity, and costs for the society. This review article aims to summarize the principal evidence related to eight different questions covered in the guidelines, by also highlighting the future perspectives for research activity.
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Affiliation(s)
- Davide Calabretta
- Department of Pathophysiology and Transplantation, University of Milan, Milan, Italy
- Institut d'Investigacions Biomèdiques August Pi I Sunyer (IDIBAPS), Barcelona, Spain
| | - Ignacio Martìn-Loeches
- Department of Intensive Care Medicine, Multidisciplinary Intensive Care Research Organisation (MICRO), St James's Hospital, Dublin, Ireland
- Trinity College Dublin, Dublin, Ireland
- CIBER of Respiratory Diseases (CIBERES), Institute of Health Carlos III, Madrid, Spain
- Department of Pulmonology, Hospital Clínic of Barcelona, Barcelona, Spain
| | - Antoni Torres
- Institut d'Investigacions Biomèdiques August Pi I Sunyer (IDIBAPS), Barcelona, Spain
- Department of Medicine, University of Barcelona, Barcelona, Spain
- Centro de Investigación en Red de Enfermedades Respiratorias (CIBERES), Madrid, Spain
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Yadav P. Challenges & Solutions for Recent Advancements in Multi-Drugs Resistance Tuberculosis: A Review. Microbiol Insights 2023; 16:11786361231152438. [PMID: 36741475 PMCID: PMC9893349 DOI: 10.1177/11786361231152438] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2022] [Accepted: 01/05/2023] [Indexed: 01/31/2023] Open
Abstract
In MDR-TB, mycobacterium is resistant to battlefront drugs like rifampicin and isoniazid. Now it's an urgent global challenge for treatment & diagnosis because more than 50% of drugs are resistant. Till today's information, 5 reasons are liable for MDR: (1) Errors of physicians/patients in therapy management, (2) Complexity and poor vascularization of granulomatous lesions, which obstruct drug distribution to some sites, leading to resistance development, (3) Intrinsic drug resistance of tubercle bacilli, (4) Formation of non-replicating, drug-tolerant bacilli inside the granulomas, (5) Development of mutations in Mtb genes, which are the foremost important molecular mechanisms of resistance. the most contribution of this work is a brief & clear explanation of things chargeable for resistant development, and recent diagnostic & treatment methods for MDR-TB. This study shall help researchers & scientists to develop replacement rapid diagnostic tools, drugs, and treatment protocols.
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Affiliation(s)
- Pramod Yadav
- Pramod Yadav, Department of AFAF, Amity
University Noida, J-1 Block, Noida, Uttar Pradesh 201313, India. Emails:
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Bassetti M, Kanj SS, Kiratisin P, Rodrigues C, Van Duin D, Villegas MV, Yu Y. Early appropriate diagnostics and treatment of MDR Gram-negative infections. JAC Antimicrob Resist 2022; 4:dlac089. [PMID: 36111208 PMCID: PMC9469888 DOI: 10.1093/jacamr/dlac089] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
The term difficult-to-treat resistance has been recently coined to identify Gram-negative bacteria exhibiting resistance to all fluoroquinolones and all β-lactam categories, including carbapenems. Such bacteria are posing serious challenges to clinicians trying to identify the best therapeutic option for any given patient. Delayed appropriate therapy has been associated with worse outcomes including increase in length of stay, increase in total in-hospital costs and ∼20% increase in the risk of in-hospital mortality. In addition, time to appropriate antibiotic therapy has been shown to be an independent predictor of 30 day mortality in patients with resistant organisms. Improving and anticipating aetiological diagnosis through optimizing not only the identification of phenotypic resistance to antibiotic classes/agents, but also the identification of specific resistance mechanisms, would have a major impact on reducing the frequency and duration of inappropriate early antibiotic therapy. In light of these considerations, the present paper reviews the increasing need for rapid diagnosis of bacterial infections and efficient laboratory workflows to confirm diagnoses and facilitate prompt de-escalation to targeted therapy, in line with antimicrobial stewardship principles. Rapid diagnostic tests currently available and future perspectives for their use are discussed. Early appropriate diagnostics and treatment of MDR Gram-negative infections require a multidisciplinary approach that includes multiple different diagnostic methods and further consensus of algorithms, protocols and guidelines to select the optimal antibiotic therapy.
