Proximal gastric response to small intestinal nutrients is abnormal in mechanically ventilated critically ill patients

Figure 1 Changes in proximal gastric volume during the 2 kcal/min infusion, in healthy (dotted line, n = 12) and critically ill (solid line, n = 13) subjects. Data are mean ± SE. ^aP < 0.05 vs healthy subjects.

Figure 2 Changes in proximal gastric volume from baseline at the 10^th minute and at peak level during the nutrient infusion, in healthy (open circle, n = 12) and critically ill (closed circle, n = 13) subjects. ^cP < 0.001 vs healthy subjects.

Figure 3 Time course for the proximal gastric volume to return to baseline level after nutrient stimulation, in healthy (dotted line, n = 12) and critically ill (solid line n = 13) subjects. Data are mean ± SE.

Figure 4 Fundic slow volume waves (per 10 min) during the 2 kcal/min nutrient infusion, in healthy (open bar, n = 12) and critically ill (closed bar, n = 13) subjects. Data are mean ± SE. ^aP < 0.05 vs healthy subjects.