Yokoyama 1997.

Study characteristics
Methods	RCT
Participants	30 women Inclusion criteria: healthy women undergoing elective CS under spinal anaesthesia at term Setting: Japan
Interventions	Dopamine versus control Group 1: dopamine continuous infusion 5 µg/kg/min Group 2: non‐dopamine infusion All women received a preload of 1000 mL of Ringer's lactate All women received a variable anaesthetic technique (L2‐3 or L3‐4) with variable 0.3% dibucaine doses (1.6‐2.0 mL)
Outcomes	Maternal: hypotension; BP; heart rate Neonatal: Apgar scores
Notes	Hypotension was defined as 90% or less of baseline BP
Risk of bias
Bias	Authors' judgement	Support for judgement
Random sequence generation (selection bias)	Unclear risk	Not reported
Allocation concealment (selection bias)	Unclear risk	Not reported
Blinding of participants and personnel (performance bias) All outcomes	Unclear risk	Not reported
Blinding of outcome assessment (detection bias) All outcomes	Unclear risk	Not reported
Incomplete outcome data (attrition bias) All outcomes	Unclear risk	Not reported
Selective reporting (reporting bias)	Unclear risk	Not apparent, but not well reported
Other bias	Unclear risk	Not apparent, but not well reported