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Table 2 Patient demographics

From: Plasma substance P concentrations in patients undergoing general anesthesia: an objective marker associated with postoperative nausea and vomiting

 

PONV(-) group

PONV(+) group

Patients

n = 14

n = 9

Duration of anesthesia, min

168 ± 29

159 ± 30

Intraoperative remifentanil, mg

1.9 ± 0.7

2.0 ± 0.4

Blood loss, mL

41 ± 10

50 ± 50

Fluid volume, mL

918 ± 183

866 ± 313

Risk factor

  

 Tobacco use (n)

3/14

1/9

 History of motion sickness (n)

3/14

4/9

 Postoperative opioids (n)

4/14

5/9

 Woman (n)

14/14

9/9

Apfel score (0/1/2/3/4)

0/1/9/3/1

0/0/2/6/1

Analgesics used postoperatively

  

 Diclofenac

5 ± 13

9 ± 12

 Flurbiprofen axetil

20 ± 42

18 ± 32

 Pentazocine

3 ± 8

3 ± 18

  1. Data are expressed as mean ± SD (range) or number of patients
  2. PONV postoperative nausea and vomiting