Table 1 Comparison of the baseline characteristics and perioperative data of women in the manual infusion group and the pump infusion group (n = 100) and myomectomy cases (n = 23).

Age (years)

44.6 ± 8.8

46.5 ± 8.1

0.29

46.7 ± 6.3

49.9 ± 6.3

0.23

Body mass index (kg/m2)

23.5 ± 4.5

22.8 ± 3.2

0.62

26.5 ± 6.5

22.0 ± 2.7

0.06

Parity

1.4 ± 1.0

1.9 ± 0.9

0.01

1.6 ± 1.1

1.8 ± 0.7

0.65

Diagnostic hysteroscopy

10 (20)

8 (16)

0.48

—

—

Operative hysteroscopy

39 (80)

43 (84)

0.48

—

—

Haemoglobin (g/dL)

11.6 ± 2.3

10.7 ± 2.4

0.14

11.1 ± 2.9

10.6 ± 1.9

0.64

Serum K level (mmol/L)

4.1 ± 0.3

4.1 ± 0.4

0.48

4.0 ± 0.3

4.0 ± 0.5

0.73

Serum Na level (mmol/L)

140.4 ± 2.2

140.1 ± 2.4

0.34

140.3 ± 2.2

139.1 ± 3.2

0.46

Serum Cl level (mmol/L)

103.6 ± 2.4

103.5 ± 3.1

0.68

104.5 ± 1.7

104.5 ± 5.0

0.63

Serum Ca level (mg/dL)

9.1 ± 0.4

9.2 ± 0.4

0.44

9.0 ± 0.3

9.1 ± 0.4

0.86

Serum P level (mg/dL)

3.3 ± 0.5

3.4 ± 0.5

0.40

3.0 ± 0.4

3.0 ± 0.7

1.00

Serum Mg level (mmol/L)

2.0 ± 0.2

2.1 ± 0.2

0.12

2.0 ± 0.2

2.2 ± 0.2

0.17

Blood osmolality (mmol/kg)

288.7 ± 4.5

288.5 ± 4.6

0.87

286.0 ± 3.2

289.8 ± 6.4

0.33

The largest diameter of myoma (cm)

—

—

—

2.8 ± 1.1

3.3 ± 1.4

0.52

Infused fluid (mL)

981 ± 639

1355 ± 789

0.009

1419 ± 976

1647 ± 715

0.34

Collected fluid (mL)

793 ± 602

1221 ± 714

0.001

1233 ± 956

1568 ± 707

0.14

Fluid deficit (mL)

187 ± 180

134 ± 227

0.22

187 ± 158

80 ± 335

0.64

Estimated blood loss (mL)

26.5 ± 34.1

27.8 ± 50.7

0.35

45.4 ± 54.3

69.1 ± 96.0

0.80

Operative time (min)

19.4 ± 10.1

17.7 ± 7.4

0.78

28.0 ± 14.8

21.8 ± 7.8

0.46

First postoperative pain score (0–10)

0.69 ± 1.12

0.51 ± 0.83

0.48

0.55 ± 0.93

0.45 ± 0.93

0.69

Second postoperative pain score (0–10)

0.71 ± 0.73

0.34 ± 0.55

0.008

0.82 ± 0.75

0.36 ± 0.50

0.13