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Fig. 2 | JA Clinical Reports

Fig. 2

From: A case requiring re-thoracotomy due to a significant reduction of tidal volume after commencement of chest tube drainage under pressure control ventilation following lower lobectomy

Fig. 2

The phenomenon happened after drainage. The left side of the figure shows the lung state during PCV without drainage. The right side of the figure shows the lung state under PCV after starting drainage. After drainage of – 10 cmH2O, TPP became 14 cmH2O at the expiratory phase, which would have generated X + 450 ml of residual volume. Here, 10 cmH2O of driving pressure increased TPP to 24 cmH2O but only generated 250 ml of TV probably because of increased elastance by overextension of the lung. PEEP, positive end-expiratory pressure; Plateau Prs, plateau pressure; PCV, pressure control ventilation; VCV, volume control ventilation; IPP, intrapleural pressure; TPP, transpulmonary pressure

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