Table 2

Intraoperative and postoperative data

Femoral Block ± PCA

PCA only

N1

Mean ± SD or N (%)

N2

Mean ± SD or N

P*


Anesthesia

31

14 (45%)

54

27 (50%)

0.67

General

14 (45%)

27 (50%)

Regional

17 (55%)

27 (50%)

Intraoperative fentanyl dose (mcg) †**

31

171.3 ± 160.8

53

259.9 ± 185.5

0.03

Length of hospital stay (days)

29

5.7 ± 6.4

52

5.0 ± 1.9

0.58

Altered sleep-wake cycle on POD1

30

10 (33%)

51

25 (49%)

0.17

Pain at rest on POD 1

31

4.6 ± 3.0

53

4.5 ± 2.9

0.89

Change in pain level, preop and POD1

31

0.9 ± 3.2

52

1.9 ± 3.7

0.20

Benzodiazepine use on POD 1

31

2 (6%)

54

9 (17%)

0.18

Hydromorphone dose on POD1(mg)**

31

4.3 ± 4.6

54

5.9 ± 6.1

0.24

Delirium on POD 1 or POD2

28

7 (25%)

51

31 (61%)

0.002


POD = postoperative day. Preop = preoperative. SD = standard deviation For a continuous variable, the numbers in parenthesis are the range of the variable

Intraoperative opioid: the amount of intravenous fentanyl administered intraoperatively

*For P-value, i) one-way ANOVA was used for the continuous variables; ii) Chi-square test was used for the categorical variables. If a cell count was less than 5, Fisher's exact test was used. **Wilcoxon non-parametric test was used

Kinjo et al. BMC Anesthesiology 2012 12:4   doi:10.1186/1471-2253-12-4

Open Data