Lumbar epidurals are used commonly for analgesia in labour, as well as for anaesthesia for operative interventions, such as lower segment Caesarean section (LSCS) and instrumental delivery. It is well known that epidural anaesthesia can cause haemodynamic changes, namely peripheral vasodilatation and a reduction in systemic vascular resistance (SVR) due to blockade of the sympathetic nervous system which controls many autonomic functions including blood pressure and heart rate 1. This can lead to a reduction in blood pressure if the CO is maintained, since the three are related by the formula; mean arterial pressure (MAP) = CO x SVR. If the CO drops, for example due to hypovolaemia (decreased amount of fluid in the circulation) or postural changes, then there will be a greater decrease in the blood pressure.