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01.08.2011 | Commentary | Ausgabe 4/2011

Critical Care 4/2011

On the imperfect synchrony between patient and ventilator

Critical Care > Ausgabe 4/2011
Paolo Navalesi
Wichtige Hinweise

Competing interests

The author declares that they have no competing interests.


Because patient-ventilator asynchrony (PVA) is recognized as a major clinical problem for patients undergoing ventilatory assistance, automatic methods of PVA detection have been proposed in recent years. A novel approach is airflow spectral analysis, which, when related to visual inspection of airway pressure and flow waveforms, has been shown to reach a sensitivity and specificity of greater than 80% in detecting an asynchrony index of greater than 10%. The availability of automatic non-invasive methods of PVA detection at the bedside would likely be of benefit in intensive care unit practice, but they may be limited by shortcomings, so clear proof of their effectiveness is needed.

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