Table 3 The incidence of nausea and vomiting after surgery.

From: Effect of Scalp Nerve Block with Ropivacaine on Postoperative Pain in Patients Undergoing Craniotomy: A Randomized, Double Blinded Study

Time interval

Group R0.2(n = 21)

Group R0.33(n = 20)

Group R0.5(n = 22)

Group C(n = 22)

P value

2 h

2/21

0/20

1/22

1/22

0.557

4 h

0/21

1/20

0/22

2/22

0.296

6 h

1/21

3/20

3/22

3/22

0.719

24 h

1/21

1/20

3/22

1/22

0.581

  1. Data are presented as total number of patients (n).
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