Table 2 Postoperative rescue analgesia and PCA pump bolus outcomes (the number of bolus).

From: Dexmedetomidine Added to Sufentanil Patient-Controlled Intravenous Analgesia Relieves the Postoperative Pain after Cesarean Delivery: A Prospective Randomized Controlled Multicenter Study

 

Control Group

(n = 102)

Study Group

(n = 103)

P value

MD/RR

95% CI

Lower

Upper

Rescue analgesia

No (n)

89 (87.3%)

101 (98.1%)

0.003

1.12

1.04

1.22

One dose (n)

11 (10.8%)

2 (1.9%)

0.009

0.18

0.04

0.79

Four doses (n)

2 (1.9%)

0

0.229

—

—

—

PCA bolus

Total (n)

14.4 (15.7)

9.8 (12.1)*

0.020

4.60

0.74

8.46

Actual (n)

11.9 (12.4)

8.2 (10.4)*

0.022

3.70

0.55

6.85

Ineffective (n)

3.4 (6.4)

1.9 (3.6)*

0.040

1.50

0.07

2.93

  1. Values are mean (SD) or number (proportion, %). MD, mean difference. RR, risk ratio. Postoperative rescue analgesia significantly differed between the two groups (p = 0.003). One dose rescue analgesia was 100 mg intramuscular tramadol. *Significant difference between the two groups (p < 0.05).
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