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Spontaneous Breathing and Evolving Phenotypes of Lung Damage in Patients with COVID-19: Review of Current Evidence and Forecast of a New Scenario

Journal

JOURNAL OF CLINICAL MEDICINE
Volume 10, Issue 5, Pages -

Publisher

MDPI
DOI: 10.3390/jcm10050975

Keywords

SARS-CoV-2; COVID-19; mechanical ventilation; spontaneous breathing; acute respiratory distress syndrome; acute respiratory failure

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The mechanisms of acute respiratory failure in COVID-19 patients go beyond inflammation and viral infection, with excessive spontaneous breathing potentially playing a critical role in lung injury and disease progression. Acute lung damage can impair lung structure, leading to a fragile respiratory system in patients. This study aims to analyze the progression of injured lung phenotypes and emphasize the importance of specific respiratory/ventilatory strategies for fragile lung types in SARS-CoV-2 induced respiratory failure.
The mechanisms of acute respiratory failure other than inflammation and complicating the SARS-CoV-2 infection are still far from being fully understood, thus challenging the management of COVID-19 patients in the critical care setting. In this unforeseen scenario, the role of an individual's excessive spontaneous breathing may acquire critical importance, being one potential and important driver of lung injury and disease progression. The consequences of this acute lung damage may impair lung structure, forecasting the model of a fragile respiratory system. This perspective article aims to analyze the progression of injured lung phenotypes across the SARS-CoV-2 induced respiratory failure, pointing out the role of spontaneous breathing and also tackling the specific respiratory/ventilatory strategy required by the fragile lung type.

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