[Effects of methylergometrine and oxytocin on blood loss and uterine contraction during cesarean section].

Background: The effects of intravenous oxytocics on blood loss and uterine contraction during cesarean section were studied in 136 parturients.

Methods: The subjects were randomized to receive either methylergometrine 0.2 mg bolus (MEM group; n = 34), oxytocin 10 IU over 30 seconds (OX 30 s group; n = 34), oxytocin 10 IU over 5 minutes (OX 5 m group; n = 34) or oxytocin 10 IU over 15 minutes (OX 15 m group; n = 34).

[Time course of thoracic epidural pressure and saphenous venous pressure changes with oxytocics after fetus delivery in parturients undergoing cesarean section].

Background: We examined the effects of oxytotics administered after fetus delivery on epidural and venous pressures in 40 parturients undergoing cesarean section under spinal anesthesia.

Methods: The subjects received 0.5% isobaric bupivacaine for spinal anesthesia.

[Thoracic epidural pressure and peripheral venous pressure in the lower extremity during supine hypotensive syndrome].

Background: After induction of spinal anesthesia, thoracic epidural pressure and left saphenous venous pressure were monitored and recorded during supine hypotensive syndrome in 8 pregnant patients who underwent elective cesarean section.

Methods: A 22 G venous catheter was inserted into the left saphena, and an epidural catheter for 18 G needles was positioned 5 cm cephalad in the epidural space through a Tuohy needle at the T 11-12 intervertebral space. Each catheter was connected to a pressure transducer, and recording was started in a supine position immediately after induction of spinal anesthesia with 0.