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Tissue plasminogen activator for the treatment of parapneumonic effusions in pediatric patients
Emily N Israel1, Allison B Blackmer
1Department of Pharmacy Services, University of Michigan Health System, Ann Arbor, Michigan; Department of Clinical, Social, and Administrative Sciences, University of Michigan College of Pharmacy, Ann Arbor, Michigan.
Insights
Tissue plasminogen activator (tPA) effectively treats pediatric pleural effusions and empyema by breaking down fibrin. This intrapleural fibrinolytic therapy offers a less invasive alternative to surgery, with ongoing research addressing remaining questions.
Area of Science:
- Pulmonology
- Pediatric Medicine
- Pharmacology
Background:
- Intrapleural fibrinolysis has a long history in treating pleural effusions.
- Complicated pleural effusions often feature fibrin and loculations, hindering drainage.
- Tissue plasminogen activator (tPA) has largely replaced older agents like urokinase and streptokinase due to improved safety and availability.
Purpose of the Study:
- To review the pathophysiology, diagnosis, and treatment of parapneumonic effusion and empyema.
- To focus on the role of intrapleural fibrinolysis, specifically tPA, in pediatric patients.
- To evaluate the current evidence supporting tPA use in children for pleural effusion management.
Main Methods:
- Review of existing literature on intrapleural fibrinolytic therapy.
- Analysis of studies investigating tPA efficacy in pediatric populations.
- Discussion of parapneumonic effusion and empyema management strategies.
Main Results:
- tPA is supported by literature for treating pleural effusions in adults and is a standard approach.
- Recent data indicate tPA is effective for pediatric pleural effusions and empyema.
- Intrapleural fibrinolysis is a viable alternative to surgical intervention in children.
Conclusions:
- tPA is a recommended treatment for pediatric pleural effusions and empyema.
- Evidence supports fibrinolytic therapy as a less invasive option than surgery for children.
- Further research is needed to address study heterogeneity and refine pediatric treatment protocols.
Abstract:
Intrapleural fibrinolysis has been investigated for the treatment of pleural effusion for several decades. Fibrinolytics have the ability to break up fibrin and loculations that characterize complicated pleural effusions, facilitating drainage. Older fibrinolytics such as urokinase and streptokinase have been replaced by tissue plasminogen activator (tPA) for this indication due to product availability and a more favorable safety profile. The literature supports tPA as a treatment approach for this indication in adult patients, and the use of tPA has become a standard management approach in this population. Over the past decade, data on the efficacy of intrapleural fibrinolytic therapy in children have also been generated, which now support the use of fibrinolysis as a treatment alternative to more invasive therapeutic options such as surgical intervention. In this review, we discuss the pathophysiology, diagnosis, and treatment of parapneumonic effusion and empyema, with a focus on intrapleural fibrinolysis, specifically tissue plasminogen activator, in the pediatric population. Recent articles provide sufficient evidence to support the use of this drug in pediatric patients for the management of pleural effusions; however, due to study heterogeneity, questions remain that may be addressed in future studies.
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