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Regional Lung Opening and Closing Pressures in Patients With Acute Lung Injury

Acute Lung Injury Clinical Trial

Official title:
Measurement of Regional Lung Opening and Closing Pressures in Patients With Acute Lung Injury Using Electrical Impedance Tomography

Clinical Trial Summary

The purpose of this study is the measurement of regional opening and closing pressures of lung tissue by electrical impedance tomography in lung healthy and patients with acute lung injury. These values might help the setting of positive endexpiratory pressure during artificial ventilation to avoid the cyclic opening and closing of alveoli.

Clinical Trial Description

During artificial ventilation the cyclic opening and closing of alveoli during artificial ventilation results in patients with acute lung injury (ALI) in a higher mortality. A positive endexpiratory pressure (PEEP) is applied with the intention to avoid these cyclic opening and closing of alveoli. The distribution of ventilation in patients with ALI is extremely inhomogeneous, consequently there are different regional opening pressures needed to open up the alveoli and avoid closing. Finding the best level of PEEP in patients with injured lungs to avoid atelectasis and alveolar strain induced by inadequately high or low PEEP levels is a challenge.

The purpose of this study is to develop a protocol for measuring regional opening and closing pressures using the method of electrical impedance tomography in lung healthy and ALI patients. A ventilator setting guided by regional opening and closing pressures might help reducing the impairment of the lung by artificial ventilation. ;

Study Design

Intervention Model: Parallel Assignment, Masking: Open Label, Primary Purpose: Diagnostic

Related Conditions & MeSH terms

Clinical Trial Details
NCT number NCT01107847
Study type Interventional
Source University of Schleswig-Holstein
Contact Sven Pulletz, M.D.
Phone +49 431 597 2991
Email pulletz@anaesthesie.uni-kiel.de
Status Recruiting
Phase N/A
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