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An isolated perfused lung model with real time data collection and analysis of lung function
C E Bernard1, R Dahlby, B Hoener
1Department of Biopharmaceutical Sciences, School of Pharmacy, University of California, San Francisco 94143-0446, USA.
Journal of Pharmacological and Toxicological Methods
|October 27, 1997
Summary
This study introduces a novel isolated perfused lung system for real-time analysis of lung mechanics. The system offers breath-by-breath data acquisition and stability, demonstrating its utility in lung research.
Area of Science:
- Physiology
- Biomedical Engineering
Background:
- Assessing lung mechanical function requires precise and continuous monitoring.
- Existing methods may lack real-time, breath-by-breath data acquisition capabilities.
Purpose of the Study:
- To describe a novel isolated perfused lung system for real-time lung mechanical functioning analysis.
- To highlight the system's modularity and adaptability for various experimental needs.
Main Methods:
- Development of an isolated perfused lung system with modular components.
- Simultaneous monitoring and real-time analysis of lung mechanics parameters including airflow, lung volume, pressures, weight, resistance, elastance, and positive end-expiratory pressure.
- Conducting 3-hour stability studies with control lungs.
Main Results:
- The system enables real-time, breath-by-breath data acquisition and analysis of lung mechanics.
- Lung mechanics measurements remained stable over a 3-hour period in control lungs.
- Preliminary studies showed a progressive loss of lung viability when treated with the redox cycler nitrofurantoin.
Conclusions:
- The described isolated perfused lung system provides a stable and adaptable platform for comprehensive lung mechanics assessment.
- The system's real-time capabilities are advantageous for dynamic physiological studies and toxicity testing.