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Affiliation(s)
- Matteo Bassetti
- Department of Health Science, University of Genoa, Italy
- Infectious Diseases Clinic, Ospedale Policlinico San Martino Hospital – IRCCS, Genoa, Italy
| | - Souha S Kanj
- Division of Infectious Diseases, American University of Beirut Medical Center, Beirut, Lebanon
| | - Pattarachai Kiratisin
- Department of Microbiology, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - Camilla Rodrigues
- Department of Microbiology, P. D. Hinduja Hospital and Medical Research Centre, Mumbai, Maharashtra, India
| | - David Van Duin
- Department of Medicine, University of North Carolina School of Medicine, Chapel Hill, NC, USA
| | - María Virginia Villegas
- Grupo de Investigaciones en Resistencia Antimicrobiana y Epidemiología Hospitalaria (RAEH), Universidad El Bosque, Bogotá DC, Colombia
| | - Yunsong Yu
- Department of Infectious Diseases, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
- Key Laboratory of Microbial Technology and Bioinformatics of Zhejiang Province, Hangzhou, Zhejiang, China
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Wicky PH, Martin-Loeches I, Timsit JF. "HAP and VAP after Guidelines". Semin Respir Crit Care Med 2022; 43:248-254. [PMID: 35042265 DOI: 10.1055/s-0041-1740246] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
Nosocomial pneumonia is associated with worsened prognosis when diagnosed in intensive care unit (ICU), ranging from 12 to 48% mortality. The incidence rate of ventilation-acquired pneumonia tends to decrease below 15/1,000 intubation-day. Still, international guidelines are heterogeneous about diagnostic criteria because of inaccuracy of available methods. New entities have thus emerged concerning lower respiratory tract infection, namely ventilation-acquired tracheobronchitis (VAT), or ICU-acquired pneumonia (ICUAP), eventually requiring invasive ventilation (v-ICUAP), according to the type of ventilation support. The potential discrepancy with non-invasive methods could finally lead to underdiagnosis in almost two-thirds of non-intubated patients. Delayed diagnostic could explain in part the 2-fold increase in mortality of penumonia when invasive ventilation is initiated. Here we discuss the rationale underlying this new classification.Many situations can lead to misdiagnosis, even more when the invasive mechanical ventilation is initiated. The chest radiography lacks sntivity and specificity for diagnosing pneumonia. The place of chest computed tomography and lung ultrasonography for routine diagnostic of new plumonary infiltrate remain to be evaluated.Microbiological methods used to confirm the diagnostic can be heterogeneous. The development of molecular diagnostic tools may improve the adequacy of antimicrobial therapies of ventilated patients with pneumonia, but we need to further assess its impact in non-ventilated pneumonia.In this review we introduce distinction between hospital-acquired pneumonia according to the localization in the hospital and the oxygenation/ventilation mode. A clarification of definition is the first step to develop more accurate diagnostic strategies and to improve the patients' prognosis.
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Affiliation(s)
- Paul-Henri Wicky
- Medical and Infectious Diseases Intensive Care Unit, AP-HP, Bichat Hospital, Paris Diderot University, Paris, France
| | - Ignacio Martin-Loeches
- Department of Anaesthesia and Critical Care Medicine, St. James's Hospital, Dublin, Ireland.,Multidisciplinary Intensive Care Research Organization (MICRO), St James's Hospital, Dublin, Ireland
| | - Jean-François Timsit
- Medical and Infectious Diseases Intensive Care Unit, AP-HP, Bichat Hospital, Paris Diderot University, Paris, France.,UMR 1137, IAME, Université Paris Diderot, Paris, France
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Riccobono E, Bussini L, Giannella M, Viale P, Rossolini GM. Rapid diagnostic tests in the management of pneumonia. Expert Rev Mol Diagn 2021; 22:49-60. [PMID: 34894965 DOI: 10.1080/14737159.2022.2018302] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
INTRODUCTION Pneumonia is one of the main causes of mortality associated with infectious diseases worldwide. Several challenges have been identified in the management of patients with pneumonia, ranging from accurate and cost-effective microbiological investigations, prompt and adequate therapeutic management, and optimal treatment duration. AREAS COVERED In this review, an updated summary on the current management of pneumonia patients is provided and the epidemiological issues of infectious respiratory diseases, which in the current pandemic situation are of particular concern, are addressed. The clinical and microbiological approaches to pneumonia diagnosis are reviewed, including discussion about the new molecular assays pointing out both their strengths and limitations. Finally, the current recommendations about antibiotic treatment are examined and discussed depending on the epidemiological contexts, including those with high prevalence of multidrug-resistant bacteria. EXPERT OPINION We claim that rapid diagnostic tests, if well-positioned in the diagnostic workflow and reserved for the subset of patients who could most benefit from these technologies, may represent an interesting and feasible tool to optimize timing of targeted treatments especially in terms of early de-escalation or discontinuation of antibiotic therapy.
