Minerva anestesiologica
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Minerva Anestesiol
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Minerva anestesiologica · Aug 2015
Esophageal pressure measurements under different conditions of intrathoracic pressure. An in vitro study of second generation balloon catheters.
The aim of this study was to evaluate in vitro the accuracy of second generation esophageal catheters at different surrounding pressures and filling volumes and to suggest appropriate catheter management in clinical practice. ⋯ Measuring positive esophageal pressures needs higher injected volumes than usually recommended. The range of appropriate filling volumes is catheter-specific. Both absolute values and respiratory changes of esophageal pressure can be underestimated by an underfilled balloon.