Comparative Study of Premixed Versus Sequential Administration of Hyperbaric Bupivacaine and Fentanyl for Subarachnoid Block in Caesarean Section: A Randomized Controlled Trial

Sequential intrathecal administration of hyperbaric bupivacaine and fentanyl provides superior sensory block dynamics and improved haemodynamic stability compared to premixed administration, without compromising neonatal outcomes. This technique is simple, effective, and suitable for routine obstetric anaesthesia.