Table 2 MgSO₄ protocols

MgSO₄ indications

n/N (%)

Pre-eclampsia

46/63 (73)

Neuroprotection

38/63 (60)

Pre-eclampsia and neuroprotection

37/63 (59)

None

17/63 (27)

Written protocol for indication and administration

36/38 (95)

Maximum gestational age

 34

3/38 (8)

 33

7/38 (18)

 32

27/38 (71)

 31

0/38 (0)

 30

0/38 (0)

 29

0/38 (0)

 28

1/38 (3)

MgSO₄ regimen

Loading dose of 4 g then maintenance with 1 g/h for 12 h

35/38 (92)

Loading dose of 4 g then maintenance with 2 g/h for 12 h

1/38 (3)

Only maintenance with 1 g/h for 12 h

2/38 (5)

Repeat MgSO₄ if birth does not occur after the first course of MgSO₄

33/38 (87)

Minimum interval between 2 treatments

 < 24 h

10/38 (26)

 24 to 48 h

6/38 (16)

 > 48 h

3/38 (8)

Not specified by protocol

19/38 (50)

Maximum number of treatments

 2

7/38(18)

 3

1/38 (3)

No maximum number

1/38 (3)

Not specified by the protocol

29/38 (76)

Start of MgSO₄ administration in the case of imminent delivery < 4 h (without delaying obstetric management)

34/38 (90)

Coprescription of calcium channel blockers

33/38 (87)