1
|
Karandashova S, Florova G, Idell S, Komissarov AA. From Bedside to the Bench—A Call for Novel Approaches to Prognostic Evaluation and Treatment of Empyema. Front Pharmacol 2022; 12:806393. [PMID: 35126140 PMCID: PMC8811368 DOI: 10.3389/fphar.2021.806393] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2021] [Accepted: 12/31/2021] [Indexed: 11/13/2022] Open
Abstract
Empyema, a severe complication of pneumonia, trauma, and surgery is characterized by fibrinopurulent effusions and loculations that can result in lung restriction and resistance to drainage. For decades, efforts have been focused on finding a universal treatment that could be applied to all patients with practice recommendations varying between intrapleural fibrinolytic therapy (IPFT) and surgical drainage. However, despite medical advances, the incidence of empyema has increased, suggesting a gap in our understanding of the pathophysiology of this disease and insufficient crosstalk between clinical practice and preclinical research, which slows the development of innovative, personalized therapies. The recent trend towards less invasive treatments in advanced stage empyema opens new opportunities for pharmacological interventions. Its remarkable efficacy in pediatric empyema makes IPFT the first line treatment. Unfortunately, treatment approaches used in pediatrics cannot be extrapolated to empyema in adults, where there is a high level of failure in IPFT when treating advanced stage disease. The risk of bleeding complications and lack of effective low dose IPFT for patients with contraindications to surgery (up to 30%) promote a debate regarding the choice of fibrinolysin, its dosage and schedule. These challenges, which together with a lack of point of care diagnostics to personalize treatment of empyema, contribute to high (up to 20%) mortality in empyema in adults and should be addressed preclinically using validated animal models. Modern preclinical studies are delivering innovative solutions for evaluation and treatment of empyema in clinical practice: low dose, targeted treatments, novel biomarkers to predict IPFT success or failure, novel delivery methods such as encapsulating fibrinolysin in echogenic liposomal carriers to increase the half-life of plasminogen activator. Translational research focused on understanding the pathophysiological mechanisms that control 1) the transition from acute to advanced-stage, chronic empyema, and 2) differences in outcomes of IPFT between pediatric and adult patients, will identify new molecular targets in empyema. We believe that seamless bidirectional communication between those working at the bedside and the bench would result in novel personalized approaches to improve pharmacological treatment outcomes, thus widening the window for use of IPFT in adult patients with advanced stage empyema.
Collapse
Affiliation(s)
- Sophia Karandashova
- Department of Pediatrics, University of California San Francisco, San Francisco, CA, United States
| | - Galina Florova
- Department of Cellular and Molecular Biology, The University of Texas Health Science Center at Tyler, Tyler, TX, United States
| | - Steven Idell
- Department of Cellular and Molecular Biology, The University of Texas Health Science Center at Tyler, Tyler, TX, United States
| | - Andrey A. Komissarov
- Department of Cellular and Molecular Biology, The University of Texas Health Science Center at Tyler, Tyler, TX, United States
- *Correspondence: Andrey A. Komissarov,
| |
Collapse
|
2
|
Thomas R, Rahman NM, Maskell NA, Lee YCG. Pleural effusions and pneumothorax: Beyond simple plumbing: Expert opinions on knowledge gaps and essential next steps. Respirology 2020; 25:963-971. [PMID: 32613624 DOI: 10.1111/resp.13881] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2020] [Revised: 04/15/2020] [Accepted: 04/29/2020] [Indexed: 12/17/2022]
Abstract
Pleural diseases affect millions of people worldwide. Pleural infection, malignant pleural diseases and pneumothorax are common clinical challenges. A large number of recent clinical trials have provided an evidence-based platform to evaluate conventional and novel methods to drain pleural effusions/air which reduce morbidity and unnecessary interventions. These successes have generated significant enthusiasm and raised the profile of pleural medicine as a new subspecialty. The ultimate goal of pleural research is to prevent/stop development of pleural effusions/pneumothorax. Current research studies mainly focus on the technical aspects of pleural drainage. Significant knowledge gaps exist in many aspects such as understanding of the pathobiology of the underlying pleural diseases, pharmacokinetics of pleural drug delivery, etc. Answers to these important questions are needed to move the field forward. This article collates opinions of leading experts in the field in highlighting major knowledge gaps in common pleural diseases to provoke thinking beyond pleural drainage. Recognizing the key barriers will help prioritize future research in the quest to ultimately cure (rather than just drain) these pleural conditions.
