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Figure 6 | Critical Care

Figure 6

From: Short-term effects of positive end-expiratory pressure on breathing pattern: an interventional study in adult intensive care patients

Figure 6

Changes of breathing pattern in the first, second and third breath after steps of PEEP. Results are from the investigation with PEEP steps of 30 s duration. The shaded areas represent averaged values of all breath for the corresponding PEEP level; open bars indicate the first, second, and third breath after changes of PEEP. Values are expressed as means ± 1 standard error of the mean (SEM). Note that changes of breathing pattern were beginning to manifest within the first breath and became fully established in the second breath after both upward and downward steps in PEEP. *P < 0.025, versus mean values within the corresponding PEEP level. BTPS, body temperature pressure, (water damp) saturated; PEEP, positive end-expiratory pressure; rr, respiratory rate; Tex, expiratory time; Tin, inspiratory time; VE, minute ventilation.

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Critical Care

ISSN: 1364-8535