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. 2021 Mar 1;203(5):575–584. doi: 10.1164/rccm.201909-1687OC

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Copyright © 2021 by the American Thoracic Society

This article is open access and distributed under the terms of the Creative Commons Attribution Non-Commercial No Derivatives License 4.0 (http://creativecommons.org/licenses/by-nc-nd/4.0/). For commercial usage and reprints, please contact Diane Gern (dgern@thoracic.org).

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Figure 2. — Clinical study. Transthoracic echocardiography in patients with acute respiratory distress syndrome (ARDS) and class III obesity. The right heart function was evaluated for each study phase: mechanical ventilation guided by the ARDS Network (Lung_ARDSnet) and a sequence of procedures (lung recruitment maneuver → decremental positive end-expiratory pressure trial → second lung recruitment maneuver → optimal positive end-expiratory pressure) to recruit lung atelectasis (Lung_RECRUITED). (A) TAPSE was measured in 17 patients, and there was no significant difference between phases. (B) S′ was measured in 11 patients, and there was no significant difference between phases. (C) CVP was measure in nine patients for each study phase. Data are presented as the mean ± SD. *Lung_ARDSnet versus Lung_RECRUITED: P = 0.03; mean of differences, 3; 95% confidence interval, 0.4–5.6. CVP = central venous pressure; S′ = tricuspid systolic excursion velocity; TAPSE = tricuspid annular plane systolic excursion.