[The Effect of Different Positions on Block Plane of Isobaric Bupivacaine for Caesarean Section with Combined Spinal-Eqidural Analgesia].

Objective: To evaluate the effect of horizontal and trendelenburg left lateral position on the onset time and the spread of intrathecal isobaric bupivacaine for elective cesarean delivery.

Methods: 180 parturients were enrolled to undergo elective cesarean delivery with combined spinal-epidural anesthesia (CSE). They were randomly divided into 3 groups (n = 60) according to the different positions during anesthesia: Group I horizontal position, Group II trendelenburg position 5 degrees, Group III trendelenburg position 10 degrees.

[Effect of Epidural Volume Extension on Combined Spinal-anesthesia of Parturients in Women Undergoing Cesarean Delivery].

Objective: To evaluate the blocking characteristics of epidural volume extension on combined spinal-anesthesia of parturients undergoing cesarean delivery.

Methods: Eighty parturients were randomly allocated to one of four groups, receiving 0, 5, 10 or 15 mL normal saline, respectively, through epidural catheter at a rate of 0.5 mL/s (n = 20 in each group) after combined spinal-anesthesia with 11 mg intrathecally isobaric bupivacaine.