Abstract
Background
Pleurofibrinolysis has been reported to be potentially beneficial in the management of complicated parapneumonic effusions (CPPE) and empyemas in the adult population.
Methods
Prospective, controlled, randomized, and double-blind study, to evaluate intrapleural alteplase 10 mg (initially 20 mg was considered but bleeding events forced dose reduction) versus 100,000 UI urokinase every 24 h for a maximum of 6 days in patients with CPPE or empyemas. The primary aim was to evaluate the success rate of each fibrinolytic agent at 3 and 6 days. Success of therapy was defined as the presence of both clinical and radiological improvement, making additional fibrinolytic doses unnecessary, and eventually leading to resolution. Secondary outcomes included the safety profile of intrapleural fibrinolytics, referral for surgery, length of hospital stay, and mortality.
Results
A total of 99 patients were included, of whom 51 received alteplase and 48 urokinase. Success rates for urokinase and alteplase at 3 and 6 days were not significantly different, but when only the subgroup of CPPE was considered, urokinase resulted in a high proportion of cures. There were no differences in mortality or surgical need (overall, 3 %). Five (28 %) patients receiving 20 mg of alteplase and 4 (12 %) receiving 10 mg presented serious bleeding events.
Conclusions
If intrapleural fibrinolytics are intended to be used, urokinase may be more effective than alteplase in patients with non-purulent CPPE and have a lower rate of adverse events.
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Acknowledgments
The authors thank Fidelma Greaves and Roger Mattingly for their linguistic advice. This study was funded by the Instituto de Salud Carlos III (EC07/90479).
Author contributions
The authors take responsibility and vouch for the completeness and accuracy of the data and analyses. Dr. Alemán and Prof Porcel are the guarantors of the entire manuscript. Dr. Alemán contributed to the concept and design of the study, coordination of the acquisition of data, data analysis and interpretation of the data, and writing the article. Dr. Porcel contributed to the concept and design of the study, data acquisition and interpretation, and writing and critically revision of the manuscript. Dr. Alegre contributed to the concept and design of the study, data interpretation, and critical revision of the manuscript. Dr. Ruiz contributed to the concept and design of the study, data acquisition, and critical revision of the manuscript. Dr. Bielsa contributed to the concept and design of the study, data acquisition, and critical revision of the manuscript. Dr. Andreu contributed to the concept and design of the study, data acquisition, and critical revision of the manuscript. Dr. Deu contributed to the concept and design of the study, data acquisition, and critical revision of the manuscript. Dr. Suñé contributed to the concept and design of the study, data acquisition, statistical analysis and interpretation of the data, and critical revision of the manuscript. Dr. Martínez-Sogués contributed to the concept and design of the study, data acquisition, and critical revision of the manuscript. Dr. López contributed to the concept and design of the study, data acquisition, and critical revision of the manuscript. Dr. Pallisa contributed to the concept and design of the study, data acquisition, and critical revision of the manuscript. Dr. Schoenenberger contributed to the concept and design of the study, data acquisition, and critical revision of the manuscript. Dr. Montoro contributed to the concept and design of the study, data acquisition, statistical analysis and interpretation of the data, and critical revision of the manuscript. Prof Fernández de Sevilla contributed to the concept and design of the study, data interpretation, and critically revision of the manuscript.
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The authors report to Lung that no potential conflicts of interest exist with any companies/organizations whose products or services may be discussed in this article.
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Trial registry: ClinicalTrials.gov; No. NCT01246453; URL:www.clinicaltrial.gov.
Carmen Alemán and José M. Porcel have contributed equally to the study.
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Alemán, C., Porcel, J.M., Alegre, J. et al. Intrapleural Fibrinolysis with Urokinase Versus Alteplase in Complicated Parapneumonic Pleural Effusions and Empyemas: A Prospective Randomized Study. Lung 193, 993–1000 (2015). https://doi.org/10.1007/s00408-015-9807-6
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DOI: https://doi.org/10.1007/s00408-015-9807-6