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Affiliation(s)
- Eleonora Riccobono
- Department of Experimental and Clinical Medicine, University of Florence, Florence, Italy
| | - Linda Bussini
- Infectious Diseases Unit, Department of Medical and Surgical Sciences, Policlinico Sant' Orsola, Bologna, Italy
| | - Maddalena Giannella
- Infectious Diseases Unit, Department of Medical and Surgical Sciences, Policlinico Sant' Orsola, Bologna, Italy
| | - Pierluigi Viale
- Infectious Diseases Unit, Department of Medical and Surgical Sciences, Policlinico Sant' Orsola, Bologna, Italy
| | - Gian Maria Rossolini
- Department of Experimental and Clinical Medicine, University of Florence, Florence, Italy.,Clinical Microbiology and Virology Unit, Careggi University Hospital, Florence, Italy
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Chen H, Bai X, Gao Y, Liu W, Yao X, Wang J. Profile of Bacteria with ARGs Among Real-World Samples from ICU Admission Patients with Pulmonary Infection Revealed by Metagenomic NGS. Infect Drug Resist 2021; 14:4993-5004. [PMID: 34866919 PMCID: PMC8636693 DOI: 10.2147/idr.s335864] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2021] [Accepted: 11/16/2021] [Indexed: 12/27/2022] Open
Abstract
Background Treatment of pulmonary infections in the intensive care unit (ICU) represents a great challenge, especially infections caused by antibiotic resistance pathogens. A thorough and up-to-date knowledge of the local spectrum of antibiotic resistant bacteria can improve the antibiotic treatment efficiency. In this study, we aimed to reveal the profile of bacteria with antibiotic resistance genes (ARGs) in real-world samples from ICU admission patients with pulmonary infection in Mainland, China, by metagenomic next-generation sequencing (mNGS). Methods A total of 504 different types of clinical samples from 452 ICU admission patients with pulmonary infection were detected by mNGS analysis. Results A total of 485 samples from 434 patients got successful mNGS results. Among 434 patients, one or more bacteria with ARGs were detected in 192 patients (44.24%, 192/434), and ≥2 bacteria with ARGs were detected in 85 (19.59%, 85/434) patients. The predominant detected bacteria were Corynebacterium striatum (C. striatum) (11.76%, 51/434), Acinetobacter baumannii (A. baumannii) (11.52%, 50/434) and Enterococcus faecium (E. faecium) (8.99%, 39/434). ermX conferred resistance to MSLB and cmx to phenicol were the only two ARGs detected in C. striatum; in A. baumannii, most of ARGs were resistance-nodulation-division (RND)-type efflux pumps genes, which conferred resistance to multi-drug; ermB conferred resistance to MSLB and efmA to multi-drug were the predominant ARGs in E. faecium. Bacteria with ARGs were detected in 50% (140/280) bronchoalveolar lavage fluid (BALF) and 50.5% (48/95) sputum samples, which were significantly higher than in blood and cerebrospinal fluid (CSF) samples. Conclusion High level of bacteria with ARGs was observed in clinical samples, especially BALF and sputum samples from ICU admission patients with pulmonary infection in Mainland, China. And C. striatum resistant to MSLB and/or phenicol, multi-drug resistance A. baumannii and E. faecium were the lead bacteria.
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Affiliation(s)
- Huijuan Chen
- Department of Biomedical Engineering, College of Life Science and Bioengineering, Beijing University of Technology, Beijing, People's Republic of China
| | - Xinhua Bai
- Department of Clinical Laboratory, Beijing Capitalbio Medlab, Beijing, People's Republic of China
| | - Yang Gao
- Department of Clinical Laboratory, Beijing Capitalbio Medlab, Beijing, People's Republic of China
| | - Wenxuan Liu
- Department of Clinical Laboratory, Beijing Capitalbio Medlab, Beijing, People's Republic of China
| | - Xuena Yao
- Department of Clinical Laboratory, Beijing Capitalbio Medlab, Beijing, People's Republic of China
| | - Jing Wang
- Department of Clinical Laboratory, Beijing Capitalbio Medlab, Beijing, People's Republic of China
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Li Y, Li X, Wen Z, Zhang X, Liu Y, Wei L. Effect of open versus closed endotracheal suctioning on intracranial pressure in severe brain-injured children: Study protocol for a randomized controlled trial. Nurs Open 2021; 8:2886-2891. [PMID: 34037323 PMCID: PMC8363411 DOI: 10.1002/nop2.656] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2020] [Revised: 09/10/2020] [Accepted: 09/11/2020] [Indexed: 12/14/2022] Open
Abstract
AIM To compare the effects and safety of open and closed endotracheal suction in children with severe brain injury. DESIGN A single-blinding, single-centre randomized controlled trial (RCT). METHODS The children with severe brain injury admitted to the intensive care unit (ICU) from 1 September 2020-31 August 2022 will be included. And a total of 172 children with severe brain injury are expected to be included. The intracranial pressure, SpO2 and heart rate before suctioning, at the end of suction, and at 5 and 10 min after suction, the estimated sputum volume for each suction, the incidence of ventilator-associated pneumonia, the duration of mechanical ventilation and the length of ICU stay will be analysed. RESULTS This present RCT has been prospectively registered in China Clinical Trial Registry (http://www.chictr.org.cn, ChiCTR2000030963). This present study is expected to provide reliable evidence to the airway management in children with severe brain injury.
