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Assisted mechanical ventilation promotes recovery of diaphragmatic thickness in critically ill patients: a prospective observational study.


ABSTRACT: BACKGROUND:Diaphragm atrophy and dysfunction are consequences of mechanical ventilation and are determinants of clinical outcomes. We hypothesize that partial preservation of diaphragm function, such as during assisted modes of ventilation, will restore diaphragm thickness. We also aim to correlate the changes in diaphragm thickness and function to outcomes and clinical factors. METHODS:This is a prospective, multicentre, observational study. Patients mechanically ventilated for more than 48?h in controlled mode and eventually switched to assisted ventilation were enrolled. Diaphragm ultrasound and clinical data collection were performed every 48?h until discharge or death. A threshold of 10% was used to define thinning during controlled and recovery of thickness during assisted ventilation. Patients were also classified based on the level of diaphragm activity during assisted ventilation. We evaluated the association between changes in diaphragm thickness and activity and clinical outcomes and data, such as ventilation parameters. RESULTS:Sixty-two patients ventilated in controlled mode and then switched to the assisted mode of ventilation were enrolled. Diaphragm thickness significantly decreased during controlled ventilation (1.84?±?0.44 to 1.49?±?0.37?mm, p?

SUBMITTER: Grassi A 

PROVIDER: S-EPMC7068963 | biostudies-literature | 2020 Mar

REPOSITORIES: biostudies-literature

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Assisted mechanical ventilation promotes recovery of diaphragmatic thickness in critically ill patients: a prospective observational study.

Grassi Alice A   Ferlicca Daniela D   Lupieri Ermes E   Calcinati Serena S   Francesconi Silvia S   Sala Vittoria V   Ormas Valentina V   Chiodaroli Elena E   Abbruzzese Chiara C   Curto Francesco F   Sanna Andrea A   Zambon Massimo M   Fumagalli Roberto R   Foti Giuseppe G   Bellani Giacomo G  

Critical care (London, England) 20200312 1


<h4>Background</h4>Diaphragm atrophy and dysfunction are consequences of mechanical ventilation and are determinants of clinical outcomes. We hypothesize that partial preservation of diaphragm function, such as during assisted modes of ventilation, will restore diaphragm thickness. We also aim to correlate the changes in diaphragm thickness and function to outcomes and clinical factors.<h4>Methods</h4>This is a prospective, multicentre, observational study. Patients mechanically ventilated for m  ...[more]

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