ED90 for Hyperbaric Bupivacaine in Super Obese Parturients

ED90 for Hyperbaric Bupivacaine in Spinal Anesthesia for Cesarean Delivery in Super Obese Parturients

The aim of this study is to determine the ED90 of hyperbaric intrathecal bupivacaine for the super obese population undergoing cesarean section under a combined spinal epidural technique.

Inclusion Criteria:

• American Society of Anesthesiology (ASA) class 2 and 3
• English speaking
• Gestational age > 36 weeks
• Scheduled for cesarean delivery under combined spinal epidural anesthesia
• 18 years or older
• BMI > 50 kg/m2

Exclusion Criteria:

• History of past or current intravenous drug or chronic opioid abuse
• Allergy or contraindication to any study medications
• Intrapartum cesarean delivery under epidural anesthesia
• Cesarean delivery under general anesthesia