Clinical study demonstrates that in vivo balloon calibration provides reliable esophageal pressure measurements during mechanical ventilation, suggesting improved respiratory monitoring.
Under mechanical ventilation, an increase of balloon filling above the conventionally recommended low volumes warrants complete transmission of Pes swings, but is associated with significant elevation of baseline. A simple calibration procedure allows finding the filling volume associated with the best transmission of tidal Pes change and subtracting the associated baseline artifact, thus making measurement of absolute values of Pes reliable.
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Mojoli et al. (2016) studied this question.
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