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Fig. 2 | Critical Care

Fig. 2

From: Personalized ventilatory strategy based on lung recruitablity in COVID-19-associated acute respiratory distress syndrome: a prospective clinical study

Fig. 2

Correlation between R/I ratio and A ‘increase’ in PaO2/FiO2, B ‘increase’ in respiratory system compliance, C ‘increase’ in non-dependent silent spaces, D ‘decrease’ in dependent silent spaces when applying high PEEP in each body position. R/I ratio was measured when releasing PEEP from 15 to 5 cmH2O in each position. Grey-colored circle and white-colored circle represent values obtained from supine position and prone position, respectively. The black short-dot line and long-dot line represent the linear regression in supine position and in prone position. In both positions, the higher R/I ratio was, the more PaO2/FiO2 improved (A), the more respiratory system compliance improved (B), the less non-dependent silent spaces increased (C), and the more dependent silent spaces decreased (D), when applying high PEEP. PEEP, positive end expiratory pressure; R/I, ratio recruitment-to-inflation ratio

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Critical Care

ISSN: 1364-8535