Mahajan 1992.
Methods | Treatment allocation:
Women were allocated to receive general, epidural or spinal anaesthesia according to a random chart. Allocation concealment: No details given. Documentation of exclusions: No exclusions. Blinding of outcome assessment: Not mentioned. Losses to follow up: None. |
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Participants | Inclusion criteria:
99 healthy parturients (ASA 1) presenting for elective caesarean section.
Exclusion criteria:
None mentioned. Number lost to follow up: None. |
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Interventions | Spinal anaesthesia:
22‐24 gauge needle inserted in the lateral position at L2‐3 or L3‐4. 1.2‐1.5 ml of 1% bupivacaine injected slowly. Epidural anaesthesia: Tuohy needle, lateral position, L2‐3 or L3‐4, loss of resistance to air, 12‐20 ml 0.5% bupivacaine injected slowly. Women were then placed supine with a wedge under the right hip. Women in the epidural and spinal groups were infused with 750‐1000 ml of balanced salt solution within 5‐10 minutes after injection of local anaesthetic. |
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Outcomes | Number of women requiring treatment for hypotension was recorded. Ephedrine was given if systolic blood pressure decreased > 25% from pre‐anaesthetic values. Neonates were assessed but no interventions were mentioned. |
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Notes | India. | |
Risk of bias | ||
Bias | Authors' judgement | Support for judgement |
Allocation concealment (selection bias) | Unclear risk | B ‐ Unclear |