56 Parturients, aged 18-40 year, undergoing elective CS were randomly assigned to receive
sequential intrathecal injection of fentanyl and hyperbaric bupivacaine at the same rate
(normal sequential) NS or a rapid intrathecal injection of fentanyl followed by slow
injection of hyperbaric bupivacaine (rapid sequential) RS. Time of first rescue analgesia,
Dose of rescue analgesics, degree of postoperative pain, incidence of hypotension,
hypotension duration, ephedrine dose, spinal anaesthesia related complications and failed
block were recorded.