| Methods |
Single blinded, interventional, experimental study |
| Participants |
A total of 100 females, aged 18 to 35 years, ASA physical status I and II, with singleton pregnancy undergoing elective or emergency caesarean section under spinal anaesthesia |
| Interventions |
Participants were randomly allocated to receive spinal anaesthesia either by using 25 G Quincke or 25 G Whitacre needles. Patients were followed for 3 days postoperatively |
| Outcomes |
The primary outcome was the assessment of headache and the relation to posture. Secondary outcomes were onset of headache, its duration, severity and response to the treatment |
| Notes |
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