Collapse
Affiliation(s)
- Rajesh Thomas
- Department of Respiratory Medicine, Sir Charles Gairdner Hospital, Perth, WA, Australia.,Pleural Medicine Unit, Institute for Respiratory Health, Perth, WA, Australia
| | - Najib M Rahman
- Oxford Centre for Respiratory Medicine, Churchill Hospital, Oxford, UK.,Oxford NIHR Biomedical Research Centre, Oxford, UK
| | - Nick A Maskell
- Academic Respiratory Unit, Bristol Medical School, University of Bristol, Bristol, UK.,North Bristol Lung Centre, North Bristol NHS Trust, Bristol, UK
| | - Y C Gary Lee
- Department of Respiratory Medicine, Sir Charles Gairdner Hospital, Perth, WA, Australia.,Pleural Medicine Unit, Institute for Respiratory Health, Perth, WA, Australia.,Centre for Respiratory Health, School of Medicine, University of Western Australia, Perth, WA, Australia
| |
Collapse
|
3
|
Lee YCG, Fitzgerald DB. Pleural Biopsy to Capture Causative Microbe: A New Piece of the Pleural Infection Jigsaw. Chest 2019; 154:743-745. [PMID: 30290924 DOI: 10.1016/j.chest.2018.04.038] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2018] [Revised: 04/25/2018] [Accepted: 04/27/2018] [Indexed: 11/19/2022] Open
Affiliation(s)
- Y C Gary Lee
- Department of Respiratory Medicine, Sir Charles Gairdner Hospital, Perth, WA, Australia; School of Medicine and Pharmacology, University of Western Australia, Perth, WA, Australia; Institute for Respiratory Health, University of Western Australia, Perth, WA, Australia.
| | - Deirdre B Fitzgerald
- Institute for Respiratory Health, University of Western Australia, Perth, WA, Australia
| |
Collapse
|
4
|
Pleural Tap-Guided Antimicrobial Treatment for Pneumonia with Parapneumonic Effusion or Pleural Empyema in Children: A Single-Center Cohort Study. J Clin Med 2019; 8:jcm8050698. [PMID: 31100958 PMCID: PMC6572435 DOI: 10.3390/jcm8050698] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2019] [Revised: 05/01/2019] [Accepted: 05/08/2019] [Indexed: 01/01/2023] Open
Abstract
Parapneumonic effusion or pleural empyema (PPE/PE) is a frequent complication of community-acquired pneumonia (CAP) in children. Different management approaches exist for this condition. We evaluated a 14-day treatment with amoxicillin (AMX) with/without clavulanic acid (AMC) confirmed or modified by microbiological findings from pleural tap. Children ≤16 years of age with radiologically diagnosed PPE/PE and initial diagnostic pleural tap were included at University Children’s Hospital Zurich from 2001–2015. AMX/AMC was given for 14 days and rationalized according to microbiological pleural tap results. Clinical and radiological follow-up was scheduled until six months or full recovery. In 114 of 147 (78%) children with PPE/PE a pathogen was identified by culture, polymerase chain reaction (PCR), and/or antigen testing. Streptococcus pneumoniae was detected in 90 (79%), S. pyogenes in 13 (11%), and Staphylococcus aureus in seven cases (6%), all but two cultured pathogens (96%) were sensitive to AMX/AMC. One-hundred two of 147 (69%) patients received treatment with AMX/AMC for 14 days. They recovered more rapidly than patients with a different management (p = 0.026). Of 139 children with follow-up, 134 (96%) patients fully recovered. In conclusion, 14-day AMX/AMC treatment confirmed and rarely modified by microbiological findings from pleural tap resulted in full recovery in >95% of children with PPE/PE.
Collapse
|
5
|
Amariei DE, Tran BC, Yao R, Britt EM, Holden VK, Sachdeva A, Pickering EM. Intrapleural Alteplase and Dornase in a Pregnant Woman With Complicated Parapneumonic Effusion. Ann Thorac Surg 2019; 108:e293-e294. [PMID: 30978314 DOI: 10.1016/j.athoracsur.2019.03.023] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/25/2019] [Accepted: 03/03/2019] [Indexed: 01/18/2023]
Abstract
The use of intrapleural alteplase and dornase in pregnant patients remains an uncertain practice because bleeding complications in these cases could be devastating. We present a case in which we successfully used a modified protocol safely.
Collapse
Affiliation(s)
- Diana E Amariei
- Division of Pulmonary & Critical Care Medicine, University of Maryland School of Medicine, Baltimore, Maryland.
| | - Bich-Chieu Tran
- Division of Pulmonary & Critical Care Medicine, University of Maryland School of Medicine, Baltimore, Maryland
| | - Roufan Yao
- Gynecology & Reproductive Services, Department of Obstetrics, University of Maryland School of Medicine, Baltimore, Maryland
| | - Edward M Britt
- Division of Pulmonary & Critical Care Medicine, University of Maryland School of Medicine, Baltimore, Maryland
| | - Van K Holden
- Division of Pulmonary & Critical Care Medicine, University of Maryland School of Medicine, Baltimore, Maryland
| | - Ashutosh Sachdeva
- Division of Pulmonary & Critical Care Medicine, University of Maryland School of Medicine, Baltimore, Maryland
| | - Edward M Pickering
- Division of Pulmonary & Critical Care Medicine, University of Maryland School of Medicine, Baltimore, Maryland
| |
Collapse
|