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Fig. 2 | BMC Pulmonary Medicine

Fig. 2

From: Targeted lateral positioning decreases lung collapse and overdistension in COVID-19-associated ARDS

Fig. 2

Lung collapse and overdistension by electrical impedance tomography in supine vs. targeted lateral body position within the left lung. Left-to-right lung asymmetry was present on initial X-Ray taken in supine body position: unequivocally more opacities within the left lung. Thus lateral right positioning (30°) was indicated (“targeted”) and performed with the platform-based rotation bed Multicare® (LINET). Line graphs of electrical impedance tomography (EIT)-based estimations of collapse and overdistension during decremental positive end-expiratory pressure (PEEP) titrations (supine vs. targeted lateral body position) are shown (mean ± SEM). Some illustrative and representative EIT images of collapse are also shown: collapsed pixels in purple. Note that the amount of collapsed units within the left lung present in the supine body position was minimized in the lateral right one. X axis: Decremental PEEP levels of the EIT-PEEP titrations. Y axis: Percent of overdistended and collapsed lung units out of the total lung imaged by EIT. Triangle: Supine body position. Square: Targeted lateral body position (lateral right). Black triangle and black square: Percent of collapsed lung units out of the total lung imaged by EIT. White triangle and white semi-filled square: Percent of overdistended lung units out of the total lung imaged by EIT

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