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Affiliation(s)
- Yan Li
- SICU, Children's Hospital of Nanjing Medical University, Nanjing City, China
| | - Xiaoyan Li
- SICU, Children's Hospital of Nanjing Medical University, Nanjing City, China
| | - Zunjia Wen
- SICU, Children's Hospital of Nanjing Medical University, Nanjing City, China
| | - Xin Zhang
- SICU, Children's Hospital of Nanjing Medical University, Nanjing City, China
| | - Yingfei Liu
- SICU, Children's Hospital of Nanjing Medical University, Nanjing City, China
| | - Li Wei
- SICU, Children's Hospital of Nanjing Medical University, Nanjing City, China
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Xu E, Pérez-Torres D, Fragkou PC, Zahar JR, Koulenti D. Nosocomial Pneumonia in the Era of Multidrug-Resistance: Updates in Diagnosis and Management. Microorganisms 2021; 9:534. [PMID: 33807623 PMCID: PMC8001201 DOI: 10.3390/microorganisms9030534] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2021] [Revised: 02/25/2021] [Accepted: 03/03/2021] [Indexed: 12/11/2022] Open
Abstract
Nosocomial pneumonia (NP), including hospital-acquired pneumonia in non-intubated patients and ventilator-associated pneumonia, is one of the most frequent hospital-acquired infections, especially in the intensive care unit. NP has a significant impact on morbidity, mortality and health care costs, especially when the implicated pathogens are multidrug-resistant ones. This narrative review aims to critically review what is new in the field of NP, specifically, diagnosis and antibiotic treatment. Regarding novel imaging modalities, the current role of lung ultrasound and low radiation computed tomography are discussed, while regarding etiological diagnosis, recent developments in rapid microbiological confirmation, such as syndromic rapid multiplex Polymerase Chain Reaction panels are presented and compared with conventional cultures. Additionally, the volatile compounds/electronic nose, a promising diagnostic tool for the future is briefly presented. With respect to NP management, antibiotics approved for the indication of NP during the last decade are discussed, namely, ceftobiprole medocaril, telavancin, ceftolozane/tazobactam, ceftazidime/avibactam, and meropenem/vaborbactam.
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Affiliation(s)
- Elena Xu
- Burns, Trauma and Critical Care Research Centre, University of Queensland Centre for Clinical Research, Faculty of Medicine, The University of Queensland, Brisbane, QLD 4029, Australia;
| | - David Pérez-Torres
- Servicio de Medicina Intensiva, Hospital Universitario Río Hortega, 47012 Valladolid, Spain;
| | - Paraskevi C. Fragkou
- Fourth Department of Internal Medicine, Attikon University Hospital, 12462 Athens, Greece;
| | - Jean-Ralph Zahar
- Microbiology Department, Infection Control Unit, Hospital Avicenne, 93000 Bobigny, France;
| | - Despoina Koulenti
- Burns, Trauma and Critical Care Research Centre, University of Queensland Centre for Clinical Research, Faculty of Medicine, The University of Queensland, Brisbane, QLD 4029, Australia;
- Second Critical Care Department, Attikon University Hospital, 12462 Athens, Greece
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Abstract
PURPOSE OF REVIEW Nosocomial pneumonia represents a significant burden even for the most resilient healthcare systems. Timely and reliable diagnosis is critical but remains a deficient field. This review critically revises the latest literature on the diagnosis of nosocomial pneumonia, including advances in imaging techniques, as well as the utility of rapid microbiological tests in establishing the etiological diagnosis. RECENT FINDINGS Studies on low radiation computed tomography (CT) and lung ultrasound (LUS) have shown promising results for early nosocomial pneumonia diagnosis; however, further data on their sensitivity and specificity are needed, especially for picking up subtle and nonspecific radiographic findings. Moreover, data supporting their superiority in pneumonia diagnosis is still limited. As for microbiological diagnosis, several culture-independent molecular diagnostic techniques have been developed, identifying both causative microorganisms as well as determinants of antimicrobial resistance, but more studies are needed to delineate their role in nosocomial pneumonia diagnosis. SUMMARY The development of nonculture dependent tests has launched a new era in microbiological nosocomial pneumonia diagnosis. These modalities along with the use of LUS and/or low radiation CT might improve the sensitivity and specificity of nosocomial pneumonia diagnosis, enhance early detection and guide the antimicrobial therapy but more studies are needed to further evaluate them and determine their role for the routine clinical practice.
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