Table 1

Demographic data and characteristics of critically ill patients, classified according to their rate of gastric emptying

Normal GE (n = 14)

Delayed GE (n = 25)

P value


Age, years

57.5 ± 3.8

56.3 ± 2.8

0.87

Gender, male/female

7/7

17/8

0.41

Body mass index, kg/m2

28.3 ± 1.3

27.7 ± 1.2

0.78

APACHE II score on study day

22.6 ± 1.1

22.1 ± 1.0

0.86

Serum creatinine, mmol/L

0.08 ± 0.01

0.11 ± 0.02

0.14

Baseline blood glucose, mmol/L

7.1 ± 0.2

7.1 ± 0.2

0.99

Admission diagnosisa, percentage (number)

Sepsis

36% (5)

19% (5)

0.28

Respiratory failure

43% (6)

15% (4)

0.13

Multi-trauma

21% (3)

32% (8)

0.48

Head injuryb

21% (3)

34% (9)

0.48

Aortic dissection

7% (1)

8% (2)

0.99

Pancreatitis

0% (0)

4% (1)

0.99

Retroperitoneal bleed

7% (1)

0% (0)

0.35

Medication, percentage (number)

Morphine ± midazolam

57% (8)

68% (17)

0.44

Propofol

43% (6)

31% (8)

0.44

Inotropes (adrenaline/noradrenalin)

57% (8)

46% (12)

0.51

Plasma CCK concentration, pmol/L

Fasting

6.1 ± 0.4

8.5 ± 1.0

0.045

Postprandial

At 60 minutes

8.2 ± 0.7

10.1 ± 0.8

0.03

At 120 minutes

7.1 ± 0.7

9.8 ± 0.8

0.03

Plasma PYY concentration, pmol/L

Fasting

15.6 ± 1.3

22.8 ± 2.2

0.03

Postprandial

At 60 minutes

21.0 ± 1.8

25.0 ± 2.2

0.02

At 120 minutes

18.9 ± 1.9

24.9 ± 2.0

0.02


Data are mean ± standard error of the mean. aOne patient may have one or more admission diagnoses. bIncluding sub-arachnoid haemorrhage and massive cerebral ischemic event. APACHE II, Acute Physiology and Chronic Health Evaluation II; CCK, cholecystokinin; GE, gastric emptying; PYY, peptide YY.

Nguyen et al. Critical Care 2007 11:R132   doi:10.1186/cc6205

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